[122] | 1 | /* $Id: libmondo-stream.c 1086 2007-02-02 22:21:27Z 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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[122] | 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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[688] | 12 | #include <unistd.h>
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| 13 |
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[1] | 14 | #include "my-stuff.h"
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[1081] | 15 | #include "mr_mem.h"
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[1] | 16 | #include "mondostructures.h"
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| 17 | #include "libmondo-devices.h"
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| 18 | #include "libmondo-stream.h"
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| 19 | #include "libmondo-string-EXT.h"
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| 20 | #include "libmondo-files-EXT.h"
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[507] | 21 | #include "newt-specific-EXT.h"
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[1] | 22 | #include "libmondo-fork-EXT.h"
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| 23 | #include "libmondo-tools-EXT.h"
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| 24 | #include "libmondo-fifo-EXT.h"
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[900] | 25 | #include "mr_mem.h"
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[1] | 26 |
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| 27 | #define EXTRA_TAPE_CHECKSUMS
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| 28 |
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| 29 | extern bool g_sigpipe;
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| 30 | extern int g_tape_buffer_size_MB;
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| 31 |
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[956] | 32 | extern char *g_getfacl;
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| 33 | extern char *g_getfattr;
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| 34 |
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[1] | 35 | /**
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| 36 | * @addtogroup globalGroup
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| 37 | * @{
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| 38 | */
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| 39 | /**
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| 40 | * The file pointer for the opened tape/CD stream.
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| 41 | * Opened and closed by openin_tape(), openin_cdstream(),
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| 42 | * openout_tape(), openout_cdstream(), closein_tape(), closein_cdstream(),
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| 43 | * closeout_tape(), and closeout_cdstream().
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| 44 | */
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| 45 | FILE *g_tape_stream = NULL;
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| 46 |
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| 47 |
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| 48 | /**
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| 49 | * The position (in kilobytes) where we are on the tape.
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| 50 | */
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| 51 | long long g_tape_posK = 0;
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| 52 |
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| 53 | /**
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| 54 | * The current media number we're using. This value is 1-based.
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| 55 | */
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[58] | 56 | int g_current_media_number = -1;
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[1] | 57 |
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| 58 | /**
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| 59 | * The tape catalog that keeps track of files written to tape.
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| 60 | */
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| 61 | struct s_tapecatalog *g_tapecatalog;
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| 62 |
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| 63 | /* @} - end of globalGroup */
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| 64 |
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[58] | 65 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo);
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[1] | 66 |
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| 67 |
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| 68 |
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| 69 |
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| 70 |
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| 71 | /**
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| 72 | * @addtogroup streamGroup
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| 73 | * @{
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| 74 | */
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| 75 | /**
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| 76 | * Close the global output file descriptor which Mondo has used to read
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| 77 | * from the CD stream.
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| 78 | * @param bkpinfo The backup information structure. Passed directly to closein_tape().
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| 79 | * @return 0 for success, nonzero for failure.
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| 80 | * @note This should be called by restore processes only.
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| 81 | */
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[58] | 82 | int closein_cdstream(struct s_bkpinfo *bkpinfo)
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[1] | 83 | {
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[58] | 84 | return (closein_tape(bkpinfo));
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[1] | 85 | }
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| 86 |
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| 87 |
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| 88 | /**
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| 89 | * Close the global output file descriptor which Mondo has used to read
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| 90 | * from buffer or dd, which read from the tape.
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| 91 | * @param bkpinfo The backup information structure. Unused.
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| 92 | * @return 0 for success, nonzero for failure.
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| 93 | * @note This should be called by restore processes only.
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| 94 | * @note This function also works for cdstreams for now, but don't count on this behavior.
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| 95 | * @bug @p bkpinfo parameter is unused.
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| 96 | */
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[58] | 97 | int closein_tape(struct s_bkpinfo *bkpinfo)
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[1] | 98 | {
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[58] | 99 | /*@ int's ******************************************************* */
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| 100 | int retval = 0;
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| 101 | int res = 0;
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| 102 | int ctrl_chr = '\0';
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[1] | 103 |
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[58] | 104 | /*@ long long's ************************************************* */
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| 105 | long long size;
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| 106 | char *blk;
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| 107 | int i;
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[1] | 108 |
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[1081] | 109 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 110 |
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[58] | 111 | log_it("closein_tape() -- entering");
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[122] | 112 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
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[58] | 113 | retval += res;
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| 114 | if (ctrl_chr != BLK_END_OF_BACKUP) {
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| 115 | wrong_marker(BLK_END_OF_BACKUP, ctrl_chr);
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| 116 | }
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[122] | 117 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
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[58] | 118 | retval += res;
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| 119 | if (ctrl_chr != BLK_END_OF_TAPE) {
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| 120 | wrong_marker(BLK_END_OF_TAPE, ctrl_chr);
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| 121 | }
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| 122 | for (i = 0; i < 8 && !feof(g_tape_stream); i++) {
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| 123 | (void) fread(blk, 1, 256 * 1024, g_tape_stream);
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| 124 | }
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| 125 | sleep(1);
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[688] | 126 | sync();
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[58] | 127 | sleep(1);
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| 128 | paranoid_pclose(g_tape_stream);
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| 129 | log_it("closein_tape() -- leaving");
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| 130 | if (!bkpinfo->please_dont_eject) {
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| 131 | eject_device(bkpinfo->media_device);
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| 132 | }
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[900] | 133 | mr_free(blk);
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| 134 | mr_free((void *)g_tapecatalog);
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[58] | 135 | return (retval);
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[1] | 136 | }
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| 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 been using to write
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| 142 | * to the tape device (via buffer or dd).
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| 143 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
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| 144 | * @return 0 for success, nonzero for failure.
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| 145 | * @note This should be called by backup processes only.
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| 146 | */
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[58] | 147 | int closeout_tape(struct s_bkpinfo *bkpinfo)
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[1] | 148 | {
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[58] | 149 | /*@ int's ******************************************************* */
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| 150 | int retval = 0;
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[1] | 151 |
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[58] | 152 | /*@ long long's ************************************************* */
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| 153 | int i;
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| 154 | char *blk;
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[1] | 155 |
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[1081] | 156 | blk = (char *) mr_malloc(256 * 1024);
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[1] | 157 |
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[58] | 158 | sleep(1);
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[688] | 159 | sync();
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[58] | 160 | sleep(1);
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| 161 | log_it("closeout_tape() -- entering");
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| 162 | retval +=
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[687] | 163 | write_header_block_to_stream((off_t)0, "end-of-backup",
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[58] | 164 | BLK_END_OF_BACKUP);
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[687] | 165 | retval += write_header_block_to_stream((off_t)0, "end-of-tape", BLK_END_OF_TAPE); /* just in case */
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[122] | 166 | /* write 1MB of crap */
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[58] | 167 | for (i = 0; i < 256 * 1024; i++) {
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| 168 | blk[i] = (int) (random() & 0xFF);
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| 169 | }
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| 170 | for (i = 0; i < 4 * 8; i++) {
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| 171 | (void) fwrite(blk, 1, 256 * 1024, g_tape_stream);
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| 172 | if (should_we_write_to_next_tape
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[687] | 173 | (bkpinfo->media_size[g_current_media_number], (off_t)256 * 1024)) {
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[58] | 174 | start_to_write_to_next_tape(bkpinfo);
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| 175 | }
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| 176 | }
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| 177 | sleep(2);
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| 178 | paranoid_pclose(g_tape_stream);
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| 179 | log_it("closeout_tape() -- leaving");
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| 180 | for (i = 0; i < g_tapecatalog->entries; i++) {
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| 181 | log_it("i=%d type=%s num=%d aux=%ld posK=%lld", i,
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| 182 | (g_tapecatalog->el[i].type ==
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| 183 | fileset) ? "fileset" : "bigslice",
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| 184 | g_tapecatalog->el[i].number, g_tapecatalog->el[i].aux,
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| 185 | g_tapecatalog->el[i].tape_posK);
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| 186 | }
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[900] | 187 | mr_free(blk);
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| 188 | mr_free((void *)g_tapecatalog);
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[58] | 189 | return (retval);
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[1] | 190 | }
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| 191 |
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| 192 |
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| 193 |
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[58] | 194 | bool mt_says_tape_exists(char *dev)
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[1] | 195 | {
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[58] | 196 | char *command;
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| 197 | int res;
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[1] | 198 |
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[900] | 199 | mr_asprintf(&command, "mt -f %s status", dev);
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[58] | 200 | res = run_program_and_log_output(command, 1);
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[900] | 201 | mr_free(command);
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[58] | 202 | if (res) {
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| 203 | return (FALSE);
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| 204 | } else {
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| 205 | return (TRUE);
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| 206 | }
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[1] | 207 | }
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| 208 |
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| 209 |
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| 210 |
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| 211 | /**
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| 212 | * Determine the name and size of the tape device. Tries the SCSI tape for
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| 213 | * this platform, then the IDE tape, then "/dev/st0", then "/dev/osst0".
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| 214 | * @param dev Where to put the found tape device.
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[146] | 215 | * @param siz Where to put the tape size (a string like "4GB"). Should be freed by caller
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[1] | 216 | * @return 0 if success, nonzero if failure (in which @p dev and @p siz are undefined).
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| 217 | */
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[58] | 218 | int find_tape_device_and_size(char *dev, char *siz)
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[1] | 219 | {
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[688] | 220 | char *tmp = NULL;
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| 221 | char *tmp1 = NULL;
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| 222 | char *command = NULL;
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| 223 | char *cdr_exe = NULL;
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| 224 | int res = 0;
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[1] | 225 |
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[58] | 226 | log_to_screen("I am looking for your tape streamer. Please wait.");
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[688] | 227 | dev = NULL;
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[146] | 228 | siz = NULL;
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[689] | 229 | tmp = find_home_of_exe("cdrecord");
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| 230 | if (tmp) {
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[900] | 231 | mr_asprintf(&cdr_exe, "cdrecord");
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[58] | 232 | } else {
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[900] | 233 | mr_asprintf(&cdr_exe, "dvdrecord");
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[1] | 234 | }
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[900] | 235 | mr_free(tmp);
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[689] | 236 |
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[900] | 237 | mr_asprintf(&command, "%s -scanbus 2> /dev/null | grep -i tape | wc -l",
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[127] | 238 | cdr_exe);
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[688] | 239 | tmp = call_program_and_get_last_line_of_output(command);
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[900] | 240 | mr_free(command);
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[122] | 241 |
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[58] | 242 | if (atoi(tmp) != 1) {
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| 243 | log_it
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| 244 | ("Either too few or too many tape streamers for me to detect...");
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[900] | 245 | mr_asprintf(&dev, VANILLA_SCSI_TAPE"0");
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| 246 | mr_free(tmp);
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| 247 | mr_free(cdr_exe);
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[58] | 248 | return 1;
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| 249 | }
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[900] | 250 | mr_free(tmp);
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[122] | 251 |
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[900] | 252 | mr_asprintf(&command,
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[127] | 253 | "%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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| 254 | cdr_exe);
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[688] | 255 | tmp = call_program_and_get_last_line_of_output(command);
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[900] | 256 | mr_free(command);
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[58] | 257 | if (strlen(tmp) < 2) {
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| 258 | log_it("Could not find tape device");
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[900] | 259 | mr_free(tmp);
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| 260 | mr_free(cdr_exe);
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[58] | 261 | return 1;
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| 262 | }
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[900] | 263 | mr_free(tmp);
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[122] | 264 |
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[900] | 265 | mr_asprintf(&command,
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[127] | 266 | "%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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| 267 | cdr_exe);
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[900] | 268 | mr_free(cdr_exe);
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[122] | 269 |
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[688] | 270 | tmp = call_program_and_get_last_line_of_output(command);
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[900] | 271 | mr_free(command);
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[688] | 272 |
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[900] | 273 | mr_asprintf(&dev, VANILLA_SCSI_TAPE"%s", tmp);
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| 274 | mr_free(tmp);
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[122] | 275 |
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[58] | 276 | if (!mt_says_tape_exists(dev)) {
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[900] | 277 | mr_free(dev);
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[688] | 278 |
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[900] | 279 | mr_asprintf(&dev, ALT_TAPE"%s", tmp);
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[58] | 280 | if (!mt_says_tape_exists(dev)) {
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| 281 | log_it("Cannot openin %s", dev);
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[900] | 282 | mr_free(dev);
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[688] | 283 |
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[900] | 284 | mr_asprintf(&dev, VANILLA_SCSI_TAPE"0");
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[58] | 285 | if (!mt_says_tape_exists(dev)) {
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| 286 | log_it("Cannot openin %s", dev);
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[900] | 287 | mr_free(dev);
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[688] | 288 |
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[900] | 289 | mr_asprintf(&dev, "/dev/osst0");
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[58] | 290 | if (!mt_says_tape_exists(dev)) {
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| 291 | res++;
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| 292 | } else {
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| 293 | res = 0;
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| 294 | }
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| 295 | }
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| 296 | }
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| 297 | }
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[1] | 298 |
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[58] | 299 | log_it("At this point, dev = %s and res = %d", dev, res);
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| 300 |
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[688] | 301 | tmp = call_program_and_get_last_line_of_output("\
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[1] | 302 | cdrecord -scanbus 2> /dev/null | tr -s '\t' ' ' | \
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| 303 | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | \
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[688] | 304 | awk '{for(i=1; i<NF; i++) { if (index($i, \"GB\")>0) { print $i;};};};'");
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[1] | 305 |
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[58] | 306 | if (mt_says_tape_exists(dev)) {
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| 307 | res = 0;
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| 308 | } else {
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| 309 | log_it("Turning %s", dev);
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[900] | 310 | mr_free(tmp);
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| 311 | mr_asprintf(&tmp1,
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[127] | 312 | (strrchr(dev, '/') != NULL) ? strrchr(dev, '/') : dev);
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[900] | 313 | mr_free(dev);
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| 314 | mr_asprintf(&dev, "/dev/os%s", tmp1);
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| 315 | mr_free(tmp1);
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[688] | 316 |
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[58] | 317 | log_it("...into %s", dev);
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| 318 | if (mt_says_tape_exists(dev)) {
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| 319 | res = 0;
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| 320 | } else {
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| 321 | res++;
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| 322 | }
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| 323 | }
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[1] | 324 |
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[58] | 325 | log_it("res=%d; dev=%s", res, dev);
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[1] | 326 |
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[58] | 327 | if (res) {
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[900] | 328 | mr_free(tmp);
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[58] | 329 | return (res);
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| 330 | }
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[1] | 331 |
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[58] | 332 | if (strlen(tmp) < 2) {
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| 333 | log_it("Warning - size of tape unknown");
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[900] | 334 | mr_free(tmp);
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[58] | 335 | return (0);
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| 336 | } else {
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[146] | 337 | siz = tmp;
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[58] | 338 | return (0);
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| 339 | }
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[1] | 340 | }
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| 341 |
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[58] | 342 | int read_EXAT_files_from_tape(struct s_bkpinfo *bkpinfo,
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| 343 | long long *ptmp_size, char *tmp_fname,
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| 344 | int *pctrl_chr, char *xattr_fname,
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| 345 | char *acl_fname)
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[1] | 346 | {
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[58] | 347 | int res = 0;
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| 348 | int retval = 0;
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[979] | 349 | char *fname = (char *)&res; /* Should NOT be NULL */
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[58] | 350 |
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[1] | 351 | // xattr
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[956] | 352 | if (g_getfattr) {
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| 353 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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| 354 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
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| 355 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
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| 356 | }
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| 357 | if (!strstr(fname, "xattr")) {
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| 358 | fatal_error("Wrong order, sunshine.");
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| 359 | }
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| 360 | read_file_from_stream_to_file(bkpinfo, xattr_fname, *ptmp_size);
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| 361 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
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| 362 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
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| 363 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
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| 364 | }
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[1086] | 365 | mr_msg(1, "Got xattr");
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[58] | 366 | }
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[900] | 367 | mr_free(fname);
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[147] | 368 | fname = (char *)&res;
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[58] | 369 | read_file_from_stream_to_file(bkpinfo, xattr_fname, *ptmp_size);
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[122] | 370 | res = read_header_block_from_stream(ptmp_size, NULL, pctrl_chr);
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[58] | 371 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
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| 372 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
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| 373 | }
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[122] | 374 | // acl
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[956] | 375 | if (g_getfacl) {
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| 376 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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| 377 | if (!strstr(fname, "acl")) {
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| 378 | fatal_error("Wrong order, sunshine.");
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| 379 | }
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| 380 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
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| 381 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
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| 382 | }
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| 383 | read_file_from_stream_to_file(bkpinfo, acl_fname, *ptmp_size);
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| 384 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 385 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
| 386 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
| 387 | }
|
---|
| 388 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 389 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
| 390 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 391 | }
|
---|
[1086] | 392 | mr_msg(1, "Got acl");
|
---|
[58] | 393 | }
|
---|
[900] | 394 | mr_free(fname);
|
---|
[147] | 395 | fname = (char *)&res;
|
---|
[58] | 396 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
| 397 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
| 398 | }
|
---|
| 399 | read_file_from_stream_to_file(bkpinfo, acl_fname, *ptmp_size);
|
---|
[122] | 400 | res = read_header_block_from_stream(ptmp_size, NULL, pctrl_chr);
|
---|
[58] | 401 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
| 402 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
| 403 | }
|
---|
[122] | 404 | res = read_header_block_from_stream(ptmp_size, NULL, pctrl_chr);
|
---|
[58] | 405 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
| 406 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 407 | }
|
---|
[122] | 408 | // tarball itself
|
---|
[956] | 409 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
[1086] | 410 | mr_msg(1, "now looking for afioball");
|
---|
[58] | 411 | return (retval);
|
---|
[1] | 412 | }
|
---|
| 413 |
|
---|
| 414 |
|
---|
[58] | 415 | int write_EXAT_files_to_tape(struct s_bkpinfo *bkpinfo, char *xattr_fname,
|
---|
| 416 | char *acl_fname)
|
---|
[1] | 417 | {
|
---|
[58] | 418 | int res = 0;
|
---|
[956] | 419 | if (g_getfattr) {
|
---|
[122] | 420 | // xattr
|
---|
[956] | 421 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 422 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
| 423 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 424 | BLK_START_EXAT_FILE);
|
---|
| 425 | write_file_to_stream_from_file(bkpinfo, xattr_fname);
|
---|
| 426 | write_header_block_to_stream((off_t)-1, xattr_fname, BLK_STOP_EXAT_FILE);
|
---|
| 427 | }
|
---|
| 428 | if (g_getfacl) {
|
---|
| 429 | // acl
|
---|
| 430 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
| 431 | BLK_START_EXAT_FILE);
|
---|
| 432 | write_file_to_stream_from_file(bkpinfo, acl_fname);
|
---|
| 433 | write_header_block_to_stream((off_t)-1, acl_fname, BLK_STOP_EXAT_FILE);
|
---|
| 434 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 435 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
| 436 | }
|
---|
[58] | 437 | return (res);
|
---|
[1] | 438 | }
|
---|
| 439 |
|
---|
| 440 |
|
---|
| 441 |
|
---|
| 442 |
|
---|
| 443 | /**
|
---|
| 444 | * Tell the user to insert tape @p tapeno and wait for it to settle (5 seconds).
|
---|
| 445 | * @param tapeno The tape number to insist on.
|
---|
| 446 | * @bug There is currently no way to actually verify that the user has actually
|
---|
| 447 | * inserted the right tape.
|
---|
| 448 | */
|
---|
| 449 | void insist_on_this_tape_number(int tapeno)
|
---|
| 450 | {
|
---|
[58] | 451 | int i;
|
---|
[122] | 452 | char *tmp;
|
---|
[1] | 453 |
|
---|
[58] | 454 | log_it("Insisting on tape #%d", tapeno);
|
---|
| 455 | if (g_current_media_number != tapeno) {
|
---|
| 456 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
[900] | 457 | mr_asprintf(&tmp,
|
---|
[507] | 458 | _("When the tape drive goes quiet, please insert volume %d in this series."),
|
---|
[127] | 459 | tapeno);
|
---|
[58] | 460 | popup_and_OK(tmp);
|
---|
[900] | 461 | mr_free(tmp);
|
---|
[507] | 462 | open_evalcall_form(_("Waiting while the tape drive settles"));
|
---|
[58] | 463 | } else {
|
---|
[507] | 464 | open_evalcall_form(_("Waiting while the tape drive rewinds"));
|
---|
[58] | 465 | }
|
---|
[1] | 466 |
|
---|
[58] | 467 | for (i = 0; i <= 100; i += 2) {
|
---|
| 468 | usleep(100000);
|
---|
| 469 | update_evalcall_form(i);
|
---|
| 470 | }
|
---|
| 471 | close_evalcall_form();
|
---|
| 472 | log_it("I assume user has inserted it. They _say_ they have...");
|
---|
| 473 | g_current_media_number = tapeno;
|
---|
[1] | 474 |
|
---|
[58] | 475 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
| 476 | log_it("OK, I've finished insisting. On with the revelry.");
|
---|
[1] | 477 | }
|
---|
| 478 |
|
---|
| 479 |
|
---|
| 480 | /**
|
---|
| 481 | * Debugging aid - log the offset we're at on the tape (reading or writing).
|
---|
| 482 | */
|
---|
[58] | 483 | void log_tape_pos(void)
|
---|
[1] | 484 | {
|
---|
[58] | 485 | log_it("Tape position -- %ld KB (%ld MB)", (long) g_tape_posK,
|
---|
| 486 | (long) g_tape_posK >> 10);
|
---|
[1] | 487 | }
|
---|
| 488 |
|
---|
| 489 |
|
---|
| 490 |
|
---|
| 491 |
|
---|
| 492 | /**
|
---|
| 493 | * Add a file to a collection of recently archived filesets/slices.
|
---|
| 494 | * The type is determined by the filename: if it contains ".afio." it is
|
---|
| 495 | * assumed to be a fileset, otherwise if it contains "slice" it's a slice,
|
---|
| 496 | * otherwise we generate a fatal_error().
|
---|
| 497 | * @param td The current @c bkpinfo->tempdir (file will be placed in <tt>td</tt>/tmpfs/backcatalog/).
|
---|
| 498 | * @param latest_fname The file to place in the collection.
|
---|
| 499 | * @return 0, always.
|
---|
| 500 | * @bug Return value is redundant.
|
---|
| 501 | * @bug The detection won't work for uncompressed afioballs (they end in ".afio", no dot afterwards). // Not true. They end in '.' -Hugo
|
---|
| 502 | */
|
---|
| 503 | int maintain_collection_of_recent_archives(char *td, char *latest_fname)
|
---|
| 504 | {
|
---|
[58] | 505 | long long final_alleged_writeK, final_projected_certain_writeK,
|
---|
| 506 | final_actually_certain_writeK = 0, cposK, bufsize_K;
|
---|
| 507 | int last, curr, i;
|
---|
| 508 | t_archtype type = other;
|
---|
[122] | 509 | char *command;
|
---|
| 510 | char *tmpdir;
|
---|
| 511 | char *old_fname;
|
---|
[1] | 512 |
|
---|
[58] | 513 | bufsize_K = (long long) (1024LL * (1 + g_tape_buffer_size_MB));
|
---|
[900] | 514 | mr_asprintf(&tmpdir, "%s/tmpfs/backcatalog", td);
|
---|
[58] | 515 | if (strstr(latest_fname, ".afio.") || strstr(latest_fname, ".star.")) {
|
---|
| 516 | type = fileset;
|
---|
| 517 | } else if (strstr(latest_fname, "slice")) {
|
---|
| 518 | type = biggieslice;
|
---|
| 519 | } else {
|
---|
| 520 | log_it("fname = %s", latest_fname);
|
---|
| 521 | fatal_error
|
---|
| 522 | ("Unknown type. Internal error in maintain_collection_of_recent_archives()");
|
---|
| 523 | }
|
---|
| 524 | mkdir(tmpdir, 0x700);
|
---|
[900] | 525 | mr_asprintf(&command, "cp -f %s %s", latest_fname, tmpdir);
|
---|
[58] | 526 | if (run_program_and_log_output(command, 6)) {
|
---|
| 527 | log_it("Warning - failed to copy %s to backcatalog at %s",
|
---|
| 528 | latest_fname, tmpdir);
|
---|
| 529 | }
|
---|
[900] | 530 | mr_free(command);
|
---|
[122] | 531 |
|
---|
[58] | 532 | last = g_tapecatalog->entries - 1;
|
---|
| 533 | if (last <= 0) {
|
---|
| 534 | iamhere("Too early to start deleting from collection.");
|
---|
| 535 | return (0);
|
---|
| 536 | }
|
---|
| 537 | final_alleged_writeK = g_tapecatalog->el[last].tape_posK;
|
---|
| 538 | final_projected_certain_writeK = final_alleged_writeK - bufsize_K;
|
---|
| 539 | for (curr = last; curr >= 0; curr--) {
|
---|
| 540 | cposK = g_tapecatalog->el[curr].tape_posK;
|
---|
| 541 | if (cposK < final_projected_certain_writeK) {
|
---|
| 542 | final_actually_certain_writeK = cposK;
|
---|
| 543 | break;
|
---|
| 544 | }
|
---|
| 545 | }
|
---|
| 546 | if (curr < 0) {
|
---|
| 547 | iamhere
|
---|
| 548 | ("Not far enough into tape to start deleting old archives from collection.");
|
---|
| 549 | return (0);
|
---|
| 550 | }
|
---|
[1] | 551 | // log_it( "There are %lld KB (more than %d KB) in my backcatalog", final_alleged_writeK - final_actually_certain_writeK, bufsize_K);
|
---|
| 552 |
|
---|
[58] | 553 | for (i = curr - 1; i >= 0 && curr - i < 10; i--) {
|
---|
[900] | 554 | mr_asprintf(&old_fname, "%s/%s", tmpdir, g_tapecatalog->el[i].fname);
|
---|
[58] | 555 | unlink(old_fname);
|
---|
[900] | 556 | mr_free(old_fname);
|
---|
[58] | 557 | }
|
---|
[900] | 558 | mr_free(tmpdir);
|
---|
[58] | 559 | return (0);
|
---|
[1] | 560 | }
|
---|
| 561 |
|
---|
| 562 |
|
---|
| 563 | /**
|
---|
| 564 | * Open the CD stream for input.
|
---|
| 565 | * @param bkpinfo The backup information structure. Passed to openin_tape().
|
---|
| 566 | * @return 0 for success, nonzero for failure.
|
---|
| 567 | * @note Equivalent to openin_tape() for now, but don't count on this behavior.
|
---|
| 568 | */
|
---|
[58] | 569 | int openin_cdstream(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 570 | {
|
---|
[58] | 571 | return (openin_tape(bkpinfo));
|
---|
[1] | 572 | }
|
---|
| 573 |
|
---|
[122] | 574 |
|
---|
[58] | 575 | int set_tape_block_size_with_mt(char *tapedev,
|
---|
| 576 | long internal_tape_block_size)
|
---|
[1] | 577 | {
|
---|
[58] | 578 | char *tmp;
|
---|
| 579 | int res;
|
---|
[1] | 580 |
|
---|
[58] | 581 | if (strncmp(tapedev, "/dev/", 5)) {
|
---|
[1086] | 582 | mr_msg(1,
|
---|
[58] | 583 | "Not using 'mt setblk'. This isn't an actual /dev entry.");
|
---|
| 584 | return (0);
|
---|
| 585 | }
|
---|
[900] | 586 | mr_asprintf(&tmp, "mt -f %s setblk %ld", tapedev,
|
---|
[127] | 587 | internal_tape_block_size);
|
---|
[58] | 588 | res = run_program_and_log_output(tmp, 3);
|
---|
[900] | 589 | mr_free(tmp);
|
---|
[58] | 590 | return (res);
|
---|
[1] | 591 | }
|
---|
| 592 |
|
---|
| 593 |
|
---|
| 594 | /**
|
---|
| 595 | * Open the tape device for input.
|
---|
| 596 | * @param bkpinfo The backup information structure. Fields used:
|
---|
| 597 | * - @c bkpinfo->media_device
|
---|
| 598 | * - @c bkpinfo->tmpdir
|
---|
| 599 | * @return 0 for success, nonzero for failure.
|
---|
| 600 | * @note This will also work with a cdstream for now, but don't count on this behavior.
|
---|
| 601 | */
|
---|
[58] | 602 | int openin_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 603 | {
|
---|
[58] | 604 | /*@ buffer ***************************************************** */
|
---|
| 605 | char *datablock;
|
---|
[122] | 606 | char *tmp;
|
---|
[58] | 607 | char old_cwd[MAX_STR_LEN];
|
---|
[122] | 608 | char *outfname;
|
---|
[58] | 609 | /*@ int ******************************************************* */
|
---|
| 610 | int i;
|
---|
| 611 | int j;
|
---|
| 612 | int res;
|
---|
| 613 | long length, templong;
|
---|
| 614 | size_t k;
|
---|
| 615 | int retval = 0;
|
---|
| 616 | int ctrl_chr;
|
---|
[1] | 617 |
|
---|
[58] | 618 | /*@ long long ************************************************* */
|
---|
| 619 | long long size;
|
---|
[1] | 620 |
|
---|
[58] | 621 | /*@ pointers ************************************************** */
|
---|
| 622 | FILE *fout;
|
---|
[1] | 623 |
|
---|
[58] | 624 | /*@ end vars *************************************************** */
|
---|
[1] | 625 |
|
---|
[58] | 626 | assert_string_is_neither_NULL_nor_zerolength(bkpinfo->media_device);
|
---|
[1081] | 627 | g_tapecatalog = mr_malloc(sizeof(struct s_tapecatalog));
|
---|
[58] | 628 | g_tapecatalog->entries = 0;
|
---|
| 629 | g_tape_posK = 0;
|
---|
| 630 | if (g_tape_stream) {
|
---|
| 631 | log_it("FYI - I won't 'openin' the tape. It's already open.");
|
---|
| 632 | return (0);
|
---|
| 633 | }
|
---|
| 634 | insist_on_this_tape_number(1);
|
---|
[900] | 635 | mr_asprintf(&outfname, "%s/tmp/all.tar.gz", bkpinfo->tmpdir);
|
---|
[58] | 636 | make_hole_for_file(outfname);
|
---|
[1] | 637 |
|
---|
[58] | 638 | set_tape_block_size_with_mt(bkpinfo->media_device,
|
---|
| 639 | bkpinfo->internal_tape_block_size);
|
---|
[1] | 640 |
|
---|
[58] | 641 | log_it("Opening IN tape");
|
---|
| 642 | if (!
|
---|
| 643 | (g_tape_stream =
|
---|
| 644 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 645 | bkpinfo->internal_tape_block_size))) {
|
---|
[507] | 646 | log_to_screen(_("Cannot openin stream device"));
|
---|
[58] | 647 | return (1);
|
---|
| 648 | }
|
---|
[507] | 649 | log_to_screen(_("Reading stream"));
|
---|
[58] | 650 | log_it("stream device = '%s'", bkpinfo->media_device);
|
---|
[1] | 651 | /* skip data disks */
|
---|
[58] | 652 | open_evalcall_form("Skipping data disks on stream");
|
---|
[507] | 653 | log_to_screen(_("Skipping data disks on stream"));
|
---|
[58] | 654 | if (!(fout = fopen(outfname, "w"))) {
|
---|
| 655 | log_OS_error(outfname);
|
---|
[507] | 656 | log_to_screen(_("Cannot openout datadisk all.tar.gz file"));
|
---|
[58] | 657 | return (-1);
|
---|
[1] | 658 | }
|
---|
[1081] | 659 | datablock = (char *) mr_malloc(256 * 1024);
|
---|
[58] | 660 | for (i = 0; i < 32; i++) {
|
---|
| 661 | for (j = 0; j < 4; j++) {
|
---|
| 662 | for (length = 0, k = 0; length < 256 * 1024; length += k) {
|
---|
| 663 | k = fread(datablock + length, 1, 256 * 1024 - length,
|
---|
| 664 | g_tape_stream);
|
---|
| 665 | }
|
---|
| 666 | (void) fwrite(datablock, 1, (size_t) length, fout);
|
---|
| 667 | g_tape_posK += length / 1024;
|
---|
| 668 | }
|
---|
| 669 | if (i > 8) // otherwise, 'buffer' distorts calculations
|
---|
| 670 | {
|
---|
| 671 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 672 | update_evalcall_form((int) (templong));
|
---|
| 673 | }
|
---|
| 674 | }
|
---|
| 675 | paranoid_fclose(fout);
|
---|
[900] | 676 | mr_free(datablock);
|
---|
[122] | 677 | /* find initial blocks */
|
---|
| 678 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
|
---|
[58] | 679 | retval += res;
|
---|
| 680 | if (ctrl_chr != BLK_START_OF_TAPE) {
|
---|
| 681 | wrong_marker(BLK_START_OF_TAPE, ctrl_chr);
|
---|
| 682 | }
|
---|
[122] | 683 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
|
---|
[58] | 684 | retval += res;
|
---|
| 685 | if (ctrl_chr != BLK_START_OF_BACKUP) {
|
---|
| 686 | wrong_marker(BLK_START_OF_BACKUP, ctrl_chr);
|
---|
| 687 | }
|
---|
| 688 | close_evalcall_form();
|
---|
| 689 | log_it("Saved all.tar.gz to '%s'", outfname);
|
---|
| 690 | (void) getcwd(old_cwd, MAX_STR_LEN);
|
---|
| 691 | chdir(bkpinfo->tmpdir);
|
---|
[900] | 692 | mr_asprintf(&tmp, "tar -zxf %s tmp/mondo-restore.cfg 2> /dev/null",
|
---|
[127] | 693 | outfname);
|
---|
[58] | 694 | paranoid_system(tmp);
|
---|
[900] | 695 | mr_free(tmp);
|
---|
[58] | 696 | paranoid_system("cp -f tmp/mondo-restore.cfg . 2> /dev/null");
|
---|
| 697 | chdir(old_cwd);
|
---|
| 698 | unlink(outfname);
|
---|
[900] | 699 | mr_free(outfname);
|
---|
[58] | 700 | return (retval);
|
---|
[1] | 701 | }
|
---|
| 702 |
|
---|
| 703 |
|
---|
| 704 | /**
|
---|
| 705 | * Start writing to a CD stream.
|
---|
| 706 | * @param cddev The CD device to openout via cdrecord.
|
---|
| 707 | * @param speed The speed to write at.
|
---|
| 708 | * @return 0 for success, nonzero for failure.
|
---|
| 709 | * @note This should be called only from backup processes.
|
---|
| 710 | */
|
---|
[58] | 711 | int openout_cdstream(char *cddev, int speed)
|
---|
[1] | 712 | {
|
---|
[58] | 713 | /*@ buffers ***************************************************** */
|
---|
[147] | 714 | char *command;
|
---|
[1] | 715 |
|
---|
[58] | 716 | /*@ end vars *************************************************** */
|
---|
[1] | 717 |
|
---|
[122] | 718 | /* add 'dummy' if testing */
|
---|
[900] | 719 | mr_asprintf(&command,
|
---|
[127] | 720 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 721 | cddev, speed, MONDO_LOGFILE, MONDO_LOGFILE);
|
---|
[122] | 722 | /* initialise the catalog */
|
---|
[58] | 723 | g_current_media_number = 1;
|
---|
[1081] | 724 | g_tapecatalog = mr_malloc(sizeof(struct s_tapecatalog));
|
---|
[58] | 725 | g_tapecatalog->entries = 0;
|
---|
[122] | 726 | /* log stuff */
|
---|
[58] | 727 | log_it("Opening OUT cdstream with the command");
|
---|
| 728 | log_it(command);
|
---|
[122] | 729 | /* log_it("Let's see what happens, shall we?"); */
|
---|
[58] | 730 | g_tape_stream = popen(command, "w");
|
---|
[900] | 731 | mr_free(command);
|
---|
[58] | 732 | if (g_tape_stream) {
|
---|
| 733 | return (0);
|
---|
| 734 | } else {
|
---|
[507] | 735 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[58] | 736 | return (1);
|
---|
| 737 | }
|
---|
[1] | 738 | }
|
---|
| 739 |
|
---|
[122] | 740 |
|
---|
[1] | 741 | /**
|
---|
| 742 | * Start writing to a tape device for the backup.
|
---|
| 743 | * @param tapedev The tape device to open for writing.
|
---|
| 744 | * @return 0 for success, nonzero for failure.
|
---|
| 745 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
| 746 | * EXISTING DATA on the tape!
|
---|
| 747 | */
|
---|
[58] | 748 | int openout_tape(char *tapedev, long internal_tape_block_size)
|
---|
[1] | 749 | {
|
---|
[58] | 750 | g_current_media_number = 1;
|
---|
| 751 | if (g_tape_stream) {
|
---|
| 752 | log_it("FYI - I won't 'openout' the tape. It's already open.");
|
---|
| 753 | return (0);
|
---|
| 754 | }
|
---|
[1081] | 755 | g_tapecatalog = mr_malloc(sizeof(struct s_tapecatalog));
|
---|
[58] | 756 | g_tapecatalog->entries = 0;
|
---|
| 757 | g_tape_posK = 0;
|
---|
| 758 |
|
---|
| 759 | set_tape_block_size_with_mt(tapedev, internal_tape_block_size);
|
---|
| 760 | log_it("Opening OUT tape");
|
---|
| 761 | if (!
|
---|
| 762 | (g_tape_stream =
|
---|
| 763 | open_device_via_buffer(tapedev, 'w', internal_tape_block_size))) {
|
---|
[507] | 764 | log_to_screen(_("Cannot openin stream device"));
|
---|
[58] | 765 | return (1);
|
---|
| 766 | }
|
---|
| 767 | return (0);
|
---|
[1] | 768 | }
|
---|
| 769 |
|
---|
| 770 |
|
---|
| 771 | /**
|
---|
| 772 | * Copy a file from the opened stream (CD or tape) to @p outfile.
|
---|
| 773 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 774 | * @param outfile The file to write to.
|
---|
| 775 | * @param size The size of the file in the input stream.
|
---|
| 776 | * @return 0 for success, nonzero for failure.
|
---|
| 777 | */
|
---|
| 778 | int
|
---|
[58] | 779 | read_file_from_stream_to_file(struct s_bkpinfo *bkpinfo, char *outfile,
|
---|
| 780 | long long size)
|
---|
[1] | 781 | {
|
---|
| 782 |
|
---|
[58] | 783 | /*@ int ******************************************************** */
|
---|
| 784 | int res;
|
---|
[1] | 785 |
|
---|
[58] | 786 | /*@ end vars *************************************************** */
|
---|
[1] | 787 |
|
---|
[58] | 788 | res = read_file_from_stream_FULL(bkpinfo, outfile, NULL, size);
|
---|
[1] | 789 |
|
---|
[58] | 790 | return (res);
|
---|
[1] | 791 | }
|
---|
| 792 |
|
---|
| 793 |
|
---|
| 794 | /**
|
---|
| 795 | * Copy a file from the currently opened stream (CD or tape) to the stream indicated
|
---|
| 796 | * by @p fout.
|
---|
| 797 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 798 | * @param fout The stream to write the file to.
|
---|
| 799 | * @param size The size of the file in bytes.
|
---|
| 800 | * @return 0 for success, nonzero for failure.
|
---|
| 801 | */
|
---|
| 802 | int
|
---|
[58] | 803 | read_file_from_stream_to_stream(struct s_bkpinfo *bkpinfo, FILE * fout,
|
---|
| 804 | long long size)
|
---|
[1] | 805 | {
|
---|
| 806 |
|
---|
[58] | 807 | /*@ int ******************************************************** */
|
---|
| 808 | int res;
|
---|
[1] | 809 |
|
---|
[58] | 810 | /*@ end vars *************************************************** */
|
---|
[1] | 811 |
|
---|
[58] | 812 | res = read_file_from_stream_FULL(bkpinfo, NULL, fout, size);
|
---|
| 813 | return (res);
|
---|
[1] | 814 | }
|
---|
| 815 |
|
---|
| 816 |
|
---|
| 817 | /**
|
---|
| 818 | * Copy a file from the currently opened stream (CD or tape) to either a
|
---|
| 819 | * @c FILE pointer indicating a currently-opened file, or a filename indicating
|
---|
| 820 | * a new file to create. This is the backbone function that read_file_from_stream_to_file()
|
---|
| 821 | * and read_file_from_stream_to_stream() are wrappers for.
|
---|
| 822 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 823 | * @param outfname If non-NULL, write to this file.
|
---|
| 824 | * @param foutstream If non-NULL, write to this stream.
|
---|
| 825 | * @param orig_size The original length of the file in bytes.
|
---|
| 826 | * @return 0 for success, nonzero for failure.
|
---|
| 827 | * @note Only @b one of @p outfname or @p foutstream may be non-NULL.
|
---|
| 828 | */
|
---|
| 829 | int
|
---|
[58] | 830 | read_file_from_stream_FULL(struct s_bkpinfo *bkpinfo, char *outfname,
|
---|
| 831 | FILE * foutstream, long long orig_size)
|
---|
[1] | 832 | {
|
---|
[58] | 833 | /*@ buffers ***************************************************** */
|
---|
| 834 | char *tmp;
|
---|
| 835 | char *datablock;
|
---|
[147] | 836 | char *temp_fname = (char *)bkpinfo; /* Should NOT be NULL */
|
---|
| 837 | char *temp_cksum = (char *)bkpinfo; /* Should NOT be NULL */
|
---|
[58] | 838 | char *actual_cksum;
|
---|
[1] | 839 |
|
---|
[58] | 840 | /*@ int ********************************************************* */
|
---|
| 841 | int retval = 0;
|
---|
[1] | 842 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[58] | 843 | int i, ch;
|
---|
[1] | 844 | #endif
|
---|
[58] | 845 | int noof_blocks;
|
---|
| 846 | int ctrl_chr;
|
---|
| 847 | int res;
|
---|
| 848 | /*@ pointers **************************************************** */
|
---|
| 849 | FILE *fout;
|
---|
[1] | 850 |
|
---|
[58] | 851 | /*@ long ***************************************************** */
|
---|
[122] | 852 | long bytes_to_write = 0;
|
---|
[1] | 853 |
|
---|
[58] | 854 | /*@ long long *************************************************** */
|
---|
| 855 | long long temp_size, size;
|
---|
| 856 | long bytes_read, bytes_to_read;
|
---|
| 857 | long long total_read_from_tape_for_this_file = 0;
|
---|
| 858 | long long where_I_was_before_tape_change = 0;
|
---|
| 859 | /*@ unsigned int ************************************************ */
|
---|
| 860 | unsigned int crc16;
|
---|
| 861 | unsigned int crctt;
|
---|
[1] | 862 |
|
---|
[58] | 863 | bool had_to_resync = FALSE;
|
---|
[1] | 864 |
|
---|
[58] | 865 | /*@ init ******************************************************* */
|
---|
[1081] | 866 | datablock = mr_malloc(TAPE_BLOCK_SIZE);
|
---|
[58] | 867 | crc16 = 0;
|
---|
| 868 | crctt = 0;
|
---|
| 869 | size = orig_size;
|
---|
[1] | 870 |
|
---|
[58] | 871 | /*@ end vars *************************************************** */
|
---|
[1] | 872 |
|
---|
[58] | 873 | res = read_header_block_from_stream(&temp_size, temp_fname, &ctrl_chr);
|
---|
| 874 | if (orig_size != temp_size && orig_size != -1) {
|
---|
[900] | 875 | mr_asprintf(&tmp,
|
---|
[127] | 876 | "output file's size should be %ld K but is apparently %ld K",
|
---|
| 877 | (long) size >> 10, (long) temp_size >> 10);
|
---|
[58] | 878 | log_to_screen(tmp);
|
---|
[900] | 879 | mr_free(tmp);
|
---|
[58] | 880 | }
|
---|
| 881 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 882 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 883 | return (1);
|
---|
| 884 | }
|
---|
[900] | 885 | mr_asprintf(&tmp, "Reading file from tape; writing to '%s'; %ld KB",
|
---|
[127] | 886 | outfname, (long) size >> 10);
|
---|
[122] | 887 | log_to_screen(tmp);
|
---|
[900] | 888 | mr_free(tmp);
|
---|
[1] | 889 |
|
---|
[58] | 890 | if (foutstream) {
|
---|
| 891 | fout = foutstream;
|
---|
| 892 | } else {
|
---|
| 893 | fout = fopen(outfname, "w");
|
---|
[1] | 894 | }
|
---|
[58] | 895 | if (!fout) {
|
---|
| 896 | log_OS_error(outfname);
|
---|
[507] | 897 | log_to_screen(_("Cannot openout file"));
|
---|
[58] | 898 | return (1);
|
---|
| 899 | }
|
---|
| 900 | total_read_from_tape_for_this_file = 0;
|
---|
| 901 | for (noof_blocks = 0; size > 0;
|
---|
| 902 | noof_blocks++, size -=
|
---|
| 903 | bytes_to_write, total_read_from_tape_for_this_file +=
|
---|
| 904 | bytes_read) {
|
---|
| 905 | bytes_to_write =
|
---|
| 906 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
| 907 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
| 908 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 909 | while (bytes_read < bytes_to_read) { // next tape!
|
---|
| 910 | // crctt=crc16=0;
|
---|
| 911 | where_I_was_before_tape_change = size;
|
---|
[1086] | 912 | mr_msg(4, "where_I_was_... = %lld",
|
---|
[58] | 913 | where_I_was_before_tape_change);
|
---|
| 914 | start_to_read_from_next_tape(bkpinfo);
|
---|
[1086] | 915 | mr_msg(4, "Started reading from next tape.");
|
---|
[58] | 916 | skip_incoming_files_until_we_find_this_one(temp_fname);
|
---|
[1086] | 917 | mr_msg(4, "Skipped irrelevant files OK.");
|
---|
[58] | 918 | for (size = orig_size; size > where_I_was_before_tape_change;
|
---|
| 919 | size -= bytes_to_write) {
|
---|
| 920 | bytes_read =
|
---|
| 921 | fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 922 | }
|
---|
[1086] | 923 | mr_msg(4, "'size' is now %lld (should be %lld)", size,
|
---|
[58] | 924 | where_I_was_before_tape_change);
|
---|
| 925 | log_to_screen("Successfully re-sync'd tape");
|
---|
| 926 | had_to_resync = TRUE;
|
---|
| 927 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 928 | }
|
---|
[1] | 929 |
|
---|
[58] | 930 | (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] | 931 |
|
---|
| 932 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[58] | 933 | for (i = 0; i < (int) bytes_to_write; i++) {
|
---|
| 934 | ch = datablock[i];
|
---|
| 935 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 936 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 937 | }
|
---|
[1] | 938 | #endif
|
---|
[58] | 939 | }
|
---|
[1086] | 940 | mr_msg(6, "Total read from tape for this file = %lld",
|
---|
[58] | 941 | total_read_from_tape_for_this_file);
|
---|
[1086] | 942 | mr_msg(6, ".......................... Should be %lld", orig_size);
|
---|
[58] | 943 | g_tape_posK += total_read_from_tape_for_this_file / 1024;
|
---|
[900] | 944 | mr_asprintf(&actual_cksum, "%04x%04x", crc16, crctt);
|
---|
[58] | 945 | if (foutstream) { /*log_it("Finished writing to foutstream"); */
|
---|
| 946 | } else {
|
---|
| 947 | paranoid_fclose(fout);
|
---|
| 948 | }
|
---|
| 949 | res = read_header_block_from_stream(&temp_size, temp_cksum, &ctrl_chr);
|
---|
| 950 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 951 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
[1] | 952 | // fatal_error("Bad marker"); // return(1);
|
---|
[58] | 953 | }
|
---|
| 954 | if (strcmp(temp_cksum, actual_cksum)) {
|
---|
[900] | 955 | mr_asprintf(&tmp, _("actual cksum=%s; recorded cksum=%s"), actual_cksum,
|
---|
[127] | 956 | temp_cksum);
|
---|
[58] | 957 | log_to_screen(tmp);
|
---|
[900] | 958 | mr_free(tmp);
|
---|
[122] | 959 |
|
---|
[900] | 960 | mr_asprintf(&tmp, _("%s (%ld K) is corrupt on tape"), temp_fname,
|
---|
[127] | 961 | (long) orig_size >> 10);
|
---|
[58] | 962 | log_to_screen(tmp);
|
---|
[900] | 963 | mr_free(tmp);
|
---|
[58] | 964 | retval++;
|
---|
| 965 | }
|
---|
[900] | 966 | mr_free(actual_cksum);
|
---|
| 967 | mr_free(datablock);
|
---|
| 968 | mr_free(temp_fname);
|
---|
| 969 | mr_free(temp_cksum);
|
---|
[58] | 970 | return (retval);
|
---|
[1] | 971 | }
|
---|
| 972 |
|
---|
| 973 |
|
---|
| 974 | /**
|
---|
| 975 | * Read a header block from the currently opened stream (CD or tape).
|
---|
| 976 | * This block indicates the length of the following file (if it's file-related)
|
---|
| 977 | * the filename (if it's file-related), and the block type.
|
---|
| 978 | * @param plen Where to put the length of the file. Valid only for file-related header blocks.
|
---|
| 979 | * @param filename Where to put the name of the file. Valid only for file-related header blocks.
|
---|
| 980 | * @param pcontrol_char Where to put the type of block (e.g. start-file, end-file, start-tape, ...)
|
---|
| 981 | * @return 0 for success, nonzero for failure.
|
---|
| 982 | * @note If you read a marker (@p pcontrol_char) you're not expecting, you can call wrong_marker().
|
---|
| 983 | */
|
---|
| 984 | int
|
---|
[58] | 985 | read_header_block_from_stream(long long *plen, char *filename,
|
---|
| 986 | int *pcontrol_char)
|
---|
[1] | 987 | {
|
---|
| 988 |
|
---|
[58] | 989 | /*@ buffers ***************************************************** */
|
---|
| 990 | char *tempblock;
|
---|
[1] | 991 |
|
---|
[58] | 992 | /*@ int ********************************************************* */
|
---|
| 993 | int i, retval;
|
---|
[1] | 994 |
|
---|
[58] | 995 | /*@ end vars *************************************************** */
|
---|
[1] | 996 |
|
---|
[1081] | 997 | tempblock = (char *) mr_malloc((size_t) TAPE_BLOCK_SIZE);
|
---|
[1] | 998 |
|
---|
[58] | 999 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
| 1000 | tempblock[i] = 0;
|
---|
| 1001 | }
|
---|
| 1002 | while (!(*pcontrol_char = tempblock[7000])) {
|
---|
| 1003 | g_tape_posK +=
|
---|
| 1004 | fread(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1005 | g_tape_stream) / 1024;
|
---|
| 1006 | }
|
---|
| 1007 | memcpy((char *) plen, tempblock + 7001, sizeof(long long));
|
---|
| 1008 | if (strcmp(tempblock + 6000 + *pcontrol_char, "Mondolicious, baby")) {
|
---|
| 1009 | log_it("Bad header block at %ld K", (long) g_tape_posK);
|
---|
| 1010 | }
|
---|
[122] | 1011 | /* the caller manages whether we should allocate or not
|
---|
| 1012 | * by setting the value to NULL (do not allocate) or
|
---|
| 1013 | * something (allocate) */
|
---|
| 1014 | if (filename != NULL) {
|
---|
[900] | 1015 | mr_asprintf(&filename, tempblock + 1000);
|
---|
[122] | 1016 | }
|
---|
[58] | 1017 | if (*pcontrol_char == BLK_ABORTED_BACKUP) {
|
---|
| 1018 | log_to_screen("I can't verify an aborted backup.");
|
---|
| 1019 | retval = 1;
|
---|
| 1020 | } else {
|
---|
| 1021 | retval = 0;
|
---|
| 1022 | }
|
---|
| 1023 | for (i = 1000; i < 1020; i++) {
|
---|
| 1024 | if (tempblock[i] < 32 || tempblock[i] > 126) {
|
---|
| 1025 | tempblock[i] = ' ';
|
---|
| 1026 | }
|
---|
| 1027 | }
|
---|
| 1028 | tempblock[i] = '\0';
|
---|
[1086] | 1029 | mr_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
[58] | 1030 | marker_to_string(*pcontrol_char), tempblock + 1000,
|
---|
| 1031 | (long) (*plen) >> 10);
|
---|
[900] | 1032 | mr_free(tempblock);
|
---|
[58] | 1033 | return (retval);
|
---|
[1] | 1034 | }
|
---|
| 1035 |
|
---|
| 1036 |
|
---|
| 1037 | /**
|
---|
| 1038 | * Add specified file/slice to the internal catalog of all archives written.
|
---|
| 1039 | * This lets us restart on a new CD/tape/whatever if it runs out of room. We just
|
---|
| 1040 | * write the last [buffer size] MB from the catalog to the new tape, so we know
|
---|
| 1041 | * we have @e all archives on some CD/tape/whatever.
|
---|
| 1042 | * @param type The type of file we're cataloging (afioball, slice, something else)
|
---|
| 1043 | * @param number The fileset number or biggiefile number.
|
---|
| 1044 | * @param aux The slice number if it's a biggiefile, or any other additional info.
|
---|
| 1045 | * @param fn The original full pathname of the file we're recording.
|
---|
| 1046 | * @return The index of the record we just added.
|
---|
| 1047 | */
|
---|
[58] | 1048 | int register_in_tape_catalog(t_archtype type, int number, long aux,
|
---|
| 1049 | char *fn)
|
---|
[1] | 1050 | {
|
---|
[58] | 1051 | int last;
|
---|
| 1052 | char fname[MAX_TAPECAT_FNAME_LEN];
|
---|
| 1053 | char *p;
|
---|
[1] | 1054 |
|
---|
[58] | 1055 | p = strrchr(fn, '/');
|
---|
| 1056 | if (p) {
|
---|
| 1057 | p++;
|
---|
| 1058 | } else {
|
---|
| 1059 | p = fn;
|
---|
| 1060 | }
|
---|
| 1061 | strncpy(fname, p, MAX_TAPECAT_FNAME_LEN);
|
---|
| 1062 | fname[MAX_TAPECAT_FNAME_LEN] = '\0';
|
---|
| 1063 | last = g_tapecatalog->entries;
|
---|
| 1064 | if (last >= MAX_TAPECATALOG_ENTRIES) {
|
---|
| 1065 | log_it
|
---|
| 1066 | ("Warning - can't log #%d in tape catalog - too many entries already",
|
---|
| 1067 | number);
|
---|
| 1068 | return (-1);
|
---|
| 1069 | }
|
---|
| 1070 | g_tapecatalog->el[last].type = type;
|
---|
| 1071 | g_tapecatalog->el[last].number = number;
|
---|
| 1072 | g_tapecatalog->el[last].aux = aux;
|
---|
| 1073 | g_tapecatalog->el[last].tape_posK = g_tape_posK;
|
---|
| 1074 | strcpy(g_tapecatalog->el[last].fname, fname);
|
---|
| 1075 | g_tapecatalog->entries++;
|
---|
| 1076 | return (last); // returns the index of the record we've jsut added
|
---|
[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 | */
|
---|
[687] | 1088 |
|
---|
| 1089 | /* BERLIOS: Should be reviewed for mediasize being a off_t ??? */
|
---|
[1] | 1090 | bool
|
---|
[58] | 1091 | should_we_write_to_next_tape(long mediasize,
|
---|
[687] | 1092 | off_t length_of_incoming_file)
|
---|
[1] | 1093 | {
|
---|
[58] | 1094 | /*@ bool's ***************************************************** */
|
---|
| 1095 | bool we_need_a_new_tape = FALSE;
|
---|
[1] | 1096 |
|
---|
[58] | 1097 | /*@ end vars *************************************************** */
|
---|
[1] | 1098 |
|
---|
[58] | 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;
|
---|
[507] | 1105 | log_to_screen(_("Should have started a new tape/CD already"));
|
---|
[58] | 1106 | }
|
---|
| 1107 | if ((g_tape_posK + length_of_incoming_file / 1024) >> 10 >=
|
---|
| 1108 | mediasize - (SLICE_SIZE * 4 / 1024)) {
|
---|
| 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 | */
|
---|
[58] | 1124 | int skip_incoming_files_until_we_find_this_one(char
|
---|
| 1125 | *the_file_I_was_reading)
|
---|
[1] | 1126 | {
|
---|
[58] | 1127 | char *pA;
|
---|
| 1128 | char *pB;
|
---|
| 1129 | int res;
|
---|
| 1130 | int ctrl_chr;
|
---|
[147] | 1131 | char *temp_fname = (char *)&res; /* should NOT be NULL */
|
---|
[58] | 1132 | char *datablock;
|
---|
| 1133 | long long temp_size, size;
|
---|
| 1134 | long bytes_to_write;
|
---|
[1] | 1135 |
|
---|
[1081] | 1136 | datablock = mr_malloc(TAPE_BLOCK_SIZE);
|
---|
[58] | 1137 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1138 | if (pB) {
|
---|
| 1139 | pB++;
|
---|
| 1140 | } else {
|
---|
| 1141 | pB = the_file_I_was_reading;
|
---|
[1] | 1142 | }
|
---|
[1086] | 1143 | mr_msg(1, "skip_incoming_..(%s)", pB);
|
---|
| 1144 | mr_msg(2, "Looking for initial START_AN_AFIO_OR_SLICE");
|
---|
[58] | 1145 | ctrl_chr = -1;
|
---|
| 1146 | while (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1147 | res =
|
---|
| 1148 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1149 | &ctrl_chr);
|
---|
| 1150 | if (ctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1151 | break;
|
---|
| 1152 | }
|
---|
[1086] | 1153 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[58] | 1154 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
[1086] | 1155 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[900] | 1156 | mr_free(temp_fname);
|
---|
[147] | 1157 | temp_fname = (char *)&res;
|
---|
[58] | 1158 | }
|
---|
| 1159 | while (ctrl_chr != BLK_START_FILE) {
|
---|
| 1160 | res =
|
---|
| 1161 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1162 | &ctrl_chr);
|
---|
| 1163 | if (ctrl_chr == BLK_START_FILE) {
|
---|
| 1164 | break;
|
---|
| 1165 | }
|
---|
[1086] | 1166 | mr_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
[58] | 1167 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
[1086] | 1168 | mr_msg(3, "Still trying to re-sync w/ tape");
|
---|
[122] | 1169 | /* Do not desallocate when the while condition is met */
|
---|
| 1170 | if (ctrl_chr != BLK_START_FILE) {
|
---|
[900] | 1171 | mr_free(temp_fname);
|
---|
[147] | 1172 | temp_fname = (char *)&res;
|
---|
[122] | 1173 | }
|
---|
[58] | 1174 | }
|
---|
| 1175 | pA = strrchr(temp_fname, '/');
|
---|
| 1176 | if (pA) {
|
---|
| 1177 | pA++;
|
---|
| 1178 | } else {
|
---|
| 1179 | pA = temp_fname;
|
---|
| 1180 | }
|
---|
| 1181 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1182 | if (pB) {
|
---|
| 1183 | pB++;
|
---|
| 1184 | } else {
|
---|
| 1185 | pB = the_file_I_was_reading;
|
---|
| 1186 | }
|
---|
| 1187 | while (strcmp(pA, pB)) {
|
---|
[1086] | 1188 | mr_msg(6, "Skipping %s (it's not %s)", temp_fname,
|
---|
[58] | 1189 | the_file_I_was_reading);
|
---|
| 1190 | for (size = temp_size; size > 0; size -= bytes_to_write) {
|
---|
| 1191 | bytes_to_write =
|
---|
| 1192 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
| 1193 | // FIXME - needs error-checking and -catching
|
---|
| 1194 | fread(datablock, 1, (size_t) TAPE_BLOCK_SIZE, g_tape_stream);
|
---|
| 1195 | }
|
---|
[127] | 1196 |
|
---|
[900] | 1197 | mr_free(temp_fname);
|
---|
[147] | 1198 | temp_fname = (char *)&res;
|
---|
[127] | 1199 | res = read_header_block_from_stream(&temp_size, NULL, &ctrl_chr);
|
---|
[58] | 1200 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 1201 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
| 1202 | }
|
---|
[127] | 1203 | res = read_header_block_from_stream(&temp_size, NULL, &ctrl_chr);
|
---|
[58] | 1204 | if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
|
---|
| 1205 | wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1206 | }
|
---|
[127] | 1207 | res = read_header_block_from_stream(&temp_size, NULL, &ctrl_chr);
|
---|
[58] | 1208 | if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1209 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1210 | }
|
---|
| 1211 | res =
|
---|
| 1212 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1213 | &ctrl_chr);
|
---|
| 1214 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 1215 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1216 | }
|
---|
| 1217 | pA = strrchr(temp_fname, '/');
|
---|
| 1218 | if (pA) {
|
---|
| 1219 | pA++;
|
---|
| 1220 | } else {
|
---|
| 1221 | pA = temp_fname;
|
---|
| 1222 | }
|
---|
[122] | 1223 | /* BERLIOS: useless ?
|
---|
[127] | 1224 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1225 | if (pB) {
|
---|
| 1226 | pB++;
|
---|
| 1227 | } else {
|
---|
| 1228 | pB = the_file_I_was_reading;
|
---|
| 1229 | }
|
---|
| 1230 | */
|
---|
[58] | 1231 | }
|
---|
[1086] | 1232 | mr_msg(2, "Reading %s (it matches %s)", temp_fname,
|
---|
[58] | 1233 | the_file_I_was_reading);
|
---|
[900] | 1234 | mr_free(temp_fname);
|
---|
| 1235 | mr_free(datablock);
|
---|
[58] | 1236 | return (0);
|
---|
[1] | 1237 | }
|
---|
| 1238 |
|
---|
| 1239 |
|
---|
| 1240 | /**
|
---|
| 1241 | * Start to read from the next tape. Assumes the user has already inserted it.
|
---|
| 1242 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1243 | * @return 0 for success, nonzero for failure.
|
---|
| 1244 | */
|
---|
[58] | 1245 | int start_to_read_from_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1246 | {
|
---|
[58] | 1247 | /*@ int ********************************************************* */
|
---|
| 1248 | int res = 0;
|
---|
| 1249 | int ctrlchr;
|
---|
| 1250 | long long temp_size;
|
---|
| 1251 | /*@ end vars *************************************************** */
|
---|
[1] | 1252 |
|
---|
[58] | 1253 | paranoid_pclose(g_tape_stream);
|
---|
[688] | 1254 | sync();
|
---|
| 1255 | sync();
|
---|
| 1256 | sync();
|
---|
[58] | 1257 | log_it("Next tape requested.");
|
---|
| 1258 | insist_on_this_tape_number(g_current_media_number + 1); // will increment it, too
|
---|
| 1259 | log_it("Opening IN the next tape");
|
---|
| 1260 | if (!
|
---|
| 1261 | (g_tape_stream =
|
---|
| 1262 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 1263 | bkpinfo->internal_tape_block_size))) {
|
---|
[507] | 1264 | log_to_screen(_("Cannot openin stream device"));
|
---|
[58] | 1265 | return (1);
|
---|
| 1266 | }
|
---|
| 1267 | g_tape_posK = 0;
|
---|
| 1268 | g_sigpipe = FALSE;
|
---|
[122] | 1269 | res += read_header_block_from_stream(&temp_size, NULL, &ctrlchr); /* just in case */
|
---|
[58] | 1270 | if (ctrlchr != BLK_START_OF_TAPE) {
|
---|
| 1271 | wrong_marker(BLK_START_OF_TAPE, ctrlchr);
|
---|
| 1272 | }
|
---|
[122] | 1273 | res += read_header_block_from_stream(&temp_size, NULL, &ctrlchr); /* just in case */
|
---|
[58] | 1274 | if (ctrlchr != BLK_START_OF_BACKUP) {
|
---|
| 1275 | wrong_marker(BLK_START_OF_BACKUP, ctrlchr);
|
---|
| 1276 | } else {
|
---|
[1086] | 1277 | mr_msg(3, "Next tape opened OK. Whoopee!");
|
---|
[58] | 1278 | }
|
---|
| 1279 | return (res);
|
---|
[1] | 1280 | }
|
---|
| 1281 |
|
---|
| 1282 |
|
---|
| 1283 | /**
|
---|
| 1284 | * Start to write to the next tape. Assume the user has already inserted it.
|
---|
| 1285 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1286 | * @return 0 for success, nonzero for failure.
|
---|
| 1287 | */
|
---|
[58] | 1288 | int start_to_write_to_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1289 | {
|
---|
[58] | 1290 | int res = 0;
|
---|
[122] | 1291 | char *command;
|
---|
| 1292 |
|
---|
[58] | 1293 | paranoid_pclose(g_tape_stream);
|
---|
[688] | 1294 | sync();
|
---|
| 1295 | sync();
|
---|
| 1296 | sync();
|
---|
[58] | 1297 | log_it("New tape requested.");
|
---|
| 1298 | insist_on_this_tape_number(g_current_media_number + 1); // will increment g_current_media, too
|
---|
| 1299 | if (g_current_media_number > MAX_NOOF_MEDIA) {
|
---|
| 1300 | res++;
|
---|
[507] | 1301 | log_to_screen(_("Too many tapes. Man, you need to use nfs!"));
|
---|
[1] | 1302 | }
|
---|
[58] | 1303 | if (bkpinfo->backup_media_type == cdstream) {
|
---|
[900] | 1304 | mr_asprintf(&command,
|
---|
[127] | 1305 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 1306 | bkpinfo->media_device, bkpinfo->cdrw_speed, MONDO_LOGFILE,
|
---|
| 1307 | MONDO_LOGFILE);
|
---|
[58] | 1308 | log_it("Opening OUT to next CD with the command");
|
---|
| 1309 | log_it(command);
|
---|
| 1310 | log_it("Let's see what happens, shall we?");
|
---|
| 1311 | g_tape_stream = popen(command, "w");
|
---|
[900] | 1312 | mr_free(command);
|
---|
[58] | 1313 | if (!g_tape_stream) {
|
---|
[507] | 1314 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[58] | 1315 | return (1);
|
---|
| 1316 | }
|
---|
| 1317 | } else {
|
---|
| 1318 | log_it("Opening OUT to next tape");
|
---|
| 1319 | if (!
|
---|
| 1320 | (g_tape_stream =
|
---|
| 1321 | open_device_via_buffer(bkpinfo->media_device, 'w',
|
---|
| 1322 | bkpinfo->internal_tape_block_size))) {
|
---|
[507] | 1323 | log_to_screen(_("Cannot openin stream device"));
|
---|
[58] | 1324 | return (1);
|
---|
| 1325 | }
|
---|
[1] | 1326 | }
|
---|
[58] | 1327 | g_tape_posK = 0;
|
---|
| 1328 | g_sigpipe = FALSE;
|
---|
[687] | 1329 | res += write_header_block_to_stream((off_t)0, "start-of-tape", BLK_START_OF_TAPE); /* just in case */
|
---|
| 1330 | res += write_header_block_to_stream((off_t)0, "start-of-backup", BLK_START_OF_BACKUP); /* just in case */
|
---|
[58] | 1331 | return (res);
|
---|
[1] | 1332 | }
|
---|
| 1333 |
|
---|
| 1334 |
|
---|
| 1335 | /**
|
---|
| 1336 | * Write a bufferfull of the most recent archives to the tape. The
|
---|
| 1337 | * rationale behind this is a bit complex. If the previous tape ended
|
---|
| 1338 | * suddenly (EOF or otherwise) some archives were probably left in the
|
---|
| 1339 | * buffer. That means that Mondo thinks they have been written, but
|
---|
| 1340 | * the external binary @c buffer has not actually written them. So to
|
---|
| 1341 | * be safe, we start the new tape by writing the last bufferfull from
|
---|
| 1342 | * the old one. This insures that all archives will be on at least
|
---|
| 1343 | * one tape. Sounds inelegant, but it works.
|
---|
| 1344 | * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
|
---|
| 1345 | * @return 0 for success, nonzero for failure.
|
---|
| 1346 | */
|
---|
[58] | 1347 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1348 | {
|
---|
[58] | 1349 | int i, last, res = 0;
|
---|
| 1350 | char *fname;
|
---|
[1] | 1351 |
|
---|
[1086] | 1352 | mr_msg(2, "I am now writing back catalog to tape");
|
---|
[58] | 1353 | last = g_tapecatalog->entries - 1;
|
---|
| 1354 | for (i = 0; i <= last; i++) {
|
---|
[900] | 1355 | mr_asprintf(&fname, "%s/tmpfs/backcatalog/%s", bkpinfo->tmpdir,
|
---|
[127] | 1356 | g_tapecatalog->el[i].fname);
|
---|
[58] | 1357 | if (!does_file_exist(fname)) {
|
---|
[1086] | 1358 | mr_msg(6, "Can't write %s - it doesn't exist.", fname);
|
---|
[58] | 1359 | } else {
|
---|
| 1360 | write_header_block_to_stream(length_of_file(fname),
|
---|
| 1361 | "start-backcatalog-afio-or-slice",
|
---|
| 1362 | BLK_START_AN_AFIO_OR_SLICE);
|
---|
[1086] | 1363 | mr_msg(2, "Writing %s", fname);
|
---|
[58] | 1364 | if (write_file_to_stream_from_file(bkpinfo, fname)) {
|
---|
| 1365 | res++;
|
---|
[1086] | 1366 | mr_msg(2, "%s failed", fname);
|
---|
[58] | 1367 | }
|
---|
| 1368 | if (i != last) {
|
---|
[687] | 1369 | write_header_block_to_stream((off_t)0,
|
---|
[58] | 1370 | "stop-backcatalog-afio-or-slice",
|
---|
| 1371 | BLK_STOP_AN_AFIO_OR_SLICE);
|
---|
| 1372 | }
|
---|
| 1373 | }
|
---|
[900] | 1374 | mr_free(fname);
|
---|
[58] | 1375 | }
|
---|
[1086] | 1376 | mr_msg(2, "Finished writing back catalog to tape");
|
---|
[58] | 1377 | return (res);
|
---|
[1] | 1378 | }
|
---|
| 1379 |
|
---|
| 1380 |
|
---|
| 1381 | /**
|
---|
| 1382 | * Write all.tar.gz (produced by Mindi) to the first 32M of the first tape.
|
---|
| 1383 | * @param fname The path to all.tar.gz.
|
---|
| 1384 | * @return 0 for success, nonzero for failure.
|
---|
| 1385 | */
|
---|
[58] | 1386 | int write_data_disks_to_stream(char *fname)
|
---|
[1] | 1387 | {
|
---|
[58] | 1388 | /*@ pointers *************************************************** */
|
---|
| 1389 | FILE *fin;
|
---|
[122] | 1390 | char *tmp;
|
---|
[1] | 1391 |
|
---|
[58] | 1392 | /*@ long ******************************************************* */
|
---|
| 1393 | long m = -1;
|
---|
| 1394 | long templong;
|
---|
[1] | 1395 |
|
---|
[58] | 1396 | /*@ int ******************************************************** */
|
---|
| 1397 | int i, j;
|
---|
[1] | 1398 |
|
---|
[58] | 1399 | /*@ buffers **************************************************** */
|
---|
| 1400 | char tempblock[256 * 1024];
|
---|
[1] | 1401 |
|
---|
[58] | 1402 | /*@ end vars *************************************************** */
|
---|
[1] | 1403 |
|
---|
[507] | 1404 | open_evalcall_form(_("Writing data disks to tape"));
|
---|
| 1405 | log_to_screen(_("Writing data disks to tape"));
|
---|
[58] | 1406 | log_it("Data disks = %s", fname);
|
---|
| 1407 | if (!does_file_exist(fname)) {
|
---|
[900] | 1408 | mr_asprintf(&tmp, _("Cannot find %s"), fname);
|
---|
[58] | 1409 | log_to_screen(tmp);
|
---|
[900] | 1410 | mr_free(tmp);
|
---|
[58] | 1411 | return (1);
|
---|
[1] | 1412 | }
|
---|
[58] | 1413 | if (!(fin = fopen(fname, "r"))) {
|
---|
| 1414 | log_OS_error(fname);
|
---|
| 1415 | fatal_error("Cannot openin the data disk");
|
---|
| 1416 | }
|
---|
| 1417 | for (i = 0; i < 32; i++) { /* 32MB */
|
---|
| 1418 | for (j = 0; j < 4; j++) { /* 256K x 4 = 1MB (1024K) */
|
---|
| 1419 | if (!feof(fin)) {
|
---|
| 1420 | m = (long) fread(tempblock, 1, 256 * 1024, fin);
|
---|
| 1421 | } else {
|
---|
| 1422 | m = 0;
|
---|
| 1423 | }
|
---|
| 1424 | for (; m < 256 * 1024; m++) {
|
---|
| 1425 | tempblock[m] = '\0';
|
---|
| 1426 | }
|
---|
| 1427 | g_tape_posK +=
|
---|
| 1428 | fwrite(tempblock, 1, 256 * 1024, g_tape_stream) / 1024;
|
---|
| 1429 | }
|
---|
| 1430 | if (i > g_tape_buffer_size_MB) // otherwise, 'buffer' distorts calculations
|
---|
| 1431 | {
|
---|
| 1432 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 1433 | update_evalcall_form((int) (templong));
|
---|
| 1434 | }
|
---|
| 1435 | }
|
---|
| 1436 | paranoid_fclose(fin);
|
---|
| 1437 | close_evalcall_form();
|
---|
| 1438 | return (0);
|
---|
[1] | 1439 | }
|
---|
| 1440 |
|
---|
| 1441 |
|
---|
| 1442 | /**
|
---|
| 1443 | * Copy @p infile to the opened stream (CD or tape).
|
---|
| 1444 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 1445 | * @param infile The file to write to the stream.
|
---|
| 1446 | * @return 0 for success, nonzero for failure.
|
---|
| 1447 | */
|
---|
[58] | 1448 | int write_file_to_stream_from_file(struct s_bkpinfo *bkpinfo, char *infile)
|
---|
[1] | 1449 | {
|
---|
[58] | 1450 | /*@ buffers **************************************************** */
|
---|
[122] | 1451 | char *tmp;
|
---|
[58] | 1452 | char datablock[TAPE_BLOCK_SIZE];
|
---|
[122] | 1453 | char *checksum;
|
---|
[58] | 1454 | char *infile_basename;
|
---|
[1] | 1455 |
|
---|
[58] | 1456 | /*@ int ******************************************************** */
|
---|
| 1457 | int retval = 0;
|
---|
| 1458 | int noof_blocks;
|
---|
[1] | 1459 |
|
---|
[58] | 1460 | /* unsigned int ch; */
|
---|
| 1461 | unsigned int crc16;
|
---|
| 1462 | unsigned int crctt;
|
---|
[1] | 1463 |
|
---|
[58] | 1464 | /*@ pointers *************************************************** */
|
---|
| 1465 | FILE *fin;
|
---|
| 1466 | char *p;
|
---|
[1] | 1467 |
|
---|
[58] | 1468 | /*@ long ******************************************************* */
|
---|
| 1469 | long bytes_to_read = 0;
|
---|
| 1470 | long i;
|
---|
[1] | 1471 |
|
---|
[687] | 1472 | off_t filesize;
|
---|
[1] | 1473 |
|
---|
| 1474 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[58] | 1475 | int ch;
|
---|
[1] | 1476 | #endif
|
---|
| 1477 |
|
---|
[58] | 1478 | /*@ initialize ************************************************ */
|
---|
| 1479 | crc16 = 0;
|
---|
| 1480 | crctt = 0;
|
---|
[1] | 1481 |
|
---|
[58] | 1482 | /*@ end vars *************************************************** */
|
---|
[1] | 1483 |
|
---|
[58] | 1484 | infile_basename = strrchr(infile, '/');
|
---|
| 1485 | if (infile_basename) {
|
---|
| 1486 | infile_basename++;
|
---|
| 1487 | } else {
|
---|
| 1488 | infile_basename = infile;
|
---|
| 1489 | }
|
---|
| 1490 | filesize = length_of_file(infile);
|
---|
| 1491 | if (should_we_write_to_next_tape
|
---|
| 1492 | (bkpinfo->media_size[g_current_media_number], filesize)) {
|
---|
| 1493 | start_to_write_to_next_tape(bkpinfo);
|
---|
| 1494 | write_backcatalog_to_tape(bkpinfo);
|
---|
| 1495 | }
|
---|
| 1496 | p = strrchr(infile, '/');
|
---|
| 1497 | if (!p) {
|
---|
| 1498 | p = infile;
|
---|
| 1499 | } else {
|
---|
| 1500 | p++;
|
---|
| 1501 | }
|
---|
[900] | 1502 | mr_asprintf(&tmp, "Writing file '%s' to tape (%ld KB)", p,
|
---|
[127] | 1503 | (long) filesize >> 10);
|
---|
[58] | 1504 | log_it(tmp);
|
---|
[900] | 1505 | mr_free(tmp);
|
---|
[122] | 1506 |
|
---|
[58] | 1507 | write_header_block_to_stream(filesize, infile_basename,
|
---|
| 1508 | BLK_START_FILE);
|
---|
[1] | 1509 | //go_here_to_restart_saving_of_file:
|
---|
[58] | 1510 | if (!(fin = fopen(infile, "r"))) {
|
---|
| 1511 | log_OS_error(infile);
|
---|
| 1512 | return (1);
|
---|
[1] | 1513 | }
|
---|
[58] | 1514 | for (noof_blocks = 0; filesize > 0;
|
---|
| 1515 | noof_blocks++, filesize -= bytes_to_read) {
|
---|
| 1516 | if (filesize < TAPE_BLOCK_SIZE) {
|
---|
| 1517 | bytes_to_read = (long) filesize;
|
---|
| 1518 | for (i = 0; i < TAPE_BLOCK_SIZE; i++) {
|
---|
| 1519 | datablock[i] = '\0';
|
---|
| 1520 | }
|
---|
| 1521 | } else {
|
---|
| 1522 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
| 1523 | }
|
---|
| 1524 | (void) fread(datablock, 1, (size_t) bytes_to_read, fin);
|
---|
[59] | 1525 | g_tape_posK += fwrite(datablock, 1, /*bytes_to_read */
|
---|
| 1526 | (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1527 | g_tape_stream) / 1024;
|
---|
[58] | 1528 | if (g_sigpipe) {
|
---|
| 1529 | iamhere("Sigpipe occurred recently. I'll start a new tape.");
|
---|
| 1530 | fclose(fin);
|
---|
| 1531 | g_sigpipe = FALSE;
|
---|
| 1532 | start_to_write_to_next_tape(bkpinfo);
|
---|
| 1533 | write_backcatalog_to_tape(bkpinfo); // kinda-sorta recursive :)
|
---|
| 1534 | return (0);
|
---|
| 1535 | }
|
---|
[1] | 1536 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[58] | 1537 | for (i = 0; i < bytes_to_read; i++) {
|
---|
| 1538 | ch = datablock[i];
|
---|
| 1539 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 1540 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 1541 | }
|
---|
[1] | 1542 | #endif
|
---|
[58] | 1543 | }
|
---|
| 1544 | paranoid_fclose(fin);
|
---|
[900] | 1545 | mr_asprintf(&checksum, "%04x%04x", crc16, crctt);
|
---|
[687] | 1546 | /* BERLIOS: what does it do ??? */
|
---|
| 1547 | write_header_block_to_stream((off_t)g_current_media_number, checksum,
|
---|
[58] | 1548 | BLK_STOP_FILE);
|
---|
[900] | 1549 | mr_free(checksum);
|
---|
[1] | 1550 | // log_it("File '%s' written to tape.", infile);
|
---|
[58] | 1551 | return (retval);
|
---|
[1] | 1552 | }
|
---|
| 1553 |
|
---|
| 1554 |
|
---|
| 1555 | /**
|
---|
| 1556 | * Write a header block to the opened stream (CD or tape).
|
---|
| 1557 | * @param length_of_incoming_file The length to store in the header block.
|
---|
| 1558 | * Usually matters only if this is a file-related header, in which case it should
|
---|
| 1559 | * be the length of the file that will follow.
|
---|
| 1560 | * @param filename The filename to store in the header block. Usually matters
|
---|
| 1561 | * only if this is a file-related header, in which case this should be the name
|
---|
| 1562 | * if the file that will follow.
|
---|
| 1563 | * @param control_char The type of header block this is (start-file, end-file, start-tape, ...)
|
---|
| 1564 | * @return 0 for success, nonzero for failure.
|
---|
| 1565 | */
|
---|
| 1566 | int
|
---|
[687] | 1567 | write_header_block_to_stream(off_t length_of_incoming_file,
|
---|
[58] | 1568 | char *filename, int control_char)
|
---|
[1] | 1569 | {
|
---|
[58] | 1570 | /*@ buffers **************************************************** */
|
---|
| 1571 | char tempblock[TAPE_BLOCK_SIZE];
|
---|
[122] | 1572 | char *tmp;
|
---|
[58] | 1573 | char *p;
|
---|
[1] | 1574 |
|
---|
[58] | 1575 | /*@ int ******************************************************** */
|
---|
| 1576 | int i;
|
---|
[1] | 1577 |
|
---|
[687] | 1578 | off_t olen;
|
---|
[1] | 1579 |
|
---|
[58] | 1580 | /*@ end vars *************************************************** */
|
---|
[1] | 1581 |
|
---|
| 1582 |
|
---|
[58] | 1583 | olen = length_of_incoming_file;
|
---|
| 1584 | p = strrchr(filename, '/'); /* Make 'em go, "Unnnh!" Oh wait, that was _Master_ P... */
|
---|
| 1585 | if (!p) {
|
---|
| 1586 | p = filename;
|
---|
| 1587 | } else {
|
---|
| 1588 | p++;
|
---|
| 1589 | }
|
---|
| 1590 | if (!g_tape_stream) {
|
---|
| 1591 | log_to_screen
|
---|
[507] | 1592 | (_("You're not backing up to tape. Why write a tape header?"));
|
---|
[58] | 1593 | return (1);
|
---|
| 1594 | }
|
---|
| 1595 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
| 1596 | tempblock[i] = 0;
|
---|
| 1597 | }
|
---|
| 1598 | sprintf(tempblock + 6000 + control_char, "Mondolicious, baby");
|
---|
| 1599 | tempblock[7000] = control_char;
|
---|
[687] | 1600 | memcpy(tempblock + 7001, (char *) &olen, sizeof(off_t));
|
---|
[58] | 1601 | strcpy(tempblock + 1000, filename);
|
---|
| 1602 | g_tape_posK +=
|
---|
| 1603 | fwrite(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1604 | g_tape_stream) / 1024;
|
---|
[900] | 1605 | mr_asprintf(&tmp, "%s (fname=%s, size=%ld K)",
|
---|
[127] | 1606 | marker_to_string(control_char), p,
|
---|
| 1607 | (long) length_of_incoming_file >> 10);
|
---|
[1086] | 1608 | mr_msg(6, tmp);
|
---|
[900] | 1609 | mr_free(tmp);
|
---|
[58] | 1610 | return (0);
|
---|
[1] | 1611 | }
|
---|
| 1612 |
|
---|
| 1613 |
|
---|
| 1614 | /**
|
---|
| 1615 | * Log (to screen) an erroneous marker, along with what it should have been.
|
---|
| 1616 | * @param should_be What we were expecting.
|
---|
| 1617 | * @param it_is What we got.
|
---|
| 1618 | */
|
---|
[58] | 1619 | void wrong_marker(int should_be, int it_is)
|
---|
[1] | 1620 | {
|
---|
[58] | 1621 | /*@ buffer ***************************************************** */
|
---|
[122] | 1622 | char *tmp;
|
---|
[1] | 1623 |
|
---|
| 1624 |
|
---|
[58] | 1625 | /*@ end vars *************************************************** */
|
---|
[900] | 1626 | mr_asprintf(&tmp, _("Wrong marker! (Should be %s, is actually %s)"),
|
---|
[127] | 1627 | marker_to_string(should_be), marker_to_string(it_is));
|
---|
[58] | 1628 | log_to_screen(tmp);
|
---|
[900] | 1629 | mr_free(tmp);
|
---|
[1] | 1630 | }
|
---|
| 1631 |
|
---|
| 1632 | /* @} - end of streamGroup */
|
---|