[1174] | 1 | /* $Id: libmondo-stream.c 1639 2007-09-20 20:20:45Z bruno $
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[1] | 2 |
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| 3 | ...tools for talking to tapes, Monitas streams, etc.
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| 4 | */
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| 5 |
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[1174] | 6 | /*
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| 7 | *
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[1] | 8 | * @file
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| 9 | * Functions for writing data to/reading data from streams (tape, CD stream, etc.)
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| 10 | */
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| 11 |
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[1174] | 12 | #include <unistd.h>
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| 13 |
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[1] | 14 | #include "my-stuff.h"
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[1080] | 15 | #include "mr_mem.h"
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[1123] | 16 | #include "mr_msg.h"
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[1369] | 17 | #include "mr_list.h"
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[1548] | 18 | #include "mr_gettext.h"
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[1638] | 19 | #include "mr_conf.h"
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[1174] | 20 |
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[1] | 21 | #include "mondostructures.h"
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| 22 | #include "libmondo-devices.h"
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| 23 | #include "libmondo-stream.h"
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| 24 | #include "libmondo-string-EXT.h"
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| 25 | #include "libmondo-files-EXT.h"
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[1174] | 26 | #include "newt-specific-EXT.h"
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[1] | 27 | #include "libmondo-fork-EXT.h"
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| 28 | #include "libmondo-tools-EXT.h"
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| 29 | #include "libmondo-fifo-EXT.h"
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| 30 |
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| 31 | #define EXTRA_TAPE_CHECKSUMS
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| 32 |
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| 33 | /*@unused@*/
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[128] | 34 | //static char cvsid[] = "$Id: libmondo-stream.c 1639 2007-09-20 20:20:45Z bruno $";
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[1] | 35 | extern bool g_sigpipe;
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| 36 | extern int g_tape_buffer_size_MB;
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| 37 |
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[948] | 38 | extern char *g_getfacl;
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| 39 | extern char *g_getfattr;
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[1362] | 40 | extern char *MONDO_LOGFILE;
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[948] | 41 |
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[1639] | 42 | extern struct mr_ar_conf *mr_conf;
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[1638] | 43 |
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[1] | 44 | /**
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| 45 | * @addtogroup globalGroup
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| 46 | * @{
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| 47 | */
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| 48 | /**
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| 49 | * The file pointer for the opened tape/CD stream.
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| 50 | * Opened and closed by openin_tape(), openin_cdstream(),
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| 51 | * openout_tape(), openout_cdstream(), closein_tape(), closein_cdstream(),
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| 52 | * closeout_tape(), and closeout_cdstream().
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| 53 | */
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| 54 | FILE *g_tape_stream = NULL;
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| 55 |
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| 56 |
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| 57 | /**
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| 58 | * The position (in kilobytes) where we are on the tape.
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| 59 | */
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| 60 | long long g_tape_posK = 0;
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| 61 |
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| 62 | /**
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| 63 | * The current media number we're using. This value is 1-based.
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| 64 | */
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[128] | 65 | int g_current_media_number = -1;
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[1] | 66 |
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| 67 | /**
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[1362] | 68 | * An entry in the tape catalog.
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[1] | 69 | */
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[1362] | 70 | struct s_tapecat_entry {
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| 71 | /**
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| 72 | * The type of archive it is (afioball, slice, or something else).
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| 73 | */
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| 74 | t_archtype type;
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[1] | 75 |
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[1362] | 76 | /**
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| 77 | * The filelist number or biggiefile (not slice!) number.
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| 78 | */
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| 79 | int number;
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[1] | 80 |
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[1362] | 81 | /**
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| 82 | * The slice number if it's a biggiefile.
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| 83 | */
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| 84 | long aux;
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[1] | 85 |
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[1362] | 86 | /**
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| 87 | * The tape position at the point this entry was added.
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| 88 | */
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| 89 | long long tape_posK;
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[1] | 90 |
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[1362] | 91 | /**
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| 92 | * The filename of the file cataloged here.
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| 93 | */
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| 94 | char *fname;
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| 95 | };
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[1] | 96 |
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| 97 |
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[1362] | 98 | /*
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| 99 | * The tape catalog that keeps track of files written to tape.
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| 100 | * made of a list of @p s_tapecat_entry.
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| 101 | * */
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[1369] | 102 | static struct mr_list *tapecatalog;
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[1] | 103 |
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[1362] | 104 | /* function to free the fname field allocated in te */
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| 105 | static void mr_free_te(void *data) {
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| 106 |
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| 107 | struct s_tapecat_entry *te = NULL;
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| 108 |
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| 109 | te = (struct s_tapecat_entry *)data;
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| 110 | mr_free(te->fname);
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| 111 | }
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| 112 |
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| 113 | /* @} - end of globalGroup */
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| 114 |
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| 115 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo);
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| 116 |
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| 117 |
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[1] | 118 | /**
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| 119 | * @addtogroup streamGroup
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| 120 | * @{
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| 121 | */
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| 122 | /**
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| 123 | * Close the global output file descriptor which Mondo has used to read
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| 124 | * from the CD stream.
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| 125 | * @param bkpinfo The backup information structure. Passed directly to closein_tape().
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| 126 | * @return 0 for success, nonzero for failure.
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| 127 | * @note This should be called by restore processes only.
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| 128 | */
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[128] | 129 | int closein_cdstream(struct s_bkpinfo *bkpinfo)
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[1] | 130 | {
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[128] | 131 | return (closein_tape(bkpinfo));
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[1] | 132 | }
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| 133 |
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| 134 |
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| 135 | /**
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| 136 | * Close the global output file descriptor which Mondo has used to read
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| 137 | * from buffer or dd, which read from the tape.
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| 138 | * @param bkpinfo The backup information structure. Unused.
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| 139 | * @return 0 for success, nonzero for failure.
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| 140 | * @note This should be called by restore processes only.
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| 141 | * @note This function also works for cdstreams for now, but don't count on this behavior.
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| 142 | * @bug @p bkpinfo parameter is unused.
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| 143 | */
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[128] | 144 | int closein_tape(struct s_bkpinfo *bkpinfo)
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[1] | 145 | {
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[128] | 146 | /*@ int's ******************************************************* */
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| 147 | int retval = 0;
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| 148 | int res = 0;
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| 149 | int ctrl_chr = '\0';
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[1] | 150 |
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[128] | 151 | /*@ buffers ***************************************************** */
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| 152 | char fname[MAX_STR_LEN];
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[1] | 153 |
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[128] | 154 | /*@ long long's ************************************************* */
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| 155 | long long size;
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| 156 | char *blk;
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| 157 | int i;
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[1] | 158 |
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[1080] | 159 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 160 |
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[128] | 161 | log_it("closein_tape() -- entering");
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| 162 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
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| 163 | retval += res;
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| 164 | if (ctrl_chr != BLK_END_OF_BACKUP) {
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| 165 | wrong_marker(BLK_END_OF_BACKUP, ctrl_chr);
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| 166 | }
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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_TAPE) {
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| 170 | wrong_marker(BLK_END_OF_TAPE, ctrl_chr);
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| 171 | }
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| 172 | for (i = 0; i < 8 && !feof(g_tape_stream); i++) {
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| 173 | (void) fread(blk, 1, 256 * 1024, g_tape_stream);
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| 174 | }
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| 175 | sleep(1);
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[1175] | 176 | sync();
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[128] | 177 | sleep(1);
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| 178 | paranoid_pclose(g_tape_stream);
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| 179 | log_it("closein_tape() -- leaving");
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| 180 | if (!bkpinfo->please_dont_eject) {
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| 181 | eject_device(bkpinfo->media_device);
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| 182 | }
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[1080] | 183 | mr_free(blk);
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[1369] | 184 | mr_list_free(tapecatalog);
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[128] | 185 | return (retval);
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[1] | 186 | }
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| 187 |
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| 188 |
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| 189 |
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| 190 | /**
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| 191 | * Close the global output file descriptor which Mondo has been using to write
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| 192 | * to the tape device (via buffer or dd).
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| 193 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
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| 194 | * @return 0 for success, nonzero for failure.
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| 195 | * @note This should be called by backup processes only.
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| 196 | */
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[128] | 197 | int closeout_tape(struct s_bkpinfo *bkpinfo)
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[1] | 198 | {
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[128] | 199 | /*@ int's ******************************************************* */
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| 200 | int retval = 0;
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[1] | 201 |
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[128] | 202 | /*@ long long's ************************************************* */
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[1175] | 203 | int i = 0;
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| 204 | char *blk = NULL;
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[1362] | 205 | struct mr_list_elt *elt = NULL;
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| 206 | struct s_tapecat_entry *te = NULL;
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[1] | 207 |
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[1080] | 208 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 209 |
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[128] | 210 | sleep(1);
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[1175] | 211 | sync();
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[128] | 212 | sleep(1);
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| 213 | log_it("closeout_tape() -- entering");
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| 214 | retval +=
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[684] | 215 | write_header_block_to_stream((off_t)0, "end-of-backup",
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[128] | 216 | BLK_END_OF_BACKUP);
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[684] | 217 | retval += write_header_block_to_stream((off_t)0, "end-of-tape", BLK_END_OF_TAPE); /* just in case */
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[1175] | 218 | /* write 1MB of crap */
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[128] | 219 | for (i = 0; i < 256 * 1024; i++) {
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| 220 | blk[i] = (int) (random() & 0xFF);
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| 221 | }
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| 222 | for (i = 0; i < 4 * 8; i++) {
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| 223 | (void) fwrite(blk, 1, 256 * 1024, g_tape_stream);
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| 224 | if (should_we_write_to_next_tape
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[1365] | 225 | (bkpinfo->media_size, (off_t)256 * 1024)) {
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[128] | 226 | start_to_write_to_next_tape(bkpinfo);
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| 227 | }
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| 228 | }
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| 229 | sleep(2);
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| 230 | paranoid_pclose(g_tape_stream);
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| 231 | log_it("closeout_tape() -- leaving");
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[1369] | 232 | elt = tapecatalog->first;
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[1362] | 233 | while (elt != NULL) {
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| 234 | te = (struct s_tapecat_entry *)elt->data;
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[128] | 235 | log_it("i=%d type=%s num=%d aux=%ld posK=%lld", i,
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[1362] | 236 | (te->type == fileset) ? "fileset" : "bigslice",
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| 237 | te->number, te->aux, te->tape_posK);
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| 238 | i++;
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| 239 | elt = elt->next;
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[128] | 240 | }
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[1080] | 241 | mr_free(blk);
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[1369] | 242 | mr_list_free(tapecatalog);
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[128] | 243 | return (retval);
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[1] | 244 | }
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| 245 |
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| 246 |
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| 247 |
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[128] | 248 | bool mt_says_tape_exists(char *dev)
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[1] | 249 | {
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[128] | 250 | char *command;
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| 251 | int res;
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[1] | 252 |
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[1175] | 253 | mr_asprintf(&command, "mt -f %s status", dev);
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[128] | 254 | res = run_program_and_log_output(command, 1);
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[1080] | 255 | mr_free(command);
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[128] | 256 | if (res) {
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| 257 | return (FALSE);
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| 258 | } else {
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| 259 | return (TRUE);
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| 260 | }
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[1] | 261 | }
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| 262 |
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| 263 |
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| 264 |
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| 265 | /**
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| 266 | * Determine the name and size of the tape device. Tries the SCSI tape for
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| 267 | * this platform, then the IDE tape, then "/dev/st0", then "/dev/osst0".
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| 268 | * @param dev Where to put the found tape device.
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| 269 | * @param siz Where to put the tape size (a string like "4GB")
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| 270 | * @return 0 if success, nonzero if failure (in which @p dev and @p siz are undefined).
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| 271 | */
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[128] | 272 | int find_tape_device_and_size(char *dev, char *siz)
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[1] | 273 | {
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[128] | 274 | char tmp[MAX_STR_LEN];
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[1175] | 275 | char *command = NULL;
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[128] | 276 | char cdr_exe[MAX_STR_LEN];
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| 277 | int res;
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[1] | 278 |
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[1569] | 279 | strcpy(dev, VANILLA_SCSI_TAPE);
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[128] | 280 | log_to_screen("I am looking for your tape streamer. Please wait.");
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[1569] | 281 | log_it("I am looking for your tape streamer. Please wait.");
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| 282 | log_it("Taking %s as default",VANILLA_SCSI_TAPE);
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[128] | 283 | dev[0] = siz[0] = '\0';
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| 284 | if (find_home_of_exe("cdrecord")) {
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| 285 | strcpy(cdr_exe, "cdrecord");
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| 286 | } else {
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| 287 | strcpy(cdr_exe, "dvdrecord");
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[1] | 288 | }
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[1175] | 289 | mr_asprintf(&command, "%s -scanbus 2> /dev/null | grep -i tape | wc -l",
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[128] | 290 | cdr_exe);
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| 291 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 292 | mr_free(command);
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[128] | 293 | if (atoi(tmp) != 1) {
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[1569] | 294 | log_it("Either too few or too many tape streamers for me to detect...");
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[128] | 295 | return 1;
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| 296 | }
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[1175] | 297 | mr_asprintf(&command,
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[128] | 298 | "%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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| 299 | cdr_exe);
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| 300 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 301 | mr_free(command);
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[128] | 302 | if (strlen(tmp) < 2) {
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[1569] | 303 | log_it("Could not check tape device with %s",cdr_exe);
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[128] | 304 | return 1;
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| 305 | }
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[1175] | 306 | mr_asprintf(&command,
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[128] | 307 | "%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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| 308 | cdr_exe);
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| 309 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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[1175] | 310 | mr_free(command);
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| 311 |
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[128] | 312 | strcpy(dev, VANILLA_SCSI_TAPE);
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| 313 | dev[strlen(dev) - 1] = '\0';
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[1574] | 314 | dev[strlen(dev) - 2] = '\0';
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[128] | 315 | strcat(dev, tmp); // e.g. '/dev/st0' becomes '/dev/stN'
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| 316 | res = 0;
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| 317 | if (!mt_says_tape_exists(dev)) {
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| 318 | strcpy(dev, ALT_TAPE);
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| 319 | if (!mt_says_tape_exists(dev)) {
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| 320 | log_it("Cannot openin %s", dev);
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[1569] | 321 | strcpy(dev, "/dev/osst0");
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[128] | 322 | if (!mt_says_tape_exists(dev)) {
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[1574] | 323 | // Stay with VANILLA_SCSI_TAPE
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| 324 | strcpy(dev, VANILLA_SCSI_TAPE);
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[1569] | 325 | res++;
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| 326 | } else {
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| 327 | res = 0;
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[128] | 328 | }
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| 329 | }
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| 330 | }
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[1] | 331 |
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[128] | 332 | log_it("At this point, dev = %s and res = %d", dev, res);
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| 333 |
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[1594] | 334 | 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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| 335 | strcpy(tmp, call_program_and_get_last_line_of_output(command));
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| 336 | mr_free(command);
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[1] | 337 |
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[128] | 338 | siz[0] = '\0';
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| 339 | log_it("res=%d; dev=%s", res, dev);
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[1] | 340 |
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[128] | 341 | if (res) {
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| 342 | return (res);
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| 343 | }
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[1] | 344 |
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[128] | 345 | if (strlen(tmp) < 2) {
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| 346 | siz[0] = '\0';
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| 347 | log_it("Warning - size of tape unknown");
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| 348 | return (0);
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| 349 | } else {
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| 350 | strcpy(siz, tmp);
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| 351 | return (0);
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| 352 | }
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[1] | 353 | }
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| 354 |
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| 355 |
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[128] | 356 | int read_EXAT_files_from_tape(struct s_bkpinfo *bkpinfo,
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| 357 | long long *ptmp_size, char *tmp_fname,
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| 358 | int *pctrl_chr, char *xattr_fname,
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| 359 | char *acl_fname)
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[1] | 360 | {
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[128] | 361 | int res = 0;
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| 362 | int retval = 0;
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[955] | 363 | char *fname = (char *)&res; /* Should NOT be NULL */
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[128] | 364 |
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[1] | 365 | // xattr
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[948] | 366 | if (g_getfattr) {
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[955] | 367 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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[948] | 368 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
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| 369 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
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| 370 | }
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[955] | 371 | if (!strstr(fname, "xattr")) {
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[948] | 372 | fatal_error("Wrong order, sunshine.");
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| 373 | }
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| 374 | read_file_from_stream_to_file(bkpinfo, xattr_fname, *ptmp_size);
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| 375 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
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| 376 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
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| 377 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
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| 378 | }
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[1107] | 379 | mr_msg(1, "Got xattr");
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[128] | 380 | }
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[1175] | 381 | // acl
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[948] | 382 | if (g_getfacl) {
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[955] | 383 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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| 384 | if (!strstr(fname, "acl")) {
|
---|
[948] | 385 | fatal_error("Wrong order, sunshine.");
|
---|
| 386 | }
|
---|
| 387 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
| 388 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
| 389 | }
|
---|
| 390 | read_file_from_stream_to_file(bkpinfo, acl_fname, *ptmp_size);
|
---|
| 391 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 392 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
| 393 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
| 394 | }
|
---|
| 395 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 396 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
| 397 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 398 | }
|
---|
[1107] | 399 | mr_msg(1, "Got acl");
|
---|
[128] | 400 | }
|
---|
[1175] | 401 | // tarball itself
|
---|
[128] | 402 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
[1107] | 403 | mr_msg(1, "now looking for afioball");
|
---|
[128] | 404 | return (retval);
|
---|
[1] | 405 | }
|
---|
| 406 |
|
---|
| 407 |
|
---|
[128] | 408 | int write_EXAT_files_to_tape(struct s_bkpinfo *bkpinfo, char *xattr_fname,
|
---|
| 409 | char *acl_fname)
|
---|
[1] | 410 | {
|
---|
[128] | 411 | int res = 0;
|
---|
[948] | 412 | if (g_getfattr) {
|
---|
[955] | 413 | // xattr
|
---|
[948] | 414 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 415 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
| 416 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 417 | BLK_START_EXAT_FILE);
|
---|
| 418 | write_file_to_stream_from_file(bkpinfo, xattr_fname);
|
---|
| 419 | write_header_block_to_stream((off_t)-1, xattr_fname, BLK_STOP_EXAT_FILE);
|
---|
| 420 | }
|
---|
| 421 | if (g_getfacl) {
|
---|
[955] | 422 | // acl
|
---|
[948] | 423 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
| 424 | BLK_START_EXAT_FILE);
|
---|
| 425 | write_file_to_stream_from_file(bkpinfo, acl_fname);
|
---|
| 426 | write_header_block_to_stream((off_t)-1, acl_fname, BLK_STOP_EXAT_FILE);
|
---|
| 427 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 428 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
| 429 | }
|
---|
[128] | 430 | return (res);
|
---|
[1] | 431 | }
|
---|
| 432 |
|
---|
| 433 |
|
---|
| 434 |
|
---|
| 435 |
|
---|
| 436 | /**
|
---|
| 437 | * Tell the user to insert tape @p tapeno and wait for it to settle (5 seconds).
|
---|
| 438 | * @param tapeno The tape number to insist on.
|
---|
| 439 | * @bug There is currently no way to actually verify that the user has actually
|
---|
| 440 | * inserted the right tape.
|
---|
| 441 | */
|
---|
| 442 | void insist_on_this_tape_number(int tapeno)
|
---|
| 443 | {
|
---|
[128] | 444 | int i;
|
---|
[1175] | 445 | char *tmp = NULL;
|
---|
[1] | 446 |
|
---|
[128] | 447 | log_it("Insisting on tape #%d", tapeno);
|
---|
| 448 | if (g_current_media_number != tapeno) {
|
---|
| 449 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
[1175] | 450 | mr_asprintf(&tmp,
|
---|
| 451 | _("When the tape drive goes quiet, please insert volume %d in this series."),
|
---|
| 452 | tapeno);
|
---|
[128] | 453 | popup_and_OK(tmp);
|
---|
[1175] | 454 | mr_free(tmp);
|
---|
| 455 | open_evalcall_form(_("Waiting while the tape drive settles"));
|
---|
[128] | 456 | } else {
|
---|
[1175] | 457 | open_evalcall_form(_("Waiting while the tape drive rewinds"));
|
---|
[128] | 458 | }
|
---|
[1] | 459 |
|
---|
[128] | 460 | for (i = 0; i <= 100; i += 2) {
|
---|
| 461 | usleep(100000);
|
---|
| 462 | update_evalcall_form(i);
|
---|
| 463 | }
|
---|
| 464 | close_evalcall_form();
|
---|
| 465 | log_it("I assume user has inserted it. They _say_ they have...");
|
---|
| 466 | g_current_media_number = tapeno;
|
---|
[1] | 467 |
|
---|
[128] | 468 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
| 469 | log_it("OK, I've finished insisting. On with the revelry.");
|
---|
[1] | 470 | }
|
---|
| 471 |
|
---|
| 472 |
|
---|
| 473 | /**
|
---|
| 474 | * Debugging aid - log the offset we're at on the tape (reading or writing).
|
---|
| 475 | */
|
---|
[128] | 476 | void log_tape_pos(void)
|
---|
[1] | 477 | {
|
---|
[128] | 478 | log_it("Tape position -- %ld KB (%ld MB)", (long) g_tape_posK,
|
---|
| 479 | (long) g_tape_posK >> 10);
|
---|
[1] | 480 | }
|
---|
| 481 |
|
---|
| 482 |
|
---|
| 483 | /**
|
---|
| 484 | * Add a file to a collection of recently archived filesets/slices.
|
---|
| 485 | * The type is determined by the filename: if it contains ".afio." it is
|
---|
| 486 | * assumed to be a fileset, otherwise if it contains "slice" it's a slice,
|
---|
| 487 | * otherwise we generate a fatal_error().
|
---|
| 488 | * @param td The current @c bkpinfo->tempdir (file will be placed in <tt>td</tt>/tmpfs/backcatalog/).
|
---|
| 489 | * @param latest_fname The file to place in the collection.
|
---|
| 490 | * @return 0, always.
|
---|
| 491 | * @bug Return value is redundant.
|
---|
| 492 | * @bug The detection won't work for uncompressed afioballs (they end in ".afio", no dot afterwards). // Not true. They end in '.' -Hugo
|
---|
| 493 | */
|
---|
| 494 | int maintain_collection_of_recent_archives(char *td, char *latest_fname)
|
---|
| 495 | {
|
---|
[128] | 496 | long long final_alleged_writeK, final_projected_certain_writeK,
|
---|
| 497 | final_actually_certain_writeK = 0, cposK, bufsize_K;
|
---|
[1424] | 498 | int last = 0;
|
---|
| 499 | int i = 0;
|
---|
[128] | 500 | t_archtype type = other;
|
---|
[1175] | 501 | char *command = NULL;
|
---|
| 502 | char *tmpdir = NULL;
|
---|
| 503 | char *old_fname = NULL;
|
---|
[1362] | 504 | struct mr_list_elt *elt = NULL;
|
---|
| 505 | struct s_tapecat_entry *te = NULL;
|
---|
[1] | 506 |
|
---|
[128] | 507 | bufsize_K = (long long) (1024LL * (1 + g_tape_buffer_size_MB));
|
---|
| 508 | if (strstr(latest_fname, ".afio.") || strstr(latest_fname, ".star.")) {
|
---|
| 509 | type = fileset;
|
---|
| 510 | } else if (strstr(latest_fname, "slice")) {
|
---|
| 511 | type = biggieslice;
|
---|
| 512 | } else {
|
---|
| 513 | log_it("fname = %s", latest_fname);
|
---|
| 514 | fatal_error
|
---|
| 515 | ("Unknown type. Internal error in maintain_collection_of_recent_archives()");
|
---|
| 516 | }
|
---|
[1175] | 517 |
|
---|
| 518 | mr_asprintf(&tmpdir, "%s/tmpfs/backcatalog", td);
|
---|
[128] | 519 | mkdir(tmpdir, 0x700);
|
---|
[1175] | 520 | mr_asprintf(&command, "cp -f %s %s", latest_fname, tmpdir);
|
---|
[128] | 521 | if (run_program_and_log_output(command, 6)) {
|
---|
| 522 | log_it("Warning - failed to copy %s to backcatalog at %s",
|
---|
| 523 | latest_fname, tmpdir);
|
---|
| 524 | }
|
---|
[1175] | 525 | mr_free(command);
|
---|
| 526 |
|
---|
[1369] | 527 | last = mr_list_length(tapecatalog) - 1;
|
---|
[128] | 528 | if (last <= 0) {
|
---|
| 529 | iamhere("Too early to start deleting from collection.");
|
---|
| 530 | return (0);
|
---|
| 531 | }
|
---|
[1369] | 532 | elt = tapecatalog->last;
|
---|
[1362] | 533 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 534 | final_alleged_writeK = te->tape_posK;
|
---|
[128] | 535 | final_projected_certain_writeK = final_alleged_writeK - bufsize_K;
|
---|
[1362] | 536 | while (elt != NULL) {
|
---|
| 537 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 538 | cposK = te->tape_posK;
|
---|
[128] | 539 | if (cposK < final_projected_certain_writeK) {
|
---|
| 540 | final_actually_certain_writeK = cposK;
|
---|
| 541 | break;
|
---|
| 542 | }
|
---|
[1362] | 543 | elt = elt->prev;
|
---|
[128] | 544 | }
|
---|
[1362] | 545 | if (elt == NULL) {
|
---|
[128] | 546 | iamhere
|
---|
| 547 | ("Not far enough into tape to start deleting old archives from collection.");
|
---|
| 548 | return (0);
|
---|
| 549 | }
|
---|
[1] | 550 |
|
---|
[1362] | 551 | elt = elt->prev;
|
---|
| 552 | i = 0;
|
---|
| 553 | while ((elt != NULL) && (i < 10)) {
|
---|
| 554 | te = (struct s_tapecat_entry *)elt->data;
|
---|
| 555 | mr_asprintf(&old_fname, "%s/%s", tmpdir, te->fname);
|
---|
[128] | 556 | unlink(old_fname);
|
---|
[1175] | 557 | mr_free(old_fname);
|
---|
[1362] | 558 | elt = elt->prev;
|
---|
| 559 | i++;
|
---|
[128] | 560 | }
|
---|
[1175] | 561 | mr_free(tmpdir);
|
---|
[128] | 562 | return (0);
|
---|
[1] | 563 | }
|
---|
| 564 |
|
---|
| 565 |
|
---|
| 566 | /**
|
---|
| 567 | * Open the CD stream for input.
|
---|
| 568 | * @param bkpinfo The backup information structure. Passed to openin_tape().
|
---|
| 569 | * @return 0 for success, nonzero for failure.
|
---|
| 570 | * @note Equivalent to openin_tape() for now, but don't count on this behavior.
|
---|
| 571 | */
|
---|
[128] | 572 | int openin_cdstream(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 573 | {
|
---|
[128] | 574 | return (openin_tape(bkpinfo));
|
---|
[1] | 575 | }
|
---|
| 576 |
|
---|
| 577 |
|
---|
[128] | 578 | int set_tape_block_size_with_mt(char *tapedev,
|
---|
| 579 | long internal_tape_block_size)
|
---|
[1] | 580 | {
|
---|
[128] | 581 | char *tmp;
|
---|
| 582 | int res;
|
---|
[1] | 583 |
|
---|
[128] | 584 | if (strncmp(tapedev, "/dev/", 5)) {
|
---|
[1107] | 585 | mr_msg(1,
|
---|
[128] | 586 | "Not using 'mt setblk'. This isn't an actual /dev entry.");
|
---|
| 587 | return (0);
|
---|
| 588 | }
|
---|
[1175] | 589 | mr_asprintf(&tmp, "mt -f %s setblk %ld", tapedev,
|
---|
| 590 | internal_tape_block_size);
|
---|
[128] | 591 | res = run_program_and_log_output(tmp, 3);
|
---|
[1080] | 592 | mr_free(tmp);
|
---|
[128] | 593 | return (res);
|
---|
[1] | 594 | }
|
---|
| 595 |
|
---|
| 596 |
|
---|
| 597 | /**
|
---|
| 598 | * Open the tape device for input.
|
---|
| 599 | * @param bkpinfo The backup information structure. Fields used:
|
---|
| 600 | * - @c bkpinfo->media_device
|
---|
| 601 | * - @c bkpinfo->tmpdir
|
---|
| 602 | * @return 0 for success, nonzero for failure.
|
---|
| 603 | * @note This will also work with a cdstream for now, but don't count on this behavior.
|
---|
| 604 | */
|
---|
[128] | 605 | int openin_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 606 | {
|
---|
[128] | 607 | /*@ buffer ***************************************************** */
|
---|
| 608 | char fname[MAX_STR_LEN];
|
---|
[1175] | 609 | char *datablock = NULL;
|
---|
| 610 | char *tmp = NULL;
|
---|
[128] | 611 | char old_cwd[MAX_STR_LEN];
|
---|
[1175] | 612 | char *outfname = NULL;
|
---|
[128] | 613 | /*@ int ******************************************************* */
|
---|
| 614 | int i;
|
---|
| 615 | int j;
|
---|
| 616 | int res;
|
---|
| 617 | long length, templong;
|
---|
| 618 | size_t k;
|
---|
| 619 | int retval = 0;
|
---|
| 620 | int ctrl_chr;
|
---|
[1] | 621 |
|
---|
[128] | 622 | /*@ long long ************************************************* */
|
---|
| 623 | long long size;
|
---|
[1] | 624 |
|
---|
[128] | 625 | /*@ pointers ************************************************** */
|
---|
| 626 | FILE *fout;
|
---|
[1] | 627 |
|
---|
[128] | 628 | /*@ end vars *************************************************** */
|
---|
[1] | 629 |
|
---|
[128] | 630 | assert_string_is_neither_NULL_nor_zerolength(bkpinfo->media_device);
|
---|
[1392] | 631 | tapecatalog = mr_list_alloc();
|
---|
[128] | 632 | g_tape_posK = 0;
|
---|
| 633 | if (g_tape_stream) {
|
---|
| 634 | log_it("FYI - I won't 'openin' the tape. It's already open.");
|
---|
| 635 | return (0);
|
---|
| 636 | }
|
---|
| 637 | insist_on_this_tape_number(1);
|
---|
[1175] | 638 | mr_asprintf(&outfname, "%s/tmp/all.tar.gz", bkpinfo->tmpdir);
|
---|
[128] | 639 | make_hole_for_file(outfname);
|
---|
[1] | 640 |
|
---|
[128] | 641 | set_tape_block_size_with_mt(bkpinfo->media_device,
|
---|
| 642 | bkpinfo->internal_tape_block_size);
|
---|
[1] | 643 |
|
---|
[128] | 644 | log_it("Opening IN tape");
|
---|
| 645 | if (!
|
---|
| 646 | (g_tape_stream =
|
---|
| 647 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 648 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 649 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 650 | return (1);
|
---|
| 651 | }
|
---|
[1175] | 652 | log_to_screen(_("Reading stream"));
|
---|
[128] | 653 | log_it("stream device = '%s'", bkpinfo->media_device);
|
---|
[1175] | 654 | /* skip data disks */
|
---|
[128] | 655 | open_evalcall_form("Skipping data disks on stream");
|
---|
[1175] | 656 | log_to_screen(_("Skipping data disks on stream"));
|
---|
[128] | 657 | if (!(fout = fopen(outfname, "w"))) {
|
---|
| 658 | log_OS_error(outfname);
|
---|
[1175] | 659 | log_to_screen(_("Cannot openout datadisk all.tar.gz file"));
|
---|
[128] | 660 | return (-1);
|
---|
[1] | 661 | }
|
---|
[1080] | 662 | datablock = (char *) mr_malloc(256 * 1024);
|
---|
[128] | 663 | for (i = 0; i < 32; i++) {
|
---|
| 664 | for (j = 0; j < 4; j++) {
|
---|
| 665 | for (length = 0, k = 0; length < 256 * 1024; length += k) {
|
---|
| 666 | k = fread(datablock + length, 1, 256 * 1024 - length,
|
---|
| 667 | g_tape_stream);
|
---|
| 668 | }
|
---|
| 669 | (void) fwrite(datablock, 1, (size_t) length, fout);
|
---|
| 670 | g_tape_posK += length / 1024;
|
---|
| 671 | }
|
---|
| 672 | if (i > 8) // otherwise, 'buffer' distorts calculations
|
---|
| 673 | {
|
---|
| 674 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 675 | update_evalcall_form((int) (templong));
|
---|
| 676 | }
|
---|
| 677 | }
|
---|
| 678 | paranoid_fclose(fout);
|
---|
[1080] | 679 | mr_free(datablock);
|
---|
[1175] | 680 | /* find initial blocks */
|
---|
[128] | 681 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
| 682 | retval += res;
|
---|
| 683 | if (ctrl_chr != BLK_START_OF_TAPE) {
|
---|
| 684 | wrong_marker(BLK_START_OF_TAPE, ctrl_chr);
|
---|
| 685 | }
|
---|
| 686 | res = read_header_block_from_stream(&size, fname, &ctrl_chr);
|
---|
| 687 | retval += res;
|
---|
| 688 | if (ctrl_chr != BLK_START_OF_BACKUP) {
|
---|
| 689 | wrong_marker(BLK_START_OF_BACKUP, ctrl_chr);
|
---|
| 690 | }
|
---|
| 691 | close_evalcall_form();
|
---|
| 692 | log_it("Saved all.tar.gz to '%s'", outfname);
|
---|
| 693 | (void) getcwd(old_cwd, MAX_STR_LEN);
|
---|
| 694 | chdir(bkpinfo->tmpdir);
|
---|
[1175] | 695 | mr_asprintf(&tmp, "tar -zxf %s tmp/mondo-restore.cfg 2> /dev/null",
|
---|
| 696 | outfname);
|
---|
[128] | 697 | paranoid_system(tmp);
|
---|
[1175] | 698 | mr_free(tmp);
|
---|
[128] | 699 | paranoid_system("cp -f tmp/mondo-restore.cfg . 2> /dev/null");
|
---|
| 700 | chdir(old_cwd);
|
---|
| 701 | unlink(outfname);
|
---|
[1175] | 702 | mr_free(outfname);
|
---|
[128] | 703 | return (retval);
|
---|
[1] | 704 | }
|
---|
| 705 |
|
---|
| 706 |
|
---|
| 707 | /**
|
---|
| 708 | * Start writing to a CD stream.
|
---|
| 709 | * @param cddev The CD device to openout via cdrecord.
|
---|
| 710 | * @param speed The speed to write at.
|
---|
| 711 | * @return 0 for success, nonzero for failure.
|
---|
| 712 | * @note This should be called only from backup processes.
|
---|
| 713 | */
|
---|
[128] | 714 | int openout_cdstream(char *cddev, int speed)
|
---|
[1] | 715 | {
|
---|
[128] | 716 | /*@ buffers ***************************************************** */
|
---|
[1175] | 717 | char *command = NULL;
|
---|
[1] | 718 |
|
---|
[128] | 719 | /*@ end vars *************************************************** */
|
---|
[1] | 720 |
|
---|
[1175] | 721 | /* add 'dummy' if testing */
|
---|
| 722 | mr_asprintf(&command,
|
---|
| 723 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 724 | cddev, speed, MONDO_LOGFILE, MONDO_LOGFILE);
|
---|
| 725 | /* initialise the catalog */
|
---|
[128] | 726 | g_current_media_number = 1;
|
---|
[1392] | 727 | tapecatalog = mr_list_alloc();
|
---|
[1175] | 728 | /* log stuff */
|
---|
[128] | 729 | log_it("Opening OUT cdstream with the command");
|
---|
| 730 | log_it(command);
|
---|
[1175] | 731 | /* log_it("Let's see what happens, shall we?"); */
|
---|
[128] | 732 | g_tape_stream = popen(command, "w");
|
---|
[1175] | 733 | mr_free(command);
|
---|
[128] | 734 | if (g_tape_stream) {
|
---|
| 735 | return (0);
|
---|
| 736 | } else {
|
---|
[1175] | 737 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[128] | 738 | return (1);
|
---|
| 739 | }
|
---|
[1] | 740 | }
|
---|
| 741 |
|
---|
[1175] | 742 |
|
---|
[1] | 743 | /**
|
---|
| 744 | * Start writing to a tape device for the backup.
|
---|
| 745 | * @param tapedev The tape device to open for writing.
|
---|
| 746 | * @return 0 for success, nonzero for failure.
|
---|
| 747 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
| 748 | * EXISTING DATA on the tape!
|
---|
| 749 | */
|
---|
[128] | 750 | int openout_tape(char *tapedev, long internal_tape_block_size)
|
---|
[1] | 751 | {
|
---|
[128] | 752 | g_current_media_number = 1;
|
---|
| 753 | if (g_tape_stream) {
|
---|
| 754 | log_it("FYI - I won't 'openout' the tape. It's already open.");
|
---|
| 755 | return (0);
|
---|
| 756 | }
|
---|
[1392] | 757 | tapecatalog = mr_list_alloc();
|
---|
[128] | 758 | g_tape_posK = 0;
|
---|
| 759 |
|
---|
| 760 | set_tape_block_size_with_mt(tapedev, internal_tape_block_size);
|
---|
| 761 | log_it("Opening OUT tape");
|
---|
| 762 | if (!
|
---|
| 763 | (g_tape_stream =
|
---|
| 764 | open_device_via_buffer(tapedev, 'w', internal_tape_block_size))) {
|
---|
[1175] | 765 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 766 | return (1);
|
---|
| 767 | }
|
---|
| 768 | return (0);
|
---|
[1] | 769 | }
|
---|
| 770 |
|
---|
| 771 |
|
---|
| 772 | /**
|
---|
| 773 | * Copy a file from the opened stream (CD or tape) to @p outfile.
|
---|
| 774 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 775 | * @param outfile The file to write to.
|
---|
| 776 | * @param size The size of the file in the input stream.
|
---|
| 777 | * @return 0 for success, nonzero for failure.
|
---|
| 778 | */
|
---|
| 779 | int
|
---|
[128] | 780 | read_file_from_stream_to_file(struct s_bkpinfo *bkpinfo, char *outfile,
|
---|
| 781 | long long size)
|
---|
[1] | 782 | {
|
---|
| 783 |
|
---|
[128] | 784 | /*@ int ******************************************************** */
|
---|
| 785 | int res;
|
---|
[1] | 786 |
|
---|
[128] | 787 | /*@ end vars *************************************************** */
|
---|
[1] | 788 |
|
---|
[128] | 789 | res = read_file_from_stream_FULL(bkpinfo, outfile, NULL, size);
|
---|
[1] | 790 |
|
---|
[128] | 791 | return (res);
|
---|
[1] | 792 | }
|
---|
| 793 |
|
---|
| 794 |
|
---|
| 795 | /**
|
---|
| 796 | * Copy a file from the currently opened stream (CD or tape) to the stream indicated
|
---|
| 797 | * by @p fout.
|
---|
| 798 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 799 | * @param fout The stream to write the file to.
|
---|
| 800 | * @param size The size of the file in bytes.
|
---|
| 801 | * @return 0 for success, nonzero for failure.
|
---|
| 802 | */
|
---|
| 803 | int
|
---|
[128] | 804 | read_file_from_stream_to_stream(struct s_bkpinfo *bkpinfo, FILE * fout,
|
---|
| 805 | long long size)
|
---|
[1] | 806 | {
|
---|
| 807 |
|
---|
[128] | 808 | /*@ int ******************************************************** */
|
---|
| 809 | int res;
|
---|
[1] | 810 |
|
---|
[128] | 811 | /*@ end vars *************************************************** */
|
---|
[1] | 812 |
|
---|
[128] | 813 | res = read_file_from_stream_FULL(bkpinfo, NULL, fout, size);
|
---|
| 814 | return (res);
|
---|
[1] | 815 | }
|
---|
| 816 |
|
---|
| 817 |
|
---|
| 818 | /**
|
---|
| 819 | * Copy a file from the currently opened stream (CD or tape) to either a
|
---|
| 820 | * @c FILE pointer indicating a currently-opened file, or a filename indicating
|
---|
| 821 | * a new file to create. This is the backbone function that read_file_from_stream_to_file()
|
---|
| 822 | * and read_file_from_stream_to_stream() are wrappers for.
|
---|
| 823 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 824 | * @param outfname If non-NULL, write to this file.
|
---|
| 825 | * @param foutstream If non-NULL, write to this stream.
|
---|
| 826 | * @param orig_size The original length of the file in bytes.
|
---|
| 827 | * @return 0 for success, nonzero for failure.
|
---|
| 828 | * @note Only @b one of @p outfname or @p foutstream may be non-NULL.
|
---|
| 829 | */
|
---|
| 830 | int
|
---|
[128] | 831 | read_file_from_stream_FULL(struct s_bkpinfo *bkpinfo, char *outfname,
|
---|
| 832 | FILE * foutstream, long long orig_size)
|
---|
[1] | 833 | {
|
---|
[128] | 834 | /*@ buffers ***************************************************** */
|
---|
[1175] | 835 | char *tmp = NULL;
|
---|
| 836 | char *datablock = NULL;
|
---|
[128] | 837 | char *temp_fname;
|
---|
| 838 | char *temp_cksum;
|
---|
[1175] | 839 | char *actual_cksum = NULL;
|
---|
[1] | 840 |
|
---|
[128] | 841 | /*@ int ********************************************************* */
|
---|
| 842 | int retval = 0;
|
---|
[1] | 843 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 844 | int i, ch;
|
---|
[1] | 845 | #endif
|
---|
[128] | 846 | int noof_blocks;
|
---|
| 847 | int ctrl_chr;
|
---|
| 848 | int res;
|
---|
| 849 | /*@ pointers **************************************************** */
|
---|
| 850 | FILE *fout;
|
---|
[1] | 851 |
|
---|
[128] | 852 | /*@ long ***************************************************** */
|
---|
[1175] | 853 | long bytes_to_write = 0;
|
---|
[1] | 854 |
|
---|
[128] | 855 | /*@ long long *************************************************** */
|
---|
| 856 | long long temp_size, size;
|
---|
| 857 | long bytes_read, bytes_to_read;
|
---|
| 858 | long long total_read_from_tape_for_this_file = 0;
|
---|
| 859 | long long where_I_was_before_tape_change = 0;
|
---|
| 860 | /*@ unsigned int ************************************************ */
|
---|
| 861 | unsigned int crc16;
|
---|
| 862 | unsigned int crctt;
|
---|
[1] | 863 |
|
---|
[128] | 864 | bool had_to_resync = FALSE;
|
---|
[1] | 865 |
|
---|
[128] | 866 | /*@ init ******************************************************* */
|
---|
| 867 | malloc_string(temp_fname);
|
---|
| 868 | malloc_string(temp_cksum);
|
---|
[1638] | 869 | datablock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[128] | 870 | crc16 = 0;
|
---|
| 871 | crctt = 0;
|
---|
| 872 | size = orig_size;
|
---|
[1] | 873 |
|
---|
[128] | 874 | /*@ end vars *************************************************** */
|
---|
[1] | 875 |
|
---|
[128] | 876 | res = read_header_block_from_stream(&temp_size, temp_fname, &ctrl_chr);
|
---|
| 877 | if (orig_size != temp_size && orig_size != -1) {
|
---|
[1175] | 878 | mr_asprintf(&tmp,
|
---|
| 879 | "output file's size should be %ld K but is apparently %ld K",
|
---|
| 880 | (long) size >> 10, (long) temp_size >> 10);
|
---|
[128] | 881 | log_to_screen(tmp);
|
---|
[1175] | 882 | mr_free(tmp);
|
---|
[128] | 883 | }
|
---|
| 884 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 885 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 886 | return (1);
|
---|
| 887 | }
|
---|
[1175] | 888 | mr_asprintf(&tmp, "Reading file from tape; writing to '%s'; %ld KB",
|
---|
| 889 | outfname, (long) size >> 10);
|
---|
| 890 | log_to_screen(tmp);
|
---|
| 891 | mr_free(tmp);
|
---|
[1] | 892 |
|
---|
[128] | 893 | if (foutstream) {
|
---|
| 894 | fout = foutstream;
|
---|
| 895 | } else {
|
---|
| 896 | fout = fopen(outfname, "w");
|
---|
[1] | 897 | }
|
---|
[128] | 898 | if (!fout) {
|
---|
| 899 | log_OS_error(outfname);
|
---|
[1175] | 900 | log_to_screen(_("Cannot openout file"));
|
---|
[128] | 901 | return (1);
|
---|
| 902 | }
|
---|
| 903 | total_read_from_tape_for_this_file = 0;
|
---|
| 904 | for (noof_blocks = 0; size > 0;
|
---|
| 905 | noof_blocks++, size -=
|
---|
| 906 | bytes_to_write, total_read_from_tape_for_this_file +=
|
---|
| 907 | bytes_read) {
|
---|
| 908 | bytes_to_write =
|
---|
[1638] | 909 | (size < mr_conf->external_tape_blocksize) ? (long) size : mr_conf->external_tape_blocksize;
|
---|
| 910 | bytes_to_read = mr_conf->external_tape_blocksize;
|
---|
[128] | 911 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 912 | while (bytes_read < bytes_to_read) { // next tape!
|
---|
| 913 | // crctt=crc16=0;
|
---|
| 914 | where_I_was_before_tape_change = size;
|
---|
[1107] | 915 | mr_msg(4, "where_I_was_... = %lld",
|
---|
[128] | 916 | where_I_was_before_tape_change);
|
---|
| 917 | start_to_read_from_next_tape(bkpinfo);
|
---|
[1107] | 918 | mr_msg(4, "Started reading from next tape.");
|
---|
[128] | 919 | skip_incoming_files_until_we_find_this_one(temp_fname);
|
---|
[1107] | 920 | mr_msg(4, "Skipped irrelevant files OK.");
|
---|
[128] | 921 | for (size = orig_size; size > where_I_was_before_tape_change;
|
---|
| 922 | size -= bytes_to_write) {
|
---|
| 923 | bytes_read =
|
---|
| 924 | fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 925 | }
|
---|
[1107] | 926 | mr_msg(4, "'size' is now %lld (should be %lld)", size,
|
---|
[128] | 927 | where_I_was_before_tape_change);
|
---|
| 928 | log_to_screen("Successfully re-sync'd tape");
|
---|
| 929 | had_to_resync = TRUE;
|
---|
| 930 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 931 | }
|
---|
[1] | 932 |
|
---|
[128] | 933 | (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] | 934 |
|
---|
| 935 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 936 | for (i = 0; i < (int) bytes_to_write; i++) {
|
---|
| 937 | ch = datablock[i];
|
---|
| 938 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 939 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 940 | }
|
---|
[1] | 941 | #endif
|
---|
[128] | 942 | }
|
---|
[1107] | 943 | mr_msg(6, "Total read from tape for this file = %lld",
|
---|
[128] | 944 | total_read_from_tape_for_this_file);
|
---|
[1107] | 945 | mr_msg(6, ".......................... Should be %lld", orig_size);
|
---|
[128] | 946 | g_tape_posK += total_read_from_tape_for_this_file / 1024;
|
---|
[1175] | 947 | mr_asprintf(&actual_cksum, "%04x%04x", crc16, crctt);
|
---|
[128] | 948 | if (foutstream) { /*log_it("Finished writing to foutstream"); */
|
---|
| 949 | } else {
|
---|
| 950 | paranoid_fclose(fout);
|
---|
| 951 | }
|
---|
| 952 | res = read_header_block_from_stream(&temp_size, temp_cksum, &ctrl_chr);
|
---|
| 953 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 954 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
[1] | 955 | // fatal_error("Bad marker"); // return(1);
|
---|
[128] | 956 | }
|
---|
| 957 | if (strcmp(temp_cksum, actual_cksum)) {
|
---|
[1175] | 958 | mr_asprintf(&tmp, _("actual cksum=%s; recorded cksum=%s"), actual_cksum,
|
---|
| 959 | temp_cksum);
|
---|
[128] | 960 | log_to_screen(tmp);
|
---|
[1175] | 961 | mr_free(tmp);
|
---|
| 962 |
|
---|
| 963 | mr_asprintf(&tmp, _("%s (%ld K) is corrupt on tape"), temp_fname,
|
---|
| 964 | (long) orig_size >> 10);
|
---|
[128] | 965 | log_to_screen(tmp);
|
---|
[1175] | 966 | mr_free(tmp);
|
---|
[128] | 967 | retval++;
|
---|
| 968 | }
|
---|
[1175] | 969 | mr_free(actual_cksum);
|
---|
[1080] | 970 | mr_free(datablock);
|
---|
| 971 | mr_free(temp_fname);
|
---|
| 972 | mr_free(temp_cksum);
|
---|
[128] | 973 | return (retval);
|
---|
[1] | 974 | }
|
---|
| 975 |
|
---|
| 976 |
|
---|
| 977 | /**
|
---|
| 978 | * Read a header block from the currently opened stream (CD or tape).
|
---|
| 979 | * This block indicates the length of the following file (if it's file-related)
|
---|
| 980 | * the filename (if it's file-related), and the block type.
|
---|
| 981 | * @param plen Where to put the length of the file. Valid only for file-related header blocks.
|
---|
| 982 | * @param filename Where to put the name of the file. Valid only for file-related header blocks.
|
---|
| 983 | * @param pcontrol_char Where to put the type of block (e.g. start-file, end-file, start-tape, ...)
|
---|
| 984 | * @return 0 for success, nonzero for failure.
|
---|
| 985 | * @note If you read a marker (@p pcontrol_char) you're not expecting, you can call wrong_marker().
|
---|
| 986 | */
|
---|
| 987 | int
|
---|
[128] | 988 | read_header_block_from_stream(long long *plen, char *filename,
|
---|
| 989 | int *pcontrol_char)
|
---|
[1] | 990 | {
|
---|
| 991 |
|
---|
[128] | 992 | /*@ buffers ***************************************************** */
|
---|
| 993 | char *tempblock;
|
---|
[1] | 994 |
|
---|
[128] | 995 | /*@ int ********************************************************* */
|
---|
| 996 | int i, retval;
|
---|
[1] | 997 |
|
---|
[128] | 998 | /*@ end vars *************************************************** */
|
---|
[1] | 999 |
|
---|
[1638] | 1000 | tempblock = (char *) mr_malloc((size_t) mr_conf->external_tape_blocksize);
|
---|
[1] | 1001 |
|
---|
[1638] | 1002 | for (i = 0; i < (int) mr_conf->external_tape_blocksize; i++) {
|
---|
[128] | 1003 | tempblock[i] = 0;
|
---|
| 1004 | }
|
---|
| 1005 | while (!(*pcontrol_char = tempblock[7000])) {
|
---|
| 1006 | g_tape_posK +=
|
---|
[1638] | 1007 | fread(tempblock, 1, (size_t) mr_conf->external_tape_blocksize,
|
---|
[128] | 1008 | g_tape_stream) / 1024;
|
---|
| 1009 | }
|
---|
| 1010 | memcpy((char *) plen, tempblock + 7001, sizeof(long long));
|
---|
| 1011 | if (strcmp(tempblock + 6000 + *pcontrol_char, "Mondolicious, baby")) {
|
---|
| 1012 | log_it("Bad header block at %ld K", (long) g_tape_posK);
|
---|
| 1013 | }
|
---|
| 1014 | strcpy(filename, tempblock + 1000);
|
---|
| 1015 | if (*pcontrol_char == BLK_ABORTED_BACKUP) {
|
---|
| 1016 | log_to_screen("I can't verify an aborted backup.");
|
---|
| 1017 | retval = 1;
|
---|
| 1018 | } else {
|
---|
| 1019 | retval = 0;
|
---|
| 1020 | }
|
---|
| 1021 | for (i = 1000; i < 1020; i++) {
|
---|
| 1022 | if (tempblock[i] < 32 || tempblock[i] > 126) {
|
---|
| 1023 | tempblock[i] = ' ';
|
---|
| 1024 | }
|
---|
| 1025 | }
|
---|
| 1026 | tempblock[i] = '\0';
|
---|
[1107] | 1027 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
[128] | 1028 | marker_to_string(*pcontrol_char), tempblock + 1000,
|
---|
| 1029 | (long) (*plen) >> 10);
|
---|
[1080] | 1030 | mr_free(tempblock);
|
---|
[128] | 1031 | return (retval);
|
---|
[1] | 1032 | }
|
---|
| 1033 |
|
---|
| 1034 |
|
---|
| 1035 | /**
|
---|
| 1036 | * Add specified file/slice to the internal catalog of all archives written.
|
---|
| 1037 | * This lets us restart on a new CD/tape/whatever if it runs out of room. We just
|
---|
| 1038 | * write the last [buffer size] MB from the catalog to the new tape, so we know
|
---|
| 1039 | * we have @e all archives on some CD/tape/whatever.
|
---|
| 1040 | * @param type The type of file we're cataloging (afioball, slice, something else)
|
---|
| 1041 | * @param number The fileset number or biggiefile number.
|
---|
| 1042 | * @param aux The slice number if it's a biggiefile, or any other additional info.
|
---|
| 1043 | * @param fn The original full pathname of the file we're recording.
|
---|
| 1044 | * @return The index of the record we just added.
|
---|
| 1045 | */
|
---|
[128] | 1046 | int register_in_tape_catalog(t_archtype type, int number, long aux,
|
---|
| 1047 | char *fn)
|
---|
[1] | 1048 | {
|
---|
[1362] | 1049 | char *fname = NULL;
|
---|
| 1050 | char *p = NULL;
|
---|
| 1051 | struct s_tapecat_entry *te = NULL;
|
---|
| 1052 | struct mr_list_elt *elt = NULL;
|
---|
[1] | 1053 |
|
---|
[128] | 1054 | p = strrchr(fn, '/');
|
---|
| 1055 | if (p) {
|
---|
| 1056 | p++;
|
---|
| 1057 | } else {
|
---|
| 1058 | p = fn;
|
---|
| 1059 | }
|
---|
[1362] | 1060 | mr_asprintf(&fname, p);
|
---|
| 1061 |
|
---|
| 1062 | te = (struct s_tapecat_entry *)mr_malloc(sizeof(struct s_tapecat_entry));
|
---|
| 1063 | te->type = type;
|
---|
| 1064 | te->number = number;
|
---|
| 1065 | te->aux = aux;
|
---|
| 1066 | te->tape_posK = g_tape_posK;
|
---|
| 1067 | /* BERLIOS: Check if this is written womewhere, as it's only a pointer */
|
---|
| 1068 | /* BERLIOS: Verify to purge fname correctly */
|
---|
| 1069 | te->fname = fname;
|
---|
| 1070 |
|
---|
| 1071 | /* place the data in a list elt */
|
---|
[1392] | 1072 | elt = mr_list_alloc_elt((void *)te, mr_free_te);
|
---|
[1370] | 1073 | mr_list_add_elt_last(tapecatalog, elt);
|
---|
[1362] | 1074 |
|
---|
| 1075 | // returns the index of the record we've just added
|
---|
[1369] | 1076 | return (mr_list_length(tapecatalog));
|
---|
[1] | 1077 | }
|
---|
| 1078 |
|
---|
| 1079 |
|
---|
| 1080 | /**
|
---|
| 1081 | * Decide whether we should start a new tape. This is TRUE if we've run out of tape
|
---|
| 1082 | * (got SIGPIPE) or look like we will.
|
---|
| 1083 | * @param mediasize The size of the tape in megabytes.
|
---|
| 1084 | * @param length_of_incoming_file The length of the file we're about to write, in bytes.
|
---|
| 1085 | * @bug This seems like it'll only work for media_size != autodetect, but Mondo only allows
|
---|
| 1086 | * autodetecting the size. Huh?
|
---|
| 1087 | */
|
---|
[684] | 1088 |
|
---|
| 1089 | /* BERLIOS: Should be reviewed for mediasize being a off_t ??? */
|
---|
[1] | 1090 | bool
|
---|
[128] | 1091 | should_we_write_to_next_tape(long mediasize,
|
---|
[684] | 1092 | off_t length_of_incoming_file)
|
---|
[1] | 1093 | {
|
---|
[128] | 1094 | /*@ bool's ***************************************************** */
|
---|
| 1095 | bool we_need_a_new_tape = FALSE;
|
---|
[1] | 1096 |
|
---|
[128] | 1097 | /*@ end vars *************************************************** */
|
---|
[1] | 1098 |
|
---|
[128] | 1099 | if (mediasize == 0) {
|
---|
| 1100 | return (FALSE);
|
---|
| 1101 | }
|
---|
| 1102 | if (mediasize > 0 && (g_tape_posK >> 10 >= mediasize)) {
|
---|
| 1103 | log_it("mediasize = %ld", mediasize);
|
---|
| 1104 | we_need_a_new_tape = TRUE;
|
---|
[1175] | 1105 | log_to_screen(_("Should have started a new tape/CD already"));
|
---|
[128] | 1106 | }
|
---|
| 1107 | if ((g_tape_posK + length_of_incoming_file / 1024) >> 10 >=
|
---|
[1639] | 1108 | mediasize - 16) { /* 4096(old SLICE_SIZE) * 4 / 1024) */
|
---|
[128] | 1109 | log_it("g_tape_posK = %ld\nmediasize = %ld\n", g_tape_posK,
|
---|
| 1110 | mediasize);
|
---|
| 1111 | we_need_a_new_tape = TRUE;
|
---|
| 1112 | }
|
---|
| 1113 | return (we_need_a_new_tape);
|
---|
[1] | 1114 | }
|
---|
| 1115 |
|
---|
| 1116 |
|
---|
| 1117 | /**
|
---|
| 1118 | * Seek through the stream until we find a header block where the NAME field matches
|
---|
| 1119 | * @p the_file_I_was_reading. This is useful if you've just started reading from
|
---|
| 1120 | * a new tape and want to find the file you were reading when the tape ended.
|
---|
| 1121 | * @param the_file_I_was_reading File name to look for.
|
---|
| 1122 | * @return 0 for success, nonzero for failure.
|
---|
| 1123 | */
|
---|
[128] | 1124 | int skip_incoming_files_until_we_find_this_one(char
|
---|
| 1125 | *the_file_I_was_reading)
|
---|
[1] | 1126 | {
|
---|
[128] | 1127 | char *pA;
|
---|
| 1128 | char *pB;
|
---|
| 1129 | int res;
|
---|
| 1130 | int ctrl_chr;
|
---|
| 1131 | char *temp_fname;
|
---|
| 1132 | char *datablock;
|
---|
| 1133 | long long temp_size, size;
|
---|
| 1134 | long bytes_to_write;
|
---|
[1] | 1135 |
|
---|
[1638] | 1136 | datablock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[128] | 1137 | malloc_string(temp_fname);
|
---|
| 1138 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1139 | if (pB) {
|
---|
| 1140 | pB++;
|
---|
| 1141 | } else {
|
---|
| 1142 | pB = the_file_I_was_reading;
|
---|
[1] | 1143 | }
|
---|
[1107] | 1144 | mr_msg(1, "skip_incoming_..(%s)", pB);
|
---|
| 1145 | mr_msg(2, "Looking for initial START_AN_AFIO_OR_SLICE");
|
---|
[128] | 1146 | ctrl_chr = -1;
|
---|
| 1147 | while (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1148 | res =
|
---|
| 1149 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1150 | &ctrl_chr);
|
---|
| 1151 | if (ctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1152 | break;
|
---|
| 1153 | }
|
---|
[1107] | 1154 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[128] | 1155 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
[1107] | 1156 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[128] | 1157 | }
|
---|
| 1158 | while (ctrl_chr != BLK_START_FILE) {
|
---|
| 1159 | res =
|
---|
| 1160 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1161 | &ctrl_chr);
|
---|
| 1162 | if (ctrl_chr == BLK_START_FILE) {
|
---|
| 1163 | break;
|
---|
| 1164 | }
|
---|
[1107] | 1165 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[128] | 1166 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
[1107] | 1167 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[128] | 1168 | }
|
---|
| 1169 | pA = strrchr(temp_fname, '/');
|
---|
| 1170 | if (pA) {
|
---|
| 1171 | pA++;
|
---|
| 1172 | } else {
|
---|
| 1173 | pA = temp_fname;
|
---|
| 1174 | }
|
---|
| 1175 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1176 | if (pB) {
|
---|
| 1177 | pB++;
|
---|
| 1178 | } else {
|
---|
| 1179 | pB = the_file_I_was_reading;
|
---|
| 1180 | }
|
---|
| 1181 | while (strcmp(pA, pB)) {
|
---|
[1107] | 1182 | mr_msg(6, "Skipping %s (it's not %s)", temp_fname,
|
---|
[128] | 1183 | the_file_I_was_reading);
|
---|
| 1184 | for (size = temp_size; size > 0; size -= bytes_to_write) {
|
---|
| 1185 | bytes_to_write =
|
---|
[1638] | 1186 | (size < mr_conf->external_tape_blocksize) ? (long) size : mr_conf->external_tape_blocksize;
|
---|
[128] | 1187 | // FIXME - needs error-checking and -catching
|
---|
[1638] | 1188 | fread(datablock, 1, (size_t) mr_conf->external_tape_blocksize, g_tape_stream);
|
---|
[128] | 1189 | }
|
---|
| 1190 | res =
|
---|
| 1191 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1192 | &ctrl_chr);
|
---|
| 1193 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 1194 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
| 1195 | }
|
---|
| 1196 | res =
|
---|
| 1197 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1198 | &ctrl_chr);
|
---|
| 1199 | if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
|
---|
| 1200 | wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1201 | }
|
---|
| 1202 | res =
|
---|
| 1203 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1204 | &ctrl_chr);
|
---|
| 1205 | if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1206 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1207 | }
|
---|
| 1208 | res =
|
---|
| 1209 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1210 | &ctrl_chr);
|
---|
| 1211 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 1212 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1213 | }
|
---|
| 1214 | pA = strrchr(temp_fname, '/');
|
---|
| 1215 | if (pA) {
|
---|
| 1216 | pA++;
|
---|
| 1217 | } else {
|
---|
| 1218 | pA = temp_fname;
|
---|
| 1219 | }
|
---|
| 1220 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1221 | if (pB) {
|
---|
| 1222 | pB++;
|
---|
| 1223 | } else {
|
---|
| 1224 | pB = the_file_I_was_reading;
|
---|
| 1225 | }
|
---|
| 1226 | }
|
---|
[1107] | 1227 | mr_msg(2, "Reading %s (it matches %s)", temp_fname,
|
---|
[128] | 1228 | the_file_I_was_reading);
|
---|
[1080] | 1229 | mr_free(temp_fname);
|
---|
| 1230 | mr_free(datablock);
|
---|
[128] | 1231 | return (0);
|
---|
[1] | 1232 | }
|
---|
| 1233 |
|
---|
| 1234 |
|
---|
| 1235 | /**
|
---|
| 1236 | * Start to read from the next tape. Assumes the user has already inserted it.
|
---|
| 1237 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1238 | * @return 0 for success, nonzero for failure.
|
---|
| 1239 | */
|
---|
[128] | 1240 | int start_to_read_from_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1241 | {
|
---|
[128] | 1242 | /*@ int ********************************************************* */
|
---|
| 1243 | int res = 0;
|
---|
| 1244 | char *sz_msg;
|
---|
| 1245 | int ctrlchr;
|
---|
| 1246 | long long temp_size;
|
---|
| 1247 | malloc_string(sz_msg);
|
---|
| 1248 | /*@ end vars *************************************************** */
|
---|
[1] | 1249 |
|
---|
[128] | 1250 | paranoid_pclose(g_tape_stream);
|
---|
[1175] | 1251 | sync();
|
---|
| 1252 | sync();
|
---|
| 1253 | sync();
|
---|
[128] | 1254 | log_it("Next tape requested.");
|
---|
| 1255 | insist_on_this_tape_number(g_current_media_number + 1); // will increment it, too
|
---|
| 1256 | log_it("Opening IN the next tape");
|
---|
| 1257 | if (!
|
---|
| 1258 | (g_tape_stream =
|
---|
| 1259 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 1260 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 1261 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 1262 | return (1);
|
---|
| 1263 | }
|
---|
| 1264 | g_tape_posK = 0;
|
---|
| 1265 | g_sigpipe = FALSE;
|
---|
| 1266 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1267 | if (ctrlchr != BLK_START_OF_TAPE) {
|
---|
| 1268 | wrong_marker(BLK_START_OF_TAPE, ctrlchr);
|
---|
| 1269 | }
|
---|
| 1270 | res += read_header_block_from_stream(&temp_size, sz_msg, &ctrlchr); /* just in case */
|
---|
| 1271 | if (ctrlchr != BLK_START_OF_BACKUP) {
|
---|
| 1272 | wrong_marker(BLK_START_OF_BACKUP, ctrlchr);
|
---|
| 1273 | } else {
|
---|
[1107] | 1274 | mr_msg(3, "Next tape opened OK. Whoopee!");
|
---|
[128] | 1275 | }
|
---|
[1080] | 1276 | mr_free(sz_msg);
|
---|
[128] | 1277 | return (res);
|
---|
[1] | 1278 | }
|
---|
| 1279 |
|
---|
| 1280 |
|
---|
| 1281 | /**
|
---|
| 1282 | * Start to write to the next tape. Assume the user has already inserted it.
|
---|
| 1283 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1284 | * @return 0 for success, nonzero for failure.
|
---|
| 1285 | */
|
---|
[128] | 1286 | int start_to_write_to_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1287 | {
|
---|
[128] | 1288 | int res = 0;
|
---|
[1175] | 1289 | char *command = NULL;
|
---|
| 1290 |
|
---|
[128] | 1291 | paranoid_pclose(g_tape_stream);
|
---|
[1175] | 1292 | sync();
|
---|
| 1293 | sync();
|
---|
| 1294 | sync();
|
---|
[128] | 1295 | log_it("New tape requested.");
|
---|
| 1296 | insist_on_this_tape_number(g_current_media_number + 1); // will increment g_current_media, too
|
---|
| 1297 | if (bkpinfo->backup_media_type == cdstream) {
|
---|
[1175] | 1298 | mr_asprintf(&command,
|
---|
| 1299 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
[1594] | 1300 | bkpinfo->iso_burning_dev, bkpinfo->writer_speed, MONDO_LOGFILE,
|
---|
[1175] | 1301 | MONDO_LOGFILE);
|
---|
[128] | 1302 | log_it("Opening OUT to next CD with the command");
|
---|
| 1303 | log_it(command);
|
---|
| 1304 | log_it("Let's see what happens, shall we?");
|
---|
| 1305 | g_tape_stream = popen(command, "w");
|
---|
[1175] | 1306 | mr_free(command);
|
---|
[128] | 1307 | if (!g_tape_stream) {
|
---|
[1175] | 1308 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[128] | 1309 | return (1);
|
---|
| 1310 | }
|
---|
| 1311 | } else {
|
---|
| 1312 | log_it("Opening OUT to next tape");
|
---|
| 1313 | if (!
|
---|
| 1314 | (g_tape_stream =
|
---|
| 1315 | open_device_via_buffer(bkpinfo->media_device, 'w',
|
---|
| 1316 | bkpinfo->internal_tape_block_size))) {
|
---|
[1175] | 1317 | log_to_screen(_("Cannot openin stream device"));
|
---|
[128] | 1318 | return (1);
|
---|
| 1319 | }
|
---|
[1] | 1320 | }
|
---|
[128] | 1321 | g_tape_posK = 0;
|
---|
| 1322 | g_sigpipe = FALSE;
|
---|
[684] | 1323 | res += write_header_block_to_stream((off_t)0, "start-of-tape", BLK_START_OF_TAPE); /* just in case */
|
---|
| 1324 | res += write_header_block_to_stream((off_t)0, "start-of-backup", BLK_START_OF_BACKUP); /* just in case */
|
---|
[128] | 1325 | return (res);
|
---|
[1] | 1326 | }
|
---|
| 1327 |
|
---|
| 1328 |
|
---|
| 1329 | /**
|
---|
| 1330 | * Write a bufferfull of the most recent archives to the tape. The
|
---|
| 1331 | * rationale behind this is a bit complex. If the previous tape ended
|
---|
| 1332 | * suddenly (EOF or otherwise) some archives were probably left in the
|
---|
| 1333 | * buffer. That means that Mondo thinks they have been written, but
|
---|
| 1334 | * the external binary @c buffer has not actually written them. So to
|
---|
| 1335 | * be safe, we start the new tape by writing the last bufferfull from
|
---|
| 1336 | * the old one. This insures that all archives will be on at least
|
---|
| 1337 | * one tape. Sounds inelegant, but it works.
|
---|
| 1338 | * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
|
---|
| 1339 | * @return 0 for success, nonzero for failure.
|
---|
| 1340 | */
|
---|
[128] | 1341 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1342 | {
|
---|
[1548] | 1343 | int res = 0;
|
---|
[1175] | 1344 | char *fname = NULL;
|
---|
[1362] | 1345 | struct mr_list_elt *elt = NULL;
|
---|
| 1346 | struct s_tapecat_entry *te = NULL;
|
---|
[1] | 1347 |
|
---|
[1107] | 1348 | mr_msg(2, "I am now writing back catalog to tape");
|
---|
[1369] | 1349 | elt = tapecatalog->first;
|
---|
[1362] | 1350 | while (elt != NULL) {
|
---|
| 1351 | te = (struct s_tapecat_entry *) elt->data;
|
---|
| 1352 | mr_asprintf(&fname, "%s/tmpfs/backcatalog/%s", bkpinfo->tmpdir, te->fname);
|
---|
[128] | 1353 | if (!does_file_exist(fname)) {
|
---|
[1107] | 1354 | mr_msg(6, "Can't write %s - it doesn't exist.", fname);
|
---|
[128] | 1355 | } else {
|
---|
| 1356 | write_header_block_to_stream(length_of_file(fname),
|
---|
| 1357 | "start-backcatalog-afio-or-slice",
|
---|
| 1358 | BLK_START_AN_AFIO_OR_SLICE);
|
---|
[1107] | 1359 | mr_msg(2, "Writing %s", fname);
|
---|
[128] | 1360 | if (write_file_to_stream_from_file(bkpinfo, fname)) {
|
---|
| 1361 | res++;
|
---|
[1107] | 1362 | mr_msg(2, "%s failed", fname);
|
---|
[128] | 1363 | }
|
---|
[1549] | 1364 | if (elt != tapecatalog->last) {
|
---|
[684] | 1365 | write_header_block_to_stream((off_t)0,
|
---|
[128] | 1366 | "stop-backcatalog-afio-or-slice",
|
---|
| 1367 | BLK_STOP_AN_AFIO_OR_SLICE);
|
---|
| 1368 | }
|
---|
| 1369 | }
|
---|
[1175] | 1370 | mr_free(fname);
|
---|
[1362] | 1371 | elt = elt->next;
|
---|
[128] | 1372 | }
|
---|
[1107] | 1373 | mr_msg(2, "Finished writing back catalog to tape");
|
---|
[128] | 1374 | return (res);
|
---|
[1] | 1375 | }
|
---|
| 1376 |
|
---|
| 1377 |
|
---|
| 1378 | /**
|
---|
| 1379 | * Write all.tar.gz (produced by Mindi) to the first 32M of the first tape.
|
---|
| 1380 | * @param fname The path to all.tar.gz.
|
---|
| 1381 | * @return 0 for success, nonzero for failure.
|
---|
| 1382 | */
|
---|
[128] | 1383 | int write_data_disks_to_stream(char *fname)
|
---|
[1] | 1384 | {
|
---|
[128] | 1385 | /*@ pointers *************************************************** */
|
---|
[1175] | 1386 | FILE *fin = NULL;
|
---|
| 1387 | char *tmp = NULL;
|
---|
[1] | 1388 |
|
---|
[128] | 1389 | /*@ long ******************************************************* */
|
---|
| 1390 | long m = -1;
|
---|
| 1391 | long templong;
|
---|
[1] | 1392 |
|
---|
[128] | 1393 | /*@ int ******************************************************** */
|
---|
| 1394 | int i, j;
|
---|
[1] | 1395 |
|
---|
[128] | 1396 | /*@ buffers **************************************************** */
|
---|
| 1397 | char tempblock[256 * 1024];
|
---|
[1] | 1398 |
|
---|
[128] | 1399 | /*@ end vars *************************************************** */
|
---|
[1] | 1400 |
|
---|
[1175] | 1401 | open_evalcall_form(_("Writing data disks to tape"));
|
---|
| 1402 | log_to_screen(_("Writing data disks to tape"));
|
---|
[128] | 1403 | log_it("Data disks = %s", fname);
|
---|
| 1404 | if (!does_file_exist(fname)) {
|
---|
[1175] | 1405 | mr_asprintf(&tmp, _("Cannot find %s"), fname);
|
---|
[128] | 1406 | log_to_screen(tmp);
|
---|
[1175] | 1407 | mr_free(tmp);
|
---|
[128] | 1408 | return (1);
|
---|
[1] | 1409 | }
|
---|
[128] | 1410 | if (!(fin = fopen(fname, "r"))) {
|
---|
| 1411 | log_OS_error(fname);
|
---|
| 1412 | fatal_error("Cannot openin the data disk");
|
---|
| 1413 | }
|
---|
| 1414 | for (i = 0; i < 32; i++) { /* 32MB */
|
---|
| 1415 | for (j = 0; j < 4; j++) { /* 256K x 4 = 1MB (1024K) */
|
---|
| 1416 | if (!feof(fin)) {
|
---|
| 1417 | m = (long) fread(tempblock, 1, 256 * 1024, fin);
|
---|
| 1418 | } else {
|
---|
| 1419 | m = 0;
|
---|
| 1420 | }
|
---|
| 1421 | for (; m < 256 * 1024; m++) {
|
---|
| 1422 | tempblock[m] = '\0';
|
---|
| 1423 | }
|
---|
| 1424 | g_tape_posK +=
|
---|
| 1425 | fwrite(tempblock, 1, 256 * 1024, g_tape_stream) / 1024;
|
---|
| 1426 | }
|
---|
| 1427 | if (i > g_tape_buffer_size_MB) // otherwise, 'buffer' distorts calculations
|
---|
| 1428 | {
|
---|
| 1429 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 1430 | update_evalcall_form((int) (templong));
|
---|
| 1431 | }
|
---|
| 1432 | }
|
---|
| 1433 | paranoid_fclose(fin);
|
---|
| 1434 | close_evalcall_form();
|
---|
| 1435 | return (0);
|
---|
[1] | 1436 | }
|
---|
| 1437 |
|
---|
| 1438 |
|
---|
| 1439 | /**
|
---|
| 1440 | * Copy @p infile to the opened stream (CD or tape).
|
---|
| 1441 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 1442 | * @param infile The file to write to the stream.
|
---|
| 1443 | * @return 0 for success, nonzero for failure.
|
---|
| 1444 | */
|
---|
[128] | 1445 | int write_file_to_stream_from_file(struct s_bkpinfo *bkpinfo, char *infile)
|
---|
[1] | 1446 | {
|
---|
[128] | 1447 | /*@ buffers **************************************************** */
|
---|
[1175] | 1448 | char *tmp = NULL;
|
---|
[1638] | 1449 | char *datablock = NULL;
|
---|
[1175] | 1450 | char *checksum = NULL;
|
---|
| 1451 | char *infile_basename = NULL;
|
---|
[1] | 1452 |
|
---|
[128] | 1453 | /*@ int ******************************************************** */
|
---|
| 1454 | int retval = 0;
|
---|
| 1455 | int noof_blocks;
|
---|
[1] | 1456 |
|
---|
[128] | 1457 | /* unsigned int ch; */
|
---|
| 1458 | unsigned int crc16;
|
---|
| 1459 | unsigned int crctt;
|
---|
[1] | 1460 |
|
---|
[128] | 1461 | /*@ pointers *************************************************** */
|
---|
| 1462 | FILE *fin;
|
---|
| 1463 | char *p;
|
---|
[1] | 1464 |
|
---|
[128] | 1465 | /*@ long ******************************************************* */
|
---|
| 1466 | long bytes_to_read = 0;
|
---|
| 1467 | long i;
|
---|
[1] | 1468 |
|
---|
[684] | 1469 | off_t filesize;
|
---|
[1] | 1470 |
|
---|
| 1471 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1472 | int ch;
|
---|
[1] | 1473 | #endif
|
---|
| 1474 |
|
---|
[128] | 1475 | /*@ initialize ************************************************ */
|
---|
| 1476 | crc16 = 0;
|
---|
| 1477 | crctt = 0;
|
---|
[1638] | 1478 | datablock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[1] | 1479 |
|
---|
[128] | 1480 | /*@ end vars *************************************************** */
|
---|
[1] | 1481 |
|
---|
[128] | 1482 | infile_basename = strrchr(infile, '/');
|
---|
| 1483 | if (infile_basename) {
|
---|
| 1484 | infile_basename++;
|
---|
| 1485 | } else {
|
---|
| 1486 | infile_basename = infile;
|
---|
| 1487 | }
|
---|
| 1488 | filesize = length_of_file(infile);
|
---|
| 1489 | if (should_we_write_to_next_tape
|
---|
[1365] | 1490 | (bkpinfo->media_size, filesize)) {
|
---|
[128] | 1491 | start_to_write_to_next_tape(bkpinfo);
|
---|
| 1492 | write_backcatalog_to_tape(bkpinfo);
|
---|
| 1493 | }
|
---|
| 1494 | p = strrchr(infile, '/');
|
---|
| 1495 | if (!p) {
|
---|
| 1496 | p = infile;
|
---|
| 1497 | } else {
|
---|
| 1498 | p++;
|
---|
| 1499 | }
|
---|
[1175] | 1500 | mr_asprintf(&tmp, "Writing file '%s' to tape (%ld KB)", p,
|
---|
| 1501 | (long) filesize >> 10);
|
---|
[128] | 1502 | log_it(tmp);
|
---|
[1175] | 1503 | mr_free(tmp);
|
---|
| 1504 |
|
---|
[128] | 1505 | write_header_block_to_stream(filesize, infile_basename,
|
---|
| 1506 | BLK_START_FILE);
|
---|
[1] | 1507 | //go_here_to_restart_saving_of_file:
|
---|
[128] | 1508 | if (!(fin = fopen(infile, "r"))) {
|
---|
| 1509 | log_OS_error(infile);
|
---|
| 1510 | return (1);
|
---|
[1] | 1511 | }
|
---|
[128] | 1512 | for (noof_blocks = 0; filesize > 0;
|
---|
| 1513 | noof_blocks++, filesize -= bytes_to_read) {
|
---|
[1638] | 1514 | if (filesize < mr_conf->external_tape_blocksize) {
|
---|
[128] | 1515 | bytes_to_read = (long) filesize;
|
---|
[1638] | 1516 | for (i = 0; i < mr_conf->external_tape_blocksize; i++) {
|
---|
[128] | 1517 | datablock[i] = '\0';
|
---|
| 1518 | }
|
---|
| 1519 | } else {
|
---|
[1638] | 1520 | bytes_to_read = mr_conf->external_tape_blocksize;
|
---|
[128] | 1521 | }
|
---|
| 1522 | (void) fread(datablock, 1, (size_t) bytes_to_read, fin);
|
---|
[1175] | 1523 | g_tape_posK += fwrite(datablock, 1, /*bytes_to_read */
|
---|
[1638] | 1524 | (size_t) mr_conf->external_tape_blocksize,
|
---|
[1175] | 1525 | g_tape_stream) / 1024;
|
---|
[128] | 1526 | if (g_sigpipe) {
|
---|
| 1527 | iamhere("Sigpipe occurred recently. I'll start a new tape.");
|
---|
| 1528 | fclose(fin);
|
---|
| 1529 | g_sigpipe = FALSE;
|
---|
| 1530 | start_to_write_to_next_tape(bkpinfo);
|
---|
| 1531 | write_backcatalog_to_tape(bkpinfo); // kinda-sorta recursive :)
|
---|
| 1532 | return (0);
|
---|
| 1533 | }
|
---|
[1] | 1534 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[128] | 1535 | for (i = 0; i < bytes_to_read; i++) {
|
---|
| 1536 | ch = datablock[i];
|
---|
| 1537 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 1538 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 1539 | }
|
---|
[1] | 1540 | #endif
|
---|
[128] | 1541 | }
|
---|
[1638] | 1542 | paranoid_free(datablock);
|
---|
[128] | 1543 | paranoid_fclose(fin);
|
---|
[1175] | 1544 | mr_asprintf(&checksum, "%04x%04x", crc16, crctt);
|
---|
[684] | 1545 | /* BERLIOS: what does it do ??? */
|
---|
| 1546 | write_header_block_to_stream((off_t)g_current_media_number, checksum,
|
---|
[128] | 1547 | BLK_STOP_FILE);
|
---|
[1175] | 1548 | mr_free(checksum);
|
---|
[1] | 1549 | // log_it("File '%s' written to tape.", infile);
|
---|
[128] | 1550 | return (retval);
|
---|
[1] | 1551 | }
|
---|
| 1552 |
|
---|
| 1553 |
|
---|
| 1554 | /**
|
---|
| 1555 | * Write a header block to the opened stream (CD or tape).
|
---|
| 1556 | * @param length_of_incoming_file The length to store in the header block.
|
---|
| 1557 | * Usually matters only if this is a file-related header, in which case it should
|
---|
| 1558 | * be the length of the file that will follow.
|
---|
| 1559 | * @param filename The filename to store in the header block. Usually matters
|
---|
| 1560 | * only if this is a file-related header, in which case this should be the name
|
---|
| 1561 | * if the file that will follow.
|
---|
| 1562 | * @param control_char The type of header block this is (start-file, end-file, start-tape, ...)
|
---|
| 1563 | * @return 0 for success, nonzero for failure.
|
---|
| 1564 | */
|
---|
| 1565 | int
|
---|
[684] | 1566 | write_header_block_to_stream(off_t length_of_incoming_file,
|
---|
[128] | 1567 | char *filename, int control_char)
|
---|
[1] | 1568 | {
|
---|
[128] | 1569 | /*@ buffers **************************************************** */
|
---|
[1638] | 1570 | char *tempblock;
|
---|
[128] | 1571 | char *p;
|
---|
[1] | 1572 |
|
---|
[128] | 1573 | /*@ int ******************************************************** */
|
---|
| 1574 | int i;
|
---|
[1] | 1575 |
|
---|
[684] | 1576 | off_t olen;
|
---|
[1] | 1577 |
|
---|
[128] | 1578 | /*@ end vars *************************************************** */
|
---|
[1] | 1579 |
|
---|
[1638] | 1580 | tempblock = mr_malloc(mr_conf->external_tape_blocksize);
|
---|
[1] | 1581 |
|
---|
[128] | 1582 | olen = length_of_incoming_file;
|
---|
| 1583 | p = strrchr(filename, '/'); /* Make 'em go, "Unnnh!" Oh wait, that was _Master_ P... */
|
---|
| 1584 | if (!p) {
|
---|
| 1585 | p = filename;
|
---|
| 1586 | } else {
|
---|
| 1587 | p++;
|
---|
| 1588 | }
|
---|
| 1589 | if (!g_tape_stream) {
|
---|
| 1590 | log_to_screen
|
---|
[1175] | 1591 | (_("You're not backing up to tape. Why write a tape header?"));
|
---|
[128] | 1592 | return (1);
|
---|
| 1593 | }
|
---|
[1638] | 1594 | for (i = 0; i < (int) mr_conf->external_tape_blocksize; i++) {
|
---|
[128] | 1595 | tempblock[i] = 0;
|
---|
| 1596 | }
|
---|
| 1597 | sprintf(tempblock + 6000 + control_char, "Mondolicious, baby");
|
---|
| 1598 | tempblock[7000] = control_char;
|
---|
[684] | 1599 | memcpy(tempblock + 7001, (char *) &olen, sizeof(off_t));
|
---|
[128] | 1600 | strcpy(tempblock + 1000, filename);
|
---|
| 1601 | g_tape_posK +=
|
---|
[1638] | 1602 | fwrite(tempblock, 1, (size_t) mr_conf->external_tape_blocksize,
|
---|
[128] | 1603 | g_tape_stream) / 1024;
|
---|
[1638] | 1604 | paranoid_free(tempblock);
|
---|
[1175] | 1605 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
[128] | 1606 | marker_to_string(control_char), p,
|
---|
| 1607 | (long) length_of_incoming_file >> 10);
|
---|
| 1608 | return (0);
|
---|
[1] | 1609 | }
|
---|
| 1610 |
|
---|
| 1611 |
|
---|
| 1612 | /**
|
---|
| 1613 | * Log (to screen) an erroneous marker, along with what it should have been.
|
---|
| 1614 | * @param should_be What we were expecting.
|
---|
| 1615 | * @param it_is What we got.
|
---|
| 1616 | */
|
---|
[128] | 1617 | void wrong_marker(int should_be, int it_is)
|
---|
[1] | 1618 | {
|
---|
[128] | 1619 | /*@ buffer ***************************************************** */
|
---|
[1175] | 1620 | char *tmp = NULL;
|
---|
[1] | 1621 |
|
---|
| 1622 |
|
---|
[128] | 1623 | /*@ end vars *************************************************** */
|
---|
[1175] | 1624 | mr_asprintf(&tmp, _("Wrong marker! (Should be %s, is actually %s)"),
|
---|
| 1625 | marker_to_string(should_be), marker_to_string(it_is));
|
---|
[128] | 1626 | log_to_screen(tmp);
|
---|
[1175] | 1627 | mr_free(tmp);
|
---|
[1] | 1628 | }
|
---|
| 1629 |
|
---|
| 1630 | /* @} - end of streamGroup */
|
---|