[122] | 1 | /* $Id: libmondo-stream.c 979 2006-11-26 11:35:32Z 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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| 15 | #include "mondostructures.h"
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| 16 | #include "libmondo-devices.h"
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| 17 | #include "libmondo-stream.h"
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| 18 | #include "libmondo-string-EXT.h"
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| 19 | #include "libmondo-files-EXT.h"
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[507] | 20 | #include "newt-specific-EXT.h"
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[1] | 21 | #include "libmondo-fork-EXT.h"
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| 22 | #include "libmondo-tools-EXT.h"
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| 23 | #include "libmondo-fifo-EXT.h"
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[900] | 24 | #include "mr_mem.h"
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[1] | 25 |
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| 26 | #define EXTRA_TAPE_CHECKSUMS
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| 27 |
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| 28 | extern bool g_sigpipe;
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| 29 | extern int g_tape_buffer_size_MB;
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| 30 |
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[956] | 31 | extern char *g_getfacl;
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| 32 | extern char *g_getfattr;
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| 33 |
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[1] | 34 | /**
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| 35 | * @addtogroup globalGroup
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| 36 | * @{
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| 37 | */
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| 38 | /**
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| 39 | * The file pointer for the opened tape/CD stream.
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| 40 | * Opened and closed by openin_tape(), openin_cdstream(),
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| 41 | * openout_tape(), openout_cdstream(), closein_tape(), closein_cdstream(),
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| 42 | * closeout_tape(), and closeout_cdstream().
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| 43 | */
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| 44 | FILE *g_tape_stream = NULL;
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| 45 |
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| 46 |
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| 47 | /**
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| 48 | * The position (in kilobytes) where we are on the tape.
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| 49 | */
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| 50 | long long g_tape_posK = 0;
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| 51 |
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| 52 | /**
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| 53 | * The current media number we're using. This value is 1-based.
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| 54 | */
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[58] | 55 | int g_current_media_number = -1;
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[1] | 56 |
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| 57 | /**
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| 58 | * The tape catalog that keeps track of files written to tape.
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| 59 | */
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| 60 | struct s_tapecatalog *g_tapecatalog;
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| 61 |
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| 62 | /* @} - end of globalGroup */
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| 63 |
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[58] | 64 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo);
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[1] | 65 |
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| 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 | * @addtogroup streamGroup
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| 72 | * @{
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| 73 | */
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| 74 | /**
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| 75 | * Close the global output file descriptor which Mondo has used to read
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| 76 | * from the CD stream.
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| 77 | * @param bkpinfo The backup information structure. Passed directly to closein_tape().
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| 78 | * @return 0 for success, nonzero for failure.
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| 79 | * @note This should be called by restore processes only.
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| 80 | */
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[58] | 81 | int closein_cdstream(struct s_bkpinfo *bkpinfo)
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[1] | 82 | {
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[58] | 83 | return (closein_tape(bkpinfo));
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[1] | 84 | }
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| 85 |
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| 86 |
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| 87 | /**
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| 88 | * Close the global output file descriptor which Mondo has used to read
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| 89 | * from buffer or dd, which read from the tape.
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| 90 | * @param bkpinfo The backup information structure. Unused.
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| 91 | * @return 0 for success, nonzero for failure.
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| 92 | * @note This should be called by restore processes only.
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| 93 | * @note This function also works for cdstreams for now, but don't count on this behavior.
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| 94 | * @bug @p bkpinfo parameter is unused.
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| 95 | */
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[58] | 96 | int closein_tape(struct s_bkpinfo *bkpinfo)
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[1] | 97 | {
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[58] | 98 | /*@ int's ******************************************************* */
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| 99 | int retval = 0;
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| 100 | int res = 0;
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| 101 | int ctrl_chr = '\0';
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[1] | 102 |
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[58] | 103 | /*@ long long's ************************************************* */
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| 104 | long long size;
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| 105 | char *blk;
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| 106 | int i;
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[1] | 107 |
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[58] | 108 | blk = (char *) malloc(256 * 1024);
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[1] | 109 |
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[58] | 110 | log_it("closein_tape() -- entering");
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[122] | 111 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
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[58] | 112 | retval += res;
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| 113 | if (ctrl_chr != BLK_END_OF_BACKUP) {
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| 114 | wrong_marker(BLK_END_OF_BACKUP, ctrl_chr);
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| 115 | }
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[122] | 116 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
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[58] | 117 | retval += res;
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| 118 | if (ctrl_chr != BLK_END_OF_TAPE) {
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| 119 | wrong_marker(BLK_END_OF_TAPE, ctrl_chr);
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| 120 | }
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| 121 | for (i = 0; i < 8 && !feof(g_tape_stream); i++) {
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| 122 | (void) fread(blk, 1, 256 * 1024, g_tape_stream);
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| 123 | }
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| 124 | sleep(1);
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[688] | 125 | sync();
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[58] | 126 | sleep(1);
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| 127 | paranoid_pclose(g_tape_stream);
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| 128 | log_it("closein_tape() -- leaving");
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| 129 | if (!bkpinfo->please_dont_eject) {
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| 130 | eject_device(bkpinfo->media_device);
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| 131 | }
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[900] | 132 | mr_free(blk);
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| 133 | mr_free((void *)g_tapecatalog);
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[58] | 134 | return (retval);
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[1] | 135 | }
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| 136 |
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| 137 |
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| 138 |
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| 139 | /**
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| 140 | * Close the global output file descriptor which Mondo has been using to write
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| 141 | * to the tape device (via buffer or dd).
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| 142 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
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| 143 | * @return 0 for success, nonzero for failure.
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| 144 | * @note This should be called by backup processes only.
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| 145 | */
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[58] | 146 | int closeout_tape(struct s_bkpinfo *bkpinfo)
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[1] | 147 | {
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[58] | 148 | /*@ int's ******************************************************* */
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| 149 | int retval = 0;
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[1] | 150 |
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[58] | 151 | /*@ long long's ************************************************* */
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| 152 | int i;
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| 153 | char *blk;
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[1] | 154 |
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[58] | 155 | blk = (char *) malloc(256 * 1024);
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[1] | 156 |
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[58] | 157 | sleep(1);
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[688] | 158 | sync();
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[58] | 159 | sleep(1);
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| 160 | log_it("closeout_tape() -- entering");
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| 161 | retval +=
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[687] | 162 | write_header_block_to_stream((off_t)0, "end-of-backup",
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[58] | 163 | BLK_END_OF_BACKUP);
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[687] | 164 | retval += write_header_block_to_stream((off_t)0, "end-of-tape", BLK_END_OF_TAPE); /* just in case */
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[122] | 165 | /* write 1MB of crap */
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[58] | 166 | for (i = 0; i < 256 * 1024; i++) {
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| 167 | blk[i] = (int) (random() & 0xFF);
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| 168 | }
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| 169 | for (i = 0; i < 4 * 8; i++) {
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| 170 | (void) fwrite(blk, 1, 256 * 1024, g_tape_stream);
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| 171 | if (should_we_write_to_next_tape
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[687] | 172 | (bkpinfo->media_size[g_current_media_number], (off_t)256 * 1024)) {
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[58] | 173 | start_to_write_to_next_tape(bkpinfo);
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| 174 | }
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| 175 | }
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| 176 | sleep(2);
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| 177 | paranoid_pclose(g_tape_stream);
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| 178 | log_it("closeout_tape() -- leaving");
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| 179 | for (i = 0; i < g_tapecatalog->entries; i++) {
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| 180 | log_it("i=%d type=%s num=%d aux=%ld posK=%lld", i,
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| 181 | (g_tapecatalog->el[i].type ==
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| 182 | fileset) ? "fileset" : "bigslice",
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| 183 | g_tapecatalog->el[i].number, g_tapecatalog->el[i].aux,
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| 184 | g_tapecatalog->el[i].tape_posK);
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| 185 | }
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[900] | 186 | mr_free(blk);
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| 187 | mr_free((void *)g_tapecatalog);
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[58] | 188 | return (retval);
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[1] | 189 | }
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| 190 |
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| 191 |
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| 192 |
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[58] | 193 | bool mt_says_tape_exists(char *dev)
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[1] | 194 | {
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[58] | 195 | char *command;
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| 196 | int res;
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[1] | 197 |
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[900] | 198 | mr_asprintf(&command, "mt -f %s status", dev);
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[58] | 199 | res = run_program_and_log_output(command, 1);
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[900] | 200 | mr_free(command);
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[58] | 201 | if (res) {
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| 202 | return (FALSE);
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| 203 | } else {
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| 204 | return (TRUE);
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| 205 | }
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[1] | 206 | }
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| 207 |
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| 208 |
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| 209 |
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| 210 | /**
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| 211 | * Determine the name and size of the tape device. Tries the SCSI tape for
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| 212 | * this platform, then the IDE tape, then "/dev/st0", then "/dev/osst0".
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| 213 | * @param dev Where to put the found tape device.
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[146] | 214 | * @param siz Where to put the tape size (a string like "4GB"). Should be freed by caller
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[1] | 215 | * @return 0 if success, nonzero if failure (in which @p dev and @p siz are undefined).
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| 216 | */
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[58] | 217 | int find_tape_device_and_size(char *dev, char *siz)
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[1] | 218 | {
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[688] | 219 | char *tmp = NULL;
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| 220 | char *tmp1 = NULL;
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| 221 | char *command = NULL;
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| 222 | char *cdr_exe = NULL;
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| 223 | int res = 0;
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[1] | 224 |
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[58] | 225 | log_to_screen("I am looking for your tape streamer. Please wait.");
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[688] | 226 | dev = NULL;
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[146] | 227 | siz = NULL;
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[689] | 228 | tmp = find_home_of_exe("cdrecord");
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| 229 | if (tmp) {
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[900] | 230 | mr_asprintf(&cdr_exe, "cdrecord");
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[58] | 231 | } else {
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[900] | 232 | mr_asprintf(&cdr_exe, "dvdrecord");
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[1] | 233 | }
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[900] | 234 | mr_free(tmp);
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[689] | 235 |
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[900] | 236 | mr_asprintf(&command, "%s -scanbus 2> /dev/null | grep -i tape | wc -l",
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[127] | 237 | cdr_exe);
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[688] | 238 | tmp = call_program_and_get_last_line_of_output(command);
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[900] | 239 | mr_free(command);
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[122] | 240 |
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[58] | 241 | if (atoi(tmp) != 1) {
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| 242 | log_it
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| 243 | ("Either too few or too many tape streamers for me to detect...");
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[900] | 244 | mr_asprintf(&dev, VANILLA_SCSI_TAPE"0");
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| 245 | mr_free(tmp);
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| 246 | mr_free(cdr_exe);
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[58] | 247 | return 1;
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| 248 | }
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[900] | 249 | mr_free(tmp);
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[122] | 250 |
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[900] | 251 | mr_asprintf(&command,
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[127] | 252 | "%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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| 253 | cdr_exe);
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[688] | 254 | tmp = call_program_and_get_last_line_of_output(command);
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[900] | 255 | mr_free(command);
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[58] | 256 | if (strlen(tmp) < 2) {
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| 257 | log_it("Could not find tape device");
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[900] | 258 | mr_free(tmp);
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| 259 | mr_free(cdr_exe);
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[58] | 260 | return 1;
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| 261 | }
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[900] | 262 | mr_free(tmp);
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[122] | 263 |
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[900] | 264 | mr_asprintf(&command,
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[127] | 265 | "%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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| 266 | cdr_exe);
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[900] | 267 | mr_free(cdr_exe);
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[122] | 268 |
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[688] | 269 | tmp = call_program_and_get_last_line_of_output(command);
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[900] | 270 | mr_free(command);
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[688] | 271 |
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[900] | 272 | mr_asprintf(&dev, VANILLA_SCSI_TAPE"%s", tmp);
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| 273 | mr_free(tmp);
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[122] | 274 |
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[58] | 275 | if (!mt_says_tape_exists(dev)) {
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[900] | 276 | mr_free(dev);
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[688] | 277 |
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[900] | 278 | mr_asprintf(&dev, ALT_TAPE"%s", tmp);
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[58] | 279 | if (!mt_says_tape_exists(dev)) {
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| 280 | log_it("Cannot openin %s", dev);
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[900] | 281 | mr_free(dev);
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[688] | 282 |
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[900] | 283 | mr_asprintf(&dev, VANILLA_SCSI_TAPE"0");
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[58] | 284 | if (!mt_says_tape_exists(dev)) {
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| 285 | log_it("Cannot openin %s", dev);
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[900] | 286 | mr_free(dev);
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[688] | 287 |
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[900] | 288 | mr_asprintf(&dev, "/dev/osst0");
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[58] | 289 | if (!mt_says_tape_exists(dev)) {
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| 290 | res++;
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| 291 | } else {
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| 292 | res = 0;
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| 293 | }
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| 294 | }
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| 295 | }
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| 296 | }
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[1] | 297 |
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[58] | 298 | log_it("At this point, dev = %s and res = %d", dev, res);
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| 299 |
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[688] | 300 | tmp = call_program_and_get_last_line_of_output("\
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[1] | 301 | cdrecord -scanbus 2> /dev/null | tr -s '\t' ' ' | \
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| 302 | grep \"[0-9]*,[0-9]*,[0-9]*\" | grep -v \"[0-9]*) \\*\" | grep -i TAPE | \
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[688] | 303 | awk '{for(i=1; i<NF; i++) { if (index($i, \"GB\")>0) { print $i;};};};'");
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[1] | 304 |
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[58] | 305 | if (mt_says_tape_exists(dev)) {
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| 306 | res = 0;
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| 307 | } else {
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| 308 | log_it("Turning %s", dev);
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[900] | 309 | mr_free(tmp);
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| 310 | mr_asprintf(&tmp1,
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[127] | 311 | (strrchr(dev, '/') != NULL) ? strrchr(dev, '/') : dev);
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[900] | 312 | mr_free(dev);
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| 313 | mr_asprintf(&dev, "/dev/os%s", tmp1);
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| 314 | mr_free(tmp1);
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[688] | 315 |
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[58] | 316 | log_it("...into %s", dev);
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| 317 | if (mt_says_tape_exists(dev)) {
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| 318 | res = 0;
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| 319 | } else {
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| 320 | res++;
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| 321 | }
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| 322 | }
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[1] | 323 |
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[58] | 324 | log_it("res=%d; dev=%s", res, dev);
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[1] | 325 |
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[58] | 326 | if (res) {
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[900] | 327 | mr_free(tmp);
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[58] | 328 | return (res);
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| 329 | }
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[1] | 330 |
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[58] | 331 | if (strlen(tmp) < 2) {
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| 332 | log_it("Warning - size of tape unknown");
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[900] | 333 | mr_free(tmp);
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[58] | 334 | return (0);
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| 335 | } else {
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[146] | 336 | siz = tmp;
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[58] | 337 | return (0);
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| 338 | }
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[1] | 339 | }
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| 340 |
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[58] | 341 | int read_EXAT_files_from_tape(struct s_bkpinfo *bkpinfo,
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| 342 | long long *ptmp_size, char *tmp_fname,
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| 343 | int *pctrl_chr, char *xattr_fname,
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| 344 | char *acl_fname)
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[1] | 345 | {
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[58] | 346 | int res = 0;
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| 347 | int retval = 0;
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[979] | 348 | char *fname = (char *)&res; /* Should NOT be NULL */
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[58] | 349 |
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[1] | 350 | // xattr
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[956] | 351 | if (g_getfattr) {
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| 352 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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| 353 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
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| 354 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
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| 355 | }
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| 356 | if (!strstr(fname, "xattr")) {
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| 357 | fatal_error("Wrong order, sunshine.");
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| 358 | }
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| 359 | read_file_from_stream_to_file(bkpinfo, xattr_fname, *ptmp_size);
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| 360 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
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| 361 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
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| 362 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
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| 363 | }
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| 364 | log_msg(1, "Got xattr");
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[58] | 365 | }
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[900] | 366 | mr_free(fname);
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[147] | 367 | fname = (char *)&res;
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[58] | 368 | read_file_from_stream_to_file(bkpinfo, xattr_fname, *ptmp_size);
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[122] | 369 | res = read_header_block_from_stream(ptmp_size, NULL, pctrl_chr);
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[58] | 370 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
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| 371 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
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| 372 | }
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[122] | 373 | // acl
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[956] | 374 | if (g_getfacl) {
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| 375 | res = read_header_block_from_stream(ptmp_size, fname, pctrl_chr);
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| 376 | if (!strstr(fname, "acl")) {
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| 377 | fatal_error("Wrong order, sunshine.");
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| 378 | }
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| 379 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
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| 380 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
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| 381 | }
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| 382 | read_file_from_stream_to_file(bkpinfo, acl_fname, *ptmp_size);
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| 383 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
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| 384 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
| 385 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
| 386 | }
|
---|
| 387 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 388 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
| 389 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 390 | }
|
---|
| 391 | log_msg(1, "Got acl");
|
---|
[58] | 392 | }
|
---|
[900] | 393 | mr_free(fname);
|
---|
[147] | 394 | fname = (char *)&res;
|
---|
[58] | 395 | if (*pctrl_chr != BLK_START_EXAT_FILE) {
|
---|
| 396 | wrong_marker(BLK_START_EXAT_FILE, *pctrl_chr);
|
---|
| 397 | }
|
---|
| 398 | read_file_from_stream_to_file(bkpinfo, acl_fname, *ptmp_size);
|
---|
[122] | 399 | res = read_header_block_from_stream(ptmp_size, NULL, pctrl_chr);
|
---|
[58] | 400 | if (*pctrl_chr != BLK_STOP_EXAT_FILE) {
|
---|
| 401 | wrong_marker(BLK_STOP_EXAT_FILE, *pctrl_chr);
|
---|
| 402 | }
|
---|
[122] | 403 | res = read_header_block_from_stream(ptmp_size, NULL, pctrl_chr);
|
---|
[58] | 404 | if (*pctrl_chr != BLK_STOP_EXTENDED_ATTRIBUTES) {
|
---|
| 405 | wrong_marker(BLK_STOP_EXTENDED_ATTRIBUTES, *pctrl_chr);
|
---|
| 406 | }
|
---|
[122] | 407 | // tarball itself
|
---|
[956] | 408 | res = read_header_block_from_stream(ptmp_size, tmp_fname, pctrl_chr);
|
---|
| 409 | log_msg(1, "now looking for afioball");
|
---|
[58] | 410 | return (retval);
|
---|
[1] | 411 | }
|
---|
| 412 |
|
---|
| 413 |
|
---|
[58] | 414 | int write_EXAT_files_to_tape(struct s_bkpinfo *bkpinfo, char *xattr_fname,
|
---|
| 415 | char *acl_fname)
|
---|
[1] | 416 | {
|
---|
[58] | 417 | int res = 0;
|
---|
[956] | 418 | if (g_getfattr) {
|
---|
[122] | 419 | // xattr
|
---|
[956] | 420 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 421 | BLK_START_EXTENDED_ATTRIBUTES);
|
---|
| 422 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 423 | BLK_START_EXAT_FILE);
|
---|
| 424 | write_file_to_stream_from_file(bkpinfo, xattr_fname);
|
---|
| 425 | write_header_block_to_stream((off_t)-1, xattr_fname, BLK_STOP_EXAT_FILE);
|
---|
| 426 | }
|
---|
| 427 | if (g_getfacl) {
|
---|
| 428 | // acl
|
---|
| 429 | write_header_block_to_stream(length_of_file(acl_fname), acl_fname,
|
---|
| 430 | BLK_START_EXAT_FILE);
|
---|
| 431 | write_file_to_stream_from_file(bkpinfo, acl_fname);
|
---|
| 432 | write_header_block_to_stream((off_t)-1, acl_fname, BLK_STOP_EXAT_FILE);
|
---|
| 433 | write_header_block_to_stream(length_of_file(xattr_fname), xattr_fname,
|
---|
| 434 | BLK_STOP_EXTENDED_ATTRIBUTES);
|
---|
| 435 | }
|
---|
[58] | 436 | return (res);
|
---|
[1] | 437 | }
|
---|
| 438 |
|
---|
| 439 |
|
---|
| 440 |
|
---|
| 441 |
|
---|
| 442 | /**
|
---|
| 443 | * Tell the user to insert tape @p tapeno and wait for it to settle (5 seconds).
|
---|
| 444 | * @param tapeno The tape number to insist on.
|
---|
| 445 | * @bug There is currently no way to actually verify that the user has actually
|
---|
| 446 | * inserted the right tape.
|
---|
| 447 | */
|
---|
| 448 | void insist_on_this_tape_number(int tapeno)
|
---|
| 449 | {
|
---|
[58] | 450 | int i;
|
---|
[122] | 451 | char *tmp;
|
---|
[1] | 452 |
|
---|
[58] | 453 | log_it("Insisting on tape #%d", tapeno);
|
---|
| 454 | if (g_current_media_number != tapeno) {
|
---|
| 455 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
[900] | 456 | mr_asprintf(&tmp,
|
---|
[507] | 457 | _("When the tape drive goes quiet, please insert volume %d in this series."),
|
---|
[127] | 458 | tapeno);
|
---|
[58] | 459 | popup_and_OK(tmp);
|
---|
[900] | 460 | mr_free(tmp);
|
---|
[507] | 461 | open_evalcall_form(_("Waiting while the tape drive settles"));
|
---|
[58] | 462 | } else {
|
---|
[507] | 463 | open_evalcall_form(_("Waiting while the tape drive rewinds"));
|
---|
[58] | 464 | }
|
---|
[1] | 465 |
|
---|
[58] | 466 | for (i = 0; i <= 100; i += 2) {
|
---|
| 467 | usleep(100000);
|
---|
| 468 | update_evalcall_form(i);
|
---|
| 469 | }
|
---|
| 470 | close_evalcall_form();
|
---|
| 471 | log_it("I assume user has inserted it. They _say_ they have...");
|
---|
| 472 | g_current_media_number = tapeno;
|
---|
[1] | 473 |
|
---|
[58] | 474 | // log_it("g_current_media_number = %d", g_current_media_number);
|
---|
| 475 | log_it("OK, I've finished insisting. On with the revelry.");
|
---|
[1] | 476 | }
|
---|
| 477 |
|
---|
| 478 |
|
---|
| 479 | /**
|
---|
| 480 | * Debugging aid - log the offset we're at on the tape (reading or writing).
|
---|
| 481 | */
|
---|
[58] | 482 | void log_tape_pos(void)
|
---|
[1] | 483 | {
|
---|
[58] | 484 | log_it("Tape position -- %ld KB (%ld MB)", (long) g_tape_posK,
|
---|
| 485 | (long) g_tape_posK >> 10);
|
---|
[1] | 486 | }
|
---|
| 487 |
|
---|
| 488 |
|
---|
| 489 |
|
---|
| 490 |
|
---|
| 491 | /**
|
---|
| 492 | * Add a file to a collection of recently archived filesets/slices.
|
---|
| 493 | * The type is determined by the filename: if it contains ".afio." it is
|
---|
| 494 | * assumed to be a fileset, otherwise if it contains "slice" it's a slice,
|
---|
| 495 | * otherwise we generate a fatal_error().
|
---|
| 496 | * @param td The current @c bkpinfo->tempdir (file will be placed in <tt>td</tt>/tmpfs/backcatalog/).
|
---|
| 497 | * @param latest_fname The file to place in the collection.
|
---|
| 498 | * @return 0, always.
|
---|
| 499 | * @bug Return value is redundant.
|
---|
| 500 | * @bug The detection won't work for uncompressed afioballs (they end in ".afio", no dot afterwards). // Not true. They end in '.' -Hugo
|
---|
| 501 | */
|
---|
| 502 | int maintain_collection_of_recent_archives(char *td, char *latest_fname)
|
---|
| 503 | {
|
---|
[58] | 504 | long long final_alleged_writeK, final_projected_certain_writeK,
|
---|
| 505 | final_actually_certain_writeK = 0, cposK, bufsize_K;
|
---|
| 506 | int last, curr, i;
|
---|
| 507 | t_archtype type = other;
|
---|
[122] | 508 | char *command;
|
---|
| 509 | char *tmpdir;
|
---|
| 510 | char *old_fname;
|
---|
[1] | 511 |
|
---|
[58] | 512 | bufsize_K = (long long) (1024LL * (1 + g_tape_buffer_size_MB));
|
---|
[900] | 513 | mr_asprintf(&tmpdir, "%s/tmpfs/backcatalog", td);
|
---|
[58] | 514 | if (strstr(latest_fname, ".afio.") || strstr(latest_fname, ".star.")) {
|
---|
| 515 | type = fileset;
|
---|
| 516 | } else if (strstr(latest_fname, "slice")) {
|
---|
| 517 | type = biggieslice;
|
---|
| 518 | } else {
|
---|
| 519 | log_it("fname = %s", latest_fname);
|
---|
| 520 | fatal_error
|
---|
| 521 | ("Unknown type. Internal error in maintain_collection_of_recent_archives()");
|
---|
| 522 | }
|
---|
| 523 | mkdir(tmpdir, 0x700);
|
---|
[900] | 524 | mr_asprintf(&command, "cp -f %s %s", latest_fname, tmpdir);
|
---|
[58] | 525 | if (run_program_and_log_output(command, 6)) {
|
---|
| 526 | log_it("Warning - failed to copy %s to backcatalog at %s",
|
---|
| 527 | latest_fname, tmpdir);
|
---|
| 528 | }
|
---|
[900] | 529 | mr_free(command);
|
---|
[122] | 530 |
|
---|
[58] | 531 | last = g_tapecatalog->entries - 1;
|
---|
| 532 | if (last <= 0) {
|
---|
| 533 | iamhere("Too early to start deleting from collection.");
|
---|
| 534 | return (0);
|
---|
| 535 | }
|
---|
| 536 | final_alleged_writeK = g_tapecatalog->el[last].tape_posK;
|
---|
| 537 | final_projected_certain_writeK = final_alleged_writeK - bufsize_K;
|
---|
| 538 | for (curr = last; curr >= 0; curr--) {
|
---|
| 539 | cposK = g_tapecatalog->el[curr].tape_posK;
|
---|
| 540 | if (cposK < final_projected_certain_writeK) {
|
---|
| 541 | final_actually_certain_writeK = cposK;
|
---|
| 542 | break;
|
---|
| 543 | }
|
---|
| 544 | }
|
---|
| 545 | if (curr < 0) {
|
---|
| 546 | iamhere
|
---|
| 547 | ("Not far enough into tape to start deleting old archives from collection.");
|
---|
| 548 | return (0);
|
---|
| 549 | }
|
---|
[1] | 550 | // log_it( "There are %lld KB (more than %d KB) in my backcatalog", final_alleged_writeK - final_actually_certain_writeK, bufsize_K);
|
---|
| 551 |
|
---|
[58] | 552 | for (i = curr - 1; i >= 0 && curr - i < 10; i--) {
|
---|
[900] | 553 | mr_asprintf(&old_fname, "%s/%s", tmpdir, g_tapecatalog->el[i].fname);
|
---|
[58] | 554 | unlink(old_fname);
|
---|
[900] | 555 | mr_free(old_fname);
|
---|
[58] | 556 | }
|
---|
[900] | 557 | mr_free(tmpdir);
|
---|
[58] | 558 | return (0);
|
---|
[1] | 559 | }
|
---|
| 560 |
|
---|
| 561 |
|
---|
| 562 | /**
|
---|
| 563 | * Open the CD stream for input.
|
---|
| 564 | * @param bkpinfo The backup information structure. Passed to openin_tape().
|
---|
| 565 | * @return 0 for success, nonzero for failure.
|
---|
| 566 | * @note Equivalent to openin_tape() for now, but don't count on this behavior.
|
---|
| 567 | */
|
---|
[58] | 568 | int openin_cdstream(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 569 | {
|
---|
[58] | 570 | return (openin_tape(bkpinfo));
|
---|
[1] | 571 | }
|
---|
| 572 |
|
---|
[122] | 573 |
|
---|
[58] | 574 | int set_tape_block_size_with_mt(char *tapedev,
|
---|
| 575 | long internal_tape_block_size)
|
---|
[1] | 576 | {
|
---|
[58] | 577 | char *tmp;
|
---|
| 578 | int res;
|
---|
[1] | 579 |
|
---|
[58] | 580 | if (strncmp(tapedev, "/dev/", 5)) {
|
---|
| 581 | log_msg(1,
|
---|
| 582 | "Not using 'mt setblk'. This isn't an actual /dev entry.");
|
---|
| 583 | return (0);
|
---|
| 584 | }
|
---|
[900] | 585 | mr_asprintf(&tmp, "mt -f %s setblk %ld", tapedev,
|
---|
[127] | 586 | internal_tape_block_size);
|
---|
[58] | 587 | res = run_program_and_log_output(tmp, 3);
|
---|
[900] | 588 | mr_free(tmp);
|
---|
[58] | 589 | return (res);
|
---|
[1] | 590 | }
|
---|
| 591 |
|
---|
| 592 |
|
---|
| 593 | /**
|
---|
| 594 | * Open the tape device for input.
|
---|
| 595 | * @param bkpinfo The backup information structure. Fields used:
|
---|
| 596 | * - @c bkpinfo->media_device
|
---|
| 597 | * - @c bkpinfo->tmpdir
|
---|
| 598 | * @return 0 for success, nonzero for failure.
|
---|
| 599 | * @note This will also work with a cdstream for now, but don't count on this behavior.
|
---|
| 600 | */
|
---|
[58] | 601 | int openin_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 602 | {
|
---|
[58] | 603 | /*@ buffer ***************************************************** */
|
---|
| 604 | char *datablock;
|
---|
[122] | 605 | char *tmp;
|
---|
[58] | 606 | char old_cwd[MAX_STR_LEN];
|
---|
[122] | 607 | char *outfname;
|
---|
[58] | 608 | /*@ int ******************************************************* */
|
---|
| 609 | int i;
|
---|
| 610 | int j;
|
---|
| 611 | int res;
|
---|
| 612 | long length, templong;
|
---|
| 613 | size_t k;
|
---|
| 614 | int retval = 0;
|
---|
| 615 | int ctrl_chr;
|
---|
[1] | 616 |
|
---|
[58] | 617 | /*@ long long ************************************************* */
|
---|
| 618 | long long size;
|
---|
[1] | 619 |
|
---|
[58] | 620 | /*@ pointers ************************************************** */
|
---|
| 621 | FILE *fout;
|
---|
[1] | 622 |
|
---|
[58] | 623 | /*@ end vars *************************************************** */
|
---|
[1] | 624 |
|
---|
[58] | 625 | assert_string_is_neither_NULL_nor_zerolength(bkpinfo->media_device);
|
---|
| 626 | if (!(g_tapecatalog = malloc(sizeof(struct s_tapecatalog)))) {
|
---|
| 627 | fatal_error("Cannot alloc mem for tape catalog");
|
---|
| 628 | }
|
---|
| 629 | g_tapecatalog->entries = 0;
|
---|
| 630 | g_tape_posK = 0;
|
---|
| 631 | if (g_tape_stream) {
|
---|
| 632 | log_it("FYI - I won't 'openin' the tape. It's already open.");
|
---|
| 633 | return (0);
|
---|
| 634 | }
|
---|
| 635 | insist_on_this_tape_number(1);
|
---|
[900] | 636 | mr_asprintf(&outfname, "%s/tmp/all.tar.gz", bkpinfo->tmpdir);
|
---|
[58] | 637 | make_hole_for_file(outfname);
|
---|
[1] | 638 |
|
---|
[58] | 639 | set_tape_block_size_with_mt(bkpinfo->media_device,
|
---|
| 640 | bkpinfo->internal_tape_block_size);
|
---|
[1] | 641 |
|
---|
[58] | 642 | log_it("Opening IN tape");
|
---|
| 643 | if (!
|
---|
| 644 | (g_tape_stream =
|
---|
| 645 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 646 | bkpinfo->internal_tape_block_size))) {
|
---|
[507] | 647 | log_to_screen(_("Cannot openin stream device"));
|
---|
[58] | 648 | return (1);
|
---|
| 649 | }
|
---|
[507] | 650 | log_to_screen(_("Reading stream"));
|
---|
[58] | 651 | log_it("stream device = '%s'", bkpinfo->media_device);
|
---|
[1] | 652 | /* skip data disks */
|
---|
[58] | 653 | open_evalcall_form("Skipping data disks on stream");
|
---|
[507] | 654 | log_to_screen(_("Skipping data disks on stream"));
|
---|
[58] | 655 | if (!(fout = fopen(outfname, "w"))) {
|
---|
| 656 | log_OS_error(outfname);
|
---|
[507] | 657 | log_to_screen(_("Cannot openout datadisk all.tar.gz file"));
|
---|
[58] | 658 | return (-1);
|
---|
[1] | 659 | }
|
---|
[58] | 660 | if (!(datablock = (char *) malloc(256 * 1024))) {
|
---|
[507] | 661 | log_to_screen(_("Unable to malloc 256*1024"));
|
---|
[58] | 662 | exit(1);
|
---|
| 663 | }
|
---|
| 664 | for (i = 0; i < 32; i++) {
|
---|
| 665 | for (j = 0; j < 4; j++) {
|
---|
| 666 | for (length = 0, k = 0; length < 256 * 1024; length += k) {
|
---|
| 667 | k = fread(datablock + length, 1, 256 * 1024 - length,
|
---|
| 668 | g_tape_stream);
|
---|
| 669 | }
|
---|
| 670 | (void) fwrite(datablock, 1, (size_t) length, fout);
|
---|
| 671 | g_tape_posK += length / 1024;
|
---|
| 672 | }
|
---|
| 673 | if (i > 8) // otherwise, 'buffer' distorts calculations
|
---|
| 674 | {
|
---|
| 675 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 676 | update_evalcall_form((int) (templong));
|
---|
| 677 | }
|
---|
| 678 | }
|
---|
| 679 | paranoid_fclose(fout);
|
---|
[900] | 680 | mr_free(datablock);
|
---|
[122] | 681 | /* find initial blocks */
|
---|
| 682 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
|
---|
[58] | 683 | retval += res;
|
---|
| 684 | if (ctrl_chr != BLK_START_OF_TAPE) {
|
---|
| 685 | wrong_marker(BLK_START_OF_TAPE, ctrl_chr);
|
---|
| 686 | }
|
---|
[122] | 687 | res = read_header_block_from_stream(&size, NULL, &ctrl_chr);
|
---|
[58] | 688 | retval += res;
|
---|
| 689 | if (ctrl_chr != BLK_START_OF_BACKUP) {
|
---|
| 690 | wrong_marker(BLK_START_OF_BACKUP, ctrl_chr);
|
---|
| 691 | }
|
---|
| 692 | close_evalcall_form();
|
---|
| 693 | log_it("Saved all.tar.gz to '%s'", outfname);
|
---|
| 694 | (void) getcwd(old_cwd, MAX_STR_LEN);
|
---|
| 695 | chdir(bkpinfo->tmpdir);
|
---|
[900] | 696 | mr_asprintf(&tmp, "tar -zxf %s tmp/mondo-restore.cfg 2> /dev/null",
|
---|
[127] | 697 | outfname);
|
---|
[58] | 698 | paranoid_system(tmp);
|
---|
[900] | 699 | mr_free(tmp);
|
---|
[58] | 700 | paranoid_system("cp -f tmp/mondo-restore.cfg . 2> /dev/null");
|
---|
| 701 | chdir(old_cwd);
|
---|
| 702 | unlink(outfname);
|
---|
[900] | 703 | mr_free(outfname);
|
---|
[58] | 704 | return (retval);
|
---|
[1] | 705 | }
|
---|
| 706 |
|
---|
| 707 |
|
---|
| 708 | /**
|
---|
| 709 | * Start writing to a CD stream.
|
---|
| 710 | * @param cddev The CD device to openout via cdrecord.
|
---|
| 711 | * @param speed The speed to write at.
|
---|
| 712 | * @return 0 for success, nonzero for failure.
|
---|
| 713 | * @note This should be called only from backup processes.
|
---|
| 714 | */
|
---|
[58] | 715 | int openout_cdstream(char *cddev, int speed)
|
---|
[1] | 716 | {
|
---|
[58] | 717 | /*@ buffers ***************************************************** */
|
---|
[147] | 718 | char *command;
|
---|
[1] | 719 |
|
---|
[58] | 720 | /*@ end vars *************************************************** */
|
---|
[1] | 721 |
|
---|
[122] | 722 | /* add 'dummy' if testing */
|
---|
[900] | 723 | mr_asprintf(&command,
|
---|
[127] | 724 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 725 | cddev, speed, MONDO_LOGFILE, MONDO_LOGFILE);
|
---|
[122] | 726 | /* initialise the catalog */
|
---|
[58] | 727 | g_current_media_number = 1;
|
---|
| 728 | if (!(g_tapecatalog = malloc(sizeof(struct s_tapecatalog)))) {
|
---|
| 729 | fatal_error("Cannot alloc mem for tape catalog");
|
---|
| 730 | }
|
---|
| 731 | g_tapecatalog->entries = 0;
|
---|
[122] | 732 | /* log stuff */
|
---|
[58] | 733 | log_it("Opening OUT cdstream with the command");
|
---|
| 734 | log_it(command);
|
---|
[122] | 735 | /* log_it("Let's see what happens, shall we?"); */
|
---|
[58] | 736 | g_tape_stream = popen(command, "w");
|
---|
[900] | 737 | mr_free(command);
|
---|
[58] | 738 | if (g_tape_stream) {
|
---|
| 739 | return (0);
|
---|
| 740 | } else {
|
---|
[507] | 741 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[58] | 742 | return (1);
|
---|
| 743 | }
|
---|
[1] | 744 | }
|
---|
| 745 |
|
---|
[122] | 746 |
|
---|
[1] | 747 | /**
|
---|
| 748 | * Start writing to a tape device for the backup.
|
---|
| 749 | * @param tapedev The tape device to open for writing.
|
---|
| 750 | * @return 0 for success, nonzero for failure.
|
---|
| 751 | * @note This should be called ONLY from backup processes. It will OVERWRITE ANY
|
---|
| 752 | * EXISTING DATA on the tape!
|
---|
| 753 | */
|
---|
[58] | 754 | int openout_tape(char *tapedev, long internal_tape_block_size)
|
---|
[1] | 755 | {
|
---|
[58] | 756 | g_current_media_number = 1;
|
---|
| 757 | if (g_tape_stream) {
|
---|
| 758 | log_it("FYI - I won't 'openout' the tape. It's already open.");
|
---|
| 759 | return (0);
|
---|
| 760 | }
|
---|
| 761 | if (!(g_tapecatalog = malloc(sizeof(struct s_tapecatalog)))) {
|
---|
| 762 | fatal_error("Cannot alloc mem for tape catalog");
|
---|
| 763 | }
|
---|
| 764 | g_tapecatalog->entries = 0;
|
---|
| 765 | g_tape_posK = 0;
|
---|
| 766 |
|
---|
| 767 | set_tape_block_size_with_mt(tapedev, internal_tape_block_size);
|
---|
| 768 | log_it("Opening OUT tape");
|
---|
| 769 | if (!
|
---|
| 770 | (g_tape_stream =
|
---|
| 771 | open_device_via_buffer(tapedev, 'w', internal_tape_block_size))) {
|
---|
[507] | 772 | log_to_screen(_("Cannot openin stream device"));
|
---|
[58] | 773 | return (1);
|
---|
| 774 | }
|
---|
| 775 | return (0);
|
---|
[1] | 776 | }
|
---|
| 777 |
|
---|
| 778 |
|
---|
| 779 | /**
|
---|
| 780 | * Copy a file from the opened stream (CD or tape) to @p outfile.
|
---|
| 781 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 782 | * @param outfile The file to write to.
|
---|
| 783 | * @param size The size of the file in the input stream.
|
---|
| 784 | * @return 0 for success, nonzero for failure.
|
---|
| 785 | */
|
---|
| 786 | int
|
---|
[58] | 787 | read_file_from_stream_to_file(struct s_bkpinfo *bkpinfo, char *outfile,
|
---|
| 788 | long long size)
|
---|
[1] | 789 | {
|
---|
| 790 |
|
---|
[58] | 791 | /*@ int ******************************************************** */
|
---|
| 792 | int res;
|
---|
[1] | 793 |
|
---|
[58] | 794 | /*@ end vars *************************************************** */
|
---|
[1] | 795 |
|
---|
[58] | 796 | res = read_file_from_stream_FULL(bkpinfo, outfile, NULL, size);
|
---|
[1] | 797 |
|
---|
[58] | 798 | return (res);
|
---|
[1] | 799 | }
|
---|
| 800 |
|
---|
| 801 |
|
---|
| 802 | /**
|
---|
| 803 | * Copy a file from the currently opened stream (CD or tape) to the stream indicated
|
---|
| 804 | * by @p fout.
|
---|
| 805 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 806 | * @param fout The stream to write the file to.
|
---|
| 807 | * @param size The size of the file in bytes.
|
---|
| 808 | * @return 0 for success, nonzero for failure.
|
---|
| 809 | */
|
---|
| 810 | int
|
---|
[58] | 811 | read_file_from_stream_to_stream(struct s_bkpinfo *bkpinfo, FILE * fout,
|
---|
| 812 | long long size)
|
---|
[1] | 813 | {
|
---|
| 814 |
|
---|
[58] | 815 | /*@ int ******************************************************** */
|
---|
| 816 | int res;
|
---|
[1] | 817 |
|
---|
[58] | 818 | /*@ end vars *************************************************** */
|
---|
[1] | 819 |
|
---|
[58] | 820 | res = read_file_from_stream_FULL(bkpinfo, NULL, fout, size);
|
---|
| 821 | return (res);
|
---|
[1] | 822 | }
|
---|
| 823 |
|
---|
| 824 |
|
---|
| 825 | /**
|
---|
| 826 | * Copy a file from the currently opened stream (CD or tape) to either a
|
---|
| 827 | * @c FILE pointer indicating a currently-opened file, or a filename indicating
|
---|
| 828 | * a new file to create. This is the backbone function that read_file_from_stream_to_file()
|
---|
| 829 | * and read_file_from_stream_to_stream() are wrappers for.
|
---|
| 830 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 831 | * @param outfname If non-NULL, write to this file.
|
---|
| 832 | * @param foutstream If non-NULL, write to this stream.
|
---|
| 833 | * @param orig_size The original length of the file in bytes.
|
---|
| 834 | * @return 0 for success, nonzero for failure.
|
---|
| 835 | * @note Only @b one of @p outfname or @p foutstream may be non-NULL.
|
---|
| 836 | */
|
---|
| 837 | int
|
---|
[58] | 838 | read_file_from_stream_FULL(struct s_bkpinfo *bkpinfo, char *outfname,
|
---|
| 839 | FILE * foutstream, long long orig_size)
|
---|
[1] | 840 | {
|
---|
[58] | 841 | /*@ buffers ***************************************************** */
|
---|
| 842 | char *tmp;
|
---|
| 843 | char *datablock;
|
---|
[147] | 844 | char *temp_fname = (char *)bkpinfo; /* Should NOT be NULL */
|
---|
| 845 | char *temp_cksum = (char *)bkpinfo; /* Should NOT be NULL */
|
---|
[58] | 846 | char *actual_cksum;
|
---|
[1] | 847 |
|
---|
[58] | 848 | /*@ int ********************************************************* */
|
---|
| 849 | int retval = 0;
|
---|
[1] | 850 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[58] | 851 | int i, ch;
|
---|
[1] | 852 | #endif
|
---|
[58] | 853 | int noof_blocks;
|
---|
| 854 | int ctrl_chr;
|
---|
| 855 | int res;
|
---|
| 856 | /*@ pointers **************************************************** */
|
---|
| 857 | FILE *fout;
|
---|
[1] | 858 |
|
---|
[58] | 859 | /*@ long ***************************************************** */
|
---|
[122] | 860 | long bytes_to_write = 0;
|
---|
[1] | 861 |
|
---|
[58] | 862 | /*@ long long *************************************************** */
|
---|
| 863 | long long temp_size, size;
|
---|
| 864 | long bytes_read, bytes_to_read;
|
---|
| 865 | long long total_read_from_tape_for_this_file = 0;
|
---|
| 866 | long long where_I_was_before_tape_change = 0;
|
---|
| 867 | /*@ unsigned int ************************************************ */
|
---|
| 868 | unsigned int crc16;
|
---|
| 869 | unsigned int crctt;
|
---|
[1] | 870 |
|
---|
[58] | 871 | bool had_to_resync = FALSE;
|
---|
[1] | 872 |
|
---|
[58] | 873 | /*@ init ******************************************************* */
|
---|
| 874 | datablock = malloc(TAPE_BLOCK_SIZE);
|
---|
| 875 | crc16 = 0;
|
---|
| 876 | crctt = 0;
|
---|
| 877 | size = orig_size;
|
---|
[1] | 878 |
|
---|
[58] | 879 | /*@ end vars *************************************************** */
|
---|
[1] | 880 |
|
---|
[58] | 881 | res = read_header_block_from_stream(&temp_size, temp_fname, &ctrl_chr);
|
---|
| 882 | if (orig_size != temp_size && orig_size != -1) {
|
---|
[900] | 883 | mr_asprintf(&tmp,
|
---|
[127] | 884 | "output file's size should be %ld K but is apparently %ld K",
|
---|
| 885 | (long) size >> 10, (long) temp_size >> 10);
|
---|
[58] | 886 | log_to_screen(tmp);
|
---|
[900] | 887 | mr_free(tmp);
|
---|
[58] | 888 | }
|
---|
| 889 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 890 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 891 | return (1);
|
---|
| 892 | }
|
---|
[900] | 893 | mr_asprintf(&tmp, "Reading file from tape; writing to '%s'; %ld KB",
|
---|
[127] | 894 | outfname, (long) size >> 10);
|
---|
[122] | 895 | log_to_screen(tmp);
|
---|
[900] | 896 | mr_free(tmp);
|
---|
[1] | 897 |
|
---|
[58] | 898 | if (foutstream) {
|
---|
| 899 | fout = foutstream;
|
---|
| 900 | } else {
|
---|
| 901 | fout = fopen(outfname, "w");
|
---|
[1] | 902 | }
|
---|
[58] | 903 | if (!fout) {
|
---|
| 904 | log_OS_error(outfname);
|
---|
[507] | 905 | log_to_screen(_("Cannot openout file"));
|
---|
[58] | 906 | return (1);
|
---|
| 907 | }
|
---|
| 908 | total_read_from_tape_for_this_file = 0;
|
---|
| 909 | for (noof_blocks = 0; size > 0;
|
---|
| 910 | noof_blocks++, size -=
|
---|
| 911 | bytes_to_write, total_read_from_tape_for_this_file +=
|
---|
| 912 | bytes_read) {
|
---|
| 913 | bytes_to_write =
|
---|
| 914 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
| 915 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
| 916 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 917 | while (bytes_read < bytes_to_read) { // next tape!
|
---|
| 918 | // crctt=crc16=0;
|
---|
| 919 | where_I_was_before_tape_change = size;
|
---|
| 920 | log_msg(4, "where_I_was_... = %lld",
|
---|
| 921 | where_I_was_before_tape_change);
|
---|
| 922 | start_to_read_from_next_tape(bkpinfo);
|
---|
| 923 | log_msg(4, "Started reading from next tape.");
|
---|
| 924 | skip_incoming_files_until_we_find_this_one(temp_fname);
|
---|
| 925 | log_msg(4, "Skipped irrelevant files OK.");
|
---|
| 926 | for (size = orig_size; size > where_I_was_before_tape_change;
|
---|
| 927 | size -= bytes_to_write) {
|
---|
| 928 | bytes_read =
|
---|
| 929 | fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 930 | }
|
---|
| 931 | log_msg(4, "'size' is now %lld (should be %lld)", size,
|
---|
| 932 | where_I_was_before_tape_change);
|
---|
| 933 | log_to_screen("Successfully re-sync'd tape");
|
---|
| 934 | had_to_resync = TRUE;
|
---|
| 935 | bytes_read = fread(datablock, 1, bytes_to_read, g_tape_stream);
|
---|
| 936 | }
|
---|
[1] | 937 |
|
---|
[58] | 938 | (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] | 939 |
|
---|
| 940 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[58] | 941 | for (i = 0; i < (int) bytes_to_write; i++) {
|
---|
| 942 | ch = datablock[i];
|
---|
| 943 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 944 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 945 | }
|
---|
[1] | 946 | #endif
|
---|
[58] | 947 | }
|
---|
| 948 | log_msg(6, "Total read from tape for this file = %lld",
|
---|
| 949 | total_read_from_tape_for_this_file);
|
---|
| 950 | log_msg(6, ".......................... Should be %lld", orig_size);
|
---|
| 951 | g_tape_posK += total_read_from_tape_for_this_file / 1024;
|
---|
[900] | 952 | mr_asprintf(&actual_cksum, "%04x%04x", crc16, crctt);
|
---|
[58] | 953 | if (foutstream) { /*log_it("Finished writing to foutstream"); */
|
---|
| 954 | } else {
|
---|
| 955 | paranoid_fclose(fout);
|
---|
| 956 | }
|
---|
| 957 | res = read_header_block_from_stream(&temp_size, temp_cksum, &ctrl_chr);
|
---|
| 958 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 959 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
[1] | 960 | // fatal_error("Bad marker"); // return(1);
|
---|
[58] | 961 | }
|
---|
| 962 | if (strcmp(temp_cksum, actual_cksum)) {
|
---|
[900] | 963 | mr_asprintf(&tmp, _("actual cksum=%s; recorded cksum=%s"), actual_cksum,
|
---|
[127] | 964 | temp_cksum);
|
---|
[58] | 965 | log_to_screen(tmp);
|
---|
[900] | 966 | mr_free(tmp);
|
---|
[122] | 967 |
|
---|
[900] | 968 | mr_asprintf(&tmp, _("%s (%ld K) is corrupt on tape"), temp_fname,
|
---|
[127] | 969 | (long) orig_size >> 10);
|
---|
[58] | 970 | log_to_screen(tmp);
|
---|
[900] | 971 | mr_free(tmp);
|
---|
[58] | 972 | retval++;
|
---|
| 973 | }
|
---|
[900] | 974 | mr_free(actual_cksum);
|
---|
| 975 | mr_free(datablock);
|
---|
| 976 | mr_free(temp_fname);
|
---|
| 977 | mr_free(temp_cksum);
|
---|
[58] | 978 | return (retval);
|
---|
[1] | 979 | }
|
---|
| 980 |
|
---|
| 981 |
|
---|
| 982 | /**
|
---|
| 983 | * Read a header block from the currently opened stream (CD or tape).
|
---|
| 984 | * This block indicates the length of the following file (if it's file-related)
|
---|
| 985 | * the filename (if it's file-related), and the block type.
|
---|
| 986 | * @param plen Where to put the length of the file. Valid only for file-related header blocks.
|
---|
| 987 | * @param filename Where to put the name of the file. Valid only for file-related header blocks.
|
---|
| 988 | * @param pcontrol_char Where to put the type of block (e.g. start-file, end-file, start-tape, ...)
|
---|
| 989 | * @return 0 for success, nonzero for failure.
|
---|
| 990 | * @note If you read a marker (@p pcontrol_char) you're not expecting, you can call wrong_marker().
|
---|
| 991 | */
|
---|
| 992 | int
|
---|
[58] | 993 | read_header_block_from_stream(long long *plen, char *filename,
|
---|
| 994 | int *pcontrol_char)
|
---|
[1] | 995 | {
|
---|
| 996 |
|
---|
[58] | 997 | /*@ buffers ***************************************************** */
|
---|
| 998 | char *tempblock;
|
---|
[1] | 999 |
|
---|
[58] | 1000 | /*@ int ********************************************************* */
|
---|
| 1001 | int i, retval;
|
---|
[1] | 1002 |
|
---|
[58] | 1003 | /*@ end vars *************************************************** */
|
---|
[1] | 1004 |
|
---|
[58] | 1005 | tempblock = (char *) malloc((size_t) TAPE_BLOCK_SIZE);
|
---|
[1] | 1006 |
|
---|
[58] | 1007 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
| 1008 | tempblock[i] = 0;
|
---|
| 1009 | }
|
---|
| 1010 | while (!(*pcontrol_char = tempblock[7000])) {
|
---|
| 1011 | g_tape_posK +=
|
---|
| 1012 | fread(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1013 | g_tape_stream) / 1024;
|
---|
| 1014 | }
|
---|
| 1015 | memcpy((char *) plen, tempblock + 7001, sizeof(long long));
|
---|
| 1016 | if (strcmp(tempblock + 6000 + *pcontrol_char, "Mondolicious, baby")) {
|
---|
| 1017 | log_it("Bad header block at %ld K", (long) g_tape_posK);
|
---|
| 1018 | }
|
---|
[122] | 1019 | /* the caller manages whether we should allocate or not
|
---|
| 1020 | * by setting the value to NULL (do not allocate) or
|
---|
| 1021 | * something (allocate) */
|
---|
| 1022 | if (filename != NULL) {
|
---|
[900] | 1023 | mr_asprintf(&filename, tempblock + 1000);
|
---|
[122] | 1024 | }
|
---|
[58] | 1025 | if (*pcontrol_char == BLK_ABORTED_BACKUP) {
|
---|
| 1026 | log_to_screen("I can't verify an aborted backup.");
|
---|
| 1027 | retval = 1;
|
---|
| 1028 | } else {
|
---|
| 1029 | retval = 0;
|
---|
| 1030 | }
|
---|
| 1031 | for (i = 1000; i < 1020; i++) {
|
---|
| 1032 | if (tempblock[i] < 32 || tempblock[i] > 126) {
|
---|
| 1033 | tempblock[i] = ' ';
|
---|
| 1034 | }
|
---|
| 1035 | }
|
---|
| 1036 | tempblock[i] = '\0';
|
---|
| 1037 | log_msg(6, "%s (fname=%s, size=%ld K)",
|
---|
| 1038 | marker_to_string(*pcontrol_char), tempblock + 1000,
|
---|
| 1039 | (long) (*plen) >> 10);
|
---|
[900] | 1040 | mr_free(tempblock);
|
---|
[58] | 1041 | return (retval);
|
---|
[1] | 1042 | }
|
---|
| 1043 |
|
---|
| 1044 |
|
---|
| 1045 | /**
|
---|
| 1046 | * Add specified file/slice to the internal catalog of all archives written.
|
---|
| 1047 | * This lets us restart on a new CD/tape/whatever if it runs out of room. We just
|
---|
| 1048 | * write the last [buffer size] MB from the catalog to the new tape, so we know
|
---|
| 1049 | * we have @e all archives on some CD/tape/whatever.
|
---|
| 1050 | * @param type The type of file we're cataloging (afioball, slice, something else)
|
---|
| 1051 | * @param number The fileset number or biggiefile number.
|
---|
| 1052 | * @param aux The slice number if it's a biggiefile, or any other additional info.
|
---|
| 1053 | * @param fn The original full pathname of the file we're recording.
|
---|
| 1054 | * @return The index of the record we just added.
|
---|
| 1055 | */
|
---|
[58] | 1056 | int register_in_tape_catalog(t_archtype type, int number, long aux,
|
---|
| 1057 | char *fn)
|
---|
[1] | 1058 | {
|
---|
[58] | 1059 | int last;
|
---|
| 1060 | char fname[MAX_TAPECAT_FNAME_LEN];
|
---|
| 1061 | char *p;
|
---|
[1] | 1062 |
|
---|
[58] | 1063 | p = strrchr(fn, '/');
|
---|
| 1064 | if (p) {
|
---|
| 1065 | p++;
|
---|
| 1066 | } else {
|
---|
| 1067 | p = fn;
|
---|
| 1068 | }
|
---|
| 1069 | strncpy(fname, p, MAX_TAPECAT_FNAME_LEN);
|
---|
| 1070 | fname[MAX_TAPECAT_FNAME_LEN] = '\0';
|
---|
| 1071 | last = g_tapecatalog->entries;
|
---|
| 1072 | if (last >= MAX_TAPECATALOG_ENTRIES) {
|
---|
| 1073 | log_it
|
---|
| 1074 | ("Warning - can't log #%d in tape catalog - too many entries already",
|
---|
| 1075 | number);
|
---|
| 1076 | return (-1);
|
---|
| 1077 | }
|
---|
| 1078 | g_tapecatalog->el[last].type = type;
|
---|
| 1079 | g_tapecatalog->el[last].number = number;
|
---|
| 1080 | g_tapecatalog->el[last].aux = aux;
|
---|
| 1081 | g_tapecatalog->el[last].tape_posK = g_tape_posK;
|
---|
| 1082 | strcpy(g_tapecatalog->el[last].fname, fname);
|
---|
| 1083 | g_tapecatalog->entries++;
|
---|
| 1084 | return (last); // returns the index of the record we've jsut added
|
---|
[1] | 1085 | }
|
---|
| 1086 |
|
---|
| 1087 |
|
---|
| 1088 | /**
|
---|
| 1089 | * Decide whether we should start a new tape. This is TRUE if we've run out of tape
|
---|
| 1090 | * (got SIGPIPE) or look like we will.
|
---|
| 1091 | * @param mediasize The size of the tape in megabytes.
|
---|
| 1092 | * @param length_of_incoming_file The length of the file we're about to write, in bytes.
|
---|
| 1093 | * @bug This seems like it'll only work for media_size != autodetect, but Mondo only allows
|
---|
| 1094 | * autodetecting the size. Huh?
|
---|
| 1095 | */
|
---|
[687] | 1096 |
|
---|
| 1097 | /* BERLIOS: Should be reviewed for mediasize being a off_t ??? */
|
---|
[1] | 1098 | bool
|
---|
[58] | 1099 | should_we_write_to_next_tape(long mediasize,
|
---|
[687] | 1100 | off_t length_of_incoming_file)
|
---|
[1] | 1101 | {
|
---|
[58] | 1102 | /*@ bool's ***************************************************** */
|
---|
| 1103 | bool we_need_a_new_tape = FALSE;
|
---|
[1] | 1104 |
|
---|
[58] | 1105 | /*@ end vars *************************************************** */
|
---|
[1] | 1106 |
|
---|
[58] | 1107 | if (mediasize == 0) {
|
---|
| 1108 | return (FALSE);
|
---|
| 1109 | }
|
---|
| 1110 | if (mediasize > 0 && (g_tape_posK >> 10 >= mediasize)) {
|
---|
| 1111 | log_it("mediasize = %ld", mediasize);
|
---|
| 1112 | we_need_a_new_tape = TRUE;
|
---|
[507] | 1113 | log_to_screen(_("Should have started a new tape/CD already"));
|
---|
[58] | 1114 | }
|
---|
| 1115 | if ((g_tape_posK + length_of_incoming_file / 1024) >> 10 >=
|
---|
| 1116 | mediasize - (SLICE_SIZE * 4 / 1024)) {
|
---|
| 1117 | log_it("g_tape_posK = %ld\nmediasize = %ld\n", g_tape_posK,
|
---|
| 1118 | mediasize);
|
---|
| 1119 | we_need_a_new_tape = TRUE;
|
---|
| 1120 | }
|
---|
| 1121 | return (we_need_a_new_tape);
|
---|
[1] | 1122 | }
|
---|
| 1123 |
|
---|
| 1124 |
|
---|
| 1125 | /**
|
---|
| 1126 | * Seek through the stream until we find a header block where the NAME field matches
|
---|
| 1127 | * @p the_file_I_was_reading. This is useful if you've just started reading from
|
---|
| 1128 | * a new tape and want to find the file you were reading when the tape ended.
|
---|
| 1129 | * @param the_file_I_was_reading File name to look for.
|
---|
| 1130 | * @return 0 for success, nonzero for failure.
|
---|
| 1131 | */
|
---|
[58] | 1132 | int skip_incoming_files_until_we_find_this_one(char
|
---|
| 1133 | *the_file_I_was_reading)
|
---|
[1] | 1134 | {
|
---|
[58] | 1135 | char *pA;
|
---|
| 1136 | char *pB;
|
---|
| 1137 | int res;
|
---|
| 1138 | int ctrl_chr;
|
---|
[147] | 1139 | char *temp_fname = (char *)&res; /* should NOT be NULL */
|
---|
[58] | 1140 | char *datablock;
|
---|
| 1141 | long long temp_size, size;
|
---|
| 1142 | long bytes_to_write;
|
---|
[1] | 1143 |
|
---|
[58] | 1144 | datablock = malloc(TAPE_BLOCK_SIZE);
|
---|
| 1145 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1146 | if (pB) {
|
---|
| 1147 | pB++;
|
---|
| 1148 | } else {
|
---|
| 1149 | pB = the_file_I_was_reading;
|
---|
[1] | 1150 | }
|
---|
[58] | 1151 | log_msg(1, "skip_incoming_..(%s)", pB);
|
---|
| 1152 | log_msg(2, "Looking for initial START_AN_AFIO_OR_SLICE");
|
---|
| 1153 | ctrl_chr = -1;
|
---|
| 1154 | while (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1155 | res =
|
---|
| 1156 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1157 | &ctrl_chr);
|
---|
| 1158 | if (ctrl_chr == BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1159 | break;
|
---|
| 1160 | }
|
---|
| 1161 | log_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
| 1162 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1163 | log_msg(3, "Still trying to re-sync w/ tape");
|
---|
[900] | 1164 | mr_free(temp_fname);
|
---|
[147] | 1165 | temp_fname = (char *)&res;
|
---|
[58] | 1166 | }
|
---|
| 1167 | while (ctrl_chr != BLK_START_FILE) {
|
---|
| 1168 | res =
|
---|
| 1169 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1170 | &ctrl_chr);
|
---|
| 1171 | if (ctrl_chr == BLK_START_FILE) {
|
---|
| 1172 | break;
|
---|
| 1173 | }
|
---|
| 1174 | log_msg(1, "%lld %s %c", temp_size, temp_fname, ctrl_chr);
|
---|
| 1175 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1176 | log_msg(3, "Still trying to re-sync w/ tape");
|
---|
[122] | 1177 | /* Do not desallocate when the while condition is met */
|
---|
| 1178 | if (ctrl_chr != BLK_START_FILE) {
|
---|
[900] | 1179 | mr_free(temp_fname);
|
---|
[147] | 1180 | temp_fname = (char *)&res;
|
---|
[122] | 1181 | }
|
---|
[58] | 1182 | }
|
---|
| 1183 | pA = strrchr(temp_fname, '/');
|
---|
| 1184 | if (pA) {
|
---|
| 1185 | pA++;
|
---|
| 1186 | } else {
|
---|
| 1187 | pA = temp_fname;
|
---|
| 1188 | }
|
---|
| 1189 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1190 | if (pB) {
|
---|
| 1191 | pB++;
|
---|
| 1192 | } else {
|
---|
| 1193 | pB = the_file_I_was_reading;
|
---|
| 1194 | }
|
---|
| 1195 | while (strcmp(pA, pB)) {
|
---|
| 1196 | log_msg(6, "Skipping %s (it's not %s)", temp_fname,
|
---|
| 1197 | the_file_I_was_reading);
|
---|
| 1198 | for (size = temp_size; size > 0; size -= bytes_to_write) {
|
---|
| 1199 | bytes_to_write =
|
---|
| 1200 | (size < TAPE_BLOCK_SIZE) ? (long) size : TAPE_BLOCK_SIZE;
|
---|
| 1201 | // FIXME - needs error-checking and -catching
|
---|
| 1202 | fread(datablock, 1, (size_t) TAPE_BLOCK_SIZE, g_tape_stream);
|
---|
| 1203 | }
|
---|
[127] | 1204 |
|
---|
[900] | 1205 | mr_free(temp_fname);
|
---|
[147] | 1206 | temp_fname = (char *)&res;
|
---|
[127] | 1207 | res = read_header_block_from_stream(&temp_size, NULL, &ctrl_chr);
|
---|
[58] | 1208 | if (ctrl_chr != BLK_STOP_FILE) {
|
---|
| 1209 | wrong_marker(BLK_STOP_FILE, ctrl_chr);
|
---|
| 1210 | }
|
---|
[127] | 1211 | res = read_header_block_from_stream(&temp_size, NULL, &ctrl_chr);
|
---|
[58] | 1212 | if (ctrl_chr != BLK_STOP_AN_AFIO_OR_SLICE) {
|
---|
| 1213 | wrong_marker(BLK_STOP_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1214 | }
|
---|
[127] | 1215 | res = read_header_block_from_stream(&temp_size, NULL, &ctrl_chr);
|
---|
[58] | 1216 | if (ctrl_chr != BLK_START_AN_AFIO_OR_SLICE) {
|
---|
| 1217 | wrong_marker(BLK_START_AN_AFIO_OR_SLICE, ctrl_chr);
|
---|
| 1218 | }
|
---|
| 1219 | res =
|
---|
| 1220 | read_header_block_from_stream(&temp_size, temp_fname,
|
---|
| 1221 | &ctrl_chr);
|
---|
| 1222 | if (ctrl_chr != BLK_START_FILE) {
|
---|
| 1223 | wrong_marker(BLK_START_FILE, ctrl_chr);
|
---|
| 1224 | }
|
---|
| 1225 | pA = strrchr(temp_fname, '/');
|
---|
| 1226 | if (pA) {
|
---|
| 1227 | pA++;
|
---|
| 1228 | } else {
|
---|
| 1229 | pA = temp_fname;
|
---|
| 1230 | }
|
---|
[122] | 1231 | /* BERLIOS: useless ?
|
---|
[127] | 1232 | pB = strrchr(the_file_I_was_reading, '/');
|
---|
| 1233 | if (pB) {
|
---|
| 1234 | pB++;
|
---|
| 1235 | } else {
|
---|
| 1236 | pB = the_file_I_was_reading;
|
---|
| 1237 | }
|
---|
| 1238 | */
|
---|
[58] | 1239 | }
|
---|
| 1240 | log_msg(2, "Reading %s (it matches %s)", temp_fname,
|
---|
| 1241 | the_file_I_was_reading);
|
---|
[900] | 1242 | mr_free(temp_fname);
|
---|
| 1243 | mr_free(datablock);
|
---|
[58] | 1244 | return (0);
|
---|
[1] | 1245 | }
|
---|
| 1246 |
|
---|
| 1247 |
|
---|
| 1248 | /**
|
---|
| 1249 | * Start to read from the next tape. Assumes the user has already inserted it.
|
---|
| 1250 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1251 | * @return 0 for success, nonzero for failure.
|
---|
| 1252 | */
|
---|
[58] | 1253 | int start_to_read_from_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1254 | {
|
---|
[58] | 1255 | /*@ int ********************************************************* */
|
---|
| 1256 | int res = 0;
|
---|
| 1257 | int ctrlchr;
|
---|
| 1258 | long long temp_size;
|
---|
| 1259 | /*@ end vars *************************************************** */
|
---|
[1] | 1260 |
|
---|
[58] | 1261 | paranoid_pclose(g_tape_stream);
|
---|
[688] | 1262 | sync();
|
---|
| 1263 | sync();
|
---|
| 1264 | sync();
|
---|
[58] | 1265 | log_it("Next tape requested.");
|
---|
| 1266 | insist_on_this_tape_number(g_current_media_number + 1); // will increment it, too
|
---|
| 1267 | log_it("Opening IN the next tape");
|
---|
| 1268 | if (!
|
---|
| 1269 | (g_tape_stream =
|
---|
| 1270 | open_device_via_buffer(bkpinfo->media_device, 'r',
|
---|
| 1271 | bkpinfo->internal_tape_block_size))) {
|
---|
[507] | 1272 | log_to_screen(_("Cannot openin stream device"));
|
---|
[58] | 1273 | return (1);
|
---|
| 1274 | }
|
---|
| 1275 | g_tape_posK = 0;
|
---|
| 1276 | g_sigpipe = FALSE;
|
---|
[122] | 1277 | res += read_header_block_from_stream(&temp_size, NULL, &ctrlchr); /* just in case */
|
---|
[58] | 1278 | if (ctrlchr != BLK_START_OF_TAPE) {
|
---|
| 1279 | wrong_marker(BLK_START_OF_TAPE, ctrlchr);
|
---|
| 1280 | }
|
---|
[122] | 1281 | res += read_header_block_from_stream(&temp_size, NULL, &ctrlchr); /* just in case */
|
---|
[58] | 1282 | if (ctrlchr != BLK_START_OF_BACKUP) {
|
---|
| 1283 | wrong_marker(BLK_START_OF_BACKUP, ctrlchr);
|
---|
| 1284 | } else {
|
---|
| 1285 | log_msg(3, "Next tape opened OK. Whoopee!");
|
---|
| 1286 | }
|
---|
| 1287 | return (res);
|
---|
[1] | 1288 | }
|
---|
| 1289 |
|
---|
| 1290 |
|
---|
| 1291 | /**
|
---|
| 1292 | * Start to write to the next tape. Assume the user has already inserted it.
|
---|
| 1293 | * @param bkpinfo The backup information structure. @c bkpinfo->media_device is the only field used.
|
---|
| 1294 | * @return 0 for success, nonzero for failure.
|
---|
| 1295 | */
|
---|
[58] | 1296 | int start_to_write_to_next_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1297 | {
|
---|
[58] | 1298 | int res = 0;
|
---|
[122] | 1299 | char *command;
|
---|
| 1300 |
|
---|
[58] | 1301 | paranoid_pclose(g_tape_stream);
|
---|
[688] | 1302 | sync();
|
---|
| 1303 | sync();
|
---|
| 1304 | sync();
|
---|
[58] | 1305 | log_it("New tape requested.");
|
---|
| 1306 | insist_on_this_tape_number(g_current_media_number + 1); // will increment g_current_media, too
|
---|
| 1307 | if (g_current_media_number > MAX_NOOF_MEDIA) {
|
---|
| 1308 | res++;
|
---|
[507] | 1309 | log_to_screen(_("Too many tapes. Man, you need to use nfs!"));
|
---|
[1] | 1310 | }
|
---|
[58] | 1311 | if (bkpinfo->backup_media_type == cdstream) {
|
---|
[900] | 1312 | mr_asprintf(&command,
|
---|
[127] | 1313 | "cdrecord -eject dev=%s speed=%d fs=24m -waiti - >> %s 2>> %s",
|
---|
| 1314 | bkpinfo->media_device, bkpinfo->cdrw_speed, MONDO_LOGFILE,
|
---|
| 1315 | MONDO_LOGFILE);
|
---|
[58] | 1316 | log_it("Opening OUT to next CD with the command");
|
---|
| 1317 | log_it(command);
|
---|
| 1318 | log_it("Let's see what happens, shall we?");
|
---|
| 1319 | g_tape_stream = popen(command, "w");
|
---|
[900] | 1320 | mr_free(command);
|
---|
[58] | 1321 | if (!g_tape_stream) {
|
---|
[507] | 1322 | log_to_screen(_("Failed to openout to cdstream (fifo)"));
|
---|
[58] | 1323 | return (1);
|
---|
| 1324 | }
|
---|
| 1325 | } else {
|
---|
| 1326 | log_it("Opening OUT to next tape");
|
---|
| 1327 | if (!
|
---|
| 1328 | (g_tape_stream =
|
---|
| 1329 | open_device_via_buffer(bkpinfo->media_device, 'w',
|
---|
| 1330 | bkpinfo->internal_tape_block_size))) {
|
---|
[507] | 1331 | log_to_screen(_("Cannot openin stream device"));
|
---|
[58] | 1332 | return (1);
|
---|
| 1333 | }
|
---|
[1] | 1334 | }
|
---|
[58] | 1335 | g_tape_posK = 0;
|
---|
| 1336 | g_sigpipe = FALSE;
|
---|
[687] | 1337 | res += write_header_block_to_stream((off_t)0, "start-of-tape", BLK_START_OF_TAPE); /* just in case */
|
---|
| 1338 | res += write_header_block_to_stream((off_t)0, "start-of-backup", BLK_START_OF_BACKUP); /* just in case */
|
---|
[58] | 1339 | return (res);
|
---|
[1] | 1340 | }
|
---|
| 1341 |
|
---|
| 1342 |
|
---|
| 1343 | /**
|
---|
| 1344 | * Write a bufferfull of the most recent archives to the tape. The
|
---|
| 1345 | * rationale behind this is a bit complex. If the previous tape ended
|
---|
| 1346 | * suddenly (EOF or otherwise) some archives were probably left in the
|
---|
| 1347 | * buffer. That means that Mondo thinks they have been written, but
|
---|
| 1348 | * the external binary @c buffer has not actually written them. So to
|
---|
| 1349 | * be safe, we start the new tape by writing the last bufferfull from
|
---|
| 1350 | * the old one. This insures that all archives will be on at least
|
---|
| 1351 | * one tape. Sounds inelegant, but it works.
|
---|
| 1352 | * @param bkpinfo The backup information structure. @c bkpinfo->tmpdir is the only field used.
|
---|
| 1353 | * @return 0 for success, nonzero for failure.
|
---|
| 1354 | */
|
---|
[58] | 1355 | int write_backcatalog_to_tape(struct s_bkpinfo *bkpinfo)
|
---|
[1] | 1356 | {
|
---|
[58] | 1357 | int i, last, res = 0;
|
---|
| 1358 | char *fname;
|
---|
[1] | 1359 |
|
---|
[58] | 1360 | log_msg(2, "I am now writing back catalog to tape");
|
---|
| 1361 | last = g_tapecatalog->entries - 1;
|
---|
| 1362 | for (i = 0; i <= last; i++) {
|
---|
[900] | 1363 | mr_asprintf(&fname, "%s/tmpfs/backcatalog/%s", bkpinfo->tmpdir,
|
---|
[127] | 1364 | g_tapecatalog->el[i].fname);
|
---|
[58] | 1365 | if (!does_file_exist(fname)) {
|
---|
| 1366 | log_msg(6, "Can't write %s - it doesn't exist.", fname);
|
---|
| 1367 | } else {
|
---|
| 1368 | write_header_block_to_stream(length_of_file(fname),
|
---|
| 1369 | "start-backcatalog-afio-or-slice",
|
---|
| 1370 | BLK_START_AN_AFIO_OR_SLICE);
|
---|
| 1371 | log_msg(2, "Writing %s", fname);
|
---|
| 1372 | if (write_file_to_stream_from_file(bkpinfo, fname)) {
|
---|
| 1373 | res++;
|
---|
| 1374 | log_msg(2, "%s failed", fname);
|
---|
| 1375 | }
|
---|
| 1376 | if (i != last) {
|
---|
[687] | 1377 | write_header_block_to_stream((off_t)0,
|
---|
[58] | 1378 | "stop-backcatalog-afio-or-slice",
|
---|
| 1379 | BLK_STOP_AN_AFIO_OR_SLICE);
|
---|
| 1380 | }
|
---|
| 1381 | }
|
---|
[900] | 1382 | mr_free(fname);
|
---|
[58] | 1383 | }
|
---|
| 1384 | log_msg(2, "Finished writing back catalog to tape");
|
---|
| 1385 | return (res);
|
---|
[1] | 1386 | }
|
---|
| 1387 |
|
---|
| 1388 |
|
---|
| 1389 | /**
|
---|
| 1390 | * Write all.tar.gz (produced by Mindi) to the first 32M of the first tape.
|
---|
| 1391 | * @param fname The path to all.tar.gz.
|
---|
| 1392 | * @return 0 for success, nonzero for failure.
|
---|
| 1393 | */
|
---|
[58] | 1394 | int write_data_disks_to_stream(char *fname)
|
---|
[1] | 1395 | {
|
---|
[58] | 1396 | /*@ pointers *************************************************** */
|
---|
| 1397 | FILE *fin;
|
---|
[122] | 1398 | char *tmp;
|
---|
[1] | 1399 |
|
---|
[58] | 1400 | /*@ long ******************************************************* */
|
---|
| 1401 | long m = -1;
|
---|
| 1402 | long templong;
|
---|
[1] | 1403 |
|
---|
[58] | 1404 | /*@ int ******************************************************** */
|
---|
| 1405 | int i, j;
|
---|
[1] | 1406 |
|
---|
[58] | 1407 | /*@ buffers **************************************************** */
|
---|
| 1408 | char tempblock[256 * 1024];
|
---|
[1] | 1409 |
|
---|
[58] | 1410 | /*@ end vars *************************************************** */
|
---|
[1] | 1411 |
|
---|
[507] | 1412 | open_evalcall_form(_("Writing data disks to tape"));
|
---|
| 1413 | log_to_screen(_("Writing data disks to tape"));
|
---|
[58] | 1414 | log_it("Data disks = %s", fname);
|
---|
| 1415 | if (!does_file_exist(fname)) {
|
---|
[900] | 1416 | mr_asprintf(&tmp, _("Cannot find %s"), fname);
|
---|
[58] | 1417 | log_to_screen(tmp);
|
---|
[900] | 1418 | mr_free(tmp);
|
---|
[58] | 1419 | return (1);
|
---|
[1] | 1420 | }
|
---|
[58] | 1421 | if (!(fin = fopen(fname, "r"))) {
|
---|
| 1422 | log_OS_error(fname);
|
---|
| 1423 | fatal_error("Cannot openin the data disk");
|
---|
| 1424 | }
|
---|
| 1425 | for (i = 0; i < 32; i++) { /* 32MB */
|
---|
| 1426 | for (j = 0; j < 4; j++) { /* 256K x 4 = 1MB (1024K) */
|
---|
| 1427 | if (!feof(fin)) {
|
---|
| 1428 | m = (long) fread(tempblock, 1, 256 * 1024, fin);
|
---|
| 1429 | } else {
|
---|
| 1430 | m = 0;
|
---|
| 1431 | }
|
---|
| 1432 | for (; m < 256 * 1024; m++) {
|
---|
| 1433 | tempblock[m] = '\0';
|
---|
| 1434 | }
|
---|
| 1435 | g_tape_posK +=
|
---|
| 1436 | fwrite(tempblock, 1, 256 * 1024, g_tape_stream) / 1024;
|
---|
| 1437 | }
|
---|
| 1438 | if (i > g_tape_buffer_size_MB) // otherwise, 'buffer' distorts calculations
|
---|
| 1439 | {
|
---|
| 1440 | templong = ((i - 8) * 4 + j) * 100 / (128 - 8 * 4);
|
---|
| 1441 | update_evalcall_form((int) (templong));
|
---|
| 1442 | }
|
---|
| 1443 | }
|
---|
| 1444 | paranoid_fclose(fin);
|
---|
| 1445 | close_evalcall_form();
|
---|
| 1446 | return (0);
|
---|
[1] | 1447 | }
|
---|
| 1448 |
|
---|
| 1449 |
|
---|
| 1450 | /**
|
---|
| 1451 | * Copy @p infile to the opened stream (CD or tape).
|
---|
| 1452 | * @param bkpinfo The backup information structure. @c bkpinfo->media_size is the only field used.
|
---|
| 1453 | * @param infile The file to write to the stream.
|
---|
| 1454 | * @return 0 for success, nonzero for failure.
|
---|
| 1455 | */
|
---|
[58] | 1456 | int write_file_to_stream_from_file(struct s_bkpinfo *bkpinfo, char *infile)
|
---|
[1] | 1457 | {
|
---|
[58] | 1458 | /*@ buffers **************************************************** */
|
---|
[122] | 1459 | char *tmp;
|
---|
[58] | 1460 | char datablock[TAPE_BLOCK_SIZE];
|
---|
[122] | 1461 | char *checksum;
|
---|
[58] | 1462 | char *infile_basename;
|
---|
[1] | 1463 |
|
---|
[58] | 1464 | /*@ int ******************************************************** */
|
---|
| 1465 | int retval = 0;
|
---|
| 1466 | int noof_blocks;
|
---|
[1] | 1467 |
|
---|
[58] | 1468 | /* unsigned int ch; */
|
---|
| 1469 | unsigned int crc16;
|
---|
| 1470 | unsigned int crctt;
|
---|
[1] | 1471 |
|
---|
[58] | 1472 | /*@ pointers *************************************************** */
|
---|
| 1473 | FILE *fin;
|
---|
| 1474 | char *p;
|
---|
[1] | 1475 |
|
---|
[58] | 1476 | /*@ long ******************************************************* */
|
---|
| 1477 | long bytes_to_read = 0;
|
---|
| 1478 | long i;
|
---|
[1] | 1479 |
|
---|
[687] | 1480 | off_t filesize;
|
---|
[1] | 1481 |
|
---|
| 1482 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[58] | 1483 | int ch;
|
---|
[1] | 1484 | #endif
|
---|
| 1485 |
|
---|
[58] | 1486 | /*@ initialize ************************************************ */
|
---|
| 1487 | crc16 = 0;
|
---|
| 1488 | crctt = 0;
|
---|
[1] | 1489 |
|
---|
[58] | 1490 | /*@ end vars *************************************************** */
|
---|
[1] | 1491 |
|
---|
[58] | 1492 | infile_basename = strrchr(infile, '/');
|
---|
| 1493 | if (infile_basename) {
|
---|
| 1494 | infile_basename++;
|
---|
| 1495 | } else {
|
---|
| 1496 | infile_basename = infile;
|
---|
| 1497 | }
|
---|
| 1498 | filesize = length_of_file(infile);
|
---|
| 1499 | if (should_we_write_to_next_tape
|
---|
| 1500 | (bkpinfo->media_size[g_current_media_number], filesize)) {
|
---|
| 1501 | start_to_write_to_next_tape(bkpinfo);
|
---|
| 1502 | write_backcatalog_to_tape(bkpinfo);
|
---|
| 1503 | }
|
---|
| 1504 | p = strrchr(infile, '/');
|
---|
| 1505 | if (!p) {
|
---|
| 1506 | p = infile;
|
---|
| 1507 | } else {
|
---|
| 1508 | p++;
|
---|
| 1509 | }
|
---|
[900] | 1510 | mr_asprintf(&tmp, "Writing file '%s' to tape (%ld KB)", p,
|
---|
[127] | 1511 | (long) filesize >> 10);
|
---|
[58] | 1512 | log_it(tmp);
|
---|
[900] | 1513 | mr_free(tmp);
|
---|
[122] | 1514 |
|
---|
[58] | 1515 | write_header_block_to_stream(filesize, infile_basename,
|
---|
| 1516 | BLK_START_FILE);
|
---|
[1] | 1517 | //go_here_to_restart_saving_of_file:
|
---|
[58] | 1518 | if (!(fin = fopen(infile, "r"))) {
|
---|
| 1519 | log_OS_error(infile);
|
---|
| 1520 | return (1);
|
---|
[1] | 1521 | }
|
---|
[58] | 1522 | for (noof_blocks = 0; filesize > 0;
|
---|
| 1523 | noof_blocks++, filesize -= bytes_to_read) {
|
---|
| 1524 | if (filesize < TAPE_BLOCK_SIZE) {
|
---|
| 1525 | bytes_to_read = (long) filesize;
|
---|
| 1526 | for (i = 0; i < TAPE_BLOCK_SIZE; i++) {
|
---|
| 1527 | datablock[i] = '\0';
|
---|
| 1528 | }
|
---|
| 1529 | } else {
|
---|
| 1530 | bytes_to_read = TAPE_BLOCK_SIZE;
|
---|
| 1531 | }
|
---|
| 1532 | (void) fread(datablock, 1, (size_t) bytes_to_read, fin);
|
---|
[59] | 1533 | g_tape_posK += fwrite(datablock, 1, /*bytes_to_read */
|
---|
| 1534 | (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1535 | g_tape_stream) / 1024;
|
---|
[58] | 1536 | if (g_sigpipe) {
|
---|
| 1537 | iamhere("Sigpipe occurred recently. I'll start a new tape.");
|
---|
| 1538 | fclose(fin);
|
---|
| 1539 | g_sigpipe = FALSE;
|
---|
| 1540 | start_to_write_to_next_tape(bkpinfo);
|
---|
| 1541 | write_backcatalog_to_tape(bkpinfo); // kinda-sorta recursive :)
|
---|
| 1542 | return (0);
|
---|
| 1543 | }
|
---|
[1] | 1544 | #ifdef EXTRA_TAPE_CHECKSUMS
|
---|
[58] | 1545 | for (i = 0; i < bytes_to_read; i++) {
|
---|
| 1546 | ch = datablock[i];
|
---|
| 1547 | crc16 = updcrcr(crc16, (unsigned) ch);
|
---|
| 1548 | crctt = updcrc(crctt, (unsigned) ch);
|
---|
| 1549 | }
|
---|
[1] | 1550 | #endif
|
---|
[58] | 1551 | }
|
---|
| 1552 | paranoid_fclose(fin);
|
---|
[900] | 1553 | mr_asprintf(&checksum, "%04x%04x", crc16, crctt);
|
---|
[687] | 1554 | /* BERLIOS: what does it do ??? */
|
---|
| 1555 | write_header_block_to_stream((off_t)g_current_media_number, checksum,
|
---|
[58] | 1556 | BLK_STOP_FILE);
|
---|
[900] | 1557 | mr_free(checksum);
|
---|
[1] | 1558 | // log_it("File '%s' written to tape.", infile);
|
---|
[58] | 1559 | return (retval);
|
---|
[1] | 1560 | }
|
---|
| 1561 |
|
---|
| 1562 |
|
---|
| 1563 | /**
|
---|
| 1564 | * Write a header block to the opened stream (CD or tape).
|
---|
| 1565 | * @param length_of_incoming_file The length to store in the header block.
|
---|
| 1566 | * Usually matters only if this is a file-related header, in which case it should
|
---|
| 1567 | * be the length of the file that will follow.
|
---|
| 1568 | * @param filename The filename to store in the header block. Usually matters
|
---|
| 1569 | * only if this is a file-related header, in which case this should be the name
|
---|
| 1570 | * if the file that will follow.
|
---|
| 1571 | * @param control_char The type of header block this is (start-file, end-file, start-tape, ...)
|
---|
| 1572 | * @return 0 for success, nonzero for failure.
|
---|
| 1573 | */
|
---|
| 1574 | int
|
---|
[687] | 1575 | write_header_block_to_stream(off_t length_of_incoming_file,
|
---|
[58] | 1576 | char *filename, int control_char)
|
---|
[1] | 1577 | {
|
---|
[58] | 1578 | /*@ buffers **************************************************** */
|
---|
| 1579 | char tempblock[TAPE_BLOCK_SIZE];
|
---|
[122] | 1580 | char *tmp;
|
---|
[58] | 1581 | char *p;
|
---|
[1] | 1582 |
|
---|
[58] | 1583 | /*@ int ******************************************************** */
|
---|
| 1584 | int i;
|
---|
[1] | 1585 |
|
---|
[687] | 1586 | off_t olen;
|
---|
[1] | 1587 |
|
---|
[58] | 1588 | /*@ end vars *************************************************** */
|
---|
[1] | 1589 |
|
---|
| 1590 |
|
---|
[58] | 1591 | olen = length_of_incoming_file;
|
---|
| 1592 | p = strrchr(filename, '/'); /* Make 'em go, "Unnnh!" Oh wait, that was _Master_ P... */
|
---|
| 1593 | if (!p) {
|
---|
| 1594 | p = filename;
|
---|
| 1595 | } else {
|
---|
| 1596 | p++;
|
---|
| 1597 | }
|
---|
| 1598 | if (!g_tape_stream) {
|
---|
| 1599 | log_to_screen
|
---|
[507] | 1600 | (_("You're not backing up to tape. Why write a tape header?"));
|
---|
[58] | 1601 | return (1);
|
---|
| 1602 | }
|
---|
| 1603 | for (i = 0; i < (int) TAPE_BLOCK_SIZE; i++) {
|
---|
| 1604 | tempblock[i] = 0;
|
---|
| 1605 | }
|
---|
| 1606 | sprintf(tempblock + 6000 + control_char, "Mondolicious, baby");
|
---|
| 1607 | tempblock[7000] = control_char;
|
---|
[687] | 1608 | memcpy(tempblock + 7001, (char *) &olen, sizeof(off_t));
|
---|
[58] | 1609 | strcpy(tempblock + 1000, filename);
|
---|
| 1610 | g_tape_posK +=
|
---|
| 1611 | fwrite(tempblock, 1, (size_t) TAPE_BLOCK_SIZE,
|
---|
| 1612 | g_tape_stream) / 1024;
|
---|
[900] | 1613 | mr_asprintf(&tmp, "%s (fname=%s, size=%ld K)",
|
---|
[127] | 1614 | marker_to_string(control_char), p,
|
---|
| 1615 | (long) length_of_incoming_file >> 10);
|
---|
[58] | 1616 | log_msg(6, tmp);
|
---|
[900] | 1617 | mr_free(tmp);
|
---|
[58] | 1618 | return (0);
|
---|
[1] | 1619 | }
|
---|
| 1620 |
|
---|
| 1621 |
|
---|
| 1622 | /**
|
---|
| 1623 | * Log (to screen) an erroneous marker, along with what it should have been.
|
---|
| 1624 | * @param should_be What we were expecting.
|
---|
| 1625 | * @param it_is What we got.
|
---|
| 1626 | */
|
---|
[58] | 1627 | void wrong_marker(int should_be, int it_is)
|
---|
[1] | 1628 | {
|
---|
[58] | 1629 | /*@ buffer ***************************************************** */
|
---|
[122] | 1630 | char *tmp;
|
---|
[1] | 1631 |
|
---|
| 1632 |
|
---|
[58] | 1633 | /*@ end vars *************************************************** */
|
---|
[900] | 1634 | mr_asprintf(&tmp, _("Wrong marker! (Should be %s, is actually %s)"),
|
---|
[127] | 1635 | marker_to_string(should_be), marker_to_string(it_is));
|
---|
[58] | 1636 | log_to_screen(tmp);
|
---|
[900] | 1637 | mr_free(tmp);
|
---|
[1] | 1638 | }
|
---|
| 1639 |
|
---|
| 1640 | /* @} - end of streamGroup */
|
---|