[1174] | 1 | /* $Id: libmondo-stream.c 1977 2008-06-02 08:49:01Z bruno $
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[1] | 2 |
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| 3 | ...tools for talking to tapes, Monitas streams, etc.
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[1977] | 4 |
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[1] | 5 | */
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| 6 |
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[1174] | 7 | /*
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| 8 | *
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[1] | 9 | * @file
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| 10 | * Functions for writing data to/reading data from streams (tape, CD stream, etc.)
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| 11 | */
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| 12 |
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[1174] | 13 | #include <unistd.h>
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| 14 |
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[1] | 15 | #include "my-stuff.h"
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[1080] | 16 | #include "mr_mem.h"
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[1123] | 17 | #include "mr_msg.h"
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[1369] | 18 | #include "mr_list.h"
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[1548] | 19 | #include "mr_gettext.h"
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[1638] | 20 | #include "mr_conf.h"
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[1174] | 21 |
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[1] | 22 | #include "mondostructures.h"
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| 23 | #include "libmondo-devices.h"
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| 24 | #include "libmondo-stream.h"
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| 25 | #include "libmondo-string-EXT.h"
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| 26 | #include "libmondo-files-EXT.h"
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[1174] | 27 | #include "newt-specific-EXT.h"
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[1] | 28 | #include "libmondo-fork-EXT.h"
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| 29 | #include "libmondo-tools-EXT.h"
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| 30 | #include "libmondo-fifo-EXT.h"
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| 31 |
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| 32 | #define EXTRA_TAPE_CHECKSUMS
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[1939] | 33 | #define STR_HEADER "Mondolicious, baby"
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[1] | 34 |
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| 35 | /*@unused@*/
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[128] | 36 | //static char cvsid[] = "$Id: libmondo-stream.c 1977 2008-06-02 08:49:01Z bruno $";
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[1] | 37 | extern bool g_sigpipe;
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| 38 | extern int g_tape_buffer_size_MB;
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| 39 |
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[948] | 40 | extern char *g_getfacl;
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| 41 | extern char *g_getfattr;
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[1362] | 42 | extern char *MONDO_LOGFILE;
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[948] | 43 |
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[1639] | 44 | extern struct mr_ar_conf *mr_conf;
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[1638] | 45 |
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[1663] | 46 | /* Reference to global bkpinfo */
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| 47 | extern struct s_bkpinfo *bkpinfo;
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| 48 |
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[1] | 49 | /**
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| 50 | * @addtogroup globalGroup
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| 51 | * @{
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| 52 | */
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| 53 | /**
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| 54 | * The file pointer for the opened tape/CD stream.
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| 55 | * Opened and closed by openin_tape(), openin_cdstream(),
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| 56 | * openout_tape(), openout_cdstream(), closein_tape(), closein_cdstream(),
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| 57 | * closeout_tape(), and closeout_cdstream().
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| 58 | */
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| 59 | FILE *g_tape_stream = NULL;
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| 60 |
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| 61 |
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| 62 | /**
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| 63 | * The position (in kilobytes) where we are on the tape.
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| 64 | */
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| 65 | long long g_tape_posK = 0;
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| 66 |
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| 67 | /**
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| 68 | * The current media number we're using. This value is 1-based.
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| 69 | */
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[128] | 70 | int g_current_media_number = -1;
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[1] | 71 |
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| 72 | /**
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[1362] | 73 | * An entry in the tape catalog.
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[1] | 74 | */
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[1362] | 75 | struct s_tapecat_entry {
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| 76 | /**
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| 77 | * The type of archive it is (afioball, slice, or something else).
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| 78 | */
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| 79 | t_archtype type;
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[1] | 80 |
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[1362] | 81 | /**
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| 82 | * The filelist number or biggiefile (not slice!) number.
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| 83 | */
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| 84 | int number;
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[1] | 85 |
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[1362] | 86 | /**
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| 87 | * The slice number if it's a biggiefile.
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| 88 | */
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| 89 | long aux;
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[1] | 90 |
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[1362] | 91 | /**
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| 92 | * The tape position at the point this entry was added.
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| 93 | */
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| 94 | long long tape_posK;
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[1] | 95 |
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[1362] | 96 | /**
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| 97 | * The filename of the file cataloged here.
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| 98 | */
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| 99 | char *fname;
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| 100 | };
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[1] | 101 |
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| 102 |
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[1362] | 103 | /*
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| 104 | * The tape catalog that keeps track of files written to tape.
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| 105 | * made of a list of @p s_tapecat_entry.
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| 106 | * */
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[1369] | 107 | static struct mr_list *tapecatalog;
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[1] | 108 |
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[1362] | 109 | /* function to free the fname field allocated in te */
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| 110 | static void mr_free_te(void *data) {
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| 111 |
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| 112 | struct s_tapecat_entry *te = NULL;
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| 113 |
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| 114 | te = (struct s_tapecat_entry *)data;
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| 115 | mr_free(te->fname);
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| 116 | }
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| 117 |
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| 118 | /* @} - end of globalGroup */
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| 119 |
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| 120 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo);
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| 121 |
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| 122 |
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[1] | 123 | /**
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| 124 | * @addtogroup streamGroup
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| 125 | * @{
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| 126 | */
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| 127 | /**
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| 128 | * Close the global output file descriptor which Mondo has used to read
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| 129 | * from the CD stream.
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| 130 | * @param bkpinfo The backup information structure. Passed directly to closein_tape().
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| 131 | * @return 0 for success, nonzero for failure.
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| 132 | * @note This should be called by restore processes only.
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| 133 | */
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[1663] | 134 | int closein_cdstream()
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[1] | 135 | {
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[1663] | 136 | return (closein_tape());
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[1] | 137 | }
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| 138 |
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| 139 |
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| 140 | /**
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| 141 | * Close the global output file descriptor which Mondo has used to read
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| 142 | * from buffer or dd, which read from the tape.
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| 143 | * @param bkpinfo The backup information structure. Unused.
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| 144 | * @return 0 for success, nonzero for failure.
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| 145 | * @note This should be called by restore processes only.
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| 146 | * @note This function also works for cdstreams for now, but don't count on this behavior.
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| 147 | * @bug @p bkpinfo parameter is unused.
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| 148 | */
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[1663] | 149 | int closein_tape()
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[1] | 150 | {
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[128] | 151 | /*@ int's ******************************************************* */
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| 152 | int retval = 0;
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| 153 | int res = 0;
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| 154 | int ctrl_chr = '\0';
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[1] | 155 |
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[128] | 156 | /*@ buffers ***************************************************** */
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| 157 | char fname[MAX_STR_LEN];
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[1] | 158 |
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[128] | 159 | /*@ long long's ************************************************* */
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| 160 | long long size;
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| 161 | char *blk;
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| 162 | int i;
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[1] | 163 |
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[1080] | 164 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 165 |
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[128] | 166 | log_it("closein_tape() -- entering");
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| 167 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
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| 168 | retval += res;
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| 169 | if (ctrl_chr != BLK_END_OF_BACKUP) {
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| 170 | wrong_marker(BLK_END_OF_BACKUP, ctrl_chr);
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| 171 | }
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| 172 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
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| 173 | retval += res;
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| 174 | if (ctrl_chr != BLK_END_OF_TAPE) {
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| 175 | wrong_marker(BLK_END_OF_TAPE, ctrl_chr);
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| 176 | }
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| 177 | for (i = 0; i < 8 && !feof(g_tape_stream); i++) {
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| 178 | (void) fread(blk, 1, 256 * 1024, g_tape_stream);
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| 179 | }
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| 180 | sleep(1);
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[1175] | 181 | sync();
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[128] | 182 | sleep(1);
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| 183 | paranoid_pclose(g_tape_stream);
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| 184 | log_it("closein_tape() -- leaving");
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| 185 | if (!bkpinfo->please_dont_eject) {
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| 186 | eject_device(bkpinfo->media_device);
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| 187 | }
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[1080] | 188 | mr_free(blk);
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[1369] | 189 | mr_list_free(tapecatalog);
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[128] | 190 | return (retval);
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[1] | 191 | }
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| 192 |
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| 193 |
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| 194 |
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| 195 | /**
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| 196 | * Close the global output file descriptor which Mondo has been using to write
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| 197 | * to the tape device (via buffer or dd).
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| 198 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
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| 199 | * @return 0 for success, nonzero for failure.
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| 200 | * @note This should be called by backup processes only.
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| 201 | */
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[1663] | 202 | int closeout_tape()
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[1] | 203 | {
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[128] | 204 | /*@ int's ******************************************************* */
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| 205 | int retval = 0;
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[1] | 206 |
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[128] | 207 | /*@ long long's ************************************************* */
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[1175] | 208 | int i = 0;
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| 209 | char *blk = NULL;
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[1362] | 210 | struct mr_list_elt *elt = NULL;
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| 211 | struct s_tapecat_entry *te = NULL;
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[1] | 212 |
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[1080] | 213 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 214 |
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[128] | 215 | sleep(1);
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[1175] | 216 | sync();
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[128] | 217 | sleep(1);
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| 218 | log_it("closeout_tape() -- entering");
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| 219 | retval +=
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[684] | 220 | write_header_block_to_stream((off_t)0, "end-of-backup",
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[128] | 221 | BLK_END_OF_BACKUP);
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[684] | 222 | retval += write_header_block_to_stream((off_t)0, "end-of-tape", BLK_END_OF_TAPE); /* just in case */
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[1175] | 223 | /* write 1MB of crap */
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[128] | 224 | for (i = 0; i < 256 * 1024; i++) {
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| 225 | blk[i] = (int) (random() & 0xFF);
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| 226 | }
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| 227 | for (i = 0; i < 4 * 8; i++) {
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| 228 | (void) fwrite(blk, 1, 256 * 1024, g_tape_stream);
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| 229 | if (should_we_write_to_next_tape
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[1365] | 230 | (bkpinfo->media_size, (off_t)256 * 1024)) {
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[1663] | 231 | start_to_write_to_next_tape();
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[128] | 232 | }
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| 233 | }
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| 234 | sleep(2);
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| 235 | paranoid_pclose(g_tape_stream);
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| 236 | log_it("closeout_tape() -- leaving");
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[1369] | 237 | elt = tapecatalog->first;
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[1362] | 238 | while (elt != NULL) {
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| 239 | te = (struct s_tapecat_entry *)elt->data;
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[128] | 240 | log_it("i=%d type=%s num=%d aux=%ld posK=%lld", i,
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[1362] | 241 | (te->type == fileset) ? "fileset" : "bigslice",
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| 242 | te->number, te->aux, te->tape_posK);
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| 243 | i++;
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| 244 | elt = elt->next;
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[128] | 245 | }
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[1080] | 246 | mr_free(blk);
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[1369] | 247 | mr_list_free(tapecatalog);
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[128] | 248 | return (retval);
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[1] | 249 | }
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| 250 |
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| 251 |
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| 252 |
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[128] | 253 | bool mt_says_tape_exists(char *dev)
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[1] | 254 | {
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[128] | 255 | char *command;
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| 256 | int res;
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[1] | 257 |
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[1175] | 258 | mr_asprintf(&command, "mt -f %s status", dev);
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[128] | 259 | res = run_program_and_log_output(command, 1);
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[1080] | 260 | mr_free(command);
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[128] | 261 | if (res) {
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| 262 | return (FALSE);
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| 263 | } else {
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| 264 | return (TRUE);
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| 265 | }
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[1] | 266 | }
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| 267 |
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| 268 |
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| 269 |
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| 270 | /**
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| 271 | * Determine the name and size of the tape device. Tries the SCSI tape for
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| 272 | * this platform, then the IDE tape, then "/dev/st0", then "/dev/osst0".
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| 273 | * @param dev Where to put the found tape device.
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| 274 | * @param siz Where to put the tape size (a string like "4GB")
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| 275 | * @return 0 if success, nonzero if failure (in which @p dev and @p siz are undefined).
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| 276 | */
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[128] | 277 | int find_tape_device_and_size(char *dev, char *siz)
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[1] | 278 | {
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[128] | 279 | char tmp[MAX_STR_LEN];
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[1175] | 280 | char *command = NULL;
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[128] | 281 | char cdr_exe[MAX_STR_LEN];
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| 282 | int res;
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[1] | 283 |
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[1569] | 284 | strcpy(dev, VANILLA_SCSI_TAPE);
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[128] | 285 | log_to_screen("I am looking for your tape streamer. Please wait.");
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[1569] | 286 | log_it("I am looking for your tape streamer. Please wait.");
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| 287 | log_it("Taking %s as default",VANILLA_SCSI_TAPE);
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[128] | 288 | dev[0] = siz[0] = '\0';
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| 289 | if (find_home_of_exe("cdrecord")) {
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| 290 | strcpy(cdr_exe, "cdrecord");
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| 291 | } else {
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| 292 | strcpy(cdr_exe, "dvdrecord");
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[1] | 293 | }
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[1175] | 294 | mr_asprintf(&command, "%s -scanbus 2> /dev/null | grep -i tape | wc -l",
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[128] | 295 | cdr_exe);
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| 296 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 297 | mr_free(command);
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[128] | 298 | if (atoi(tmp) != 1) {
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[1569] | 299 | log_it("Either too few or too many tape streamers for me to detect...");
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[128] | 300 | return 1;
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| 301 | }
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[1175] | 302 | mr_asprintf(&command,
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[128] | 303 | "%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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| 304 | cdr_exe);
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| 305 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 306 | mr_free(command);
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[128] | 307 | if (strlen(tmp) < 2) {
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[1569] | 308 | log_it("Could not check tape device with %s",cdr_exe);
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[128] | 309 | return 1;
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| 310 | }
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[1175] | 311 | mr_asprintf(&command,
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[128] | 312 | "%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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| 313 | cdr_exe);
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| 314 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 315 | mr_free(command);
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| 316 |
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[128] | 317 | strcpy(dev, VANILLA_SCSI_TAPE);
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| 318 | dev[strlen(dev) - 1] = '\0';
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[1574] | 319 | dev[strlen(dev) - 2] = '\0';
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[128] | 320 | strcat(dev, tmp); // e.g. '/dev/st0' becomes '/dev/stN'
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| 321 | res = 0;
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| 322 | if (!mt_says_tape_exists(dev)) {
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| 323 | strcpy(dev, ALT_TAPE);
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| 324 | if (!mt_says_tape_exists(dev)) {
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| 325 | log_it("Cannot openin %s", dev);
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[1569] | 326 | strcpy(dev, "/dev/osst0");
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[128] | 327 | if (!mt_says_tape_exists(dev)) {
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[1574] | 328 | // Stay with VANILLA_SCSI_TAPE
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| 329 | strcpy(dev, VANILLA_SCSI_TAPE);
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[1569] | 330 | res++;
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| 331 | } else {
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| 332 | res = 0;
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[128] | 333 | }
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| 334 | }
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| 335 | }
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[1] | 336 |
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[128] | 337 | log_it("At this point, dev = %s and res = %d", dev, res);
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| 338 |
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[1594] | 339 | mr_asprintf(&command, "%s -scanbus 2> /dev/null | tr -s '\t' ' ' | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | awk '{for(i=1; i<NF; i++) { if (index($i, \"GB\")>0) { print $i;};};};'", cdr_exe);
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| 340 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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| 341 | mr_free(command);
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[1] | 342 |
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[128] | 343 | siz[0] = '\0';
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| 344 | log_it("res=%d; dev=%s", res, dev);
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[1] | 345 |
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[128] | 346 | if (res) {
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| 347 | return (res);
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| 348 | }
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[1] | 349 |
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[128] | 350 | if (strlen(tmp) < 2) {
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| 351 | siz[0] = '\0';
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| 352 | log_it("Warning - size of tape unknown");
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| 353 | return (0);
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| 354 | } else {
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| 355 | strcpy(siz, tmp);
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| 356 | return (0);
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| 357 | }
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[1] | 358 | }
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| 359 |
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| 360 |
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[1663] | 361 | int read_EXAT_files_from_tape(long long *ptmp_size, char *tmp_fname,
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[128] | 362 | int *pctrl_chr, char *xattr_fname,
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| 363 | char *acl_fname)
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[1] | 364 | {
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[128] | 365 | int res = 0;
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[955] | 366 | char *fname = (char *)&res; /* Should NOT be NULL */
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[1977] | 367 | char *tmp = NULL;
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[128] | 368 |
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[1939] | 369 | // xattr
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[948] | 370 | if (g_getfattr) {
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[955] | 371 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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[948] | 372 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
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| 373 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
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| 374 | }
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[1977] | 375 | if (strstr(fname, "xattr") == NULL) {
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| 376 | asprintf(&tmp,"Wrong order expected xattr, got %s, sunshine.", fname);
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| 377 | fatal_error(tmp);
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[948] | 378 | }
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[1663] | 379 | read_file_from_stream_to_file(xattr_fname, *ptmp_size);
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[1977] | 380 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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[948] | 381 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
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| 382 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
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| 383 | }
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[1107] | 384 | mr_msg(1, "Got xattr");
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[1977] | 385 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
[1939] | 386 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
| 387 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 388 | }
|
---|
[1977] | 389 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
| 390 | if (*pctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
[1939] | 391 | log_msg(1, "No acl attributes found, skipping to afio files");
|
---|
| 392 | return(0);
|
---|
| 393 | } else {
|
---|
[1977] | 394 | if (*pctrl_chr != BLK_START_EXTENDED_ATTRIBUTES) {
|
---|
[1939] | 395 | wrong_marker(BLK_START_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 396 | }
|
---|
| 397 | }
|
---|
[128] | 398 | }
|
---|
[1175] | 399 | // acl
|
---|
[948] | 400 | if (g_getfacl) {
|
---|
[955] | 401 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
[948] | 402 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
| 403 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
| 404 | }
|
---|
[1977] | 405 | if (strstr(fname, "acl") == NULL) {
|
---|
| 406 | asprintf(&tmp,"Wrong order expected acl, got %s, sunshine.", fname);
|
---|
| 407 | fatal_error(tmp);
|
---|
| 408 | }
|
---|
[1663] | 409 | read_file_from_stream_to_file(acl_fname, *ptmp_size);
|
---|
[1977] | 410 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
[948] | 411 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
| 412 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
| 413 | }
|
---|
[1977] | 414 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
|
---|
[948] | 415 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
| 416 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 417 | }
|
---|
[1107] | 418 | mr_msg(1, "Got acl");
|
---|
[128] | 419 | }
|
---|
[1175] | 420 | // tarball itself
|
---|
[128] | 421 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
[1939] | 422 | mr_msg(1, "End of extended attributes, now looking for afioball");
|
---|
| 423 | return (0);
|
---|
[1] | 424 | }
|
---|
| 425 |
|
---|
| 426 |
|
---|
[1663] | 427 | int write_EXAT_files_to_tape(char *xattr_fname,
|
---|
[128] | 428 | char *acl_fname)
|
---|
[1] | 429 | {
|
---|
[128] | 430 | int res = 0;
|
---|
[948] | 431 | if (g_getfattr) {
|
---|
[955] | 432 | // xattr
|
---|
[948] | 433 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 434 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
| 435 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 436 | BLK_START_EXAT_FILE);
|
---|
[1663] | 437 | write_file_to_stream_from_file(xattr_fname);
|
---|
[948] | 438 | write_header_block_to_stream((off_t)-1, xattr_fname, BLK_STOP_EXAT_FILE);
|
---|
[1939] | 439 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 440 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
[948] | 441 | }
|
---|
| 442 | if (g_getfacl) {
|
---|
[955] | 443 | // acl
|
---|
[948] | 444 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
[1939] | 445 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
| 446 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
[948] | 447 | BLK_START_EXAT_FILE);
|
---|
[1663] | 448 | write_file_to_stream_from_file(acl_fname);
|
---|
[948] | 449 | write_header_block_to_stream((off_t)-1, acl_fname, BLK_STOP_EXAT_FILE);
|
---|
[1939] | 450 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
[948] | 451 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
| 452 | }
|
---|
[128] | 453 | return (res);
|
---|
[1] | 454 | }
|
---|
| 455 |
|
---|
| 456 |
|
---|
| 457 |
|
---|
| 458 |
|
---|
| 459 | /**
|
---|
| 460 | * Tell the user to insert tape @p tapeno and wait for it to settle (5 seconds).
|
---|
| 461 | * @param tapeno The tape number to insist on.
|
---|
| 462 | * @bug There is currently no way to actually verify that the user has actually
|
---|
| 463 | * inserted the right tape.
|
---|
| 464 | */
|
---|
| 465 | void insist_on_this_tape_number(int tapeno)
|
---|
| 466 | {
|
---|
[128] | 467 | int i;
|
---|
[1175] | 468 | char *tmp = NULL;
|
---|
[1] | 469 |
|
---|
[128] | 470 | log_it("Insisting on tape #%d", tapeno);
|
---|
| 471 | if (g_current_media_number != tapeno) {
|
---|
| 472 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
[1175] | 473 | mr_asprintf(&tmp,
|
---|
| 474 | _("When the tape drive goes quiet, please insert volume %d in this series."),
|
---|
| 475 | tapeno);
|
---|
[128] | 476 | popup_and_OK(tmp);
|
---|
[1175] | 477 | mr_free(tmp);
|
---|
| 478 | open_evalcall_form(_("Waiting while the tape drive settles"));
|
---|
[128] | 479 | } else {
|
---|
[1175] | 480 | open_evalcall_form(_("Waiting while the tape drive rewinds"));
|
---|
[128] | 481 | }
|
---|
[1] | 482 |
|
---|
[128] | 483 | for (i = 0; i <= 100; i += 2) {
|
---|
| 484 | usleep(100000);
|
---|
| 485 | update_evalcall_form(i);
|
---|
| 486 | }
|
---|
| 487 | close_evalcall_form();
|
---|
| 488 | log_it("I assume user has inserted it. They _say_ they have...");
|
---|
| 489 | g_current_media_number = tapeno;
|
---|
[1] | 490 |
|
---|
[128] | 491 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
| 492 | log_it("OK, I've finished insisting. On with the revelry.");
|
---|
[1] | 493 | }
|
---|
| 494 |
|
---|
| 495 |
|
---|
| 496 | /**
|
---|
| 497 | * Debugging aid - log the offset we're at on the tape (reading or writing).
|
---|
| 498 | */
|
---|
[128] | 499 | void log_tape_pos(void)
|
---|
[1] | 500 | {
|
---|
[128] | 501 | log_it("Tape position -- %ld KB (%ld MB)", (long) g_tape_posK,
|
---|
| 502 | (long) g_tape_posK >> 10);
|
---|
[1] | 503 | }
|
---|
| 504 |
|
---|
| 505 |
|
---|
| 506 | /**
|
---|
| 507 | * Add a file to a collection of recently archived filesets/slices.
|
---|
| 508 | * The type is determined by the filename: if it contains ".afio." it is
|
---|
| 509 | * assumed to be a fileset, otherwise if it contains "slice" it's a slice,
|
---|
| 510 | * otherwise we generate a fatal_error().
|
---|
| 511 | * @param td The current @c bkpinfo->tempdir (file will be placed in <tt>td</tt>/tmpfs/backcatalog/).
|
---|
| 512 | * @param latest_fname The file to place in the collection.
|
---|
| 513 | * @return 0, always.
|
---|
| 514 | * @bug Return value is redundant.
|
---|
| 515 | * @bug The detection won't work for uncompressed afioballs (they end in ".afio", no dot afterwards). // Not true. They end in '.' -Hugo
|
---|
| 516 | */
|
---|
| 517 | int maintain_collection_of_recent_archives(char *td, char *latest_fname)
|
---|
| 518 | {
|
---|
[128] | 519 | long long final_alleged_writeK, final_projected_certain_writeK,
|
---|
| 520 | final_actually_certain_writeK = 0, cposK, bufsize_K;
|
---|
[1424] | 521 | int last = 0;
|
---|
| 522 | int i = 0;
|
---|
[128] | 523 | t_archtype type = other;
|
---|
[1175] | 524 | char *command = NULL;
|
---|
| 525 | char *tmpdir = NULL;
|
---|
| 526 | char *old_fname = NULL;
|
---|
[1362] | 527 | struct mr_list_elt *elt = NULL;
|
---|
| 528 | struct s_tapecat_entry *te = NULL;
|
---|
[1] | 529 |
|
---|
[128] | 530 | bufsize_K = (long long) (1024LL * (1 + g_tape_buffer_size_MB));
|
---|
| 531 | if (strstr(latest_fname, ".afio.") || strstr(latest_fname, ".star.")) {
|
---|
| 532 | type = fileset;
|
---|
| 533 | } else if (strstr(latest_fname, "slice")) {
|
---|
| 534 | type = biggieslice;
|
---|
| 535 | } else {
|
---|
| 536 | log_it("fname = %s", latest_fname);
|
---|
| 537 | fatal_error
|
---|
| 538 | ("Unknown type. Internal error in maintain_collection_of_recent_archives()");
|
---|
| 539 | }
|
---|
[1175] | 540 |
|
---|
| 541 | mr_asprintf(&tmpdir, "%s/tmpfs/backcatalog", td);
|
---|
[128] | 542 | mkdir(tmpdir, 0x700);
|
---|
[1175] | 543 | mr_asprintf(&command, "cp -f %s %s", latest_fname, tmpdir);
|
---|
[128] | 544 | if (run_program_and_log_output(command, 6)) {
|
---|
| 545 | log_it("Warning - failed to copy %s to backcatalog at %s",
|
---|
| 546 | latest_fname, tmpdir);
|
---|
| 547 | }
|
---|
[1175] | 548 | mr_free(command);
|
---|
| 549 |
|
---|
[1369] | 550 | last = mr_list_length(tapecatalog) - 1;
|
---|
[128] | 551 | if (last <= 0) {
|
---|
| 552 | iamhere("Too early to start deleting from collection.");
|
---|
| 553 | return (0);
|
---|
| 554 | }
|
---|
[1369] | 555 | elt = tapecatalog->last;
|
---|
[1362] | 556 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 557 | final_alleged_writeK = te->tape_posK;
|
---|
[128] | 558 | final_projected_certain_writeK = final_alleged_writeK - bufsize_K;
|
---|
[1362] | 559 | while (elt != NULL) {
|
---|
| 560 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 561 | cposK = te->tape_posK;
|
---|
[128] | 562 | if (cposK < final_projected_certain_writeK) {
|
---|
| 563 | final_actually_certain_writeK = cposK;
|
---|
| 564 | break;
|
---|
| 565 | }
|
---|
[1362] | 566 | elt = elt->prev;
|
---|
[128] | 567 | }
|
---|
[1362] | 568 | if (elt == NULL) {
|
---|
[128] | 569 | iamhere
|
---|
| 570 | ("Not far enough into tape to start deleting old archives from collection.");
|
---|
| 571 | return (0);
|
---|
| 572 | }
|
---|
[1] | 573 |
|
---|
[1362] | 574 | elt = elt->prev;
|
---|
| 575 | i = 0;
|
---|
| 576 | while ((elt != NULL) && (i < 10)) {
|
---|
| 577 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 578 | mr_asprintf(&old_fname, "%s/%s", tmpdir, te->fname);
|
---|
[128] | 579 | unlink(old_fname);
|
---|
[1175] | 580 | mr_free(old_fname);
|
---|
[1362] | 581 | elt = elt->prev;
|
---|
| 582 | i++;
|
---|
[128] | 583 | }
|
---|
[1175] | 584 | mr_free(tmpdir);
|
---|
[128] | 585 | return (0);
|
---|
[1] | 586 | }
|
---|
| 587 |
|
---|
| 588 |
|
---|
| 589 | /**
|
---|
| 590 | * Open the CD stream for input.
|
---|
| 591 | * @param bkpinfo The backup information structure. Passed to openin_tape().
|
---|
| 592 | * @return 0 for success, nonzero for failure.
|
---|
| 593 | * @note Equivalent to openin_tape() for now, but don't count on this behavior.
|
---|
| 594 | */
|
---|
[1663] | 595 | int openin_cdstream()
|
---|
[1] | 596 | {
|
---|
[1663] | 597 | return (openin_tape());
|
---|
[1] | 598 | }
|
---|
| 599 |
|
---|
| 600 |
|
---|
[1977] | 601 | int set_tape_block_size_with_mt(long internal_tape_block_size)
|
---|
[1] | 602 | {
|
---|
[128] | 603 | char *tmp;
|
---|
| 604 | int res;
|
---|
[1] | 605 |
|
---|
[1977] | 606 | if (strncmp(bkpinfo->media_device, "/dev/", 5)) {
|
---|
[1107] | 607 | mr_msg(1,
|
---|
[128] | 608 | "Not using 'mt setblk'. This isn't an actual /dev entry.");
|
---|
| 609 | return (0);
|
---|
| 610 | }
|
---|
[1977] | 611 | mr_asprintf(&tmp, "mt -f %s setblk %ld",bkpinfo->media_device,internal_tape_block_size);
|
---|
[128] | 612 | res = run_program_and_log_output(tmp, 3);
|
---|
[1080] | 613 | mr_free(tmp);
|
---|
[128] | 614 | return (res);
|
---|
[1] | 615 | }
|
---|
| 616 |
|
---|
[1977] | 617 | /**
|
---|
| 618 | * Return the non-rewinding device when passed the normal one
|
---|
| 619 | * @param tapedev The tape device to open for writing.
|
---|
| 620 | * @note the caller needs to free the string returned
|
---|
| 621 | */
|
---|
| 622 | char *get_non_rewind_dev(char *tapedev)
|
---|
| 623 | {
|
---|
[1] | 624 |
|
---|
[1977] | 625 | char *ntapedev = NULL;
|
---|
| 626 | char *p = NULL;
|
---|
| 627 | char *q = NULL;
|
---|
| 628 | char *r = NULL;
|
---|
| 629 |
|
---|
| 630 | ntapedev = (char *)malloc(strlen(tapedev)+sizeof(char));
|
---|
| 631 | p = strrchr(tapedev,'/');
|
---|
| 632 | if (p == NULL) {
|
---|
| 633 | log_it("Didn't find a '/' in %s",tapedev);
|
---|
| 634 | return(NULL);
|
---|
| 635 | }
|
---|
| 636 |
|
---|
| 637 | /* Copy tapedev content up to the last / */
|
---|
| 638 | q = tapedev;
|
---|
| 639 | r = ntapedev;
|
---|
| 640 | while (q != p) {
|
---|
| 641 | *r = *q;
|
---|
| 642 | r++;
|
---|
| 643 | q++;
|
---|
| 644 | }
|
---|
| 645 | /* Copy the '/' */
|
---|
| 646 | *r = *q;
|
---|
| 647 | r++;
|
---|
| 648 | q++;
|
---|
| 649 | /* Adds a 'n' - non-rewinding */
|
---|
| 650 | *r = 'n';
|
---|
| 651 | r++;
|
---|
| 652 | /* Copy the rest of tapedev */
|
---|
| 653 | while (*q != '\0') {
|
---|
| 654 | *r = *q;
|
---|
| 655 | r++;
|
---|
| 656 | q++;
|
---|
| 657 | }
|
---|
| 658 | *r = '\0';
|
---|
| 659 | if (mt_says_tape_exists(ntapedev)) {
|
---|
| 660 | log_it("Non-rewinding tape device is %s",ntapedev);
|
---|
| 661 | } else {
|
---|
| 662 | log_it("Unable to find non-rewinding tape device.");
|
---|
| 663 | ntapedev = NULL;
|
---|
| 664 | }
|
---|
| 665 | return(ntapedev);
|
---|
| 666 | }
|
---|
| 667 |
|
---|
| 668 |
|
---|
| 669 |
|
---|
[1] | 670 | /**
|
---|
[1977] | 671 | * Handle OBDR if we were asked to do so
|
---|
| 672 | * @param tapedev The tape device to open for reading.
|
---|
| 673 | */
|
---|
| 674 | int skip_obdr(void)
|
---|
| 675 | {
|
---|
| 676 | char *command = NULL;
|
---|
| 677 | int res = 0;
|
---|
| 678 |
|
---|
| 679 | log_it("Skipping OBDR headers");
|
---|
| 680 | asprintf(&command, "mt -f %s rewind",bkpinfo->media_device);
|
---|
| 681 | res = run_program_and_log_output(command, 1);
|
---|
| 682 | paranoid_free(command);
|
---|
| 683 |
|
---|
| 684 | asprintf(&command, "mt -f %s fsf 2",bkpinfo->media_device);
|
---|
| 685 | res = run_program_and_log_output(command, 1);
|
---|
| 686 | paranoid_free(command);
|
---|
| 687 |
|
---|
| 688 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
| 689 | return(res);
|
---|
| 690 | }
|
---|
| 691 |
|
---|
| 692 | /**
|
---|
| 693 | * Handle OBDR if we were asked to do so
|
---|
| 694 | * @param tapedev The tape device to open for writing.
|
---|
| 695 | * @return 0 for success, nonzero for failure.
|
---|
| 696 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
| 697 | * EXISTING DATA on the tape!
|
---|
| 698 | */
|
---|
| 699 | int create_obdr(void)
|
---|
| 700 | {
|
---|
| 701 |
|
---|
| 702 | char *command = NULL;
|
---|
| 703 | int res = 0;
|
---|
| 704 |
|
---|
| 705 | log_it("Creating OBDR headers");
|
---|
| 706 | /* OBDR: First block 10 kB of zero bs = 512 */
|
---|
| 707 | asprintf(&command, "mt -f %s compression off",bkpinfo->media_device);
|
---|
| 708 | res = run_program_and_log_output(command, 1);
|
---|
| 709 | paranoid_free(command);
|
---|
| 710 |
|
---|
| 711 | asprintf(&command, "mt -f %s rewind",bkpinfo->media_device);
|
---|
| 712 | res += run_program_and_log_output(command, 1);
|
---|
| 713 | paranoid_free(command);
|
---|
| 714 |
|
---|
| 715 | set_tape_block_size_with_mt(512);
|
---|
| 716 |
|
---|
| 717 | asprintf(&command, "dd if=/dev/zero of=%s bs=512 count=20",bkpinfo->media_device);
|
---|
| 718 | res += run_program_and_log_output(command, 1);
|
---|
| 719 | paranoid_free(command);
|
---|
| 720 |
|
---|
| 721 | /* OBDR: then ISO boot image bs = 2048 */
|
---|
| 722 | set_tape_block_size_with_mt(2048);
|
---|
| 723 |
|
---|
| 724 | asprintf(&command, "dd if=%s of=%s bs=2048",MINDI_CACHE"/mondorescue.iso",bkpinfo->media_device);
|
---|
| 725 | res += run_program_and_log_output(command, 1);
|
---|
| 726 | paranoid_free(command);
|
---|
| 727 |
|
---|
| 728 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
| 729 | return(res);
|
---|
| 730 | }
|
---|
| 731 |
|
---|
| 732 |
|
---|
| 733 | /**
|
---|
[1] | 734 | * Open the tape device for input.
|
---|
| 735 | * @param bkpinfo The backup information structure. Fields used:
|
---|
| 736 | * - @c bkpinfo->media_device
|
---|
| 737 | * - @c bkpinfo->tmpdir
|
---|
| 738 | * @return 0 for success, nonzero for failure.
|
---|
| 739 | * @note This will also work with a cdstream for now, but don't count on this behavior.
|
---|
| 740 | */
|
---|
[1663] | 741 | int openin_tape()
|
---|
[1] | 742 | {
|
---|
[128] | 743 | /*@ buffer ***************************************************** */
|
---|
| 744 | char fname[MAX_STR_LEN];
|
---|
[1175] | 745 | char *datablock = NULL;
|
---|
| 746 | char *tmp = NULL;
|
---|
[128] | 747 | char old_cwd[MAX_STR_LEN];
|
---|
[1175] | 748 | char *outfname = NULL;
|
---|
[128] | 749 | /*@ int ******************************************************* */
|
---|
| 750 | int i;
|
---|
| 751 | int j;
|
---|
[1977] | 752 | int res = 0;
|
---|
[128] | 753 | long length, templong;
|
---|
| 754 | size_t k;
|
---|
| 755 | int retval = 0;
|
---|
| 756 | int ctrl_chr;
|
---|
[1] | 757 |
|
---|
[128] | 758 | /*@ long long ************************************************* */
|
---|
| 759 | long long size;
|
---|
[1] | 760 |
|
---|
[128] | 761 | /*@ pointers ************************************************** */
|
---|
| 762 | FILE *fout;
|
---|
[1] | 763 |
|
---|
[128] | 764 | /*@ end vars *************************************************** */
|
---|
[1] | 765 |
|
---|
[128] | 766 | assert_string_is_neither_NULL_nor_zerolength(bkpinfo->media_device);
|
---|
[1392] | 767 | tapecatalog = mr_list_alloc();
|
---|
[128] | 768 | g_tape_posK = 0;
|
---|
| 769 | if (g_tape_stream) {
|
---|
| 770 | log_it("FYI - I won't 'openin' the tape. It's already open.");
|
---|
| 771 | return (0);
|
---|
| 772 | }
|
---|
[1977] | 773 |
|
---|
| 774 | // mondoarchive should have configured everything to give the right non-rew device
|
---|
| 775 | if ((bkpinfo->use_obdr) && (bkpinfo->media_device != NULL)) {
|
---|
| 776 | res = skip_obdr();
|
---|
| 777 | if (res != 0) {
|
---|
| 778 | log_it("Not able to skip OBDR - Restore will have to be done manually");
|
---|
| 779 | }
|
---|
| 780 | } else {
|
---|
| 781 | if (bkpinfo->media_device == NULL) {
|
---|
| 782 | log_it("Not able to skip OBDR - Restore will have to be done manually");
|
---|
| 783 | }
|
---|
| 784 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
| 785 | }
|
---|
| 786 |
|
---|
[128] | 787 | insist_on_this_tape_number(1);
|
---|
[1175] | 788 | mr_asprintf(&outfname, "%s/tmp/all.tar.gz", bkpinfo->tmpdir);
|
---|
[128] | 789 | make_hole_for_file(outfname);
|
---|
[1] | 790 |
|
---|
[128] | 791 | log_it("Opening IN tape");
|
---|
| 792 | if (!
|
---|
| 793 | (g_tape_stream =
|
---|
| 794 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 795 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 796 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 797 | return (1);
|
---|
| 798 | }
|
---|
[1175] | 799 | log_to_screen(_("Reading stream"));
|
---|
[128] | 800 | log_it("stream device = '%s'", bkpinfo->media_device);
|
---|
[1175] | 801 | /* skip data disks */
|
---|
[128] | 802 | open_evalcall_form("Skipping data disks on stream");
|
---|
[1175] | 803 | log_to_screen(_("Skipping data disks on stream"));
|
---|
[128] | 804 | if (!(fout = fopen(outfname, "w"))) {
|
---|
| 805 | log_OS_error(outfname);
|
---|
[1175] | 806 | log_to_screen(_("Cannot openout datadisk all.tar.gz file"));
|
---|
[128] | 807 | return (-1);
|
---|
[1] | 808 | }
|
---|
[1080] | 809 | datablock = (char *) mr_malloc(256 * 1024);
|
---|
[128] | 810 | for (i = 0; i < 32; i++) {
|
---|
| 811 | for (j = 0; j < 4; j++) {
|
---|
| 812 | for (length = 0, k = 0; length < 256 * 1024; length += k) {
|
---|
| 813 | k = fread(datablock + length, 1, 256 * 1024 - length,
|
---|
| 814 | g_tape_stream);
|
---|
| 815 | }
|
---|
| 816 | (void) fwrite(datablock, 1, (size_t) length, fout);
|
---|
| 817 | g_tape_posK += length / 1024;
|
---|
| 818 | }
|
---|
| 819 | if (i > 8) // otherwise, 'buffer' distorts calculations
|
---|
| 820 | {
|
---|
| 821 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 822 | update_evalcall_form((int) (templong));
|
---|
| 823 | }
|
---|
| 824 | }
|
---|
| 825 | paranoid_fclose(fout);
|
---|
[1080] | 826 | mr_free(datablock);
|
---|
[1175] | 827 | /* find initial blocks */
|
---|
[128] | 828 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
| 829 | retval += res;
|
---|
| 830 | if (ctrl_chr != BLK_START_OF_TAPE) {
|
---|
| 831 | wrong_marker(BLK_START_OF_TAPE, ctrl_chr);
|
---|
| 832 | }
|
---|
| 833 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
| 834 | retval += res;
|
---|
| 835 | if (ctrl_chr != BLK_START_OF_BACKUP) {
|
---|
| 836 | wrong_marker(BLK_START_OF_BACKUP, ctrl_chr);
|
---|
| 837 | }
|
---|
| 838 | close_evalcall_form();
|
---|
| 839 | log_it("Saved all.tar.gz to '%s'", outfname);
|
---|
| 840 | (void) getcwd(old_cwd, MAX_STR_LEN);
|
---|
| 841 | chdir(bkpinfo->tmpdir);
|
---|
[1924] | 842 | mr_asprintf(&tmp, "tar -zxf %s ./tmp/mondo-restore.cfg 2> /dev/null",
|
---|
[1175] | 843 | outfname);
|
---|
[128] | 844 | paranoid_system(tmp);
|
---|
[1175] | 845 | mr_free(tmp);
|
---|
[128] | 846 | paranoid_system("cp -f tmp/mondo-restore.cfg . 2> /dev/null");
|
---|
| 847 | chdir(old_cwd);
|
---|
| 848 | unlink(outfname);
|
---|
[1175] | 849 | mr_free(outfname);
|
---|
[128] | 850 | return (retval);
|
---|
[1] | 851 | }
|
---|
| 852 |
|
---|
| 853 |
|
---|
| 854 | /**
|
---|
| 855 | * Start writing to a CD stream.
|
---|
| 856 | * @param cddev The CD device to openout via cdrecord.
|
---|
| 857 | * @param speed The speed to write at.
|
---|
| 858 | * @return 0 for success, nonzero for failure.
|
---|
| 859 | * @note This should be called only from backup processes.
|
---|
| 860 | */
|
---|
[128] | 861 | int openout_cdstream(char *cddev, int speed)
|
---|
[1] | 862 | {
|
---|
[128] | 863 | /*@ buffers ***************************************************** */
|
---|
[1175] | 864 | char *command = NULL;
|
---|
[1] | 865 |
|
---|
[128] | 866 | /*@ end vars *************************************************** */
|
---|
[1] | 867 |
|
---|
[1175] | 868 | /* add 'dummy' if testing */
|
---|
| 869 | mr_asprintf(&command,
|
---|
| 870 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 871 | cddev, speed, MONDO_LOGFILE, MONDO_LOGFILE);
|
---|
| 872 | /* initialise the catalog */
|
---|
[128] | 873 | g_current_media_number = 1;
|
---|
[1392] | 874 | tapecatalog = mr_list_alloc();
|
---|
[1175] | 875 | /* log stuff */
|
---|
[128] | 876 | log_it("Opening OUT cdstream with the command");
|
---|
| 877 | log_it(command);
|
---|
[1175] | 878 | /* log_it("Let's see what happens, shall we?"); */
|
---|
[128] | 879 | g_tape_stream = popen(command, "w");
|
---|
[1175] | 880 | mr_free(command);
|
---|
[128] | 881 | if (g_tape_stream) {
|
---|
| 882 | return (0);
|
---|
| 883 | } else {
|
---|
[1175] | 884 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[128] | 885 | return (1);
|
---|
| 886 | }
|
---|
[1] | 887 | }
|
---|
| 888 |
|
---|
[1175] | 889 |
|
---|
[1] | 890 | /**
|
---|
| 891 | * Start writing to a tape device for the backup.
|
---|
[1977] | 892 | * Handle OBDR if we were asked to do so
|
---|
[1] | 893 | * @param tapedev The tape device to open for writing.
|
---|
| 894 | * @return 0 for success, nonzero for failure.
|
---|
| 895 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
| 896 | * EXISTING DATA on the tape!
|
---|
| 897 | */
|
---|
[1977] | 898 | int openout_tape() {
|
---|
| 899 |
|
---|
[128] | 900 | g_current_media_number = 1;
|
---|
| 901 | if (g_tape_stream) {
|
---|
| 902 | log_it("FYI - I won't 'openout' the tape. It's already open.");
|
---|
| 903 | return (0);
|
---|
| 904 | }
|
---|
[1392] | 905 | tapecatalog = mr_list_alloc();
|
---|
[128] | 906 | g_tape_posK = 0;
|
---|
| 907 |
|
---|
[1977] | 908 | if (bkpinfo->use_obdr) {
|
---|
| 909 | create_obdr();
|
---|
| 910 | } else {
|
---|
| 911 | set_tape_block_size_with_mt(bkpinfo->internal_tape_block_size);
|
---|
| 912 | }
|
---|
[128] | 913 | log_it("Opening OUT tape");
|
---|
| 914 | if (!
|
---|
| 915 | (g_tape_stream =
|
---|
[1977] | 916 | open_device_via_buffer(bkpinfo->media_device, 'w', internal_tape_block_size))) {
|
---|
[1175] | 917 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 918 | return (1);
|
---|
| 919 | }
|
---|
| 920 | return (0);
|
---|
[1] | 921 | }
|
---|
| 922 |
|
---|
| 923 |
|
---|
| 924 | /**
|
---|
| 925 | * Copy a file from the opened stream (CD or tape) to @p outfile.
|
---|
| 926 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 927 | * @param outfile The file to write to.
|
---|
| 928 | * @param size The size of the file in the input stream.
|
---|
| 929 | * @return 0 for success, nonzero for failure.
|
---|
| 930 | */
|
---|
| 931 | int
|
---|
[1663] | 932 | read_file_from_stream_to_file(char *outfile, long long size)
|
---|
[1] | 933 | {
|
---|
| 934 |
|
---|
[128] | 935 | /*@ int ******************************************************** */
|
---|
| 936 | int res;
|
---|
[1] | 937 |
|
---|
[128] | 938 | /*@ end vars *************************************************** */
|
---|
[1] | 939 |
|
---|
[1663] | 940 | res = read_file_from_stream_FULL(outfile, NULL, size);
|
---|
[1] | 941 |
|
---|
[128] | 942 | return (res);
|
---|
[1] | 943 | }
|
---|
| 944 |
|
---|
| 945 |
|
---|
| 946 | /**
|
---|
| 947 | * Copy a file from the currently opened stream (CD or tape) to the stream indicated
|
---|
| 948 | * by @p fout.
|
---|
| 949 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 950 | * @param fout The stream to write the file to.
|
---|
| 951 | * @param size The size of the file in bytes.
|
---|
| 952 | * @return 0 for success, nonzero for failure.
|
---|
| 953 | */
|
---|
| 954 | int
|
---|
[1663] | 955 | read_file_from_stream_to_stream(FILE * fout, long long size)
|
---|
[1] | 956 | {
|
---|
| 957 |
|
---|
[128] | 958 | /*@ int ******************************************************** */
|
---|
| 959 | int res;
|
---|
[1] | 960 |
|
---|
[128] | 961 | /*@ end vars *************************************************** */
|
---|
[1] | 962 |
|
---|
[1663] | 963 | res = read_file_from_stream_FULL(NULL, fout, size);
|
---|
[128] | 964 | return (res);
|
---|
[1] | 965 | }
|
---|
| 966 |
|
---|
| 967 |
|
---|
| 968 | /**
|
---|
| 969 | * Copy a file from the currently opened stream (CD or tape) to either a
|
---|
| 970 | * @c FILE pointer indicating a currently-opened file, or a filename indicating
|
---|
| 971 | * a new file to create. This is the backbone function that read_file_from_stream_to_file()
|
---|
| 972 | * and read_file_from_stream_to_stream() are wrappers for.
|
---|
| 973 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 974 | * @param outfname If non-NULL, write to this file.
|
---|
| 975 | * @param foutstream If non-NULL, write to this stream.
|
---|
| 976 | * @param orig_size The original length of the file in bytes.
|
---|
| 977 | * @return 0 for success, nonzero for failure.
|
---|
| 978 | * @note Only @b one of @p outfname or @p foutstream may be non-NULL.
|
---|
| 979 | */
|
---|
| 980 | int
|
---|
[1663] | 981 | read_file_from_stream_FULL(char *outfname, FILE * foutstream, long long orig_size)
|
---|
[1] | 982 | {
|
---|
[128] | 983 | /*@ buffers ***************************************************** */
|
---|
[1175] | 984 | char *tmp = NULL;
|
---|
| 985 | char *datablock = NULL;
|
---|
[128] | 986 | char *temp_fname;
|
---|
| 987 | char *temp_cksum;
|
---|
[1175] | 988 | char *actual_cksum = NULL;
|
---|
[1] | 989 |
|
---|
[128] | 990 | /*@ int ********************************************************* */
|
---|
| 991 | int retval = 0;
|
---|
[1] | 992 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 993 | int i, ch;
|
---|
[1] | 994 | #endif
|
---|
[128] | 995 | int noof_blocks;
|
---|
| 996 | int ctrl_chr;
|
---|
| 997 | int res;
|
---|
| 998 | /*@ pointers **************************************************** */
|
---|
| 999 | FILE *fout;
|
---|
[1] | 1000 |
|
---|
[128] | 1001 | /*@ long ***************************************************** */
|
---|
[1904] | 1002 | long bytes_to_write = 0L;
|
---|
[1] | 1003 |
|
---|
[128] | 1004 | /*@ long long *************************************************** */
|
---|
| 1005 | long long temp_size, size;
|
---|
| 1006 | long bytes_read, bytes_to_read;
|
---|
| 1007 | long long total_read_from_tape_for_this_file = 0;
|
---|
| 1008 | long long where_I_was_before_tape_change = 0;
|
---|
| 1009 | /*@ unsigned int ************************************************ */
|
---|
| 1010 | unsigned int crc16;
|
---|
| 1011 | unsigned int crctt;
|
---|
[1] | 1012 |
|
---|
[128] | 1013 | bool had_to_resync = FALSE;
|
---|
[1] | 1014 |
|
---|
[128] | 1015 | /*@ init ******************************************************* */
|
---|
| 1016 | malloc_string(temp_fname);
|
---|
| 1017 | malloc_string(temp_cksum);
|
---|
[1638] | 1018 | datablock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[128] | 1019 | crc16 = 0;
|
---|
| 1020 | crctt = 0;
|
---|
| 1021 | size = orig_size;
|
---|
[1] | 1022 |
|
---|
[128] | 1023 | /*@ end vars *************************************************** */
|
---|
[1] | 1024 |
|
---|
[128] | 1025 | res = read_header_block_from_stream(&temp_size, temp_fname, &ctrl_chr);
|
---|
| 1026 | if (orig_size != temp_size && orig_size != -1) {
|
---|
[1175] | 1027 | mr_asprintf(&tmp,
|
---|
| 1028 | "output file's size should be %ld K but is apparently %ld K",
|
---|
| 1029 | (long) size >> 10, (long) temp_size >> 10);
|
---|
[128] | 1030 | log_to_screen(tmp);
|
---|
[1175] | 1031 | mr_free(tmp);
|
---|
[128] | 1032 | }
|
---|
| 1033 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 1034 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1035 | return (1);
|
---|
| 1036 | }
|
---|
[1903] | 1037 | /* Not used
|
---|
[1175] | 1038 | mr_asprintf(&tmp, "Reading file from tape; writing to '%s'; %ld KB",
|
---|
| 1039 | outfname, (long) size >> 10);
|
---|
[1903] | 1040 | */
|
---|
[1] | 1041 |
|
---|
[128] | 1042 | if (foutstream) {
|
---|
| 1043 | fout = foutstream;
|
---|
| 1044 | } else {
|
---|
| 1045 | fout = fopen(outfname, "w");
|
---|
[1] | 1046 | }
|
---|
[128] | 1047 | if (!fout) {
|
---|
| 1048 | log_OS_error(outfname);
|
---|
[1175] | 1049 | log_to_screen(_("Cannot openout file"));
|
---|
[128] | 1050 | return (1);
|
---|
| 1051 | }
|
---|
| 1052 | total_read_from_tape_for_this_file = 0;
|
---|
| 1053 | for (noof_blocks = 0; size > 0;
|
---|
| 1054 | noof_blocks++, size -=
|
---|
| 1055 | bytes_to_write, total_read_from_tape_for_this_file +=
|
---|
| 1056 | bytes_read) {
|
---|
| 1057 | bytes_to_write =
|
---|
[1638] | 1058 | (size < mr_conf->external_tape_blocksize) ? (long) size : mr_conf->external_tape_blocksize;
|
---|
| 1059 | bytes_to_read = mr_conf->external_tape_blocksize;
|
---|
[128] | 1060 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 1061 | while (bytes_read < bytes_to_read) { // next tape!
|
---|
| 1062 | // crctt=crc16=0;
|
---|
| 1063 | where_I_was_before_tape_change = size;
|
---|
[1107] | 1064 | mr_msg(4, "where_I_was_... = %lld",
|
---|
[128] | 1065 | where_I_was_before_tape_change);
|
---|
[1663] | 1066 | start_to_read_from_next_tape();
|
---|
[1107] | 1067 | mr_msg(4, "Started reading from next tape.");
|
---|
[128] | 1068 | skip_incoming_files_until_we_find_this_one(temp_fname);
|
---|
[1107] | 1069 | mr_msg(4, "Skipped irrelevant files OK.");
|
---|
[128] | 1070 | for (size = orig_size; size > where_I_was_before_tape_change;
|
---|
| 1071 | size -= bytes_to_write) {
|
---|
| 1072 | bytes_read =
|
---|
| 1073 | fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 1074 | }
|
---|
[1107] | 1075 | mr_msg(4, "'size' is now %lld (should be %lld)", size,
|
---|
[128] | 1076 | where_I_was_before_tape_change);
|
---|
| 1077 | log_to_screen("Successfully re-sync'd tape");
|
---|
| 1078 | had_to_resync = TRUE;
|
---|
| 1079 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 1080 | }
|
---|
[1] | 1081 |
|
---|
[128] | 1082 | (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] | 1083 |
|
---|
| 1084 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1085 | for (i = 0; i < (int) bytes_to_write; i++) {
|
---|
| 1086 | ch = datablock[i];
|
---|
| 1087 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 1088 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 1089 | }
|
---|
[1] | 1090 | #endif
|
---|
[128] | 1091 | }
|
---|
[1107] | 1092 | mr_msg(6, "Total read from tape for this file = %lld",
|
---|
[128] | 1093 | total_read_from_tape_for_this_file);
|
---|
[1107] | 1094 | mr_msg(6, ".......................... Should be %lld", orig_size);
|
---|
[128] | 1095 | g_tape_posK += total_read_from_tape_for_this_file / 1024;
|
---|
[1175] | 1096 | mr_asprintf(&actual_cksum, "%04x%04x", crc16, crctt);
|
---|
[128] | 1097 | if (foutstream) { /*log_it("Finished writing to foutstream"); */
|
---|
| 1098 | } else {
|
---|
| 1099 | paranoid_fclose(fout);
|
---|
| 1100 | }
|
---|
| 1101 | res = read_header_block_from_stream(&temp_size, temp_cksum, &ctrl_chr);
|
---|
| 1102 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 1103 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
[1] | 1104 | // fatal_error("Bad marker"); // return(1);
|
---|
[128] | 1105 | }
|
---|
| 1106 | if (strcmp(temp_cksum, actual_cksum)) {
|
---|
[1175] | 1107 | mr_asprintf(&tmp, _("actual cksum=%s; recorded cksum=%s"), actual_cksum,
|
---|
| 1108 | temp_cksum);
|
---|
[128] | 1109 | log_to_screen(tmp);
|
---|
[1175] | 1110 | mr_free(tmp);
|
---|
| 1111 |
|
---|
| 1112 | mr_asprintf(&tmp, _("%s (%ld K) is corrupt on tape"), temp_fname,
|
---|
| 1113 | (long) orig_size >> 10);
|
---|
[128] | 1114 | log_to_screen(tmp);
|
---|
[1175] | 1115 | mr_free(tmp);
|
---|
[128] | 1116 | retval++;
|
---|
| 1117 | }
|
---|
[1175] | 1118 | mr_free(actual_cksum);
|
---|
[1080] | 1119 | mr_free(datablock);
|
---|
| 1120 | mr_free(temp_fname);
|
---|
| 1121 | mr_free(temp_cksum);
|
---|
[128] | 1122 | return (retval);
|
---|
[1] | 1123 | }
|
---|
| 1124 |
|
---|
| 1125 |
|
---|
| 1126 | /**
|
---|
| 1127 | * Read a header block from the currently opened stream (CD or tape).
|
---|
| 1128 | * This block indicates the length of the following file (if it's file-related)
|
---|
| 1129 | * the filename (if it's file-related), and the block type.
|
---|
| 1130 | * @param plen Where to put the length of the file. Valid only for file-related header blocks.
|
---|
| 1131 | * @param filename Where to put the name of the file. Valid only for file-related header blocks.
|
---|
| 1132 | * @param pcontrol_char Where to put the type of block (e.g. start-file, end-file, start-tape, ...)
|
---|
| 1133 | * @return 0 for success, nonzero for failure.
|
---|
| 1134 | * @note If you read a marker (@p pcontrol_char) you're not expecting, you can call wrong_marker().
|
---|
| 1135 | */
|
---|
| 1136 | int
|
---|
[128] | 1137 | read_header_block_from_stream(long long *plen, char *filename,
|
---|
| 1138 | int *pcontrol_char)
|
---|
[1] | 1139 | {
|
---|
| 1140 |
|
---|
[128] | 1141 | /*@ buffers ***************************************************** */
|
---|
| 1142 | char *tempblock;
|
---|
[1] | 1143 |
|
---|
[128] | 1144 | /*@ int ********************************************************* */
|
---|
| 1145 | int i, retval;
|
---|
[1] | 1146 |
|
---|
[128] | 1147 | /*@ end vars *************************************************** */
|
---|
[1] | 1148 |
|
---|
[1638] | 1149 | tempblock = (char *) mr_malloc((size_t) mr_conf->external_tape_blocksize);
|
---|
[1] | 1150 |
|
---|
[1638] | 1151 | for (i = 0; i < (int) mr_conf->external_tape_blocksize; i++) {
|
---|
[128] | 1152 | tempblock[i] = 0;
|
---|
| 1153 | }
|
---|
| 1154 | while (!(*pcontrol_char = tempblock[7000])) {
|
---|
| 1155 | g_tape_posK +=
|
---|
[1638] | 1156 | fread(tempblock, 1, (size_t) mr_conf->external_tape_blocksize,
|
---|
[128] | 1157 | g_tape_stream) / 1024;
|
---|
| 1158 | }
|
---|
| 1159 | memcpy((char *) plen, tempblock + 7001, sizeof(long long));
|
---|
[1939] | 1160 | if (strcmp(tempblock + 6000 + *pcontrol_char, STR_HEADER)) {
|
---|
[128] | 1161 | log_it("Bad header block at %ld K", (long) g_tape_posK);
|
---|
| 1162 | }
|
---|
| 1163 | strcpy(filename, tempblock + 1000);
|
---|
| 1164 | if (*pcontrol_char == BLK_ABORTED_BACKUP) {
|
---|
| 1165 | log_to_screen("I can't verify an aborted backup.");
|
---|
| 1166 | retval = 1;
|
---|
| 1167 | } else {
|
---|
| 1168 | retval = 0;
|
---|
| 1169 | }
|
---|
| 1170 | for (i = 1000; i < 1020; i++) {
|
---|
| 1171 | if (tempblock[i] < 32 || tempblock[i] > 126) {
|
---|
| 1172 | tempblock[i] = ' ';
|
---|
| 1173 | }
|
---|
| 1174 | }
|
---|
| 1175 | tempblock[i] = '\0';
|
---|
[1107] | 1176 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
[128] | 1177 | marker_to_string(*pcontrol_char), tempblock + 1000,
|
---|
| 1178 | (long) (*plen) >> 10);
|
---|
[1080] | 1179 | mr_free(tempblock);
|
---|
[128] | 1180 | return (retval);
|
---|
[1] | 1181 | }
|
---|
| 1182 |
|
---|
| 1183 |
|
---|
| 1184 | /**
|
---|
| 1185 | * Add specified file/slice to the internal catalog of all archives written.
|
---|
| 1186 | * This lets us restart on a new CD/tape/whatever if it runs out of room. We just
|
---|
| 1187 | * write the last [buffer size] MB from the catalog to the new tape, so we know
|
---|
| 1188 | * we have @e all archives on some CD/tape/whatever.
|
---|
| 1189 | * @param type The type of file we're cataloging (afioball, slice, something else)
|
---|
| 1190 | * @param number The fileset number or biggiefile number.
|
---|
| 1191 | * @param aux The slice number if it's a biggiefile, or any other additional info.
|
---|
| 1192 | * @param fn The original full pathname of the file we're recording.
|
---|
| 1193 | * @return The index of the record we just added.
|
---|
| 1194 | */
|
---|
[128] | 1195 | int register_in_tape_catalog(t_archtype type, int number, long aux,
|
---|
| 1196 | char *fn)
|
---|
[1] | 1197 | {
|
---|
[1362] | 1198 | char *fname = NULL;
|
---|
| 1199 | char *p = NULL;
|
---|
| 1200 | struct s_tapecat_entry *te = NULL;
|
---|
| 1201 | struct mr_list_elt *elt = NULL;
|
---|
[1] | 1202 |
|
---|
[128] | 1203 | p = strrchr(fn, '/');
|
---|
| 1204 | if (p) {
|
---|
| 1205 | p++;
|
---|
| 1206 | } else {
|
---|
| 1207 | p = fn;
|
---|
| 1208 | }
|
---|
[1362] | 1209 | mr_asprintf(&fname, p);
|
---|
| 1210 |
|
---|
| 1211 | te = (struct s_tapecat_entry *)mr_malloc(sizeof(struct s_tapecat_entry));
|
---|
| 1212 | te->type = type;
|
---|
| 1213 | te->number = number;
|
---|
| 1214 | te->aux = aux;
|
---|
| 1215 | te->tape_posK = g_tape_posK;
|
---|
| 1216 | /* BERLIOS: Check if this is written womewhere, as it's only a pointer */
|
---|
| 1217 | /* BERLIOS: Verify to purge fname correctly */
|
---|
| 1218 | te->fname = fname;
|
---|
| 1219 |
|
---|
| 1220 | /* place the data in a list elt */
|
---|
[1392] | 1221 | elt = mr_list_alloc_elt((void *)te, mr_free_te);
|
---|
[1370] | 1222 | mr_list_add_elt_last(tapecatalog, elt);
|
---|
[1362] | 1223 |
|
---|
| 1224 | // returns the index of the record we've just added
|
---|
[1369] | 1225 | return (mr_list_length(tapecatalog));
|
---|
[1] | 1226 | }
|
---|
| 1227 |
|
---|
| 1228 |
|
---|
| 1229 | /**
|
---|
| 1230 | * Decide whether we should start a new tape. This is TRUE if we've run out of tape
|
---|
| 1231 | * (got SIGPIPE) or look like we will.
|
---|
| 1232 | * @param mediasize The size of the tape in megabytes.
|
---|
| 1233 | * @param length_of_incoming_file The length of the file we're about to write, in bytes.
|
---|
| 1234 | * @bug This seems like it'll only work for media_size != autodetect, but Mondo only allows
|
---|
| 1235 | * autodetecting the size. Huh?
|
---|
| 1236 | */
|
---|
[684] | 1237 |
|
---|
| 1238 | /* BERLIOS: Should be reviewed for mediasize being a off_t ??? */
|
---|
[1] | 1239 | bool
|
---|
[128] | 1240 | should_we_write_to_next_tape(long mediasize,
|
---|
[684] | 1241 | off_t length_of_incoming_file)
|
---|
[1] | 1242 | {
|
---|
[128] | 1243 | /*@ bool's ***************************************************** */
|
---|
| 1244 | bool we_need_a_new_tape = FALSE;
|
---|
[1] | 1245 |
|
---|
[128] | 1246 | /*@ end vars *************************************************** */
|
---|
[1] | 1247 |
|
---|
[128] | 1248 | if (mediasize == 0) {
|
---|
| 1249 | return (FALSE);
|
---|
| 1250 | }
|
---|
| 1251 | if (mediasize > 0 && (g_tape_posK >> 10 >= mediasize)) {
|
---|
| 1252 | log_it("mediasize = %ld", mediasize);
|
---|
| 1253 | we_need_a_new_tape = TRUE;
|
---|
[1175] | 1254 | log_to_screen(_("Should have started a new tape/CD already"));
|
---|
[128] | 1255 | }
|
---|
| 1256 | if ((g_tape_posK + length_of_incoming_file / 1024) >> 10 >=
|
---|
[1639] | 1257 | mediasize - 16) { /* 4096(old SLICE_SIZE) * 4 / 1024) */
|
---|
[128] | 1258 | log_it("g_tape_posK = %ld\nmediasize = %ld\n", g_tape_posK,
|
---|
| 1259 | mediasize);
|
---|
| 1260 | we_need_a_new_tape = TRUE;
|
---|
| 1261 | }
|
---|
| 1262 | return (we_need_a_new_tape);
|
---|
[1] | 1263 | }
|
---|
| 1264 |
|
---|
| 1265 |
|
---|
| 1266 | /**
|
---|
| 1267 | * Seek through the stream until we find a header block where the NAME field matches
|
---|
| 1268 | * @p the_file_I_was_reading. This is useful if you've just started reading from
|
---|
| 1269 | * a new tape and want to find the file you were reading when the tape ended.
|
---|
| 1270 | * @param the_file_I_was_reading File name to look for.
|
---|
| 1271 | * @return 0 for success, nonzero for failure.
|
---|
| 1272 | */
|
---|
[128] | 1273 | int skip_incoming_files_until_we_find_this_one(char
|
---|
| 1274 | *the_file_I_was_reading)
|
---|
[1] | 1275 | {
|
---|
[128] | 1276 | char *pA;
|
---|
| 1277 | char *pB;
|
---|
| 1278 | int res;
|
---|
| 1279 | int ctrl_chr;
|
---|
| 1280 | char *temp_fname;
|
---|
| 1281 | char *datablock;
|
---|
| 1282 | long long temp_size, size;
|
---|
| 1283 | long bytes_to_write;
|
---|
[1] | 1284 |
|
---|
[1638] | 1285 | datablock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[128] | 1286 | malloc_string(temp_fname);
|
---|
| 1287 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1288 | if (pB) {
|
---|
| 1289 | pB++;
|
---|
| 1290 | } else {
|
---|
| 1291 | pB = the_file_I_was_reading;
|
---|
[1] | 1292 | }
|
---|
[1107] | 1293 | mr_msg(1, "skip_incoming_..(%s)", pB);
|
---|
| 1294 | mr_msg(2, "Looking for initial START_AN_AFIO_OR_SLICE");
|
---|
[128] | 1295 | ctrl_chr = -1;
|
---|
| 1296 | while (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1297 | res =
|
---|
| 1298 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1299 | &ctrl_chr);
|
---|
| 1300 | if (ctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1301 | break;
|
---|
| 1302 | }
|
---|
[1107] | 1303 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[128] | 1304 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
[1107] | 1305 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[128] | 1306 | }
|
---|
| 1307 | while (ctrl_chr != BLK_START_FILE) {
|
---|
| 1308 | res =
|
---|
| 1309 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1310 | &ctrl_chr);
|
---|
| 1311 | if (ctrl_chr == BLK_START_FILE) {
|
---|
| 1312 | break;
|
---|
| 1313 | }
|
---|
[1107] | 1314 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[128] | 1315 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
[1107] | 1316 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[128] | 1317 | }
|
---|
| 1318 | pA = strrchr(temp_fname, '/');
|
---|
| 1319 | if (pA) {
|
---|
| 1320 | pA++;
|
---|
| 1321 | } else {
|
---|
| 1322 | pA = temp_fname;
|
---|
| 1323 | }
|
---|
| 1324 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1325 | if (pB) {
|
---|
| 1326 | pB++;
|
---|
| 1327 | } else {
|
---|
| 1328 | pB = the_file_I_was_reading;
|
---|
| 1329 | }
|
---|
| 1330 | while (strcmp(pA, pB)) {
|
---|
[1107] | 1331 | mr_msg(6, "Skipping %s (it's not %s)", temp_fname,
|
---|
[128] | 1332 | the_file_I_was_reading);
|
---|
| 1333 | for (size = temp_size; size > 0; size -= bytes_to_write) {
|
---|
| 1334 | bytes_to_write =
|
---|
[1638] | 1335 | (size < mr_conf->external_tape_blocksize) ? (long) size : mr_conf->external_tape_blocksize;
|
---|
[128] | 1336 | // FIXME - needs error-checking and -catching
|
---|
[1638] | 1337 | fread(datablock, 1, (size_t) mr_conf->external_tape_blocksize, g_tape_stream);
|
---|
[128] | 1338 | }
|
---|
| 1339 | res =
|
---|
| 1340 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1341 | &ctrl_chr);
|
---|
| 1342 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 1343 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
| 1344 | }
|
---|
| 1345 | res =
|
---|
| 1346 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1347 | &ctrl_chr);
|
---|
| 1348 | if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
|
---|
| 1349 | wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1350 | }
|
---|
| 1351 | res =
|
---|
| 1352 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1353 | &ctrl_chr);
|
---|
| 1354 | if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1355 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1356 | }
|
---|
| 1357 | res =
|
---|
| 1358 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1359 | &ctrl_chr);
|
---|
| 1360 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 1361 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1362 | }
|
---|
| 1363 | pA = strrchr(temp_fname, '/');
|
---|
| 1364 | if (pA) {
|
---|
| 1365 | pA++;
|
---|
| 1366 | } else {
|
---|
| 1367 | pA = temp_fname;
|
---|
| 1368 | }
|
---|
| 1369 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1370 | if (pB) {
|
---|
| 1371 | pB++;
|
---|
| 1372 | } else {
|
---|
| 1373 | pB = the_file_I_was_reading;
|
---|
| 1374 | }
|
---|
| 1375 | }
|
---|
[1107] | 1376 | mr_msg(2, "Reading %s (it matches %s)", temp_fname,
|
---|
[128] | 1377 | the_file_I_was_reading);
|
---|
[1080] | 1378 | mr_free(temp_fname);
|
---|
| 1379 | mr_free(datablock);
|
---|
[128] | 1380 | return (0);
|
---|
[1] | 1381 | }
|
---|
| 1382 |
|
---|
| 1383 |
|
---|
| 1384 | /**
|
---|
| 1385 | * Start to read from the next tape. Assumes the user has already inserted it.
|
---|
| 1386 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1387 | * @return 0 for success, nonzero for failure.
|
---|
| 1388 | */
|
---|
[1663] | 1389 | int start_to_read_from_next_tape()
|
---|
[1] | 1390 | {
|
---|
[128] | 1391 | /*@ int ********************************************************* */
|
---|
| 1392 | int res = 0;
|
---|
| 1393 | char *sz_msg;
|
---|
| 1394 | int ctrlchr;
|
---|
| 1395 | long long temp_size;
|
---|
| 1396 | malloc_string(sz_msg);
|
---|
| 1397 | /*@ end vars *************************************************** */
|
---|
[1] | 1398 |
|
---|
[128] | 1399 | paranoid_pclose(g_tape_stream);
|
---|
[1175] | 1400 | sync();
|
---|
| 1401 | sync();
|
---|
| 1402 | sync();
|
---|
[128] | 1403 | log_it("Next tape requested.");
|
---|
| 1404 | insist_on_this_tape_number(g_current_media_number + 1); // will increment it, too
|
---|
| 1405 | log_it("Opening IN the next tape");
|
---|
| 1406 | if (!
|
---|
| 1407 | (g_tape_stream =
|
---|
| 1408 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 1409 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 1410 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 1411 | return (1);
|
---|
| 1412 | }
|
---|
| 1413 | g_tape_posK = 0;
|
---|
| 1414 | g_sigpipe = FALSE;
|
---|
| 1415 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1416 | if (ctrlchr != BLK_START_OF_TAPE) {
|
---|
| 1417 | wrong_marker(BLK_START_OF_TAPE, ctrlchr);
|
---|
| 1418 | }
|
---|
| 1419 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1420 | if (ctrlchr != BLK_START_OF_BACKUP) {
|
---|
| 1421 | wrong_marker(BLK_START_OF_BACKUP, ctrlchr);
|
---|
| 1422 | } else {
|
---|
[1107] | 1423 | mr_msg(3, "Next tape opened OK. Whoopee!");
|
---|
[128] | 1424 | }
|
---|
[1080] | 1425 | mr_free(sz_msg);
|
---|
[128] | 1426 | return (res);
|
---|
[1] | 1427 | }
|
---|
| 1428 |
|
---|
| 1429 |
|
---|
| 1430 | /**
|
---|
| 1431 | * Start to write to the next tape. Assume the user has already inserted it.
|
---|
| 1432 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1433 | * @return 0 for success, nonzero for failure.
|
---|
| 1434 | */
|
---|
[1663] | 1435 | int start_to_write_to_next_tape()
|
---|
[1] | 1436 | {
|
---|
[128] | 1437 | int res = 0;
|
---|
[1175] | 1438 | char *command = NULL;
|
---|
| 1439 |
|
---|
[128] | 1440 | paranoid_pclose(g_tape_stream);
|
---|
[1175] | 1441 | sync();
|
---|
| 1442 | sync();
|
---|
| 1443 | sync();
|
---|
[128] | 1444 | log_it("New tape requested.");
|
---|
| 1445 | insist_on_this_tape_number(g_current_media_number + 1); // will increment g_current_media, too
|
---|
| 1446 | if (bkpinfo->backup_media_type == cdstream) {
|
---|
[1175] | 1447 | mr_asprintf(&command,
|
---|
| 1448 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
[1594] | 1449 | bkpinfo->iso_burning_dev, bkpinfo->writer_speed, MONDO_LOGFILE,
|
---|
[1175] | 1450 | MONDO_LOGFILE);
|
---|
[128] | 1451 | log_it("Opening OUT to next CD with the command");
|
---|
| 1452 | log_it(command);
|
---|
| 1453 | log_it("Let's see what happens, shall we?");
|
---|
| 1454 | g_tape_stream = popen(command, "w");
|
---|
[1175] | 1455 | mr_free(command);
|
---|
[128] | 1456 | if (!g_tape_stream) {
|
---|
[1175] | 1457 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[128] | 1458 | return (1);
|
---|
| 1459 | }
|
---|
| 1460 | } else {
|
---|
| 1461 | log_it("Opening OUT to next tape");
|
---|
| 1462 | if (!
|
---|
| 1463 | (g_tape_stream =
|
---|
| 1464 | open_device_via_buffer(bkpinfo->media_device, 'w',
|
---|
| 1465 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 1466 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 1467 | return (1);
|
---|
| 1468 | }
|
---|
[1] | 1469 | }
|
---|
[128] | 1470 | g_tape_posK = 0;
|
---|
| 1471 | g_sigpipe = FALSE;
|
---|
[684] | 1472 | res += write_header_block_to_stream((off_t)0, "start-of-tape", BLK_START_OF_TAPE); /* just in case */
|
---|
| 1473 | res += write_header_block_to_stream((off_t)0, "start-of-backup", BLK_START_OF_BACKUP); /* just in case */
|
---|
[128] | 1474 | return (res);
|
---|
[1] | 1475 | }
|
---|
| 1476 |
|
---|
| 1477 |
|
---|
| 1478 | /**
|
---|
| 1479 | * Write a bufferfull of the most recent archives to the tape. The
|
---|
| 1480 | * rationale behind this is a bit complex. If the previous tape ended
|
---|
| 1481 | * suddenly (EOF or otherwise) some archives were probably left in the
|
---|
| 1482 | * buffer. That means that Mondo thinks they have been written, but
|
---|
| 1483 | * the external binary @c buffer has not actually written them. So to
|
---|
| 1484 | * be safe, we start the new tape by writing the last bufferfull from
|
---|
| 1485 | * the old one. This insures that all archives will be on at least
|
---|
| 1486 | * one tape. Sounds inelegant, but it works.
|
---|
| 1487 | * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
|
---|
| 1488 | * @return 0 for success, nonzero for failure.
|
---|
| 1489 | */
|
---|
[1663] | 1490 | int write_backcatalog_to_tape()
|
---|
[1] | 1491 | {
|
---|
[1548] | 1492 | int res = 0;
|
---|
[1175] | 1493 | char *fname = NULL;
|
---|
[1362] | 1494 | struct mr_list_elt *elt = NULL;
|
---|
| 1495 | struct s_tapecat_entry *te = NULL;
|
---|
[1] | 1496 |
|
---|
[1107] | 1497 | mr_msg(2, "I am now writing back catalog to tape");
|
---|
[1369] | 1498 | elt = tapecatalog->first;
|
---|
[1362] | 1499 | while (elt != NULL) {
|
---|
| 1500 | te = (struct s_tapecat_entry *) elt->data;
|
---|
| 1501 | mr_asprintf(&fname, "%s/tmpfs/backcatalog/%s", bkpinfo->tmpdir, te->fname);
|
---|
[128] | 1502 | if (!does_file_exist(fname)) {
|
---|
[1107] | 1503 | mr_msg(6, "Can't write %s - it doesn't exist.", fname);
|
---|
[128] | 1504 | } else {
|
---|
| 1505 | write_header_block_to_stream(length_of_file(fname),
|
---|
| 1506 | "start-backcatalog-afio-or-slice",
|
---|
| 1507 | BLK_START_AN_AFIO_OR_SLICE);
|
---|
[1107] | 1508 | mr_msg(2, "Writing %s", fname);
|
---|
[1663] | 1509 | if (write_file_to_stream_from_file(fname)) {
|
---|
[128] | 1510 | res++;
|
---|
[1107] | 1511 | mr_msg(2, "%s failed", fname);
|
---|
[128] | 1512 | }
|
---|
[1549] | 1513 | if (elt != tapecatalog->last) {
|
---|
[684] | 1514 | write_header_block_to_stream((off_t)0,
|
---|
[128] | 1515 | "stop-backcatalog-afio-or-slice",
|
---|
| 1516 | BLK_STOP_AN_AFIO_OR_SLICE);
|
---|
| 1517 | }
|
---|
| 1518 | }
|
---|
[1175] | 1519 | mr_free(fname);
|
---|
[1362] | 1520 | elt = elt->next;
|
---|
[128] | 1521 | }
|
---|
[1107] | 1522 | mr_msg(2, "Finished writing back catalog to tape");
|
---|
[128] | 1523 | return (res);
|
---|
[1] | 1524 | }
|
---|
| 1525 |
|
---|
| 1526 |
|
---|
| 1527 | /**
|
---|
| 1528 | * Write all.tar.gz (produced by Mindi) to the first 32M of the first tape.
|
---|
| 1529 | * @param fname The path to all.tar.gz.
|
---|
| 1530 | * @return 0 for success, nonzero for failure.
|
---|
| 1531 | */
|
---|
[128] | 1532 | int write_data_disks_to_stream(char *fname)
|
---|
[1] | 1533 | {
|
---|
[128] | 1534 | /*@ pointers *************************************************** */
|
---|
[1175] | 1535 | FILE *fin = NULL;
|
---|
| 1536 | char *tmp = NULL;
|
---|
[1] | 1537 |
|
---|
[128] | 1538 | /*@ long ******************************************************* */
|
---|
| 1539 | long m = -1;
|
---|
| 1540 | long templong;
|
---|
[1] | 1541 |
|
---|
[128] | 1542 | /*@ int ******************************************************** */
|
---|
| 1543 | int i, j;
|
---|
[1] | 1544 |
|
---|
[128] | 1545 | /*@ buffers **************************************************** */
|
---|
| 1546 | char tempblock[256 * 1024];
|
---|
[1] | 1547 |
|
---|
[128] | 1548 | /*@ end vars *************************************************** */
|
---|
[1] | 1549 |
|
---|
[1175] | 1550 | open_evalcall_form(_("Writing data disks to tape"));
|
---|
| 1551 | log_to_screen(_("Writing data disks to tape"));
|
---|
[128] | 1552 | log_it("Data disks = %s", fname);
|
---|
| 1553 | if (!does_file_exist(fname)) {
|
---|
[1175] | 1554 | mr_asprintf(&tmp, _("Cannot find %s"), fname);
|
---|
[128] | 1555 | log_to_screen(tmp);
|
---|
[1175] | 1556 | mr_free(tmp);
|
---|
[128] | 1557 | return (1);
|
---|
[1] | 1558 | }
|
---|
[128] | 1559 | if (!(fin = fopen(fname, "r"))) {
|
---|
| 1560 | log_OS_error(fname);
|
---|
| 1561 | fatal_error("Cannot openin the data disk");
|
---|
| 1562 | }
|
---|
| 1563 | for (i = 0; i < 32; i++) { /* 32MB */
|
---|
| 1564 | for (j = 0; j < 4; j++) { /* 256K x 4 = 1MB (1024K) */
|
---|
| 1565 | if (!feof(fin)) {
|
---|
| 1566 | m = (long) fread(tempblock, 1, 256 * 1024, fin);
|
---|
| 1567 | } else {
|
---|
| 1568 | m = 0;
|
---|
| 1569 | }
|
---|
| 1570 | for (; m < 256 * 1024; m++) {
|
---|
| 1571 | tempblock[m] = '\0';
|
---|
| 1572 | }
|
---|
| 1573 | g_tape_posK +=
|
---|
| 1574 | fwrite(tempblock, 1, 256 * 1024, g_tape_stream) / 1024;
|
---|
| 1575 | }
|
---|
| 1576 | if (i > g_tape_buffer_size_MB) // otherwise, 'buffer' distorts calculations
|
---|
| 1577 | {
|
---|
| 1578 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 1579 | update_evalcall_form((int) (templong));
|
---|
| 1580 | }
|
---|
| 1581 | }
|
---|
| 1582 | paranoid_fclose(fin);
|
---|
| 1583 | close_evalcall_form();
|
---|
| 1584 | return (0);
|
---|
[1] | 1585 | }
|
---|
| 1586 |
|
---|
| 1587 |
|
---|
| 1588 | /**
|
---|
| 1589 | * Copy @p infile to the opened stream (CD or tape).
|
---|
| 1590 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 1591 | * @param infile The file to write to the stream.
|
---|
| 1592 | * @return 0 for success, nonzero for failure.
|
---|
| 1593 | */
|
---|
[1663] | 1594 | int write_file_to_stream_from_file(char *infile)
|
---|
[1] | 1595 | {
|
---|
[128] | 1596 | /*@ buffers **************************************************** */
|
---|
[1175] | 1597 | char *tmp = NULL;
|
---|
[1638] | 1598 | char *datablock = NULL;
|
---|
[1175] | 1599 | char *checksum = NULL;
|
---|
| 1600 | char *infile_basename = NULL;
|
---|
[1] | 1601 |
|
---|
[128] | 1602 | /*@ int ******************************************************** */
|
---|
| 1603 | int retval = 0;
|
---|
| 1604 | int noof_blocks;
|
---|
[1] | 1605 |
|
---|
[128] | 1606 | /* unsigned int ch; */
|
---|
| 1607 | unsigned int crc16;
|
---|
| 1608 | unsigned int crctt;
|
---|
[1] | 1609 |
|
---|
[128] | 1610 | /*@ pointers *************************************************** */
|
---|
| 1611 | FILE *fin;
|
---|
| 1612 | char *p;
|
---|
[1] | 1613 |
|
---|
[128] | 1614 | /*@ long ******************************************************* */
|
---|
| 1615 | long bytes_to_read = 0;
|
---|
| 1616 | long i;
|
---|
[1] | 1617 |
|
---|
[684] | 1618 | off_t filesize;
|
---|
[1] | 1619 |
|
---|
| 1620 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1621 | int ch;
|
---|
[1] | 1622 | #endif
|
---|
| 1623 |
|
---|
[128] | 1624 | /*@ initialize ************************************************ */
|
---|
| 1625 | crc16 = 0;
|
---|
| 1626 | crctt = 0;
|
---|
[1638] | 1627 | datablock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[1] | 1628 |
|
---|
[128] | 1629 | /*@ end vars *************************************************** */
|
---|
[1] | 1630 |
|
---|
[128] | 1631 | infile_basename = strrchr(infile, '/');
|
---|
| 1632 | if (infile_basename) {
|
---|
| 1633 | infile_basename++;
|
---|
| 1634 | } else {
|
---|
| 1635 | infile_basename = infile;
|
---|
| 1636 | }
|
---|
| 1637 | filesize = length_of_file(infile);
|
---|
| 1638 | if (should_we_write_to_next_tape
|
---|
[1365] | 1639 | (bkpinfo->media_size, filesize)) {
|
---|
[1663] | 1640 | start_to_write_to_next_tape();
|
---|
| 1641 | write_backcatalog_to_tape();
|
---|
[128] | 1642 | }
|
---|
| 1643 | p = strrchr(infile, '/');
|
---|
| 1644 | if (!p) {
|
---|
| 1645 | p = infile;
|
---|
| 1646 | } else {
|
---|
| 1647 | p++;
|
---|
| 1648 | }
|
---|
[1175] | 1649 | mr_asprintf(&tmp, "Writing file '%s' to tape (%ld KB)", p,
|
---|
| 1650 | (long) filesize >> 10);
|
---|
[128] | 1651 | log_it(tmp);
|
---|
[1175] | 1652 | mr_free(tmp);
|
---|
| 1653 |
|
---|
[128] | 1654 | write_header_block_to_stream(filesize, infile_basename,
|
---|
| 1655 | BLK_START_FILE);
|
---|
[1] | 1656 | //go_here_to_restart_saving_of_file:
|
---|
[128] | 1657 | if (!(fin = fopen(infile, "r"))) {
|
---|
| 1658 | log_OS_error(infile);
|
---|
| 1659 | return (1);
|
---|
[1] | 1660 | }
|
---|
[128] | 1661 | for (noof_blocks = 0; filesize > 0;
|
---|
| 1662 | noof_blocks++, filesize -= bytes_to_read) {
|
---|
[1638] | 1663 | if (filesize < mr_conf->external_tape_blocksize) {
|
---|
[128] | 1664 | bytes_to_read = (long) filesize;
|
---|
[1638] | 1665 | for (i = 0; i < mr_conf->external_tape_blocksize; i++) {
|
---|
[128] | 1666 | datablock[i] = '\0';
|
---|
| 1667 | }
|
---|
| 1668 | } else {
|
---|
[1638] | 1669 | bytes_to_read = mr_conf->external_tape_blocksize;
|
---|
[128] | 1670 | }
|
---|
| 1671 | (void) fread(datablock, 1, (size_t) bytes_to_read, fin);
|
---|
[1175] | 1672 | g_tape_posK += fwrite(datablock, 1, /*bytes_to_read */
|
---|
[1638] | 1673 | (size_t) mr_conf->external_tape_blocksize,
|
---|
[1175] | 1674 | g_tape_stream) / 1024;
|
---|
[128] | 1675 | if (g_sigpipe) {
|
---|
| 1676 | iamhere("Sigpipe occurred recently. I'll start a new tape.");
|
---|
| 1677 | fclose(fin);
|
---|
| 1678 | g_sigpipe = FALSE;
|
---|
[1663] | 1679 | start_to_write_to_next_tape();
|
---|
| 1680 | write_backcatalog_to_tape(); // kinda-sorta recursive :)
|
---|
[128] | 1681 | return (0);
|
---|
| 1682 | }
|
---|
[1] | 1683 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1684 | for (i = 0; i < bytes_to_read; i++) {
|
---|
| 1685 | ch = datablock[i];
|
---|
| 1686 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 1687 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 1688 | }
|
---|
[1] | 1689 | #endif
|
---|
[128] | 1690 | }
|
---|
[1638] | 1691 | paranoid_free(datablock);
|
---|
[128] | 1692 | paranoid_fclose(fin);
|
---|
[1175] | 1693 | mr_asprintf(&checksum, "%04x%04x", crc16, crctt);
|
---|
[684] | 1694 | /* BERLIOS: what does it do ??? */
|
---|
| 1695 | write_header_block_to_stream((off_t)g_current_media_number, checksum,
|
---|
[128] | 1696 | BLK_STOP_FILE);
|
---|
[1175] | 1697 | mr_free(checksum);
|
---|
[1] | 1698 | // log_it("File '%s' written to tape.", infile);
|
---|
[128] | 1699 | return (retval);
|
---|
[1] | 1700 | }
|
---|
| 1701 |
|
---|
| 1702 |
|
---|
| 1703 | /**
|
---|
| 1704 | * Write a header block to the opened stream (CD or tape).
|
---|
| 1705 | * @param length_of_incoming_file The length to store in the header block.
|
---|
| 1706 | * Usually matters only if this is a file-related header, in which case it should
|
---|
| 1707 | * be the length of the file that will follow.
|
---|
| 1708 | * @param filename The filename to store in the header block. Usually matters
|
---|
| 1709 | * only if this is a file-related header, in which case this should be the name
|
---|
| 1710 | * if the file that will follow.
|
---|
| 1711 | * @param control_char The type of header block this is (start-file, end-file, start-tape, ...)
|
---|
| 1712 | * @return 0 for success, nonzero for failure.
|
---|
| 1713 | */
|
---|
| 1714 | int
|
---|
[684] | 1715 | write_header_block_to_stream(off_t length_of_incoming_file,
|
---|
[128] | 1716 | char *filename, int control_char)
|
---|
[1] | 1717 | {
|
---|
[128] | 1718 | /*@ buffers **************************************************** */
|
---|
[1638] | 1719 | char *tempblock;
|
---|
[128] | 1720 | char *p;
|
---|
[1] | 1721 |
|
---|
[128] | 1722 | /*@ int ******************************************************** */
|
---|
| 1723 | int i;
|
---|
[1] | 1724 |
|
---|
[684] | 1725 | off_t olen;
|
---|
[1] | 1726 |
|
---|
[128] | 1727 | /*@ end vars *************************************************** */
|
---|
[1] | 1728 |
|
---|
[1638] | 1729 | tempblock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[1] | 1730 |
|
---|
[128] | 1731 | olen = length_of_incoming_file;
|
---|
| 1732 | p = strrchr(filename, '/'); /* Make 'em go, "Unnnh!" Oh wait, that was _Master_ P... */
|
---|
| 1733 | if (!p) {
|
---|
| 1734 | p = filename;
|
---|
| 1735 | } else {
|
---|
| 1736 | p++;
|
---|
| 1737 | }
|
---|
| 1738 | if (!g_tape_stream) {
|
---|
| 1739 | log_to_screen
|
---|
[1175] | 1740 | (_("You're not backing up to tape. Why write a tape header?"));
|
---|
[128] | 1741 | return (1);
|
---|
| 1742 | }
|
---|
[1638] | 1743 | for (i = 0; i < (int) mr_conf->external_tape_blocksize; i++) {
|
---|
[128] | 1744 | tempblock[i] = 0;
|
---|
| 1745 | }
|
---|
[1939] | 1746 | sprintf(tempblock + 6000 + control_char, STR_HEADER);
|
---|
[128] | 1747 | tempblock[7000] = control_char;
|
---|
[684] | 1748 | memcpy(tempblock + 7001, (char *) &olen, sizeof(off_t));
|
---|
[128] | 1749 | strcpy(tempblock + 1000, filename);
|
---|
| 1750 | g_tape_posK +=
|
---|
[1638] | 1751 | fwrite(tempblock, 1, (size_t) mr_conf->external_tape_blocksize,
|
---|
[128] | 1752 | g_tape_stream) / 1024;
|
---|
[1638] | 1753 | paranoid_free(tempblock);
|
---|
[1175] | 1754 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
[128] | 1755 | marker_to_string(control_char), p,
|
---|
| 1756 | (long) length_of_incoming_file >> 10);
|
---|
| 1757 | return (0);
|
---|
[1] | 1758 | }
|
---|
| 1759 |
|
---|
| 1760 |
|
---|
| 1761 | /**
|
---|
| 1762 | * Log (to screen) an erroneous marker, along with what it should have been.
|
---|
| 1763 | * @param should_be What we were expecting.
|
---|
| 1764 | * @param it_is What we got.
|
---|
| 1765 | */
|
---|
[128] | 1766 | void wrong_marker(int should_be, int it_is)
|
---|
[1] | 1767 | {
|
---|
[128] | 1768 | /*@ buffer ***************************************************** */
|
---|
[1175] | 1769 | char *tmp = NULL;
|
---|
[1] | 1770 |
|
---|
| 1771 |
|
---|
[128] | 1772 | /*@ end vars *************************************************** */
|
---|
[1175] | 1773 | mr_asprintf(&tmp, _("Wrong marker! (Should be %s, is actually %s)"),
|
---|
| 1774 | marker_to_string(should_be), marker_to_string(it_is));
|
---|
[128] | 1775 | log_to_screen(tmp);
|
---|
[1175] | 1776 | mr_free(tmp);
|
---|
[1] | 1777 | }
|
---|
| 1778 |
|
---|
| 1779 | /* @} - end of streamGroup */
|
---|