[1] | 1 | /* libmondo-stream.c
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[128] | 2 | $Id: libmondo-stream.c 2900 2011-10-28 23:26:07Z bruno $
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[1] | 3 |
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| 4 | ...tools for talking to tapes, Monitas streams, etc.
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| 5 |
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| 6 | */
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| 7 |
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| 8 |
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| 9 | /**
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| 10 | * @file
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| 11 | * Functions for writing data to/reading data from streams (tape, CD stream, etc.)
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| 12 | */
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| 13 |
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| 14 | #include "my-stuff.h"
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[2211] | 15 | #include "mr_mem.h"
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[1] | 16 | #include "mondostructures.h"
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| 17 | #include "libmondo-devices.h"
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[541] | 18 | #include "lib-common-externs.h"
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[1] | 19 | #include "libmondo-stream.h"
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| 20 | #include "libmondo-string-EXT.h"
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| 21 | #include "libmondo-files-EXT.h"
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[541] | 22 | #include "libmondo-gui-EXT.h"
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[1] | 23 | #include "libmondo-fork-EXT.h"
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| 24 | #include "libmondo-tools-EXT.h"
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| 25 | #include "libmondo-fifo-EXT.h"
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| 26 |
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| 27 | #define EXTRA_TAPE_CHECKSUMS
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[1934] | 28 | #define STR_HEADER "Mondolicious, baby"
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[1] | 29 |
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| 30 | /*@unused@*/
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[128] | 31 | //static char cvsid[] = "$Id: libmondo-stream.c 2900 2011-10-28 23:26:07Z bruno $";
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[1] | 32 | extern bool g_sigpipe;
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| 33 | extern int g_tape_buffer_size_MB;
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| 34 |
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[948] | 35 | extern char *g_getfacl;
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| 36 | extern char *g_getfattr;
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[1316] | 37 | extern char *MONDO_LOGFILE;
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[948] | 38 |
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[1645] | 39 | /* Reference to global bkpinfo */
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| 40 | extern struct s_bkpinfo *bkpinfo;
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| 41 |
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[1] | 42 | /**
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| 43 | * @addtogroup globalGroup
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| 44 | * @{
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| 45 | */
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| 46 | /**
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| 47 | * The file pointer for the opened tape/CD stream.
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| 48 | * Opened and closed by openin_tape(), openin_cdstream(),
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| 49 | * openout_tape(), openout_cdstream(), closein_tape(), closein_cdstream(),
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| 50 | * closeout_tape(), and closeout_cdstream().
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| 51 | */
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| 52 | FILE *g_tape_stream = NULL;
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| 53 |
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| 54 |
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| 55 | /**
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| 56 | * The position (in kilobytes) where we are on the tape.
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| 57 | */
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| 58 | long long g_tape_posK = 0;
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| 59 |
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| 60 | /**
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| 61 | * The current media number we're using. This value is 1-based.
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| 62 | */
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[128] | 63 | int g_current_media_number = -1;
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[1] | 64 |
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| 65 | /**
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| 66 | * The tape catalog that keeps track of files written to tape.
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| 67 | */
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| 68 | struct s_tapecatalog *g_tapecatalog;
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| 69 |
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| 70 | /* @} - end of globalGroup */
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| 71 |
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[1645] | 72 | int write_backcatalog_to_tape();
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[1] | 73 |
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| 74 |
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| 75 |
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| 76 |
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| 77 |
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| 78 | /**
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| 79 | * @addtogroup streamGroup
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| 80 | * @{
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| 81 | */
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| 82 | /**
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| 83 | * Close the global output file descriptor which Mondo has used to read
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| 84 | * from the CD stream.
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| 85 | * @param bkpinfo The backup information structure. Passed directly to closein_tape().
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| 86 | * @return 0 for success, nonzero for failure.
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| 87 | * @note This should be called by restore processes only.
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| 88 | */
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[1645] | 89 | int closein_cdstream()
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[1] | 90 | {
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[1645] | 91 | return (closein_tape());
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[1] | 92 | }
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| 93 |
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| 94 |
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| 95 | /**
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| 96 | * Close the global output file descriptor which Mondo has used to read
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| 97 | * from buffer or dd, which read from the tape.
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| 98 | * @param bkpinfo The backup information structure. Unused.
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| 99 | * @return 0 for success, nonzero for failure.
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| 100 | * @note This should be called by restore processes only.
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| 101 | * @note This function also works for cdstreams for now, but don't count on this behavior.
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| 102 | * @bug @p bkpinfo parameter is unused.
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| 103 | */
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[1645] | 104 | int closein_tape()
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[1] | 105 | {
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[128] | 106 | /*@ int's ******************************************************* */
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| 107 | int retval = 0;
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| 108 | int res = 0;
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| 109 | int ctrl_chr = '\0';
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[1] | 110 |
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[128] | 111 | /*@ buffers ***************************************************** */
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| 112 | char fname[MAX_STR_LEN];
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[1] | 113 |
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[128] | 114 | /*@ long long's ************************************************* */
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| 115 | long long size;
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| 116 | char *blk;
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| 117 | int i;
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[1] | 118 |
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[128] | 119 | blk = (char *) malloc(256 * 1024);
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[1] | 120 |
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[128] | 121 | log_it("closein_tape() -- entering");
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| 122 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
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| 123 | retval += res;
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| 124 | if (ctrl_chr != BLK_END_OF_BACKUP) {
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| 125 | wrong_marker(BLK_END_OF_BACKUP, ctrl_chr);
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| 126 | }
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| 127 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
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| 128 | retval += res;
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| 129 | if (ctrl_chr != BLK_END_OF_TAPE) {
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| 130 | wrong_marker(BLK_END_OF_TAPE, ctrl_chr);
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| 131 | }
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| 132 | for (i = 0; i < 8 && !feof(g_tape_stream); i++) {
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| 133 | (void) fread(blk, 1, 256 * 1024, g_tape_stream);
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| 134 | }
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| 135 | sleep(1);
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| 136 | paranoid_system("sync");
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| 137 | sleep(1);
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| 138 | paranoid_pclose(g_tape_stream);
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| 139 | log_it("closein_tape() -- leaving");
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[1] | 140 | /*
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| 141 | for(i=0; i < g_tapecatalog->entries; i++)
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| 142 | {
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| 143 | log_it("i=%d type=%s num=%d aux=%ld", i, (g_tapecatalog->el[i].type==fileset)?"fileset":"bigslice", g_tapecatalog->el[i].number, g_tapecatalog->el[i].aux);
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| 144 | }
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| 145 | */
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[128] | 146 | if (!bkpinfo->please_dont_eject) {
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| 147 | eject_device(bkpinfo->media_device);
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| 148 | }
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| 149 | paranoid_free(blk);
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| 150 | paranoid_free(g_tapecatalog);
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| 151 | return (retval);
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[1] | 152 | }
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| 153 |
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| 154 |
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| 155 |
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| 156 | /**
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| 157 | * Close the global output file descriptor which Mondo has been using to write
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| 158 | * to the tape device (via buffer or dd).
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| 159 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
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| 160 | * @return 0 for success, nonzero for failure.
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| 161 | * @note This should be called by backup processes only.
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| 162 | */
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[1645] | 163 | int closeout_tape()
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[1] | 164 | {
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[128] | 165 | /*@ int's ******************************************************* */
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| 166 | int retval = 0;
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[1] | 167 | // int res = 0;
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| 168 | // int ctrl_chr = '\0';
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| 169 |
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[128] | 170 | /*@ buffers ***************************************************** */
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[1] | 171 | // char fname[MAX_STR_LEN];
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| 172 |
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[128] | 173 | /*@ long long's ************************************************* */
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[1] | 174 | // long long size;
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[128] | 175 | int i;
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| 176 | char *blk;
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[1] | 177 |
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[128] | 178 | blk = (char *) malloc(256 * 1024);
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[1] | 179 |
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[128] | 180 | sleep(1);
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| 181 | paranoid_system("sync");
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| 182 | sleep(1);
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| 183 | log_it("closeout_tape() -- entering");
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| 184 | retval +=
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[684] | 185 | write_header_block_to_stream((off_t)0, "end-of-backup",
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[128] | 186 | BLK_END_OF_BACKUP);
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[684] | 187 | retval += write_header_block_to_stream((off_t)0, "end-of-tape", BLK_END_OF_TAPE); /* just in case */
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[1] | 188 | /* write 1MB of crap */
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[128] | 189 | for (i = 0; i < 256 * 1024; i++) {
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| 190 | blk[i] = (int) (random() & 0xFF);
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| 191 | }
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| 192 | for (i = 0; i < 4 * 8; i++) {
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| 193 | (void) fwrite(blk, 1, 256 * 1024, g_tape_stream);
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| 194 | if (should_we_write_to_next_tape
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[684] | 195 | (bkpinfo->media_size[g_current_media_number], (off_t)256 * 1024)) {
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[1645] | 196 | start_to_write_to_next_tape();
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[128] | 197 | }
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| 198 | }
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[1] | 199 | /* write 1MB of zeroes */
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| 200 | /*
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| 201 | for (i = 0; i < 256*1024; i++)
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| 202 | {
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| 203 | blk[i] = 0;
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| 204 | }
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| 205 | for (i = 0; i < 4; i++)
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| 206 | {
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| 207 | fwrite (blk, 1, 256*1024, g_tape_stream);
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| 208 | if (should_we_write_to_next_tape (bkpinfo->media_size[g_current_media_number], 256*1024))
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| 209 | {
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[1645] | 210 | start_to_write_to_next_tape ();
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[1] | 211 | }
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| 212 | }
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| 213 | */
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[128] | 214 | sleep(2);
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| 215 | paranoid_pclose(g_tape_stream);
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| 216 | log_it("closeout_tape() -- leaving");
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| 217 | for (i = 0; i < g_tapecatalog->entries; i++) {
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| 218 | log_it("i=%d type=%s num=%d aux=%ld posK=%lld", i,
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| 219 | (g_tapecatalog->el[i].type ==
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| 220 | fileset) ? "fileset" : "bigslice",
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| 221 | g_tapecatalog->el[i].number, g_tapecatalog->el[i].aux,
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| 222 | g_tapecatalog->el[i].tape_posK);
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| 223 | }
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| 224 | // if (!bkpinfo->please_dont_eject)
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| 225 | // { eject_device(bkpinfo->media_device); }
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| 226 | paranoid_free(blk);
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| 227 | paranoid_free(g_tapecatalog);
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| 228 | return (retval);
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[1] | 229 | }
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| 230 |
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| 231 |
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| 232 |
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[128] | 233 | bool mt_says_tape_exists(char *dev)
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[1] | 234 | {
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[2520] | 235 | char *command = NULL;
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[128] | 236 | int res;
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[1] | 237 |
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[2520] | 238 | mr_asprintf(&command, "mt -f %s status", dev);
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[128] | 239 | res = run_program_and_log_output(command, 1);
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[2520] | 240 | mr_free(command);
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| 241 |
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[128] | 242 | if (res) {
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| 243 | return (FALSE);
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| 244 | } else {
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| 245 | return (TRUE);
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| 246 | }
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[1] | 247 | }
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| 248 |
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| 249 |
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| 250 |
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| 251 | /**
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| 252 | * Determine the name and size of the tape device. Tries the SCSI tape for
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| 253 | * this platform, then the IDE tape, then "/dev/st0", then "/dev/osst0".
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| 254 | * @param dev Where to put the found tape device.
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| 255 | * @param siz Where to put the tape size (a string like "4GB")
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| 256 | * @return 0 if success, nonzero if failure (in which @p dev and @p siz are undefined).
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| 257 | */
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[128] | 258 | int find_tape_device_and_size(char *dev, char *siz)
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[1] | 259 | {
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[128] | 260 | char tmp[MAX_STR_LEN];
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[2520] | 261 | char *command = NULL;
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[128] | 262 | char cdr_exe[MAX_STR_LEN];
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| 263 | int res;
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[1] | 264 |
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[128] | 265 | log_to_screen("I am looking for your tape streamer. Please wait.");
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| 266 | dev[0] = siz[0] = '\0';
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| 267 | if (find_home_of_exe("cdrecord")) {
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| 268 | strcpy(cdr_exe, "cdrecord");
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| 269 | } else {
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| 270 | strcpy(cdr_exe, "dvdrecord");
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[1] | 271 | }
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[2520] | 272 | mr_asprintf(&command, "%s -scanbus 2> /dev/null | grep -i tape | wc -l",
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[128] | 273 | cdr_exe);
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| 274 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[2520] | 275 | mr_free(command);
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| 276 |
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[128] | 277 | if (atoi(tmp) != 1) {
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| 278 | log_it
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| 279 | ("Either too few or too many tape streamers for me to detect...");
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| 280 | strcpy(dev, VANILLA_SCSI_TAPE);
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| 281 | return 1;
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| 282 | }
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[2520] | 283 | mr_asprintf(&command,
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[128] | 284 | "%s -scanbus 2> /dev/null | tr -s '\t' ' ' | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | cut -d' ' -f2 | head -n1",
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| 285 | cdr_exe);
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| 286 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[2520] | 287 | mr_free(command);
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| 288 |
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[128] | 289 | if (strlen(tmp) < 2) {
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| 290 | log_it("Could not find tape device");
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| 291 | return 1;
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| 292 | }
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[2520] | 293 | mr_asprintf(&command,
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[128] | 294 | "%s -scanbus 2> /dev/null | tr -s '\t' ' ' | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | cut -d' ' -f3 | cut -d')' -f1 | head -n1",
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| 295 | cdr_exe);
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| 296 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[2520] | 297 | mr_free(command);
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| 298 |
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[128] | 299 | strcpy(dev, VANILLA_SCSI_TAPE);
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| 300 | dev[strlen(dev) - 1] = '\0';
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| 301 | strcat(dev, tmp); // e.g. '/dev/st0' becomes '/dev/stN'
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| 302 | res = 0;
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| 303 | if (!mt_says_tape_exists(dev)) {
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| 304 | strcpy(dev, ALT_TAPE);
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| 305 | if (!mt_says_tape_exists(dev)) {
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| 306 | log_it("Cannot openin %s", dev);
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| 307 | strcpy(dev, "/dev/st0");
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| 308 | if (!mt_says_tape_exists(dev)) {
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| 309 | log_it("Cannot openin %s", dev);
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| 310 | strcpy(dev, "/dev/osst0");
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| 311 | if (!mt_says_tape_exists(dev)) {
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| 312 | res++;
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| 313 | } else {
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| 314 | res = 0;
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| 315 | }
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| 316 | }
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| 317 | }
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| 318 | }
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[1] | 319 |
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[128] | 320 | log_it("At this point, dev = %s and res = %d", dev, res);
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| 321 |
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| 322 | strcpy(tmp, call_program_and_get_last_line_of_output("\
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[1] | 323 | cdrecord -scanbus 2> /dev/null | tr -s '\t' ' ' | \
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| 324 | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | \
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| 325 | awk '{for(i=1; i<NF; i++) { if (index($i, \"GB\")>0) { print $i;};};};'"));
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| 326 |
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[128] | 327 | if (mt_says_tape_exists(dev)) {
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| 328 | res = 0;
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| 329 | } else {
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| 330 | log_it("Turning %s", dev);
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| 331 | strcpy(tmp, (strrchr(dev, '/') != NULL) ? strrchr(dev, '/') : dev);
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| 332 | sprintf(dev, "/dev/os%s", tmp);
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| 333 | log_it("...into %s", dev);
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| 334 | if (mt_says_tape_exists(dev)) {
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| 335 | res = 0;
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| 336 | } else {
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| 337 | res++;
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| 338 | }
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| 339 | }
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[1] | 340 |
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[128] | 341 | siz[0] = '\0';
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| 342 | log_it("res=%d; dev=%s", res, dev);
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[1] | 343 |
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[128] | 344 | if (res) {
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| 345 | return (res);
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| 346 | }
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[1] | 347 |
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[128] | 348 | if (strlen(tmp) < 2) {
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| 349 | siz[0] = '\0';
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| 350 | log_it("Warning - size of tape unknown");
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| 351 | return (0);
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| 352 | } else {
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| 353 | strcpy(siz, tmp);
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| 354 | return (0);
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| 355 | }
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[1] | 356 | }
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| 357 |
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| 358 |
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| 359 |
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| 360 |
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| 361 |
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| 362 |
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[1645] | 363 | int read_EXAT_files_from_tape(long long *ptmp_size, char *tmp_fname,
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[128] | 364 | int *pctrl_chr, char *xattr_fname,
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| 365 | char *acl_fname)
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[1] | 366 | {
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[128] | 367 | int res = 0;
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[955] | 368 | char *fname = (char *)&res; /* Should NOT be NULL */
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[1940] | 369 | char *tmp = NULL;
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[128] | 370 |
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[1933] | 371 | // xattr
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[948] | 372 | if (g_getfattr) {
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[955] | 373 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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[948] | 374 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
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| 375 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
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| 376 | }
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[1940] | 377 | if (strstr(fname, "xattr") == NULL) {
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[2211] | 378 | mr_asprintf(&tmp,"Wrong order expected xattr, got %s, sunshine.", fname);
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[1940] | 379 | fatal_error(tmp);
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[948] | 380 | }
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[1645] | 381 | read_file_from_stream_to_file(xattr_fname, *ptmp_size);
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[1940] | 382 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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[948] | 383 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
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| 384 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
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| 385 | }
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| 386 | log_msg(1, "Got xattr");
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[1940] | 387 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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[1933] | 388 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
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| 389 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 390 | }
|
---|
[1940] | 391 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
[1943] | 392 | if (*pctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
[1933] | 393 | log_msg(1, "No acl attributes found, skipping to afio files");
|
---|
| 394 | return(0);
|
---|
| 395 | } else {
|
---|
[1943] | 396 | if (*pctrl_chr != BLK_START_EXTENDED_ATTRIBUTES) {
|
---|
[1933] | 397 | wrong_marker(BLK_START_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 398 | }
|
---|
| 399 | }
|
---|
[128] | 400 | }
|
---|
[1933] | 401 | // acl
|
---|
[948] | 402 | if (g_getfacl) {
|
---|
[955] | 403 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
[948] | 404 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
| 405 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
| 406 | }
|
---|
[1940] | 407 | if (strstr(fname, "acl") == NULL) {
|
---|
[2211] | 408 | mr_asprintf(&tmp,"Wrong order expected acl, got %s, sunshine.", fname);
|
---|
[1940] | 409 | fatal_error(tmp);
|
---|
| 410 | }
|
---|
[1645] | 411 | read_file_from_stream_to_file(acl_fname, *ptmp_size);
|
---|
[1940] | 412 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
[948] | 413 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
| 414 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
| 415 | }
|
---|
[1940] | 416 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
[948] | 417 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
| 418 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 419 | }
|
---|
| 420 | log_msg(1, "Got acl");
|
---|
[128] | 421 | }
|
---|
[1933] | 422 | // tarball itself
|
---|
[128] | 423 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
[1933] | 424 | log_msg(1, "End of extended attributes, now looking for afioball");
|
---|
| 425 | return (0);
|
---|
[1] | 426 | }
|
---|
| 427 |
|
---|
| 428 |
|
---|
[1645] | 429 | int write_EXAT_files_to_tape(char *xattr_fname,
|
---|
[128] | 430 | char *acl_fname)
|
---|
[1] | 431 | {
|
---|
[128] | 432 | int res = 0;
|
---|
[948] | 433 | if (g_getfattr) {
|
---|
[955] | 434 | // xattr
|
---|
[948] | 435 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 436 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
| 437 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 438 | BLK_START_EXAT_FILE);
|
---|
[1645] | 439 | write_file_to_stream_from_file(xattr_fname);
|
---|
[948] | 440 | write_header_block_to_stream((off_t)-1, xattr_fname, BLK_STOP_EXAT_FILE);
|
---|
[1933] | 441 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 442 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
[948] | 443 | }
|
---|
| 444 | if (g_getfacl) {
|
---|
[955] | 445 | // acl
|
---|
[948] | 446 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
[1933] | 447 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
| 448 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
[948] | 449 | BLK_START_EXAT_FILE);
|
---|
[1645] | 450 | write_file_to_stream_from_file(acl_fname);
|
---|
[948] | 451 | write_header_block_to_stream((off_t)-1, acl_fname, BLK_STOP_EXAT_FILE);
|
---|
[1933] | 452 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
[948] | 453 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
| 454 | }
|
---|
[128] | 455 | return (res);
|
---|
[1] | 456 | }
|
---|
| 457 |
|
---|
| 458 |
|
---|
| 459 |
|
---|
| 460 |
|
---|
| 461 | /**
|
---|
| 462 | * Tell the user to insert tape @p tapeno and wait for it to settle (5 seconds).
|
---|
| 463 | * @param tapeno The tape number to insist on.
|
---|
| 464 | * @bug There is currently no way to actually verify that the user has actually
|
---|
| 465 | * inserted the right tape.
|
---|
| 466 | */
|
---|
| 467 | void insist_on_this_tape_number(int tapeno)
|
---|
| 468 | {
|
---|
[128] | 469 | int i;
|
---|
[2520] | 470 | char *tmp = NULL;
|
---|
[1] | 471 |
|
---|
[128] | 472 | log_it("Insisting on tape #%d", tapeno);
|
---|
| 473 | if (g_current_media_number != tapeno) {
|
---|
[2520] | 474 | mr_asprintf(&tmp,
|
---|
[541] | 475 | "When the tape drive goes quiet, please insert volume %d in this series.",
|
---|
[128] | 476 | tapeno);
|
---|
| 477 | popup_and_OK(tmp);
|
---|
[2520] | 478 | mr_free(tmp);
|
---|
[541] | 479 | open_evalcall_form("Waiting while the tape drive settles");
|
---|
[128] | 480 | } else {
|
---|
[541] | 481 | open_evalcall_form("Waiting while the tape drive rewinds");
|
---|
[128] | 482 | }
|
---|
[1] | 483 |
|
---|
[128] | 484 | for (i = 0; i <= 100; i += 2) {
|
---|
| 485 | usleep(100000);
|
---|
| 486 | update_evalcall_form(i);
|
---|
| 487 | }
|
---|
| 488 | close_evalcall_form();
|
---|
| 489 | log_it("I assume user has inserted it. They _say_ they have...");
|
---|
| 490 | g_current_media_number = tapeno;
|
---|
[1] | 491 |
|
---|
[128] | 492 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
| 493 | log_it("OK, I've finished insisting. On with the revelry.");
|
---|
[1] | 494 | }
|
---|
| 495 |
|
---|
| 496 |
|
---|
| 497 |
|
---|
| 498 |
|
---|
| 499 | /**
|
---|
| 500 | * Debugging aid - log the offset we're at on the tape (reading or writing).
|
---|
| 501 | */
|
---|
[128] | 502 | void log_tape_pos(void)
|
---|
[1] | 503 | {
|
---|
[128] | 504 | /*@ buffers ***************************************************** */
|
---|
[1] | 505 |
|
---|
| 506 |
|
---|
[128] | 507 | /*@ end vars *************************************************** */
|
---|
[1] | 508 |
|
---|
[128] | 509 | log_it("Tape position -- %ld KB (%ld MB)", (long) g_tape_posK,
|
---|
| 510 | (long) g_tape_posK >> 10);
|
---|
[1] | 511 | }
|
---|
| 512 |
|
---|
| 513 |
|
---|
| 514 |
|
---|
| 515 |
|
---|
| 516 | /**
|
---|
| 517 | * Add a file to a collection of recently archived filesets/slices.
|
---|
| 518 | * The type is determined by the filename: if it contains ".afio." it is
|
---|
| 519 | * assumed to be a fileset, otherwise if it contains "slice" it's a slice,
|
---|
| 520 | * otherwise we generate a fatal_error().
|
---|
| 521 | * @param td The current @c bkpinfo->tempdir (file will be placed in <tt>td</tt>/tmpfs/backcatalog/).
|
---|
| 522 | * @param latest_fname The file to place in the collection.
|
---|
| 523 | * @return 0, always.
|
---|
| 524 | * @bug Return value is redundant.
|
---|
| 525 | * @bug The detection won't work for uncompressed afioballs (they end in ".afio", no dot afterwards). // Not true. They end in '.' -Hugo
|
---|
| 526 | */
|
---|
| 527 | int maintain_collection_of_recent_archives(char *td, char *latest_fname)
|
---|
| 528 | {
|
---|
[128] | 529 | long long final_alleged_writeK, final_projected_certain_writeK,
|
---|
| 530 | final_actually_certain_writeK = 0, cposK, bufsize_K;
|
---|
| 531 | int last, curr, i;
|
---|
| 532 | t_archtype type = other;
|
---|
[2520] | 533 | char *command = NULL;
|
---|
| 534 | char *tmpdir = NULL;
|
---|
| 535 | char *old_fname = NULL;
|
---|
[128] | 536 | char *p;
|
---|
| 537 | char suffix[16];
|
---|
[1] | 538 |
|
---|
[128] | 539 | bufsize_K = (long long) (1024LL * (1 + g_tape_buffer_size_MB));
|
---|
| 540 | if ((p = strrchr(latest_fname, '.'))) {
|
---|
| 541 | strcpy(suffix, ++p);
|
---|
| 542 | } else {
|
---|
| 543 | suffix[0] = '\0';
|
---|
[1] | 544 | }
|
---|
[128] | 545 | if (strstr(latest_fname, ".afio.") || strstr(latest_fname, ".star.")) {
|
---|
| 546 | type = fileset;
|
---|
| 547 | } else if (strstr(latest_fname, "slice")) {
|
---|
| 548 | type = biggieslice;
|
---|
| 549 | } else {
|
---|
| 550 | log_it("fname = %s", latest_fname);
|
---|
| 551 | fatal_error
|
---|
| 552 | ("Unknown type. Internal error in maintain_collection_of_recent_archives()");
|
---|
| 553 | }
|
---|
[2520] | 554 | mr_asprintf(&tmpdir, "%s/tmpfs/backcatalog", td);
|
---|
[128] | 555 | mkdir(tmpdir, 0x700);
|
---|
[2520] | 556 | mr_asprintf(&command, "cp -f %s %s", latest_fname, tmpdir);
|
---|
[128] | 557 | if (run_program_and_log_output(command, 6)) {
|
---|
| 558 | log_it("Warning - failed to copy %s to backcatalog at %s",
|
---|
| 559 | latest_fname, tmpdir);
|
---|
| 560 | }
|
---|
[2520] | 561 | mr_free(command);
|
---|
| 562 |
|
---|
[128] | 563 | last = g_tapecatalog->entries - 1;
|
---|
| 564 | if (last <= 0) {
|
---|
[2230] | 565 | log_it("Too early to start deleting from collection.");
|
---|
[2520] | 566 | mr_free(tmpdir);
|
---|
[128] | 567 | return (0);
|
---|
| 568 | }
|
---|
| 569 | final_alleged_writeK = g_tapecatalog->el[last].tape_posK;
|
---|
| 570 | final_projected_certain_writeK = final_alleged_writeK - bufsize_K;
|
---|
| 571 | for (curr = last; curr >= 0; curr--) {
|
---|
| 572 | cposK = g_tapecatalog->el[curr].tape_posK;
|
---|
| 573 | if (cposK < final_projected_certain_writeK) {
|
---|
| 574 | final_actually_certain_writeK = cposK;
|
---|
| 575 | break;
|
---|
| 576 | }
|
---|
| 577 | }
|
---|
| 578 | if (curr < 0) {
|
---|
[2230] | 579 | log_it("Not far enough into tape to start deleting old archives from collection.");
|
---|
[2520] | 580 | mr_free(tmpdir);
|
---|
[128] | 581 | return (0);
|
---|
| 582 | }
|
---|
[1] | 583 |
|
---|
[128] | 584 | for (i = curr - 1; i >= 0 && curr - i < 10; i--) {
|
---|
[2520] | 585 | mr_asprintf(&old_fname, "%s/%s", tmpdir, g_tapecatalog->el[i].fname);
|
---|
[128] | 586 | unlink(old_fname);
|
---|
[2520] | 587 | mr_free(old_fname);
|
---|
[128] | 588 | }
|
---|
[2520] | 589 | mr_free(tmpdir);
|
---|
[128] | 590 | return (0);
|
---|
[1] | 591 | }
|
---|
| 592 |
|
---|
| 593 |
|
---|
| 594 |
|
---|
| 595 |
|
---|
| 596 | /**
|
---|
| 597 | * Open the CD stream for input.
|
---|
| 598 | * @param bkpinfo The backup information structure. Passed to openin_tape().
|
---|
| 599 | * @return 0 for success, nonzero for failure.
|
---|
| 600 | * @note Equivalent to openin_tape() for now, but don't count on this behavior.
|
---|
| 601 | */
|
---|
[1645] | 602 | int openin_cdstream()
|
---|
[1] | 603 | {
|
---|
[1645] | 604 | return (openin_tape());
|
---|
[1] | 605 | }
|
---|
| 606 |
|
---|
| 607 | /**
|
---|
| 608 | * FIFO used to read/write to the tape device.
|
---|
| 609 | * @bug This seems obsolete now that we call an external @c buffer program. Please look onto this.
|
---|
| 610 | */
|
---|
| 611 | char g_tape_fifo[MAX_STR_LEN];
|
---|
| 612 |
|
---|
| 613 |
|
---|
| 614 |
|
---|
[1954] | 615 | int set_tape_block_size_with_mt(long internal_tape_block_size)
|
---|
[1] | 616 | {
|
---|
[2520] | 617 | char *tmp = NULL;
|
---|
[128] | 618 | int res;
|
---|
[1] | 619 |
|
---|
[1954] | 620 | if (strncmp(bkpinfo->media_device, "/dev/", 5)) {
|
---|
[128] | 621 | log_msg(1,
|
---|
| 622 | "Not using 'mt setblk'. This isn't an actual /dev entry.");
|
---|
| 623 | return (0);
|
---|
| 624 | }
|
---|
[2520] | 625 | mr_asprintf(&tmp, "mt -f %s setblk %ld", bkpinfo->media_device, internal_tape_block_size);
|
---|
[128] | 626 | res = run_program_and_log_output(tmp, 3);
|
---|
[2520] | 627 | mr_free(tmp);
|
---|
[128] | 628 | return (res);
|
---|
[1] | 629 | }
|
---|
| 630 |
|
---|
[1951] | 631 | /**
|
---|
| 632 | * Return the non-rewinding device when passed the normal one
|
---|
| 633 | * @param tapedev The tape device to open for writing.
|
---|
| 634 | * @note the caller needs to free the string returned
|
---|
| 635 | */
|
---|
| 636 | char *get_non_rewind_dev(char *tapedev)
|
---|
| 637 | {
|
---|
[1] | 638 |
|
---|
[1951] | 639 | char *ntapedev = NULL;
|
---|
| 640 | char *p = NULL;
|
---|
| 641 | char *q = NULL;
|
---|
| 642 | char *r = NULL;
|
---|
| 643 |
|
---|
| 644 | ntapedev = (char *)malloc(strlen(tapedev)+sizeof(char));
|
---|
| 645 | p = strrchr(tapedev,'/');
|
---|
| 646 | if (p == NULL) {
|
---|
| 647 | log_it("Didn't find a '/' in %s",tapedev);
|
---|
| 648 | return(NULL);
|
---|
| 649 | }
|
---|
| 650 |
|
---|
| 651 | /* Copy tapedev content up to the last / */
|
---|
| 652 | q = tapedev;
|
---|
| 653 | r = ntapedev;
|
---|
| 654 | while (q != p) {
|
---|
| 655 | *r = *q;
|
---|
| 656 | r++;
|
---|
| 657 | q++;
|
---|
| 658 | }
|
---|
| 659 | /* Copy the '/' */
|
---|
| 660 | *r = *q;
|
---|
| 661 | r++;
|
---|
| 662 | q++;
|
---|
| 663 | /* Adds a 'n' - non-rewinding */
|
---|
| 664 | *r = 'n';
|
---|
| 665 | r++;
|
---|
| 666 | /* Copy the rest of tapedev */
|
---|
| 667 | while (*q != '\0') {
|
---|
| 668 | *r = *q;
|
---|
| 669 | r++;
|
---|
| 670 | q++;
|
---|
| 671 | }
|
---|
| 672 | *r = '\0';
|
---|
| 673 | if (mt_says_tape_exists(ntapedev)) {
|
---|
| 674 | log_it("Non-rewinding tape device is %s",ntapedev);
|
---|
| 675 | } else {
|
---|
| 676 | log_it("Unable to find non-rewinding tape device.");
|
---|
| 677 | ntapedev = NULL;
|
---|
| 678 | }
|
---|
| 679 | return(ntapedev);
|
---|
| 680 | }
|
---|
| 681 |
|
---|
| 682 |
|
---|
| 683 |
|
---|
[1949] | 684 | /**
|
---|
| 685 | * Handle OBDR if we were asked to do so
|
---|
[1954] | 686 | * @param tapedev The tape device to open for reading.
|
---|
[1949] | 687 | */
|
---|
[1968] | 688 | int skip_obdr(void)
|
---|
[1949] | 689 | {
|
---|
| 690 | char *command = NULL;
|
---|
[1955] | 691 | int res = 0;
|
---|
[1] | 692 |
|
---|
[1955] | 693 | log_it("Skipping OBDR headers");
|
---|
[2211] | 694 | mr_asprintf(&command, "mt -f %s rewind",bkpinfo->media_device);
|
---|
[1962] | 695 | res = run_program_and_log_output(command, 1);
|
---|
| 696 | paranoid_free(command);
|
---|
| 697 |
|
---|
[2211] | 698 | mr_asprintf(&command, "mt -f %s fsf 2",bkpinfo->media_device);
|
---|
[1955] | 699 | res = run_program_and_log_output(command, 1);
|
---|
[1949] | 700 | paranoid_free(command);
|
---|
| 701 |
|
---|
[1954] | 702 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
[1955] | 703 | return(res);
|
---|
[1949] | 704 | }
|
---|
| 705 |
|
---|
[1954] | 706 | /**
|
---|
| 707 | * Handle OBDR if we were asked to do so
|
---|
| 708 | * @param tapedev The tape device to open for writing.
|
---|
| 709 | * @return 0 for success, nonzero for failure.
|
---|
| 710 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
| 711 | * EXISTING DATA on the tape!
|
---|
| 712 | */
|
---|
[1968] | 713 | int create_obdr(void)
|
---|
[1949] | 714 | {
|
---|
| 715 |
|
---|
| 716 | char *command = NULL;
|
---|
| 717 | int res = 0;
|
---|
| 718 |
|
---|
[1955] | 719 | log_it("Creating OBDR headers");
|
---|
[1949] | 720 | /* OBDR: First block 10 kB of zero bs = 512 */
|
---|
[2211] | 721 | mr_asprintf(&command, "mt -f %s compression off",bkpinfo->media_device);
|
---|
[1949] | 722 | res = run_program_and_log_output(command, 1);
|
---|
| 723 | paranoid_free(command);
|
---|
| 724 |
|
---|
[2211] | 725 | mr_asprintf(&command, "mt -f %s rewind",bkpinfo->media_device);
|
---|
[1955] | 726 | res += run_program_and_log_output(command, 1);
|
---|
[1949] | 727 | paranoid_free(command);
|
---|
| 728 |
|
---|
[1954] | 729 | set_tape_block_size_with_mt(512);
|
---|
[1949] | 730 |
|
---|
[2211] | 731 | mr_asprintf(&command, "dd if=/dev/zero of=%s bs=512 count=20",bkpinfo->media_device);
|
---|
[1955] | 732 | res += run_program_and_log_output(command, 1);
|
---|
[1949] | 733 | paranoid_free(command);
|
---|
| 734 |
|
---|
| 735 | /* OBDR: then ISO boot image bs = 2048 */
|
---|
[1954] | 736 | set_tape_block_size_with_mt(2048);
|
---|
[1949] | 737 |
|
---|
[2211] | 738 | mr_asprintf(&command, "dd if=%s of=%s bs=2048",MINDI_CACHE"/mondorescue.iso",bkpinfo->media_device);
|
---|
[1955] | 739 | res += run_program_and_log_output(command, 1);
|
---|
[1949] | 740 | paranoid_free(command);
|
---|
| 741 |
|
---|
[1954] | 742 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
[2900] | 743 |
|
---|
| 744 | /* restore compression mode on */
|
---|
| 745 | mr_asprintf(&command, "mt -f %s compression on",bkpinfo->media_device);
|
---|
| 746 | res = run_program_and_log_output(command, 1);
|
---|
| 747 | paranoid_free(command);
|
---|
| 748 |
|
---|
[1955] | 749 | return(res);
|
---|
[1949] | 750 | }
|
---|
| 751 |
|
---|
| 752 |
|
---|
[1] | 753 | /**
|
---|
| 754 | * Open the tape device for input.
|
---|
| 755 | * @param bkpinfo The backup information structure. Fields used:
|
---|
| 756 | * - @c bkpinfo->media_device
|
---|
| 757 | * - @c bkpinfo->tmpdir
|
---|
| 758 | * @return 0 for success, nonzero for failure.
|
---|
| 759 | * @note This will also work with a cdstream for now, but don't count on this behavior.
|
---|
| 760 | */
|
---|
[1645] | 761 | int openin_tape()
|
---|
[1] | 762 | {
|
---|
[128] | 763 | /*@ buffer ***************************************************** */
|
---|
| 764 | char fname[MAX_STR_LEN];
|
---|
| 765 | char *datablock;
|
---|
[2520] | 766 | char *tmp = NULL;
|
---|
[128] | 767 | char old_cwd[MAX_STR_LEN];
|
---|
[2520] | 768 | char *outfname = NULL;
|
---|
[128] | 769 | /*@ int ******************************************************* */
|
---|
| 770 | int i;
|
---|
| 771 | int j;
|
---|
[1955] | 772 | int res = 0;
|
---|
[128] | 773 | long length, templong;
|
---|
| 774 | size_t k;
|
---|
| 775 | int retval = 0;
|
---|
| 776 | int ctrl_chr;
|
---|
[1] | 777 |
|
---|
[128] | 778 | /*@ long long ************************************************* */
|
---|
| 779 | long long size;
|
---|
[1] | 780 |
|
---|
[128] | 781 | /*@ pointers ************************************************** */
|
---|
| 782 | FILE *fout;
|
---|
[1] | 783 |
|
---|
[128] | 784 | /*@ end vars *************************************************** */
|
---|
[1] | 785 |
|
---|
[128] | 786 | assert_string_is_neither_NULL_nor_zerolength(bkpinfo->media_device);
|
---|
| 787 | if (!(g_tapecatalog = malloc(sizeof(struct s_tapecatalog)))) {
|
---|
| 788 | fatal_error("Cannot alloc mem for tape catalog");
|
---|
| 789 | }
|
---|
| 790 | g_tapecatalog->entries = 0;
|
---|
| 791 | g_tape_posK = 0;
|
---|
| 792 | if (g_tape_stream) {
|
---|
| 793 | log_it("FYI - I won't 'openin' the tape. It's already open.");
|
---|
| 794 | return (0);
|
---|
| 795 | }
|
---|
[1969] | 796 |
|
---|
| 797 | // mondoarchive should have configured everything to give the right non-rew device
|
---|
| 798 | if ((bkpinfo->use_obdr) && (bkpinfo->media_device != NULL)) {
|
---|
[1955] | 799 | res = skip_obdr();
|
---|
| 800 | if (res != 0) {
|
---|
| 801 | log_it("Not able to skip OBDR - Restore will have to be done manually");
|
---|
| 802 | }
|
---|
[1952] | 803 | } else {
|
---|
[1969] | 804 | if (bkpinfo->media_device == NULL) {
|
---|
[1954] | 805 | log_it("Not able to skip OBDR - Restore will have to be done manually");
|
---|
| 806 | }
|
---|
| 807 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
[1948] | 808 | }
|
---|
| 809 |
|
---|
[128] | 810 | insist_on_this_tape_number(1);
|
---|
[2520] | 811 | mr_asprintf(&outfname, "%s/tmp/all.tar.gz", bkpinfo->tmpdir);
|
---|
[128] | 812 | make_hole_for_file(outfname);
|
---|
[1] | 813 |
|
---|
| 814 | // start_buffer_process( bkpinfo->media_device, g_tape_fifo, FALSE);
|
---|
[128] | 815 | log_it("Opening IN tape");
|
---|
| 816 | if (!
|
---|
| 817 | (g_tape_stream =
|
---|
| 818 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 819 | bkpinfo->internal_tape_block_size))) {
|
---|
| 820 | log_OS_error(g_tape_fifo);
|
---|
[541] | 821 | log_to_screen("Cannot openin stream device");
|
---|
[2520] | 822 | mr_free(outfname);
|
---|
[128] | 823 | return (1);
|
---|
| 824 | }
|
---|
[541] | 825 | log_to_screen("Reading stream");
|
---|
[128] | 826 | log_it("stream device = '%s'", bkpinfo->media_device);
|
---|
[1] | 827 | /* skip data disks */
|
---|
[128] | 828 | open_evalcall_form("Skipping data disks on stream");
|
---|
[541] | 829 | log_to_screen("Skipping data disks on stream");
|
---|
[128] | 830 | if (!(fout = fopen(outfname, "w"))) {
|
---|
| 831 | log_OS_error(outfname);
|
---|
[541] | 832 | log_to_screen("Cannot openout datadisk all.tar.gz file");
|
---|
[2520] | 833 | mr_free(outfname);
|
---|
[128] | 834 | return (-1);
|
---|
[1] | 835 | }
|
---|
[128] | 836 | if (!(datablock = (char *) malloc(256 * 1024))) {
|
---|
[541] | 837 | log_to_screen("Unable to malloc 256*1024");
|
---|
[2520] | 838 | mr_free(outfname);
|
---|
[2240] | 839 | finish(1);
|
---|
[128] | 840 | }
|
---|
| 841 | for (i = 0; i < 32; i++) {
|
---|
| 842 | for (j = 0; j < 4; j++) {
|
---|
| 843 | for (length = 0, k = 0; length < 256 * 1024; length += k) {
|
---|
| 844 | k = fread(datablock + length, 1, 256 * 1024 - length,
|
---|
| 845 | g_tape_stream);
|
---|
| 846 | }
|
---|
| 847 | (void) fwrite(datablock, 1, (size_t) length, fout);
|
---|
| 848 | g_tape_posK += length / 1024;
|
---|
| 849 | }
|
---|
| 850 | if (i > 8) // otherwise, 'buffer' distorts calculations
|
---|
| 851 | {
|
---|
| 852 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 853 | update_evalcall_form((int) (templong));
|
---|
| 854 | }
|
---|
| 855 | }
|
---|
| 856 | paranoid_fclose(fout);
|
---|
| 857 | paranoid_free(datablock);
|
---|
[2520] | 858 |
|
---|
[1] | 859 | /* find initial blocks */
|
---|
[128] | 860 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
| 861 | retval += res;
|
---|
| 862 | if (ctrl_chr != BLK_START_OF_TAPE) {
|
---|
| 863 | wrong_marker(BLK_START_OF_TAPE, ctrl_chr);
|
---|
| 864 | }
|
---|
| 865 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
| 866 | retval += res;
|
---|
| 867 | if (ctrl_chr != BLK_START_OF_BACKUP) {
|
---|
| 868 | wrong_marker(BLK_START_OF_BACKUP, ctrl_chr);
|
---|
| 869 | }
|
---|
| 870 | close_evalcall_form();
|
---|
| 871 | log_it("Saved all.tar.gz to '%s'", outfname);
|
---|
| 872 | (void) getcwd(old_cwd, MAX_STR_LEN);
|
---|
| 873 | chdir(bkpinfo->tmpdir);
|
---|
[2520] | 874 | mr_asprintf(&tmp, "tar -zxf %s ./tmp/mondo-restore.cfg 2> /dev/null",
|
---|
[128] | 875 | outfname);
|
---|
| 876 | paranoid_system(tmp);
|
---|
[2520] | 877 | mr_free(tmp);
|
---|
| 878 |
|
---|
[128] | 879 | paranoid_system("cp -f tmp/mondo-restore.cfg . 2> /dev/null");
|
---|
| 880 | chdir(old_cwd);
|
---|
| 881 | unlink(outfname);
|
---|
[2520] | 882 | mr_free(outfname);
|
---|
[128] | 883 | return (retval);
|
---|
[1] | 884 | }
|
---|
| 885 |
|
---|
| 886 |
|
---|
| 887 | /**
|
---|
| 888 | * Start writing to a CD stream.
|
---|
| 889 | * @param cddev The CD device to openout via cdrecord.
|
---|
| 890 | * @param speed The speed to write at.
|
---|
| 891 | * @return 0 for success, nonzero for failure.
|
---|
| 892 | * @note This should be called only from backup processes.
|
---|
| 893 | */
|
---|
[128] | 894 | int openout_cdstream(char *cddev, int speed)
|
---|
[1] | 895 | {
|
---|
[128] | 896 | /*@ buffers ***************************************************** */
|
---|
[2520] | 897 | char *command = NULL;
|
---|
[1] | 898 |
|
---|
[128] | 899 | /*@ end vars *************************************************** */
|
---|
[1] | 900 |
|
---|
[2520] | 901 | /* add 'dummy' if testing */
|
---|
| 902 | mr_asprintf(&command, "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s", cddev, speed, MONDO_LOGFILE, MONDO_LOGFILE);
|
---|
| 903 | /* initialise the catalog */
|
---|
[128] | 904 | g_current_media_number = 1;
|
---|
| 905 | if (!(g_tapecatalog = malloc(sizeof(struct s_tapecatalog)))) {
|
---|
| 906 | fatal_error("Cannot alloc mem for tape catalog");
|
---|
| 907 | }
|
---|
| 908 | g_tapecatalog->entries = 0;
|
---|
[2520] | 909 | /* log stuff */
|
---|
[128] | 910 | log_it("Opening OUT cdstream with the command");
|
---|
| 911 | log_it(command);
|
---|
[2520] | 912 | /* log_it("Let's see what happens, shall we?"); */
|
---|
[128] | 913 | g_tape_stream = popen(command, "w");
|
---|
[2520] | 914 | mr_free(command);
|
---|
| 915 |
|
---|
[128] | 916 | if (g_tape_stream) {
|
---|
| 917 | return (0);
|
---|
| 918 | } else {
|
---|
[541] | 919 | log_to_screen("Failed to openout to cdstream (fifo)");
|
---|
[128] | 920 | return (1);
|
---|
| 921 | }
|
---|
[1] | 922 | }
|
---|
| 923 |
|
---|
[2520] | 924 |
|
---|
[1] | 925 | /**
|
---|
| 926 | * Start writing to a tape device for the backup.
|
---|
[1948] | 927 | * Handle OBDR if we were asked to do so
|
---|
[1] | 928 | * @param tapedev The tape device to open for writing.
|
---|
| 929 | * @return 0 for success, nonzero for failure.
|
---|
| 930 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
| 931 | * EXISTING DATA on the tape!
|
---|
| 932 | */
|
---|
[1954] | 933 | int openout_tape() {
|
---|
[1] | 934 |
|
---|
[1954] | 935 | g_current_media_number = 1;
|
---|
| 936 | if (g_tape_stream) {
|
---|
| 937 | log_it("FYI - I won't 'openout' the tape. It's already open.");
|
---|
[128] | 938 | return (0);
|
---|
[1] | 939 | }
|
---|
[1954] | 940 | if (!(g_tapecatalog = malloc(sizeof(struct s_tapecatalog)))) {
|
---|
| 941 | fatal_error("Cannot alloc mem for tape catalog");
|
---|
| 942 | }
|
---|
| 943 | g_tapecatalog->entries = 0;
|
---|
| 944 | g_tape_posK = 0;
|
---|
[1] | 945 |
|
---|
[1956] | 946 | if (bkpinfo->use_obdr) {
|
---|
[1954] | 947 | create_obdr();
|
---|
| 948 | } else {
|
---|
| 949 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
| 950 | }
|
---|
| 951 | log_it("Opening OUT tape");
|
---|
| 952 | if (!
|
---|
| 953 | (g_tape_stream =
|
---|
[1955] | 954 | open_device_via_buffer(bkpinfo->media_device, 'w', bkpinfo->internal_tape_block_size))) {
|
---|
[1954] | 955 | log_OS_error(g_tape_fifo);
|
---|
| 956 | log_to_screen("Cannot openin stream device");
|
---|
| 957 | return (1);
|
---|
| 958 | }
|
---|
| 959 | return (0);
|
---|
| 960 | }
|
---|
[1] | 961 |
|
---|
| 962 |
|
---|
| 963 |
|
---|
[1954] | 964 |
|
---|
[1] | 965 | /**
|
---|
| 966 | * Copy a file from the opened stream (CD or tape) to @p outfile.
|
---|
| 967 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 968 | * @param outfile The file to write to.
|
---|
| 969 | * @param size The size of the file in the input stream.
|
---|
| 970 | * @return 0 for success, nonzero for failure.
|
---|
| 971 | */
|
---|
| 972 | int
|
---|
[1645] | 973 | read_file_from_stream_to_file(char *outfile, long long size)
|
---|
[1] | 974 | {
|
---|
| 975 |
|
---|
[128] | 976 | /*@ int ******************************************************** */
|
---|
| 977 | int res;
|
---|
[1] | 978 |
|
---|
[128] | 979 | /*@ end vars *************************************************** */
|
---|
[1] | 980 |
|
---|
[1645] | 981 | res = read_file_from_stream_FULL(outfile, NULL, size);
|
---|
[1] | 982 |
|
---|
[128] | 983 | return (res);
|
---|
[1] | 984 | }
|
---|
| 985 |
|
---|
| 986 |
|
---|
| 987 |
|
---|
| 988 | /**
|
---|
| 989 | * Copy a file from the currently opened stream (CD or tape) to the stream indicated
|
---|
| 990 | * by @p fout.
|
---|
| 991 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 992 | * @param fout The stream to write the file to.
|
---|
| 993 | * @param size The size of the file in bytes.
|
---|
| 994 | * @return 0 for success, nonzero for failure.
|
---|
| 995 | */
|
---|
| 996 | int
|
---|
[1645] | 997 | read_file_from_stream_to_stream(FILE * fout, long long size)
|
---|
[1] | 998 | {
|
---|
| 999 |
|
---|
[128] | 1000 | /*@ int ******************************************************** */
|
---|
| 1001 | int res;
|
---|
[1] | 1002 |
|
---|
[128] | 1003 | /*@ end vars *************************************************** */
|
---|
[1] | 1004 |
|
---|
[1645] | 1005 | res = read_file_from_stream_FULL(NULL, fout, size);
|
---|
[1] | 1006 | /* fflush(g_tape_stream);
|
---|
| 1007 | fflush(fout);*/
|
---|
[128] | 1008 | return (res);
|
---|
[1] | 1009 | }
|
---|
| 1010 |
|
---|
| 1011 |
|
---|
| 1012 |
|
---|
| 1013 | /**
|
---|
| 1014 | * Copy a file from the currently opened stream (CD or tape) to either a
|
---|
| 1015 | * @c FILE pointer indicating a currently-opened file, or a filename indicating
|
---|
| 1016 | * a new file to create. This is the backbone function that read_file_from_stream_to_file()
|
---|
| 1017 | * and read_file_from_stream_to_stream() are wrappers for.
|
---|
| 1018 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 1019 | * @param outfname If non-NULL, write to this file.
|
---|
| 1020 | * @param foutstream If non-NULL, write to this stream.
|
---|
| 1021 | * @param orig_size The original length of the file in bytes.
|
---|
| 1022 | * @return 0 for success, nonzero for failure.
|
---|
| 1023 | * @note Only @b one of @p outfname or @p foutstream may be non-NULL.
|
---|
| 1024 | */
|
---|
| 1025 | int
|
---|
[1645] | 1026 | read_file_from_stream_FULL(char *outfname, FILE * foutstream, long long orig_size)
|
---|
[1] | 1027 | {
|
---|
[128] | 1028 | /*@ buffers ***************************************************** */
|
---|
[2520] | 1029 | char *tmp = NULL;
|
---|
[128] | 1030 | char *datablock;
|
---|
| 1031 | char *temp_fname;
|
---|
| 1032 | char *temp_cksum;
|
---|
[2520] | 1033 | char *actual_cksum = NULL;
|
---|
[1] | 1034 | // char *pA, *pB;
|
---|
| 1035 |
|
---|
[128] | 1036 | /*@ int ********************************************************* */
|
---|
| 1037 | int retval = 0;
|
---|
[1] | 1038 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1039 | int i, ch;
|
---|
[1] | 1040 | #endif
|
---|
[128] | 1041 | int noof_blocks;
|
---|
| 1042 | int ctrl_chr;
|
---|
| 1043 | int res;
|
---|
| 1044 | /*@ pointers **************************************************** */
|
---|
| 1045 | FILE *fout;
|
---|
[1] | 1046 |
|
---|
[128] | 1047 | /*@ long ***************************************************** */
|
---|
[1899] | 1048 | long bytes_to_write = 0L /*,i */ ;
|
---|
[1] | 1049 | // long bytes_successfully_read_in_this_time = 0;
|
---|
| 1050 |
|
---|
[128] | 1051 | /*@ long long *************************************************** */
|
---|
| 1052 | long long temp_size, size;
|
---|
| 1053 | long bytes_read, bytes_to_read;
|
---|
| 1054 | long long total_read_from_tape_for_this_file = 0;
|
---|
| 1055 | long long where_I_was_before_tape_change = 0;
|
---|
| 1056 | /*@ unsigned int ************************************************ */
|
---|
| 1057 | /* unsigned int ch; */
|
---|
| 1058 | unsigned int crc16;
|
---|
| 1059 | unsigned int crctt;
|
---|
[1] | 1060 |
|
---|
[128] | 1061 | bool had_to_resync = FALSE;
|
---|
[1] | 1062 |
|
---|
[128] | 1063 | /*@ init ******************************************************* */
|
---|
| 1064 | malloc_string(temp_fname);
|
---|
| 1065 | malloc_string(temp_cksum);
|
---|
| 1066 | datablock = malloc(TAPE_BLOCK_SIZE);
|
---|
| 1067 | crc16 = 0;
|
---|
| 1068 | crctt = 0;
|
---|
| 1069 | size = orig_size;
|
---|
[1] | 1070 |
|
---|
[128] | 1071 | /*@ end vars *************************************************** */
|
---|
[1] | 1072 |
|
---|
[128] | 1073 | res = read_header_block_from_stream(&temp_size, temp_fname, &ctrl_chr);
|
---|
| 1074 | if (orig_size != temp_size && orig_size != -1) {
|
---|
[2520] | 1075 | mr_asprintf(&tmp, "output file's size should be %ld K but is apparently %ld K", (long) size >> 10, (long) temp_size >> 10);
|
---|
[128] | 1076 | log_to_screen(tmp);
|
---|
[2520] | 1077 | mr_free(tmp);
|
---|
[128] | 1078 | }
|
---|
| 1079 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 1080 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1081 | return (1);
|
---|
| 1082 | }
|
---|
[1] | 1083 |
|
---|
[128] | 1084 | if (foutstream) {
|
---|
| 1085 | fout = foutstream;
|
---|
| 1086 | } else {
|
---|
| 1087 | fout = fopen(outfname, "w");
|
---|
[1] | 1088 | }
|
---|
[128] | 1089 | if (!fout) {
|
---|
| 1090 | log_OS_error(outfname);
|
---|
[541] | 1091 | log_to_screen("Cannot openout file");
|
---|
[128] | 1092 | return (1);
|
---|
| 1093 | }
|
---|
| 1094 | total_read_from_tape_for_this_file = 0;
|
---|
| 1095 | for (noof_blocks = 0; size > 0;
|
---|
| 1096 | noof_blocks++, size -=
|
---|
| 1097 | bytes_to_write, total_read_from_tape_for_this_file +=
|
---|
| 1098 | bytes_read) {
|
---|
| 1099 | bytes_to_write =
|
---|
| 1100 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
| 1101 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
| 1102 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 1103 | while (bytes_read < bytes_to_read) { // next tape!
|
---|
| 1104 | // crctt=crc16=0;
|
---|
| 1105 | where_I_was_before_tape_change = size;
|
---|
| 1106 | log_msg(4, "where_I_was_... = %lld",
|
---|
| 1107 | where_I_was_before_tape_change);
|
---|
[1645] | 1108 | start_to_read_from_next_tape();
|
---|
[128] | 1109 | log_msg(4, "Started reading from next tape.");
|
---|
| 1110 | skip_incoming_files_until_we_find_this_one(temp_fname);
|
---|
| 1111 | log_msg(4, "Skipped irrelevant files OK.");
|
---|
| 1112 | for (size = orig_size; size > where_I_was_before_tape_change;
|
---|
| 1113 | size -= bytes_to_write) {
|
---|
| 1114 | bytes_read =
|
---|
| 1115 | fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 1116 | }
|
---|
| 1117 | log_msg(4, "'size' is now %lld (should be %lld)", size,
|
---|
| 1118 | where_I_was_before_tape_change);
|
---|
| 1119 | log_to_screen("Successfully re-sync'd tape");
|
---|
| 1120 | had_to_resync = TRUE;
|
---|
| 1121 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 1122 | }
|
---|
[1] | 1123 |
|
---|
[128] | 1124 | (void) fwrite(datablock, 1, (size_t) bytes_to_write, fout); // for blocking reasons, bytes_successfully_read_in isn't necessarily the same as bytes_to_write
|
---|
[1] | 1125 |
|
---|
| 1126 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1127 | for (i = 0; i < (int) bytes_to_write; i++) {
|
---|
| 1128 | ch = datablock[i];
|
---|
| 1129 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 1130 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 1131 | }
|
---|
[1] | 1132 | #endif
|
---|
[128] | 1133 | }
|
---|
| 1134 | log_msg(6, "Total read from tape for this file = %lld",
|
---|
| 1135 | total_read_from_tape_for_this_file);
|
---|
| 1136 | log_msg(6, ".......................... Should be %lld", orig_size);
|
---|
| 1137 | g_tape_posK += total_read_from_tape_for_this_file / 1024;
|
---|
[2520] | 1138 | mr_asprintf(&actual_cksum, "%04x%04x", crc16, crctt);
|
---|
[128] | 1139 | if (foutstream) { /*log_it("Finished writing to foutstream"); */
|
---|
| 1140 | } else {
|
---|
| 1141 | paranoid_fclose(fout);
|
---|
| 1142 | }
|
---|
| 1143 | res = read_header_block_from_stream(&temp_size, temp_cksum, &ctrl_chr);
|
---|
| 1144 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 1145 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
| 1146 | }
|
---|
| 1147 | if (strcmp(temp_cksum, actual_cksum)) {
|
---|
[2520] | 1148 | mr_asprintf(&tmp, "actual cksum=%s; recorded cksum=%s", actual_cksum,
|
---|
[128] | 1149 | temp_cksum);
|
---|
| 1150 | log_to_screen(tmp);
|
---|
[2520] | 1151 | mr_free(tmp);
|
---|
| 1152 |
|
---|
| 1153 | mr_asprintf(&tmp, "%s (%ld K) is corrupt on tape", temp_fname,
|
---|
[128] | 1154 | (long) orig_size >> 10);
|
---|
| 1155 | log_to_screen(tmp);
|
---|
[2520] | 1156 | mr_free(tmp);
|
---|
| 1157 |
|
---|
[128] | 1158 | retval++;
|
---|
| 1159 | }
|
---|
[2520] | 1160 | mr_free(actual_cksum);
|
---|
| 1161 |
|
---|
[128] | 1162 | paranoid_free(datablock);
|
---|
| 1163 | paranoid_free(temp_fname);
|
---|
| 1164 | paranoid_free(temp_cksum);
|
---|
| 1165 | return (retval);
|
---|
[1] | 1166 | }
|
---|
| 1167 |
|
---|
| 1168 |
|
---|
| 1169 |
|
---|
| 1170 | /**
|
---|
| 1171 | * Read a header block from the currently opened stream (CD or tape).
|
---|
| 1172 | * This block indicates the length of the following file (if it's file-related)
|
---|
| 1173 | * the filename (if it's file-related), and the block type.
|
---|
| 1174 | * @param plen Where to put the length of the file. Valid only for file-related header blocks.
|
---|
| 1175 | * @param filename Where to put the name of the file. Valid only for file-related header blocks.
|
---|
| 1176 | * @param pcontrol_char Where to put the type of block (e.g. start-file, end-file, start-tape, ...)
|
---|
| 1177 | * @return 0 for success, nonzero for failure.
|
---|
| 1178 | * @note If you read a marker (@p pcontrol_char) you're not expecting, you can call wrong_marker().
|
---|
| 1179 | */
|
---|
| 1180 | int
|
---|
[128] | 1181 | read_header_block_from_stream(long long *plen, char *filename,
|
---|
| 1182 | int *pcontrol_char)
|
---|
[1] | 1183 | {
|
---|
| 1184 |
|
---|
[128] | 1185 | /*@ buffers ***************************************************** */
|
---|
| 1186 | char *tempblock;
|
---|
[1] | 1187 |
|
---|
[128] | 1188 | /*@ int ********************************************************* */
|
---|
| 1189 | int i, retval;
|
---|
[1] | 1190 |
|
---|
[128] | 1191 | /*@ end vars *************************************************** */
|
---|
[1] | 1192 |
|
---|
[128] | 1193 | tempblock = (char *) malloc((size_t) TAPE_BLOCK_SIZE);
|
---|
[1] | 1194 |
|
---|
[128] | 1195 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
| 1196 | tempblock[i] = 0;
|
---|
| 1197 | }
|
---|
| 1198 | while (!(*pcontrol_char = tempblock[7000])) {
|
---|
| 1199 | g_tape_posK +=
|
---|
| 1200 | fread(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1201 | g_tape_stream) / 1024;
|
---|
| 1202 | }
|
---|
[1] | 1203 | /* memcpy((char*)plength_of_incoming_file,(char*)tempblock+7001,sizeof(long long)); */
|
---|
| 1204 | /* for(*plen=0,i=7;i>=0;i--) {*plen<<=8; *plen |= tempblock[7001+i];} */
|
---|
[128] | 1205 | memcpy((char *) plen, tempblock + 7001, sizeof(long long));
|
---|
[1934] | 1206 | if (strcmp(tempblock + 6000 + *pcontrol_char, STR_HEADER)) {
|
---|
[128] | 1207 | log_it("Bad header block at %ld K", (long) g_tape_posK);
|
---|
| 1208 | }
|
---|
| 1209 | strcpy(filename, tempblock + 1000);
|
---|
[1] | 1210 | /* strcpy(cksum,tempblock+5555);*/
|
---|
| 1211 | /* log_it( "%s (reading) fname=%s, filesize=%ld K",
|
---|
| 1212 | marker_to_string (*pcontrol_char), filename,
|
---|
| 1213 | (long) ((*plen) >> 10));
|
---|
| 1214 | */
|
---|
[128] | 1215 | if (*pcontrol_char == BLK_ABORTED_BACKUP) {
|
---|
| 1216 | log_to_screen("I can't verify an aborted backup.");
|
---|
| 1217 | retval = 1;
|
---|
| 1218 | } else {
|
---|
| 1219 | retval = 0;
|
---|
| 1220 | }
|
---|
| 1221 | for (i = 1000; i < 1020; i++) {
|
---|
| 1222 | if (tempblock[i] < 32 || tempblock[i] > 126) {
|
---|
| 1223 | tempblock[i] = ' ';
|
---|
| 1224 | }
|
---|
| 1225 | }
|
---|
| 1226 | tempblock[i] = '\0';
|
---|
| 1227 | log_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
| 1228 | marker_to_string(*pcontrol_char), tempblock + 1000,
|
---|
| 1229 | (long) (*plen) >> 10);
|
---|
| 1230 | paranoid_free(tempblock);
|
---|
| 1231 | return (retval);
|
---|
[1] | 1232 | }
|
---|
| 1233 |
|
---|
| 1234 |
|
---|
| 1235 |
|
---|
| 1236 | /**
|
---|
| 1237 | * Add specified file/slice to the internal catalog of all archives written.
|
---|
| 1238 | * This lets us restart on a new CD/tape/whatever if it runs out of room. We just
|
---|
| 1239 | * write the last [buffer size] MB from the catalog to the new tape, so we know
|
---|
| 1240 | * we have @e all archives on some CD/tape/whatever.
|
---|
| 1241 | * @param type The type of file we're cataloging (afioball, slice, something else)
|
---|
| 1242 | * @param number The fileset number or biggiefile number.
|
---|
| 1243 | * @param aux The slice number if it's a biggiefile, or any other additional info.
|
---|
| 1244 | * @param fn The original full pathname of the file we're recording.
|
---|
| 1245 | * @return The index of the record we just added.
|
---|
| 1246 | */
|
---|
[128] | 1247 | int register_in_tape_catalog(t_archtype type, int number, long aux,
|
---|
| 1248 | char *fn)
|
---|
[1] | 1249 | {
|
---|
[128] | 1250 | int last;
|
---|
[2176] | 1251 | char fname[MAX_TAPECAT_FNAME_LEN+1];
|
---|
[128] | 1252 | char *p;
|
---|
[1] | 1253 |
|
---|
[128] | 1254 | p = strrchr(fn, '/');
|
---|
| 1255 | if (p) {
|
---|
| 1256 | p++;
|
---|
| 1257 | } else {
|
---|
| 1258 | p = fn;
|
---|
| 1259 | }
|
---|
| 1260 | strncpy(fname, p, MAX_TAPECAT_FNAME_LEN);
|
---|
| 1261 | fname[MAX_TAPECAT_FNAME_LEN] = '\0';
|
---|
| 1262 | last = g_tapecatalog->entries;
|
---|
| 1263 | if (last >= MAX_TAPECATALOG_ENTRIES) {
|
---|
| 1264 | log_it
|
---|
| 1265 | ("Warning - can't log #%d in tape catalog - too many entries already",
|
---|
| 1266 | number);
|
---|
| 1267 | return (-1);
|
---|
| 1268 | }
|
---|
| 1269 | g_tapecatalog->el[last].type = type;
|
---|
| 1270 | g_tapecatalog->el[last].number = number;
|
---|
| 1271 | g_tapecatalog->el[last].aux = aux;
|
---|
| 1272 | g_tapecatalog->el[last].tape_posK = g_tape_posK;
|
---|
| 1273 | strcpy(g_tapecatalog->el[last].fname, fname);
|
---|
| 1274 | g_tapecatalog->entries++;
|
---|
| 1275 | return (last); // returns the index of the record we've jsut added
|
---|
[1] | 1276 | }
|
---|
| 1277 |
|
---|
| 1278 |
|
---|
| 1279 |
|
---|
| 1280 |
|
---|
| 1281 | /**
|
---|
| 1282 | * Decide whether we should start a new tape. This is TRUE if we've run out of tape
|
---|
| 1283 | * (got SIGPIPE) or look like we will.
|
---|
| 1284 | * @param mediasize The size of the tape in megabytes.
|
---|
| 1285 | * @param length_of_incoming_file The length of the file we're about to write, in bytes.
|
---|
| 1286 | * @bug This seems like it'll only work for media_size != autodetect, but Mondo only allows
|
---|
| 1287 | * autodetecting the size. Huh?
|
---|
| 1288 | */
|
---|
[684] | 1289 |
|
---|
| 1290 | /* BERLIOS: Should be reviewed for mediasize being a off_t ??? */
|
---|
[1] | 1291 | bool
|
---|
[128] | 1292 | should_we_write_to_next_tape(long mediasize,
|
---|
[684] | 1293 | off_t length_of_incoming_file)
|
---|
[1] | 1294 | {
|
---|
[128] | 1295 | /*@ bool's ***************************************************** */
|
---|
| 1296 | bool we_need_a_new_tape = FALSE;
|
---|
[1] | 1297 |
|
---|
[128] | 1298 | /*@ end vars *************************************************** */
|
---|
[1] | 1299 |
|
---|
[128] | 1300 | if (mediasize == 0) {
|
---|
| 1301 | return (FALSE);
|
---|
| 1302 | }
|
---|
| 1303 | if (mediasize > 0 && (g_tape_posK >> 10 >= mediasize)) {
|
---|
| 1304 | log_it("mediasize = %ld", mediasize);
|
---|
| 1305 | we_need_a_new_tape = TRUE;
|
---|
[541] | 1306 | log_to_screen("Should have started a new tape/CD already");
|
---|
[128] | 1307 | }
|
---|
| 1308 | if ((g_tape_posK + length_of_incoming_file / 1024) >> 10 >=
|
---|
| 1309 | mediasize - (SLICE_SIZE * 4 / 1024)) {
|
---|
| 1310 | log_it("g_tape_posK = %ld\nmediasize = %ld\n", g_tape_posK,
|
---|
| 1311 | mediasize);
|
---|
| 1312 | we_need_a_new_tape = TRUE;
|
---|
| 1313 | }
|
---|
| 1314 | return (we_need_a_new_tape);
|
---|
[1] | 1315 | }
|
---|
| 1316 |
|
---|
| 1317 |
|
---|
| 1318 | /**
|
---|
| 1319 | * Seek through the stream until we find a header block where the NAME field matches
|
---|
| 1320 | * @p the_file_I_was_reading. This is useful if you've just started reading from
|
---|
| 1321 | * a new tape and want to find the file you were reading when the tape ended.
|
---|
| 1322 | * @param the_file_I_was_reading File name to look for.
|
---|
| 1323 | * @return 0 for success, nonzero for failure.
|
---|
| 1324 | */
|
---|
[128] | 1325 | int skip_incoming_files_until_we_find_this_one(char
|
---|
| 1326 | *the_file_I_was_reading)
|
---|
[1] | 1327 | {
|
---|
[128] | 1328 | char *pA;
|
---|
| 1329 | char *pB;
|
---|
| 1330 | int res;
|
---|
| 1331 | int ctrl_chr;
|
---|
| 1332 | char *temp_fname;
|
---|
| 1333 | char *datablock;
|
---|
| 1334 | long long temp_size, size;
|
---|
| 1335 | long bytes_to_write;
|
---|
[1] | 1336 |
|
---|
[128] | 1337 | datablock = malloc(TAPE_BLOCK_SIZE);
|
---|
| 1338 | malloc_string(temp_fname);
|
---|
| 1339 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1340 | if (pB) {
|
---|
| 1341 | pB++;
|
---|
| 1342 | } else {
|
---|
| 1343 | pB = the_file_I_was_reading;
|
---|
[1] | 1344 | }
|
---|
[128] | 1345 | log_msg(1, "skip_incoming_..(%s)", pB);
|
---|
| 1346 | log_msg(2, "Looking for initial START_AN_AFIO_OR_SLICE");
|
---|
| 1347 | ctrl_chr = -1;
|
---|
| 1348 | while (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1349 | res =
|
---|
| 1350 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1351 | &ctrl_chr);
|
---|
| 1352 | if (ctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1353 | break;
|
---|
| 1354 | }
|
---|
| 1355 | log_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
| 1356 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1357 | log_msg(3, "Still trying to re-sync w/ tape");
|
---|
| 1358 | }
|
---|
| 1359 | while (ctrl_chr != BLK_START_FILE) {
|
---|
| 1360 | res =
|
---|
| 1361 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1362 | &ctrl_chr);
|
---|
| 1363 | if (ctrl_chr == BLK_START_FILE) {
|
---|
| 1364 | break;
|
---|
| 1365 | }
|
---|
| 1366 | log_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
| 1367 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1368 | log_msg(3, "Still trying to re-sync w/ tape");
|
---|
| 1369 | }
|
---|
| 1370 | pA = strrchr(temp_fname, '/');
|
---|
| 1371 | if (pA) {
|
---|
| 1372 | pA++;
|
---|
| 1373 | } else {
|
---|
| 1374 | pA = temp_fname;
|
---|
| 1375 | }
|
---|
| 1376 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1377 | if (pB) {
|
---|
| 1378 | pB++;
|
---|
| 1379 | } else {
|
---|
| 1380 | pB = the_file_I_was_reading;
|
---|
| 1381 | }
|
---|
| 1382 | while (strcmp(pA, pB)) {
|
---|
| 1383 | log_msg(6, "Skipping %s (it's not %s)", temp_fname,
|
---|
| 1384 | the_file_I_was_reading);
|
---|
| 1385 | for (size = temp_size; size > 0; size -= bytes_to_write) {
|
---|
| 1386 | bytes_to_write =
|
---|
| 1387 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
| 1388 | // FIXME - needs error-checking and -catching
|
---|
| 1389 | fread(datablock, 1, (size_t) TAPE_BLOCK_SIZE, g_tape_stream);
|
---|
| 1390 | }
|
---|
| 1391 | res =
|
---|
| 1392 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1393 | &ctrl_chr);
|
---|
| 1394 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 1395 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
| 1396 | }
|
---|
| 1397 | res =
|
---|
| 1398 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1399 | &ctrl_chr);
|
---|
| 1400 | if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
|
---|
| 1401 | wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1402 | }
|
---|
| 1403 | res =
|
---|
| 1404 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1405 | &ctrl_chr);
|
---|
| 1406 | if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1407 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1408 | }
|
---|
| 1409 | res =
|
---|
| 1410 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1411 | &ctrl_chr);
|
---|
| 1412 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 1413 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1414 | }
|
---|
| 1415 | pA = strrchr(temp_fname, '/');
|
---|
| 1416 | if (pA) {
|
---|
| 1417 | pA++;
|
---|
| 1418 | } else {
|
---|
| 1419 | pA = temp_fname;
|
---|
| 1420 | }
|
---|
| 1421 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1422 | if (pB) {
|
---|
| 1423 | pB++;
|
---|
| 1424 | } else {
|
---|
| 1425 | pB = the_file_I_was_reading;
|
---|
| 1426 | }
|
---|
| 1427 | }
|
---|
| 1428 | log_msg(2, "Reading %s (it matches %s)", temp_fname,
|
---|
| 1429 | the_file_I_was_reading);
|
---|
| 1430 | paranoid_free(temp_fname);
|
---|
| 1431 | paranoid_free(datablock);
|
---|
| 1432 | return (0);
|
---|
[1] | 1433 | }
|
---|
| 1434 |
|
---|
| 1435 |
|
---|
| 1436 | /**
|
---|
| 1437 | * Start to read from the next tape. Assumes the user has already inserted it.
|
---|
| 1438 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1439 | * @return 0 for success, nonzero for failure.
|
---|
| 1440 | */
|
---|
[1645] | 1441 | int start_to_read_from_next_tape()
|
---|
[1] | 1442 | {
|
---|
[128] | 1443 | /*@ int ********************************************************* */
|
---|
| 1444 | int res = 0;
|
---|
| 1445 | char *sz_msg;
|
---|
| 1446 | int ctrlchr;
|
---|
| 1447 | long long temp_size;
|
---|
| 1448 | malloc_string(sz_msg);
|
---|
| 1449 | /*@ end vars *************************************************** */
|
---|
[1] | 1450 |
|
---|
[128] | 1451 | paranoid_pclose(g_tape_stream);
|
---|
[1934] | 1452 | sync();
|
---|
| 1453 | sync();
|
---|
| 1454 | sync();
|
---|
[128] | 1455 | log_it("Next tape requested.");
|
---|
| 1456 | insist_on_this_tape_number(g_current_media_number + 1); // will increment it, too
|
---|
| 1457 | log_it("Opening IN the next tape");
|
---|
| 1458 | if (!
|
---|
| 1459 | (g_tape_stream =
|
---|
| 1460 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 1461 | bkpinfo->internal_tape_block_size))) {
|
---|
| 1462 | log_OS_error(g_tape_fifo);
|
---|
[541] | 1463 | log_to_screen("Cannot openin stream device");
|
---|
[128] | 1464 | return (1);
|
---|
| 1465 | }
|
---|
| 1466 | g_tape_posK = 0;
|
---|
| 1467 | g_sigpipe = FALSE;
|
---|
| 1468 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1469 | if (ctrlchr != BLK_START_OF_TAPE) {
|
---|
| 1470 | wrong_marker(BLK_START_OF_TAPE, ctrlchr);
|
---|
| 1471 | }
|
---|
| 1472 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1473 | if (ctrlchr != BLK_START_OF_BACKUP) {
|
---|
| 1474 | wrong_marker(BLK_START_OF_BACKUP, ctrlchr);
|
---|
| 1475 | } else {
|
---|
| 1476 | log_msg(3, "Next tape opened OK. Whoopee!");
|
---|
| 1477 | }
|
---|
| 1478 | paranoid_free(sz_msg);
|
---|
| 1479 | return (res);
|
---|
[1] | 1480 | }
|
---|
| 1481 |
|
---|
| 1482 |
|
---|
| 1483 |
|
---|
| 1484 | /**
|
---|
| 1485 | * Start to write to the next tape. Assume the user has already inserted it.
|
---|
| 1486 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1487 | * @return 0 for success, nonzero for failure.
|
---|
| 1488 | */
|
---|
[1645] | 1489 | int start_to_write_to_next_tape()
|
---|
[1] | 1490 | {
|
---|
[128] | 1491 | int res = 0;
|
---|
[2520] | 1492 | char *command = NULL;
|
---|
| 1493 |
|
---|
[128] | 1494 | paranoid_pclose(g_tape_stream);
|
---|
| 1495 | system("sync");
|
---|
| 1496 | system("sync");
|
---|
| 1497 | system("sync");
|
---|
| 1498 | log_it("New tape requested.");
|
---|
| 1499 | insist_on_this_tape_number(g_current_media_number + 1); // will increment g_current_media, too
|
---|
| 1500 | if (g_current_media_number > MAX_NOOF_MEDIA) {
|
---|
| 1501 | res++;
|
---|
[541] | 1502 | log_to_screen("Too many tapes. Man, you need to use nfs!");
|
---|
[1] | 1503 | }
|
---|
[128] | 1504 | if (bkpinfo->backup_media_type == cdstream) {
|
---|
[2520] | 1505 | mr_asprintf(&command,
|
---|
[128] | 1506 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 1507 | bkpinfo->media_device, bkpinfo->cdrw_speed, MONDO_LOGFILE,
|
---|
| 1508 | MONDO_LOGFILE);
|
---|
| 1509 | log_it("Opening OUT to next CD with the command");
|
---|
| 1510 | log_it(command);
|
---|
| 1511 | log_it("Let's see what happens, shall we?");
|
---|
| 1512 | g_tape_stream = popen(command, "w");
|
---|
[2520] | 1513 | mr_free(command);
|
---|
| 1514 |
|
---|
[128] | 1515 | if (!g_tape_stream) {
|
---|
[541] | 1516 | log_to_screen("Failed to openout to cdstream (fifo)");
|
---|
[128] | 1517 | return (1);
|
---|
| 1518 | }
|
---|
| 1519 | } else {
|
---|
| 1520 | log_it("Opening OUT to next tape");
|
---|
| 1521 | if (!
|
---|
| 1522 | (g_tape_stream =
|
---|
| 1523 | open_device_via_buffer(bkpinfo->media_device, 'w',
|
---|
| 1524 | bkpinfo->internal_tape_block_size))) {
|
---|
| 1525 | log_OS_error(g_tape_fifo);
|
---|
[541] | 1526 | log_to_screen("Cannot openin stream device");
|
---|
[128] | 1527 | return (1);
|
---|
| 1528 | }
|
---|
[1] | 1529 | }
|
---|
[128] | 1530 | g_tape_posK = 0;
|
---|
| 1531 | g_sigpipe = FALSE;
|
---|
[684] | 1532 | res += write_header_block_to_stream((off_t)0, "start-of-tape", BLK_START_OF_TAPE); /* just in case */
|
---|
| 1533 | res += write_header_block_to_stream((off_t)0, "start-of-backup", BLK_START_OF_BACKUP); /* just in case */
|
---|
[128] | 1534 | return (res);
|
---|
[1] | 1535 | }
|
---|
| 1536 |
|
---|
| 1537 |
|
---|
| 1538 |
|
---|
| 1539 |
|
---|
| 1540 | /**
|
---|
| 1541 | * Write a bufferfull of the most recent archives to the tape. The
|
---|
| 1542 | * rationale behind this is a bit complex. If the previous tape ended
|
---|
| 1543 | * suddenly (EOF or otherwise) some archives were probably left in the
|
---|
| 1544 | * buffer. That means that Mondo thinks they have been written, but
|
---|
| 1545 | * the external binary @c buffer has not actually written them. So to
|
---|
| 1546 | * be safe, we start the new tape by writing the last bufferfull from
|
---|
| 1547 | * the old one. This insures that all archives will be on at least
|
---|
| 1548 | * one tape. Sounds inelegant, but it works.
|
---|
| 1549 | * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
|
---|
| 1550 | * @return 0 for success, nonzero for failure.
|
---|
| 1551 | */
|
---|
[1645] | 1552 | int write_backcatalog_to_tape()
|
---|
[1] | 1553 | {
|
---|
[128] | 1554 | int i, last, res = 0;
|
---|
[2520] | 1555 | char *fname = NULL;
|
---|
[1] | 1556 |
|
---|
[128] | 1557 | log_msg(2, "I am now writing back catalog to tape");
|
---|
| 1558 | last = g_tapecatalog->entries - 1;
|
---|
| 1559 | for (i = 0; i <= last; i++) {
|
---|
[2520] | 1560 | mr_asprintf(&fname, "%s/tmpfs/backcatalog/%s", bkpinfo->tmpdir, g_tapecatalog->el[i].fname);
|
---|
[128] | 1561 | if (!does_file_exist(fname)) {
|
---|
| 1562 | log_msg(6, "Can't write %s - it doesn't exist.", fname);
|
---|
| 1563 | } else {
|
---|
| 1564 | write_header_block_to_stream(length_of_file(fname),
|
---|
| 1565 | "start-backcatalog-afio-or-slice",
|
---|
| 1566 | BLK_START_AN_AFIO_OR_SLICE);
|
---|
| 1567 | log_msg(2, "Writing %s", fname);
|
---|
[1645] | 1568 | if (write_file_to_stream_from_file(fname)) {
|
---|
[128] | 1569 | res++;
|
---|
| 1570 | log_msg(2, "%s failed", fname);
|
---|
| 1571 | }
|
---|
| 1572 | if (i != last) {
|
---|
[684] | 1573 | write_header_block_to_stream((off_t)0,
|
---|
[128] | 1574 | "stop-backcatalog-afio-or-slice",
|
---|
| 1575 | BLK_STOP_AN_AFIO_OR_SLICE);
|
---|
| 1576 | }
|
---|
| 1577 | }
|
---|
[2520] | 1578 | mr_free(fname);
|
---|
[128] | 1579 | }
|
---|
| 1580 | log_msg(2, "Finished writing back catalog to tape");
|
---|
| 1581 | return (res);
|
---|
[1] | 1582 | }
|
---|
| 1583 |
|
---|
| 1584 |
|
---|
| 1585 |
|
---|
| 1586 | /**
|
---|
| 1587 | * Write all.tar.gz (produced by Mindi) to the first 32M of the first tape.
|
---|
| 1588 | * @param fname The path to all.tar.gz.
|
---|
| 1589 | * @return 0 for success, nonzero for failure.
|
---|
| 1590 | */
|
---|
[128] | 1591 | int write_data_disks_to_stream(char *fname)
|
---|
[1] | 1592 | {
|
---|
[128] | 1593 | /*@ pointers *************************************************** */
|
---|
| 1594 | FILE *fin;
|
---|
[2520] | 1595 | char *tmp = NULL;
|
---|
[1] | 1596 |
|
---|
[128] | 1597 | /*@ long ******************************************************* */
|
---|
| 1598 | long m = -1;
|
---|
| 1599 | long templong;
|
---|
[1] | 1600 |
|
---|
[128] | 1601 | /*@ int ******************************************************** */
|
---|
| 1602 | int i, j;
|
---|
[1] | 1603 |
|
---|
[128] | 1604 | /*@ buffers **************************************************** */
|
---|
| 1605 | char tempblock[256 * 1024];
|
---|
[1] | 1606 |
|
---|
[128] | 1607 | /*@ end vars *************************************************** */
|
---|
[1] | 1608 |
|
---|
[541] | 1609 | open_evalcall_form("Writing data disks to tape");
|
---|
| 1610 | log_to_screen("Writing data disks to tape");
|
---|
[128] | 1611 | log_it("Data disks = %s", fname);
|
---|
| 1612 | if (!does_file_exist(fname)) {
|
---|
[2520] | 1613 | mr_asprintf(&tmp, "Cannot find %s", fname);
|
---|
[128] | 1614 | log_to_screen(tmp);
|
---|
[2520] | 1615 | mr_free(tmp);
|
---|
[128] | 1616 | return (1);
|
---|
[1] | 1617 | }
|
---|
[128] | 1618 | if (!(fin = fopen(fname, "r"))) {
|
---|
| 1619 | log_OS_error(fname);
|
---|
| 1620 | fatal_error("Cannot openin the data disk");
|
---|
| 1621 | }
|
---|
| 1622 | for (i = 0; i < 32; i++) { /* 32MB */
|
---|
| 1623 | for (j = 0; j < 4; j++) { /* 256K x 4 = 1MB (1024K) */
|
---|
| 1624 | if (!feof(fin)) {
|
---|
| 1625 | m = (long) fread(tempblock, 1, 256 * 1024, fin);
|
---|
| 1626 | } else {
|
---|
| 1627 | m = 0;
|
---|
| 1628 | }
|
---|
| 1629 | for (; m < 256 * 1024; m++) {
|
---|
| 1630 | tempblock[m] = '\0';
|
---|
| 1631 | }
|
---|
| 1632 | g_tape_posK +=
|
---|
| 1633 | fwrite(tempblock, 1, 256 * 1024, g_tape_stream) / 1024;
|
---|
| 1634 | }
|
---|
| 1635 | if (i > g_tape_buffer_size_MB) // otherwise, 'buffer' distorts calculations
|
---|
| 1636 | {
|
---|
| 1637 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 1638 | update_evalcall_form((int) (templong));
|
---|
| 1639 | }
|
---|
| 1640 | }
|
---|
| 1641 | paranoid_fclose(fin);
|
---|
| 1642 | close_evalcall_form();
|
---|
| 1643 | return (0);
|
---|
[1] | 1644 | }
|
---|
| 1645 |
|
---|
| 1646 |
|
---|
| 1647 |
|
---|
| 1648 |
|
---|
| 1649 | /**
|
---|
| 1650 | * Copy @p infile to the opened stream (CD or tape).
|
---|
| 1651 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 1652 | * @param infile The file to write to the stream.
|
---|
| 1653 | * @return 0 for success, nonzero for failure.
|
---|
| 1654 | */
|
---|
[1645] | 1655 | int write_file_to_stream_from_file(char *infile)
|
---|
[1] | 1656 | {
|
---|
[128] | 1657 | /*@ buffers **************************************************** */
|
---|
[2520] | 1658 | char *tmp = NULL;
|
---|
[128] | 1659 | char datablock[TAPE_BLOCK_SIZE];
|
---|
[2520] | 1660 | char *checksum = NULL;
|
---|
[128] | 1661 | char *infile_basename;
|
---|
[1] | 1662 |
|
---|
[128] | 1663 | /*@ int ******************************************************** */
|
---|
| 1664 | int retval = 0;
|
---|
| 1665 | int noof_blocks;
|
---|
[1] | 1666 |
|
---|
[128] | 1667 | /* unsigned int ch; */
|
---|
| 1668 | unsigned int crc16;
|
---|
| 1669 | unsigned int crctt;
|
---|
[1] | 1670 |
|
---|
[128] | 1671 | /*@ pointers *************************************************** */
|
---|
| 1672 | FILE *fin;
|
---|
| 1673 | char *p;
|
---|
[1] | 1674 |
|
---|
[128] | 1675 | /*@ long ******************************************************* */
|
---|
| 1676 | long bytes_to_read = 0;
|
---|
| 1677 | long i;
|
---|
[1] | 1678 |
|
---|
[684] | 1679 | off_t filesize;
|
---|
[1] | 1680 |
|
---|
| 1681 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1682 | int ch;
|
---|
[1] | 1683 | #endif
|
---|
| 1684 |
|
---|
[128] | 1685 | /*@ initialize ************************************************ */
|
---|
| 1686 | crc16 = 0;
|
---|
| 1687 | crctt = 0;
|
---|
[1] | 1688 |
|
---|
| 1689 |
|
---|
| 1690 |
|
---|
[128] | 1691 | /*@ end vars *************************************************** */
|
---|
[1] | 1692 |
|
---|
[128] | 1693 | infile_basename = strrchr(infile, '/');
|
---|
| 1694 | if (infile_basename) {
|
---|
| 1695 | infile_basename++;
|
---|
| 1696 | } else {
|
---|
| 1697 | infile_basename = infile;
|
---|
| 1698 | }
|
---|
| 1699 | filesize = length_of_file(infile);
|
---|
| 1700 | if (should_we_write_to_next_tape
|
---|
| 1701 | (bkpinfo->media_size[g_current_media_number], filesize)) {
|
---|
[1645] | 1702 | start_to_write_to_next_tape();
|
---|
| 1703 | write_backcatalog_to_tape();
|
---|
[128] | 1704 | }
|
---|
| 1705 | p = strrchr(infile, '/');
|
---|
| 1706 | if (!p) {
|
---|
| 1707 | p = infile;
|
---|
| 1708 | } else {
|
---|
| 1709 | p++;
|
---|
| 1710 | }
|
---|
[2520] | 1711 | mr_asprintf(&tmp, "Writing file '%s' to tape (%ld KB)", p,
|
---|
[128] | 1712 | (long) filesize >> 10);
|
---|
| 1713 | log_it(tmp);
|
---|
[2520] | 1714 | mr_free(tmp);
|
---|
[128] | 1715 | write_header_block_to_stream(filesize, infile_basename,
|
---|
| 1716 | BLK_START_FILE);
|
---|
[1] | 1717 | //go_here_to_restart_saving_of_file:
|
---|
[128] | 1718 | if (!(fin = fopen(infile, "r"))) {
|
---|
| 1719 | log_OS_error(infile);
|
---|
| 1720 | return (1);
|
---|
[1] | 1721 | }
|
---|
[128] | 1722 | for (noof_blocks = 0; filesize > 0;
|
---|
| 1723 | noof_blocks++, filesize -= bytes_to_read) {
|
---|
| 1724 | if (filesize < TAPE_BLOCK_SIZE) {
|
---|
| 1725 | bytes_to_read = (long) filesize;
|
---|
| 1726 | for (i = 0; i < TAPE_BLOCK_SIZE; i++) {
|
---|
| 1727 | datablock[i] = '\0';
|
---|
| 1728 | }
|
---|
| 1729 | } else {
|
---|
| 1730 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
| 1731 | }
|
---|
| 1732 | (void) fread(datablock, 1, (size_t) bytes_to_read, fin);
|
---|
| 1733 | g_tape_posK +=
|
---|
| 1734 | fwrite(datablock, 1, /*bytes_to_read */
|
---|
| 1735 | (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1736 | g_tape_stream) / 1024;
|
---|
| 1737 | if (g_sigpipe) {
|
---|
[2230] | 1738 | log_it("Sigpipe occurred recently. I'll start a new tape.");
|
---|
[128] | 1739 | fclose(fin);
|
---|
| 1740 | g_sigpipe = FALSE;
|
---|
[1645] | 1741 | start_to_write_to_next_tape();
|
---|
| 1742 | write_backcatalog_to_tape(); // kinda-sorta recursive :)
|
---|
[128] | 1743 | return (0);
|
---|
| 1744 | }
|
---|
[1] | 1745 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1746 | for (i = 0; i < bytes_to_read; i++) {
|
---|
| 1747 | ch = datablock[i];
|
---|
| 1748 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 1749 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 1750 | }
|
---|
[1] | 1751 | #endif
|
---|
[128] | 1752 | }
|
---|
| 1753 | paranoid_fclose(fin);
|
---|
[2520] | 1754 | mr_asprintf(&checksum, "%04x%04x", crc16, crctt);
|
---|
[684] | 1755 | /* BERLIOS: what does it do ??? */
|
---|
[2520] | 1756 | write_header_block_to_stream((off_t)g_current_media_number, checksum, BLK_STOP_FILE);
|
---|
| 1757 | mr_free(checksum);
|
---|
| 1758 |
|
---|
[1] | 1759 | // log_it("File '%s' written to tape.", infile);
|
---|
[128] | 1760 | return (retval);
|
---|
[1] | 1761 | }
|
---|
| 1762 |
|
---|
| 1763 |
|
---|
| 1764 |
|
---|
| 1765 |
|
---|
| 1766 |
|
---|
| 1767 | /**
|
---|
| 1768 | * Write a header block to the opened stream (CD or tape).
|
---|
| 1769 | * @param length_of_incoming_file The length to store in the header block.
|
---|
| 1770 | * Usually matters only if this is a file-related header, in which case it should
|
---|
| 1771 | * be the length of the file that will follow.
|
---|
| 1772 | * @param filename The filename to store in the header block. Usually matters
|
---|
| 1773 | * only if this is a file-related header, in which case this should be the name
|
---|
| 1774 | * if the file that will follow.
|
---|
| 1775 | * @param control_char The type of header block this is (start-file, end-file, start-tape, ...)
|
---|
| 1776 | * @return 0 for success, nonzero for failure.
|
---|
| 1777 | */
|
---|
| 1778 | int
|
---|
[684] | 1779 | write_header_block_to_stream(off_t length_of_incoming_file,
|
---|
[128] | 1780 | char *filename, int control_char)
|
---|
[1] | 1781 | {
|
---|
[128] | 1782 | /*@ buffers **************************************************** */
|
---|
| 1783 | char tempblock[TAPE_BLOCK_SIZE];
|
---|
[2520] | 1784 | char *tmp = NULL;
|
---|
[128] | 1785 | char *p;
|
---|
[1] | 1786 |
|
---|
[128] | 1787 | /*@ int ******************************************************** */
|
---|
| 1788 | int i;
|
---|
[1] | 1789 |
|
---|
[684] | 1790 | off_t olen;
|
---|
[1] | 1791 |
|
---|
[128] | 1792 | /*@ end vars *************************************************** */
|
---|
[1] | 1793 |
|
---|
| 1794 |
|
---|
[128] | 1795 | olen = length_of_incoming_file;
|
---|
| 1796 | p = strrchr(filename, '/'); /* Make 'em go, "Unnnh!" Oh wait, that was _Master_ P... */
|
---|
| 1797 | if (!p) {
|
---|
| 1798 | p = filename;
|
---|
| 1799 | } else {
|
---|
| 1800 | p++;
|
---|
| 1801 | }
|
---|
| 1802 | if (!g_tape_stream) {
|
---|
| 1803 | log_to_screen
|
---|
[541] | 1804 | ("You're not backing up to tape. Why write a tape header?");
|
---|
[128] | 1805 | return (1);
|
---|
| 1806 | }
|
---|
| 1807 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
| 1808 | tempblock[i] = 0;
|
---|
| 1809 | }
|
---|
[1934] | 1810 | sprintf(tempblock + 6000 + control_char, STR_HEADER);
|
---|
[128] | 1811 | tempblock[7000] = control_char;
|
---|
[684] | 1812 | memcpy(tempblock + 7001, (char *) &olen, sizeof(off_t));
|
---|
[128] | 1813 | strcpy(tempblock + 1000, filename);
|
---|
| 1814 | g_tape_posK +=
|
---|
| 1815 | fwrite(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1816 | g_tape_stream) / 1024;
|
---|
[2520] | 1817 | mr_asprintf(&tmp, "%s (fname=%s, size=%ld K)",
|
---|
[128] | 1818 | marker_to_string(control_char), p,
|
---|
| 1819 | (long) length_of_incoming_file >> 10);
|
---|
| 1820 | log_msg(6, tmp);
|
---|
[2520] | 1821 | mr_free(tmp);
|
---|
[128] | 1822 | return (0);
|
---|
[1] | 1823 | }
|
---|
| 1824 |
|
---|
| 1825 |
|
---|
| 1826 |
|
---|
| 1827 |
|
---|
| 1828 |
|
---|
| 1829 |
|
---|
| 1830 |
|
---|
| 1831 |
|
---|
| 1832 |
|
---|
| 1833 |
|
---|
| 1834 | /**
|
---|
| 1835 | * Log (to screen) an erroneous marker, along with what it should have been.
|
---|
| 1836 | * @param should_be What we were expecting.
|
---|
| 1837 | * @param it_is What we got.
|
---|
| 1838 | */
|
---|
[128] | 1839 | void wrong_marker(int should_be, int it_is)
|
---|
[1] | 1840 | {
|
---|
[128] | 1841 | /*@ buffer ***************************************************** */
|
---|
[2520] | 1842 | char *tmp = NULL;
|
---|
[1] | 1843 |
|
---|
| 1844 |
|
---|
[128] | 1845 | /*@ end vars *************************************************** */
|
---|
[2520] | 1846 | mr_asprintf(&tmp, "Wrong marker! (Should be %s, is actually %s)", marker_to_string(should_be), marker_to_string(it_is));
|
---|
[128] | 1847 | log_to_screen(tmp);
|
---|
[2520] | 1848 | mr_free(tmp);
|
---|
[1] | 1849 | }
|
---|
| 1850 |
|
---|
| 1851 | /* @} - end of streamGroup */
|
---|