[1] | 1 | /* libmondo-fork.c
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| 2 | $Id: libmondo-fork.c 30 2005-09-28 23:32:28Z bcornec $
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| 3 |
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| 4 | - subroutines for handling forking/pthreads/etc.
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| 5 |
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| 6 |
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| 7 | 06/20/2004
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| 8 | - create fifo /var/log/partimagehack-debug.log and empty it
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| 9 | to keep ramdisk from filling up
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| 10 |
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| 11 | 04/13/2004
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| 12 | - >= should be <= g_loglevel
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| 13 |
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| 14 | 11/15/2003
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| 15 | - changed a few []s to char*s
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| 16 |
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| 17 | 10/12
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| 18 | - rewrote partimagehack handling (multiple fifos, chunks, etc.)
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| 19 |
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| 20 | 10/11
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| 21 | - partimagehack now has debug level of N (set in my-stuff.h)
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| 22 |
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| 23 | 10/08
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| 24 | - call to partimagehack when restoring will now log errors to /var/log/....log
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| 25 |
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| 26 | 10/06
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| 27 | - cleaned up logging a bit
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| 28 |
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| 29 | 09/30
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| 30 | - line 735 - missing char* cmd in sprintf()
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| 31 |
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| 32 | 09/28
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| 33 | - added run_external_binary_with_percentage_indicator()
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| 34 | - rewritten eval_call_to_make_ISO()
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| 35 |
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| 36 | 09/18
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| 37 | - call mkstemp instead of mktemp
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| 38 |
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| 39 | 09/13
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| 40 | - major NTFS hackage
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| 41 |
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| 42 | 09/12
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| 43 | - paranoid_system("rm -f /tmp/ *PARTIMAGE*") before calling partimagehack
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| 44 |
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| 45 | 09/11
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| 46 | - forward-ported unbroken feed_*_partimage() subroutines
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| 47 | from early August 2003
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| 48 |
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| 49 | 09/08
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| 50 | - detect & use partimagehack if it exists
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| 51 |
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| 52 | 09/05
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| 53 | - finally finished partimagehack hack :)
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| 54 |
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| 55 | 07/04
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| 56 | - added subroutines to wrap around partimagehack
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| 57 |
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| 58 | 04/27
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| 59 | - don't echo (...res=%d...) at end of log_it()
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| 60 | unnecessarily
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| 61 | - replace newtFinished() and newtInit() with
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| 62 | newtSuspend() and newtResume()
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| 63 |
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| 64 | 04/24
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| 65 | - added some assert()'s and log_OS_error()'s
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| 66 |
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| 67 | 04/09
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| 68 | - cleaned up run_program_and_log_output()
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| 69 |
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| 70 | 04/07
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| 71 | - cleaned up code a bit
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| 72 | - let run_program_and_log_output() accept -1 (only log if _no error_)
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| 73 |
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| 74 | 01/02/2003
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| 75 | - in eval_call_to_make_ISO(), append output to MONDO_LOGFILE
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| 76 | instead of a temporary stderr text file
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| 77 |
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| 78 | 12/10
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| 79 | - patch by Heiko Schlittermann to handle % chars in issue.net
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| 80 |
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| 81 | 11/18
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| 82 | - if mkisofs in eval_call_to_make_ISO() returns an error then return it,
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| 83 | whether ISO was created or not
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| 84 |
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| 85 | 10/30
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| 86 | - if mkisofs in eval_call_to_make_ISO() returns an error then find out if
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| 87 | the output (ISO) file has been created; if it has then return 0 anyway
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| 88 |
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| 89 | 08/01 - 09/30
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| 90 | - run_program_and_log_output() now takes boolean operator to specify
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| 91 | whether it will log its activities in the event of _success_
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| 92 | - system() now includes 2>/dev/null
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| 93 | - enlarged some tmp[]'s
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| 94 | - added run_program_and_log_to_screen() and run_program_and_log_output()
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| 95 |
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| 96 | 07/24
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| 97 | - created
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| 98 | */
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| 99 |
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| 100 |
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| 101 | #include "my-stuff.h"
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| 102 | #include "mondostructures.h"
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| 103 | #include "libmondo-fork.h"
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| 104 | #include "libmondo-string-EXT.h"
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| 105 | #include "libmondo-gui-EXT.h"
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| 106 | #include "libmondo-files-EXT.h"
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| 107 | #include "libmondo-tools-EXT.h"
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| 108 | #include "lib-common-externs.h"
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| 109 |
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| 110 | /*@unused@*/
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| 111 | //static char cvsid[] = "$Id: libmondo-fork.c 30 2005-09-28 23:32:28Z bcornec $";
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| 112 |
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| 113 | extern char *g_tmpfs_mountpt;
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| 114 | extern t_bkptype g_backup_media_type;
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| 115 | extern bool g_text_mode;
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| 116 | pid_t g_buffer_pid=0;
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| 117 |
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| 118 |
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| 119 | /**
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| 120 | * Call a program and retrieve its last line of output.
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| 121 | * @param call The program to run.
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| 122 | * @return The last line of its output.
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| 123 | * @note The returned value points to static storage that will be overwritten with each call.
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| 124 | */
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| 125 | char *
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| 126 | call_program_and_get_last_line_of_output (char *call)
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| 127 | {
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| 128 | /*@ buffers ******************************************************/
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| 129 | static char result[512];
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| 130 | char *tmp;
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| 131 |
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| 132 | /*@ pointers *****************************************************/
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| 133 | FILE *fin;
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| 134 |
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| 135 | /*@ initialize data **********************************************/
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| 136 | malloc_string(tmp);
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| 137 | result[0] = '\0';
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| 138 | tmp[0] = '\0';
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| 139 |
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| 140 | /*@*********************************************************************/
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| 141 |
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| 142 | assert_string_is_neither_NULL_nor_zerolength(call);
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| 143 | if ((fin = popen (call, "r")))
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| 144 | {
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| 145 | for (fgets (tmp, MAX_STR_LEN, fin); !feof (fin);
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| 146 | fgets (tmp, MAX_STR_LEN, fin))
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| 147 | {
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| 148 | if (strlen (tmp) > 1)
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| 149 | {
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| 150 | strcpy (result, tmp);
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| 151 | }
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| 152 | }
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| 153 | paranoid_pclose (fin);
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| 154 | }
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| 155 | else
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| 156 | {
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| 157 | log_OS_error("Unable to popen call");
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| 158 | }
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| 159 | strip_spaces (result);
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| 160 | return (result);
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| 161 | }
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| 162 |
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| 163 |
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| 164 |
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| 165 |
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| 166 |
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| 167 |
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| 168 | #define MONDO_POPMSG "Your PC will not retract the CD tray automatically. Please call mondoarchive with the -m (manual CD tray) flag."
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| 169 |
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| 170 | /**
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| 171 | * Call mkisofs to create an ISO image.
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| 172 | * @param bkpinfo The backup information structure. Fields used:
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| 173 | * - @c bkpinfo->manual_cd_tray
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| 174 | * - @c bkpinfo->backup_media_type
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| 175 | * - @c bkpinfo->please_dont_eject_when_restoring
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| 176 | * @param basic_call The call to mkisofs. May contain tokens that will be resolved to actual data. The tokens are:
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| 177 | * - @c _ISO_ will become the ISO file (@p isofile)
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| 178 | * - @c _CD#_ becomes the CD number (@p cd_no)
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| 179 | * - @c _ERR_ becomes the logfile (@p g_logfile)
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| 180 | * @param isofile Replaces @c _ISO_ in @p basic_call. Should probably be the ISO image to create (-o parameter to mkisofs).
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| 181 | * @param cd_no Replaces @c _CD#_ in @p basic_call. Should probably be the CD number.
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| 182 | * @param logstub Unused.
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| 183 | * @param what_i_am_doing The action taking place (e.g. "Making ISO #1"). Used as the title of the progress dialog.
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| 184 | * @return Exit code of @c mkisofs (0 is success, anything else indicates failure).
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| 185 | * @bug @p logstub is unused.
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| 186 | */
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| 187 | int
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| 188 | eval_call_to_make_ISO (struct s_bkpinfo *bkpinfo,
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| 189 | char *basic_call, char *isofile,
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| 190 | int cd_no, char *logstub, char *what_i_am_doing)
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| 191 | {
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| 192 |
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| 193 | /*@ int's ****/
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| 194 | int retval = 0;
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| 195 |
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| 196 |
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| 197 | /*@ buffers ****/
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| 198 | char *midway_call, *ultimate_call, *tmp, *command, *incoming, *old_stderr, *cd_number_str;
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| 199 | char *p;
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| 200 |
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| 201 | /*@*********** End Variables ***************************************/
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| 202 |
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| 203 | log_msg(3, "Starting");
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| 204 | assert(bkpinfo!=NULL);
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| 205 | assert_string_is_neither_NULL_nor_zerolength(basic_call);
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| 206 | assert_string_is_neither_NULL_nor_zerolength(isofile);
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| 207 | assert_string_is_neither_NULL_nor_zerolength(logstub);
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| 208 | if (!(midway_call = malloc(1200))) { fatal_error("Cannot malloc midway_call"); }
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| 209 | if (!(ultimate_call = malloc(1200))) { fatal_error("Cannot malloc ultimate_call"); }
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| 210 | if (!(tmp = malloc(1200))) { fatal_error("Cannot malloc tmp"); }
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| 211 | if (!(command = malloc(1200))) { fatal_error("Cannot malloc command"); }
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| 212 | malloc_string(incoming);
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| 213 | malloc_string(old_stderr);
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| 214 | malloc_string(cd_number_str);
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| 215 |
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| 216 | incoming[0]='\0';
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| 217 | old_stderr[0] = '\0';
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| 218 |
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| 219 | sprintf (cd_number_str, "%d", cd_no);
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| 220 | resolve_naff_tokens (midway_call, basic_call, isofile, "_ISO_");
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| 221 | resolve_naff_tokens (tmp, midway_call, cd_number_str, "_CD#_");
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| 222 | resolve_naff_tokens (ultimate_call, tmp, MONDO_LOGFILE, "_ERR_");
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| 223 | log_msg (4, "basic call = '%s'", basic_call);
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| 224 | log_msg (4, "midway_call = '%s'", midway_call);
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| 225 | log_msg (4, "tmp = '%s'", tmp);
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| 226 | log_msg (4, "ultimate call = '%s'", ultimate_call);
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| 227 | sprintf( command, "%s >> %s", ultimate_call, MONDO_LOGFILE );
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| 228 |
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| 229 | log_to_screen("Please be patient. Do not be alarmed by on-screen inactivity.");
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| 230 | log_msg(4, "Calling open_evalcall_form() with what_i_am_doing='%s'", what_i_am_doing);
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| 231 | strcpy (tmp, command);
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| 232 | if (bkpinfo->manual_cd_tray)
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| 233 | {
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| 234 | p = strstr (tmp, "2>>");
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| 235 | if (p)
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| 236 | {
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| 237 | sprintf (p, " ");
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| 238 | while(*p==' ') { p++; }
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| 239 | for (; *p != ' '; p++)
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| 240 | {
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| 241 | *p = ' ';
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| 242 | }
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| 243 | }
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| 244 | strcpy(command, tmp);
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| 245 | #ifndef _XWIN
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| 246 | if (!g_text_mode) { newtSuspend(); }
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| 247 | #endif
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| 248 | log_msg (1, "command = '%s'", command);
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| 249 | retval += system (command);
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| 250 | if (!g_text_mode) { newtResume(); }
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| 251 | if (retval)
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| 252 | {
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| 253 | log_msg (2, "Basic call '%s' returned an error.", basic_call);
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| 254 | popup_and_OK ("Press ENTER to continue.");
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| 255 | popup_and_OK("mkisofs and/or cdrecord returned an error. CD was not created");
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| 256 | }
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| 257 | }
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| 258 | /* if text mode then do the above & RETURN; if not text mode, do this... */
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| 259 | else
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| 260 | {
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| 261 | log_msg (3, "command = '%s'", command);
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| 262 | // yes_this_is_a_goto:
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| 263 | retval = run_external_binary_with_percentage_indicator_NEW(what_i_am_doing, command);
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| 264 | }
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| 265 |
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| 266 | paranoid_free(midway_call);
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| 267 | paranoid_free(ultimate_call);
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| 268 | paranoid_free(tmp);
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| 269 | paranoid_free(command);
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| 270 | paranoid_free(incoming);
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| 271 | paranoid_free(old_stderr);
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| 272 | paranoid_free(cd_number_str);
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| 273 | /*
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| 274 | if (bkpinfo->backup_media_type == dvd && !bkpinfo->please_dont_eject_when_restoring)
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| 275 | {
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| 276 | log_msg(3, "Ejecting DVD device");
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| 277 | eject_device(bkpinfo->media_device);
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| 278 | }
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| 279 | */
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| 280 | return (retval);
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| 281 | }
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| 282 |
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| 283 |
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| 284 |
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| 285 |
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| 286 | /**
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| 287 | * Run a program and log its output (stdout and stderr) to the logfile.
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| 288 | * @param program The program to run. Passed to the shell, so you can use pipes etc.
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| 289 | * @param debug_level If @p g_loglevel is higher than this, do not log the output.
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| 290 | * @return The exit code of @p program (depends on the command, but 0 almost always indicates success).
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| 291 | */
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| 292 | int
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| 293 | run_program_and_log_output (char *program, int debug_level)
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| 294 | {
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| 295 | /*@ buffer *******************************************************/
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| 296 | char callstr[MAX_STR_LEN*2];
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| 297 | char incoming[MAX_STR_LEN*2];
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| 298 | char tmp[MAX_STR_LEN*2];
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| 299 | char initial_label[MAX_STR_LEN*2];
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| 300 |
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| 301 | /*@ int **********************************************************/
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| 302 | int res;
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| 303 | int i;
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| 304 | int len;
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| 305 | bool log_if_failure=FALSE;
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| 306 | bool log_if_success=FALSE;
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| 307 |
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| 308 | /*@ pointers ****************************************************/
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| 309 | FILE *fin;
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| 310 | char *p;
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| 311 |
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| 312 | /*@ end vars ****************************************************/
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| 313 |
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| 314 | assert(program!=NULL);
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| 315 | if (!program[0])
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| 316 | {
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| 317 | log_msg(2, "Warning - asked to run zerolength program");
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| 318 | return(1);
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| 319 | }
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| 320 | // if (debug_level == TRUE) { debug_level=5; }
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| 321 |
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| 322 | // assert_string_is_neither_NULL_nor_zerolength(program);
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| 323 |
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| 324 | if (debug_level <= g_loglevel) { log_if_success = TRUE; log_if_failure = TRUE; }
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| 325 | sprintf (callstr, "%s > /tmp/mondo-run-prog-thing.tmp 2> /tmp/mondo-run-prog-thing.err",
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| 326 | program);
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| 327 | while ((p = strchr (callstr, '\r')))
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| 328 | {
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| 329 | *p = ' ';
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| 330 | }
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| 331 | while ((p = strchr (callstr, '\n')))
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| 332 | {
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| 333 | *p = ' ';
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| 334 | } /* single '=' is intentional */
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| 335 |
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| 336 |
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| 337 | len = (int) strlen (program);
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| 338 | for (i = 0; i < 35 - len / 2; i++)
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| 339 | {
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| 340 | tmp[i] = '-';
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| 341 | }
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| 342 | tmp[i] = '\0';
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| 343 | strcat (tmp, " ");
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| 344 | strcat (tmp, program);
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| 345 | strcat (tmp, " ");
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| 346 | for (i = 0; i < 35 - len / 2; i++)
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| 347 | {
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| 348 | strcat (tmp, "-");
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| 349 | }
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| 350 | strcpy(initial_label, tmp);
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| 351 | res = system (callstr);
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| 352 | if (((res == 0) && log_if_success) || ((res != 0) && log_if_failure)) {
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| 353 | log_msg (0, "running: %s", callstr);
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| 354 | log_msg (0, "--------------------------------start of output-----------------------------");
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| 355 | }
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| 356 | if (log_if_failure && system ("cat /tmp/mondo-run-prog-thing.err >> /tmp/mondo-run-prog-thing.tmp 2> /dev/null"))
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| 357 | {
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| 358 | log_OS_error("Command failed");
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| 359 | }
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| 360 | unlink ("/tmp/mondo-run-prog-thing.err");
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| 361 | fin = fopen ("/tmp/mondo-run-prog-thing.tmp", "r");
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| 362 | if (fin)
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| 363 | {
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| 364 | for (fgets (incoming, MAX_STR_LEN, fin); !feof (fin);
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| 365 | fgets (incoming, MAX_STR_LEN, fin))
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| 366 | {
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| 367 | /* patch by Heiko Schlittermann */
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| 368 | p = incoming;
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| 369 | while (p && *p)
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| 370 | {
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| 371 | if ((p = strchr(p, '%')))
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| 372 | {
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| 373 | memmove(p, p+1, strlen(p) +1);
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| 374 | p += 2;
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| 375 | }
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| 376 | }
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| 377 | /* end of patch */
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| 378 | strip_spaces (incoming);
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| 379 | if ((res==0 && log_if_success) || (res!=0 && log_if_failure))
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| 380 | { log_msg (0, incoming); }
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| 381 | }
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| 382 | paranoid_fclose (fin);
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| 383 | }
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| 384 | unlink("/tmp/mondo-run-prog-thing.tmp");
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| 385 | if ((res==0 && log_if_success) || (res!=0 && log_if_failure))
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| 386 | {
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| 387 | log_msg (0, "--------------------------------end of output------------------------------");
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| 388 | if (res) { log_msg (0,"...ran with res=%d", res); }
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| 389 | else { log_msg(0, "...ran just fine. :-)"); }
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| 390 | }
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| 391 | // else
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| 392 | // { log_msg (0, "-------------------------------ran w/ res=%d------------------------------", res); }
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| 393 | return (res);
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| 394 | }
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| 395 |
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| 396 |
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| 397 |
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| 398 | /**
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| 399 | * Run a program and log its output to the screen.
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| 400 | * @param basic_call The program to run.
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| 401 | * @param what_i_am_doing The title of the evalcall form.
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| 402 | * @return The return value of the command (varies, but 0 almost always means success).
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| 403 | * @see run_program_and_log_output
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| 404 | * @see log_to_screen
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| 405 | */
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| 406 | int
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| 407 | run_program_and_log_to_screen (char *basic_call, char *what_i_am_doing)
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| 408 | {
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| 409 | /*@ int *********************************************************/
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| 410 | int retval = 0;
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| 411 | int res = 0;
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| 412 | int i;
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| 413 |
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| 414 | /*@ pointers *****************************************************/
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| 415 | FILE *fin;
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| 416 |
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| 417 | /*@ buffers *****************************************************/
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| 418 | char tmp[MAX_STR_LEN*2];
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| 419 | char command[MAX_STR_LEN*2];
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| 420 | char lockfile[MAX_STR_LEN];
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| 421 |
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| 422 | /*@ end vars ****************************************************/
|
---|
| 423 |
|
---|
| 424 | assert_string_is_neither_NULL_nor_zerolength(basic_call);
|
---|
| 425 |
|
---|
| 426 | sprintf (lockfile, "/tmp/mojo-jojo.blah.XXXXXX");
|
---|
| 427 | mkstemp (lockfile);
|
---|
| 428 | sprintf (command,
|
---|
| 429 | "echo hi > %s ; %s >> %s 2>> %s; res=$?; sleep 1; rm -f %s; exit $res",
|
---|
| 430 | lockfile, basic_call, MONDO_LOGFILE, MONDO_LOGFILE, lockfile);
|
---|
| 431 | open_evalcall_form (what_i_am_doing);
|
---|
| 432 | sprintf (tmp, "Executing %s", basic_call);
|
---|
| 433 | log_msg (2, tmp);
|
---|
| 434 | if (!(fin = popen (command, "r")))
|
---|
| 435 | {
|
---|
| 436 | log_OS_error("Unable to popen-in command");
|
---|
| 437 | sprintf (tmp, "Failed utterly to call '%s'", command);
|
---|
| 438 | log_to_screen (tmp);
|
---|
| 439 | return (1);
|
---|
| 440 | }
|
---|
| 441 | if (!does_file_exist(lockfile))
|
---|
| 442 | {
|
---|
| 443 | log_to_screen("Waiting for external binary to start");
|
---|
| 444 | for (i = 0; i < 60 && !does_file_exist (lockfile); sleep (1), i++)
|
---|
| 445 | {
|
---|
| 446 | log_msg(3, "Waiting for lockfile %s to exist", lockfile);
|
---|
| 447 | }
|
---|
| 448 | }
|
---|
| 449 | #ifdef _XWIN
|
---|
| 450 | /* This only can update when newline goes into the file,
|
---|
| 451 | but it's *much* prettier/faster on Qt. */
|
---|
| 452 | while (does_file_exist (lockfile)) {
|
---|
| 453 | while (!feof (fin)) {
|
---|
| 454 | if (!fgets (tmp, 512, fin)) break;
|
---|
| 455 | log_to_screen (tmp);
|
---|
| 456 | }
|
---|
| 457 | usleep (500000);
|
---|
| 458 | }
|
---|
| 459 | #else
|
---|
| 460 | /* This works on Newt, and it gives quicker updates. */
|
---|
| 461 | for (; does_file_exist (lockfile); sleep (1))
|
---|
| 462 | {
|
---|
| 463 | log_file_end_to_screen (MONDO_LOGFILE, "");
|
---|
| 464 | update_evalcall_form (1);
|
---|
| 465 | }
|
---|
| 466 | #endif
|
---|
| 467 | paranoid_pclose (fin);
|
---|
| 468 | retval += res;
|
---|
| 469 | close_evalcall_form ();
|
---|
| 470 | unlink (lockfile);
|
---|
| 471 | return (retval);
|
---|
| 472 | }
|
---|
| 473 |
|
---|
| 474 |
|
---|
| 475 |
|
---|
| 476 |
|
---|
| 477 |
|
---|
| 478 | /**
|
---|
| 479 | * Thread callback to run a command (partimage) in the background.
|
---|
| 480 | * @param xfb A transfer block of @c char, containing:
|
---|
| 481 | * - xfb:[0] A marker, should be set to 2. Decremented to 1 while the command is running and 0 when it's finished.
|
---|
| 482 | * - xfb:[1] The command's return value, if xfb:[0] is 0.
|
---|
| 483 | * - xfb+2: A <tt>NULL</tt>-terminated string containing the command to be run.
|
---|
| 484 | * @return NULL to pthread_join.
|
---|
| 485 | */
|
---|
| 486 | void *call_partimage_in_bkgd(void*xfb)
|
---|
| 487 | {
|
---|
| 488 | char *transfer_block;
|
---|
| 489 | int retval=0;
|
---|
| 490 |
|
---|
| 491 | g_buffer_pid = getpid();
|
---|
| 492 | unlink("/tmp/null");
|
---|
| 493 | log_msg(1, "starting");
|
---|
| 494 | transfer_block = (char*)xfb;
|
---|
| 495 | transfer_block[0] --; // should now be 1
|
---|
| 496 | retval = system(transfer_block+2);
|
---|
| 497 | if (retval) { log_OS_error("partimage returned an error"); }
|
---|
| 498 | transfer_block[1] = retval;
|
---|
| 499 | transfer_block[0] --; // should now be 0
|
---|
| 500 | g_buffer_pid = 0;
|
---|
| 501 | log_msg(1, "returning");
|
---|
| 502 | pthread_exit(NULL);
|
---|
| 503 | }
|
---|
| 504 |
|
---|
| 505 |
|
---|
| 506 | /**
|
---|
| 507 | * File to touch if we want partimage to wait for us.
|
---|
| 508 | */
|
---|
| 509 | #define PAUSE_PARTIMAGE_FNAME "/tmp/PAUSE-PARTIMAGE-FOR-MONDO"
|
---|
| 510 |
|
---|
| 511 | /**
|
---|
| 512 | * Apparently unused. @bug This has a purpose, but what?
|
---|
| 513 | */
|
---|
| 514 | #define PIMP_START_SZ "STARTSTARTSTART9ff3kff9a82gv34r7fghbkaBBC2T231hc81h42vws8"
|
---|
| 515 | #define PIMP_END_SZ "ENDENDEND0xBBC10xBBC2T231hc81h42vws89ff3kff9a82gv34r7fghbka"
|
---|
| 516 |
|
---|
| 517 | /**
|
---|
| 518 | * Marker to start the next subvolume for Partimage.
|
---|
| 519 | */
|
---|
| 520 | #define NEXT_SUBVOL_PLEASE "I-grew-up-on-the-crime-side,-the-New-York-Times-side,-where-staying-alive-was-no-jive"
|
---|
| 521 |
|
---|
| 522 | /**
|
---|
| 523 | * Marker to end the partimage file.
|
---|
| 524 | */
|
---|
| 525 | #define NO_MORE_SUBVOLS "On-second-hand,momma-bounced-on-old-man,-and-so-we-moved-to-Shaolin-Land."
|
---|
| 526 |
|
---|
| 527 | int copy_from_src_to_dest(FILE*f_orig, FILE*f_archived, char direction)
|
---|
| 528 | {
|
---|
| 529 | // if dir=='w' then copy from orig to archived
|
---|
| 530 | // if dir=='r' then copy from archived to orig
|
---|
| 531 | char*tmp;
|
---|
| 532 | char*buf;
|
---|
| 533 | long int bytes_to_be_read, bytes_read_in, bytes_written_out=0, bufcap, subsliceno=0;
|
---|
| 534 | int retval=0;
|
---|
| 535 | FILE*fin;
|
---|
| 536 | FILE*fout;
|
---|
| 537 | FILE*ftmp;
|
---|
| 538 |
|
---|
| 539 | log_msg(5, "Opening.");
|
---|
| 540 | malloc_string(tmp);
|
---|
| 541 | tmp[0] = '\0';
|
---|
| 542 | bufcap = 256L*1024L;
|
---|
| 543 | if (!(buf = malloc(bufcap))) { fatal_error("Failed to malloc() buf"); }
|
---|
| 544 |
|
---|
| 545 | if (direction=='w')
|
---|
| 546 | {
|
---|
| 547 | fin = f_orig;
|
---|
| 548 | fout = f_archived;
|
---|
| 549 | sprintf(tmp, "%-64s", PIMP_START_SZ);
|
---|
| 550 | if (fwrite(tmp, 1, 64, fout)!=64) { fatal_error("Can't write the introductory block"); }
|
---|
| 551 | while(1)
|
---|
| 552 | {
|
---|
| 553 | bytes_to_be_read = bytes_read_in = fread(buf, 1, bufcap, fin);
|
---|
| 554 | if (bytes_read_in == 0) { break; }
|
---|
| 555 | sprintf(tmp, "%-64ld", bytes_read_in);
|
---|
| 556 | if (fwrite(tmp, 1, 64, fout)!=64) { fatal_error("Cannot write introductory block"); }
|
---|
| 557 | log_msg(7, "subslice #%ld --- I have read %ld of %ld bytes in from f_orig", subsliceno, bytes_read_in, bytes_to_be_read);
|
---|
| 558 | bytes_written_out += fwrite(buf, 1, bytes_read_in, fout);
|
---|
| 559 | sprintf(tmp, "%-64ld", subsliceno);
|
---|
| 560 | if (fwrite(tmp, 1, 64, fout)!=64) { fatal_error("Cannot write post-thingy block"); }
|
---|
| 561 | log_msg(7, "Subslice #%d written OK", subsliceno);
|
---|
| 562 | subsliceno++;
|
---|
| 563 | }
|
---|
| 564 | sprintf(tmp, "%-64ld", 0L);
|
---|
| 565 | if (fwrite(tmp, 1, 64L, fout)!=64L) { fatal_error("Cannot write final introductory block"); }
|
---|
| 566 | }
|
---|
| 567 | else
|
---|
| 568 | {
|
---|
| 569 | fin = f_archived;
|
---|
| 570 | fout = f_orig;
|
---|
| 571 | if (fread(tmp, 1, 64L, fin)!=64L) { fatal_error("Cannot read the introductory block"); }
|
---|
| 572 | log_msg(5, "tmp is %s", tmp);
|
---|
| 573 | if (!strstr(tmp, PIMP_START_SZ)){ fatal_error("Can't find intro blk"); }
|
---|
| 574 | if (fread(tmp, 1, 64L, fin)!=64L) { fatal_error("Cannot read introductory blk"); }
|
---|
| 575 | bytes_to_be_read = atol(tmp);
|
---|
| 576 | while(bytes_to_be_read > 0)
|
---|
| 577 | {
|
---|
| 578 | log_msg(7, "subslice#%ld, bytes=%ld", subsliceno, bytes_to_be_read);
|
---|
| 579 | bytes_read_in = fread(buf, 1, bytes_to_be_read, fin);
|
---|
| 580 | if (bytes_read_in != bytes_to_be_read) { fatal_error("Danger, WIll Robinson. Failed to read whole subvol from archives."); }
|
---|
| 581 | bytes_written_out += fwrite(buf, 1, bytes_read_in, fout);
|
---|
| 582 | if (fread(tmp, 1, 64, fin)!=64) { fatal_error("Cannot read post-thingy block"); }
|
---|
| 583 | if (atol(tmp) != subsliceno) { log_msg(1, "Wanted subslice %ld but got %ld ('%s')", subsliceno, atol(tmp), tmp); }
|
---|
| 584 | log_msg(7, "Subslice #%ld read OK", subsliceno);
|
---|
| 585 | subsliceno++;
|
---|
| 586 | if (fread(tmp, 1, 64, fin)!=64) { fatal_error("Cannot read introductory block"); }
|
---|
| 587 | bytes_to_be_read = atol(tmp);
|
---|
| 588 | }
|
---|
| 589 | }
|
---|
| 590 |
|
---|
| 591 | // log_msg(4, "Written %ld of %ld bytes", bytes_written_out, bytes_read_in);
|
---|
| 592 |
|
---|
| 593 | if (direction=='w')
|
---|
| 594 | {
|
---|
| 595 | sprintf(tmp, "%-64s", PIMP_END_SZ);
|
---|
| 596 | if (fwrite(tmp, 1, 64, fout)!=64) { fatal_error("Can't write the final block"); }
|
---|
| 597 | }
|
---|
| 598 | else
|
---|
| 599 | {
|
---|
| 600 | log_msg(1, "tmpA is %s", tmp);
|
---|
| 601 | if (!strstr(tmp, PIMP_END_SZ))
|
---|
| 602 | {
|
---|
| 603 | if (fread(tmp, 1, 64, fin)!=64) { fatal_error("Can't read the final block"); }
|
---|
| 604 | log_msg(5, "tmpB is %s", tmp);
|
---|
| 605 | if (!strstr(tmp, PIMP_END_SZ))
|
---|
| 606 | {
|
---|
| 607 | ftmp = fopen("/tmp/out.leftover", "w");
|
---|
| 608 | bytes_read_in = fread(tmp, 1, 64, fin);
|
---|
| 609 | log_msg(1, "bytes_read_in = %ld", bytes_read_in);
|
---|
| 610 | // if (bytes_read_in!=128+64) { fatal_error("Can't read the terminating block"); }
|
---|
| 611 | fwrite(tmp, 1, bytes_read_in, ftmp);
|
---|
| 612 | sprintf(tmp, "I am here - %ld", ftell(fin));
|
---|
| 613 | // log_msg(0, tmp);
|
---|
| 614 | fread(tmp, 1, 512, fin);
|
---|
| 615 | log_msg(0, "tmp = '%s'", tmp);
|
---|
| 616 | fwrite(tmp, 1, 512, ftmp);
|
---|
| 617 | fclose(ftmp);
|
---|
| 618 | fatal_error("Missing terminating block");
|
---|
| 619 | }
|
---|
| 620 | }
|
---|
| 621 | }
|
---|
| 622 |
|
---|
| 623 | paranoid_free(buf);
|
---|
| 624 | paranoid_free(tmp);
|
---|
| 625 | log_msg(3, "Successfully copied %ld bytes", bytes_written_out);
|
---|
| 626 | return(retval);
|
---|
| 627 | }
|
---|
| 628 |
|
---|
| 629 |
|
---|
| 630 | /**
|
---|
| 631 | * Call partimage from @p input_device to @p output_fname.
|
---|
| 632 | * @param input_device The device to read.
|
---|
| 633 | * @param output_fname The file to write.
|
---|
| 634 | * @return 0 for success, nonzero for failure.
|
---|
| 635 | */
|
---|
| 636 | int dynamically_create_pipes_and_copy_from_them_to_output_file(char*input_device, char*output_fname)
|
---|
| 637 | {
|
---|
| 638 | char *curr_fifo;
|
---|
| 639 | char *prev_fifo;
|
---|
| 640 | char *next_fifo;
|
---|
| 641 | char*command;
|
---|
| 642 | char *sz_call_to_partimage;
|
---|
| 643 | int fifo_number=0;
|
---|
| 644 | struct stat buf;
|
---|
| 645 | pthread_t partimage_thread;
|
---|
| 646 | int res=0;
|
---|
| 647 | char *tmpstub;
|
---|
| 648 | FILE*fout;
|
---|
| 649 | FILE*fin;
|
---|
| 650 | char *tmp;
|
---|
| 651 |
|
---|
| 652 | malloc_string(tmpstub);
|
---|
| 653 | malloc_string(curr_fifo);
|
---|
| 654 | malloc_string(prev_fifo);
|
---|
| 655 | malloc_string(next_fifo);
|
---|
| 656 | malloc_string(command);
|
---|
| 657 | malloc_string(sz_call_to_partimage);
|
---|
| 658 | malloc_string(tmp);
|
---|
| 659 |
|
---|
| 660 | log_msg(1, "g_tmpfs_mountpt = %s", g_tmpfs_mountpt);
|
---|
| 661 | if (g_tmpfs_mountpt && g_tmpfs_mountpt[0] && does_file_exist(g_tmpfs_mountpt))
|
---|
| 662 | { strcpy(tmpstub, g_tmpfs_mountpt); }
|
---|
| 663 | else
|
---|
| 664 | { strcpy(tmpstub, "/tmp"); }
|
---|
| 665 | paranoid_system("rm -f /tmp/*PARTIMAGE*");
|
---|
| 666 | sprintf(command, "rm -Rf %s/pih-fifo-*", tmpstub);
|
---|
| 667 | paranoid_system(command);
|
---|
| 668 | sprintf(tmpstub+strlen(tmpstub), "/pih-fifo-%ld", (long int)random());
|
---|
| 669 | mkfifo(tmpstub, S_IRWXU|S_IRWXG); // never used, though...
|
---|
| 670 | sprintf(curr_fifo, "%s.%03d", tmpstub, fifo_number);
|
---|
| 671 | sprintf(next_fifo, "%s.%03d", tmpstub, fifo_number+1);
|
---|
| 672 | mkfifo(curr_fifo, S_IRWXU|S_IRWXG);
|
---|
| 673 | mkfifo(next_fifo, S_IRWXU|S_IRWXG); // make sure _next_ fifo already exists before we call partimage
|
---|
| 674 | sz_call_to_partimage[0]=2;
|
---|
| 675 | sz_call_to_partimage[1]=0;
|
---|
| 676 | sprintf(sz_call_to_partimage+2, "partimagehack " PARTIMAGE_PARAMS " save %s %s > /tmp/stdout 2> /tmp/stderr", input_device, tmpstub);
|
---|
| 677 | log_msg(5, "curr_fifo = %s", curr_fifo);
|
---|
| 678 | log_msg(5, "next_fifo = %s", next_fifo);
|
---|
| 679 | log_msg(5, "sz_call_to_partimage call is '%s'", sz_call_to_partimage+2);
|
---|
| 680 | if (!lstat(output_fname, &buf) && S_ISREG(buf.st_mode))
|
---|
| 681 | { log_msg(5, "Deleting %s", output_fname); unlink(output_fname); }
|
---|
| 682 | if (!(fout = fopen(output_fname, "w"))) { fatal_error("Unable to openout to output_fname"); }
|
---|
| 683 | res = pthread_create(&partimage_thread, NULL, call_partimage_in_bkgd, (void*)sz_call_to_partimage);
|
---|
| 684 | if (res) { fatal_error("Failed to create thread to call partimage"); }
|
---|
| 685 | log_msg(1, "Running fore/back at same time");
|
---|
| 686 | log_to_screen("Working with partimagehack...");
|
---|
| 687 | while(sz_call_to_partimage[0]>0)
|
---|
| 688 | {
|
---|
| 689 | sprintf(tmp, "%s\n", NEXT_SUBVOL_PLEASE);
|
---|
| 690 | if (fwrite(tmp, 1, 128, fout)!=128) { fatal_error("Cannot write interim block"); }
|
---|
| 691 | log_msg(5, "fifo_number=%d", fifo_number);
|
---|
| 692 | log_msg(4, "Cat'ting %s", curr_fifo);
|
---|
| 693 | if (!(fin = fopen(curr_fifo, "r"))) { fatal_error("Unable to openin from fifo"); }
|
---|
| 694 | // if (!sz_call_to_partimage[0]) { break; }
|
---|
| 695 | log_msg(5, "Deleting %s", prev_fifo);
|
---|
| 696 | unlink(prev_fifo); // just in case
|
---|
| 697 | copy_from_src_to_dest(fin, fout, 'w');
|
---|
| 698 | paranoid_fclose(fin);
|
---|
| 699 | fifo_number ++;
|
---|
| 700 | strcpy(prev_fifo, curr_fifo);
|
---|
| 701 | strcpy(curr_fifo, next_fifo);
|
---|
| 702 | log_msg(5, "Creating %s", next_fifo);
|
---|
| 703 | sprintf(next_fifo, "%s.%03d", tmpstub, fifo_number+1);
|
---|
| 704 | mkfifo(next_fifo, S_IRWXU|S_IRWXG); // make sure _next_ fifo exists before we cat this one
|
---|
| 705 | system("sync");
|
---|
| 706 | sleep(5);
|
---|
| 707 | }
|
---|
| 708 | sprintf(tmp, "%s\n", NO_MORE_SUBVOLS);
|
---|
| 709 | if (fwrite(tmp, 1, 128, fout)!=128) { fatal_error("Cannot write interim block"); }
|
---|
| 710 | if (fwrite(tmp, 1, 128, fout)!=128) { fatal_error("Cannot write interim block"); }
|
---|
| 711 | if (fwrite(tmp, 1, 128, fout)!=128) { fatal_error("Cannot write interim block"); }
|
---|
| 712 | if (fwrite(tmp, 1, 128, fout)!=128) { fatal_error("Cannot write interim block"); }
|
---|
| 713 | paranoid_fclose(fout);
|
---|
| 714 | log_to_screen("Cleaning up after partimagehack...");
|
---|
| 715 | log_msg(3, "Final fifo_number=%d", fifo_number);
|
---|
| 716 | paranoid_system("sync");
|
---|
| 717 | unlink(next_fifo);
|
---|
| 718 | unlink(curr_fifo);
|
---|
| 719 | unlink(prev_fifo);
|
---|
| 720 | log_to_screen("Finished cleaning up.");
|
---|
| 721 |
|
---|
| 722 | // if (!lstat(sz_wait_for_this_file, &statbuf))
|
---|
| 723 | // { log_msg(3, "WARNING! %s was not processed.", sz_wait_for_this_file); }
|
---|
| 724 | log_msg(2, "Waiting for pthread_join() to join.");
|
---|
| 725 | pthread_join(partimage_thread, NULL);
|
---|
| 726 | res = sz_call_to_partimage[1];
|
---|
| 727 | log_msg(2, "pthread_join() joined OK.");
|
---|
| 728 | log_msg(1, "Partimagehack(save) returned %d", res);
|
---|
| 729 | unlink(tmpstub);
|
---|
| 730 | paranoid_free(curr_fifo);
|
---|
| 731 | paranoid_free(prev_fifo);
|
---|
| 732 | paranoid_free(next_fifo);
|
---|
| 733 | paranoid_free(tmpstub);
|
---|
| 734 | paranoid_free(tmp);
|
---|
| 735 | paranoid_free(command);
|
---|
| 736 | return(res);
|
---|
| 737 | }
|
---|
| 738 |
|
---|
| 739 |
|
---|
| 740 | /**
|
---|
| 741 | * Feed @p input_device through partimage to @p output_fname.
|
---|
| 742 | * @param input_device The device to image.
|
---|
| 743 | * @param output_fname The file to write.
|
---|
| 744 | * @return 0 for success, nonzero for failure.
|
---|
| 745 | */
|
---|
| 746 | int feed_into_partimage(char*input_device, char*output_fname)
|
---|
| 747 | {
|
---|
| 748 | // BACKUP
|
---|
| 749 | int res;
|
---|
| 750 |
|
---|
| 751 | if (!does_file_exist(input_device)) { fatal_error ("input device does not exist"); }
|
---|
| 752 | if ( !find_home_of_exe("partimagehack")) { fatal_error( "partimagehack not found" ); }
|
---|
| 753 | res = dynamically_create_pipes_and_copy_from_them_to_output_file(input_device, output_fname);
|
---|
| 754 | return(res);
|
---|
| 755 | }
|
---|
| 756 |
|
---|
| 757 |
|
---|
| 758 |
|
---|
| 759 |
|
---|
| 760 |
|
---|
| 761 | int
|
---|
| 762 | run_external_binary_with_percentage_indicator_OLD (char *tt, char *cmd)
|
---|
| 763 | {
|
---|
| 764 |
|
---|
| 765 | /*@ int ****************************************************************/
|
---|
| 766 | int res = 0;
|
---|
| 767 | int percentage = 0;
|
---|
| 768 | int maxpc = 0;
|
---|
| 769 | int pcno = 0;
|
---|
| 770 | int last_pcno = 0;
|
---|
| 771 |
|
---|
| 772 | /*@ buffers ************************************************************/
|
---|
| 773 | char *command;
|
---|
| 774 | char *tempfile;
|
---|
| 775 | char *title;
|
---|
| 776 | /*@ pointers ***********************************************************/
|
---|
| 777 | FILE *pin;
|
---|
| 778 |
|
---|
| 779 | malloc_string(title);
|
---|
| 780 | malloc_string(command);
|
---|
| 781 | malloc_string(tempfile);
|
---|
| 782 | assert_string_is_neither_NULL_nor_zerolength(cmd);
|
---|
| 783 | assert_string_is_neither_NULL_nor_zerolength(title);
|
---|
| 784 |
|
---|
| 785 | strcpy (title, tt);
|
---|
| 786 | strcpy (tempfile,
|
---|
| 787 | call_program_and_get_last_line_of_output
|
---|
| 788 | ("mktemp -q /tmp/mondo.XXXXXXXX"));
|
---|
| 789 | sprintf (command, "%s >> %s 2>> %s; rm -f %s", cmd, tempfile, tempfile,
|
---|
| 790 | tempfile);
|
---|
| 791 | log_msg (3, command);
|
---|
| 792 | open_evalcall_form (title);
|
---|
| 793 | if (!(pin = popen (command, "r")))
|
---|
| 794 | {
|
---|
| 795 | log_OS_error ("fmt err");
|
---|
| 796 | return (1);
|
---|
| 797 | }
|
---|
| 798 | maxpc = 100;
|
---|
| 799 | // OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD
|
---|
| 800 | for (sleep (1); does_file_exist (tempfile); sleep (1))
|
---|
| 801 | {
|
---|
| 802 | pcno = grab_percentage_from_last_line_of_file (MONDO_LOGFILE);
|
---|
| 803 | if (pcno < 0 || pcno > 100)
|
---|
| 804 | {
|
---|
| 805 | log_msg (5, "Weird pc#");
|
---|
| 806 | continue;
|
---|
| 807 | }
|
---|
| 808 | percentage = pcno * 100 / maxpc;
|
---|
| 809 | if (pcno <= 5 && last_pcno > 40)
|
---|
| 810 | {
|
---|
| 811 | close_evalcall_form ();
|
---|
| 812 | strcpy (title, "Verifying...");
|
---|
| 813 | open_evalcall_form (title);
|
---|
| 814 | }
|
---|
| 815 | last_pcno = pcno;
|
---|
| 816 | update_evalcall_form (percentage);
|
---|
| 817 | }
|
---|
| 818 | // OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD OLD
|
---|
| 819 | close_evalcall_form ();
|
---|
| 820 | if (pclose (pin)) { res++; log_OS_error("Unable to pclose"); }
|
---|
| 821 | unlink (tempfile);
|
---|
| 822 | paranoid_free(command);
|
---|
| 823 | paranoid_free(tempfile);
|
---|
| 824 | paranoid_free(title);
|
---|
| 825 | return (res);
|
---|
| 826 | }
|
---|
| 827 |
|
---|
| 828 |
|
---|
| 829 |
|
---|
| 830 |
|
---|
| 831 | void*run_prog_in_bkgd_then_exit(void*info)
|
---|
| 832 | {
|
---|
| 833 | char*sz_command;
|
---|
| 834 | static int res=4444;
|
---|
| 835 |
|
---|
| 836 | res=999;
|
---|
| 837 | sz_command = (char*)info;
|
---|
| 838 | log_msg(4, "sz_command = '%s'", sz_command);
|
---|
| 839 | res = system(sz_command);
|
---|
| 840 | if (res>256 && res!=4444) { res=res / 256; }
|
---|
| 841 | log_msg(4, "child res = %d", res);
|
---|
| 842 | sz_command[0] = '\0';
|
---|
| 843 | pthread_exit((void*)(&res));
|
---|
| 844 | }
|
---|
| 845 |
|
---|
| 846 |
|
---|
| 847 |
|
---|
| 848 |
|
---|
| 849 | int
|
---|
| 850 | run_external_binary_with_percentage_indicator_NEW (char*tt, char*cmd)
|
---|
| 851 | {
|
---|
| 852 |
|
---|
| 853 | /*@ int ****************************************************************/
|
---|
| 854 | int res = 0;
|
---|
| 855 | int percentage = 0;
|
---|
| 856 | int maxpc = 100;
|
---|
| 857 | int pcno = 0;
|
---|
| 858 | int last_pcno = 0;
|
---|
| 859 | int counter=0;
|
---|
| 860 |
|
---|
| 861 | /*@ buffers ************************************************************/
|
---|
| 862 | char *command;
|
---|
| 863 | char *title;
|
---|
| 864 | /*@ pointers ***********************************************************/
|
---|
| 865 | static int chldres=0;
|
---|
| 866 | int *pchild_result;
|
---|
| 867 | pthread_t childthread;
|
---|
| 868 |
|
---|
| 869 | pchild_result = &chldres;
|
---|
| 870 | assert_string_is_neither_NULL_nor_zerolength(cmd);
|
---|
| 871 | assert_string_is_neither_NULL_nor_zerolength(tt);
|
---|
| 872 | *pchild_result = 999;
|
---|
| 873 |
|
---|
| 874 | malloc_string(title);
|
---|
| 875 | malloc_string(command);
|
---|
| 876 | strcpy (title, tt);
|
---|
| 877 | sprintf(command, "%s 2>> %s", cmd, MONDO_LOGFILE);
|
---|
| 878 | log_msg (3, "command = '%s'", command);
|
---|
| 879 | if ((res = pthread_create(&childthread, NULL, run_prog_in_bkgd_then_exit, (void*)command)))
|
---|
| 880 | { fatal_error("Unable to create an archival thread"); }
|
---|
| 881 |
|
---|
| 882 | log_msg(8, "Parent running");
|
---|
| 883 | open_evalcall_form (title);
|
---|
| 884 | for (sleep (1); command[0]!='\0'; sleep (1))
|
---|
| 885 | {
|
---|
| 886 | pcno = grab_percentage_from_last_line_of_file (MONDO_LOGFILE);
|
---|
| 887 | if (pcno <= 0 || pcno > 100)
|
---|
| 888 | {
|
---|
| 889 | log_msg (8, "Weird pc#");
|
---|
| 890 | continue;
|
---|
| 891 | }
|
---|
| 892 | percentage = pcno * 100 / maxpc;
|
---|
| 893 | if (pcno <= 5 && last_pcno >= 40)
|
---|
| 894 | {
|
---|
| 895 | close_evalcall_form ();
|
---|
| 896 | strcpy (title, "Verifying...");
|
---|
| 897 | open_evalcall_form (title);
|
---|
| 898 | }
|
---|
| 899 | if (counter++ >= 5)
|
---|
| 900 | {
|
---|
| 901 | counter=0;
|
---|
| 902 | log_file_end_to_screen (MONDO_LOGFILE, "");
|
---|
| 903 | }
|
---|
| 904 | last_pcno = pcno;
|
---|
| 905 | update_evalcall_form (percentage);
|
---|
| 906 | }
|
---|
| 907 | log_file_end_to_screen (MONDO_LOGFILE, "");
|
---|
| 908 | close_evalcall_form ();
|
---|
| 909 | pthread_join(childthread, (void*)(&pchild_result));
|
---|
| 910 | if (pchild_result) { res = *pchild_result; }
|
---|
| 911 | else { res = 666; }
|
---|
| 912 | log_msg(3, "Parent res = %d", res);
|
---|
| 913 | paranoid_free(command);
|
---|
| 914 | paranoid_free(title);
|
---|
| 915 | return (res);
|
---|
| 916 | }
|
---|
| 917 |
|
---|
| 918 |
|
---|
| 919 |
|
---|
| 920 | #define PIH_LOG "/var/log/partimage-debug.log"
|
---|
| 921 |
|
---|
| 922 |
|
---|
| 923 | /**
|
---|
| 924 | * Feed @p input_fifo through partimage (restore) to @p output_device.
|
---|
| 925 | * @param input_fifo The partimage file to read.
|
---|
| 926 | * @param output_device Where to put the output.
|
---|
| 927 | * @return The return value of partimagehack (0 for success).
|
---|
| 928 | * @bug Probably unnecessary, as the partimage is just a sparse file. We could use @c dd to restore it.
|
---|
| 929 | */
|
---|
| 930 | int feed_outfrom_partimage(char*output_device, char*input_fifo)
|
---|
| 931 | {
|
---|
| 932 | // RESTORE
|
---|
| 933 | char *tmp;
|
---|
| 934 | // char *command;
|
---|
| 935 | char *stuff;
|
---|
| 936 | char *sz_call_to_partimage;
|
---|
| 937 | pthread_t partimage_thread;
|
---|
| 938 | int res;
|
---|
| 939 | char *curr_fifo;
|
---|
| 940 | char *prev_fifo;
|
---|
| 941 | char *oldest_fifo;
|
---|
| 942 | char *next_fifo;
|
---|
| 943 | char *afternxt_fifo;
|
---|
| 944 | int fifo_number=0;
|
---|
| 945 | char *tmpstub;
|
---|
| 946 | FILE *fin;
|
---|
| 947 | FILE *fout;
|
---|
| 948 |
|
---|
| 949 | malloc_string(curr_fifo);
|
---|
| 950 | malloc_string(prev_fifo);
|
---|
| 951 | malloc_string(next_fifo);
|
---|
| 952 | malloc_string(afternxt_fifo);
|
---|
| 953 | malloc_string(oldest_fifo);
|
---|
| 954 | malloc_string(tmp);
|
---|
| 955 | sz_call_to_partimage = malloc(1000);
|
---|
| 956 | malloc_string(stuff);
|
---|
| 957 | malloc_string(tmpstub);
|
---|
| 958 |
|
---|
| 959 | log_msg(1, "output_device=%s", output_device);
|
---|
| 960 | log_msg(1, "input_fifo=%s", input_fifo);
|
---|
| 961 | /* I don't trust g_tmpfs_mountpt
|
---|
| 962 | if (g_tmpfs_mountpt[0])
|
---|
| 963 | {
|
---|
| 964 | strcpy(tmpstub, g_tmpfs_mountpt);
|
---|
| 965 | }
|
---|
| 966 | else
|
---|
| 967 | {
|
---|
| 968 | */
|
---|
| 969 | strcpy(tmpstub, "/tmp");
|
---|
| 970 | // }
|
---|
| 971 | log_msg(1, "tmpstub was %s", tmpstub);
|
---|
| 972 | strcpy(stuff, tmpstub);
|
---|
| 973 | sprintf(tmpstub, "%s/pih-fifo-%ld", stuff, (long int)random());
|
---|
| 974 | log_msg(1, "tmpstub is now %s", tmpstub);
|
---|
| 975 | unlink("/tmp/PARTIMAGEHACK-POSITION");
|
---|
| 976 | unlink(PAUSE_PARTIMAGE_FNAME);
|
---|
| 977 | paranoid_system("rm -f /tmp/*PARTIMAGE*");
|
---|
| 978 | sprintf(curr_fifo, "%s.%03d", tmpstub, fifo_number);
|
---|
| 979 | sprintf(next_fifo, "%s.%03d", tmpstub, fifo_number+1);
|
---|
| 980 | sprintf(afternxt_fifo, "%s.%03d", tmpstub, fifo_number+2);
|
---|
| 981 | mkfifo(PIH_LOG, S_IRWXU|S_IRWXG);
|
---|
| 982 | mkfifo(curr_fifo, S_IRWXU|S_IRWXG);
|
---|
| 983 | mkfifo(next_fifo, S_IRWXU|S_IRWXG); // make sure _next_ fifo already exists before we call partimage
|
---|
| 984 | mkfifo(afternxt_fifo, S_IRWXU|S_IRWXG);
|
---|
| 985 | system("cat " PIH_LOG " > /dev/null &");
|
---|
| 986 | log_msg(3, "curr_fifo = %s", curr_fifo);
|
---|
| 987 | log_msg(3, "next_fifo = %s", next_fifo);
|
---|
| 988 | if (!does_file_exist(input_fifo)) { fatal_error ("input fifo does not exist" ); }
|
---|
| 989 | if (!(fin = fopen(input_fifo, "r"))) { fatal_error ("Unable to openin from input_fifo"); }
|
---|
| 990 | if ( !find_home_of_exe("partimagehack")) { fatal_error( "partimagehack not found" ); }
|
---|
| 991 | sz_call_to_partimage[0]=2;
|
---|
| 992 | sz_call_to_partimage[1]=0;
|
---|
| 993 | sprintf(sz_call_to_partimage+2, "partimagehack " PARTIMAGE_PARAMS " restore %s %s > /dev/null 2>> %s", output_device, curr_fifo, MONDO_LOGFILE);
|
---|
| 994 | log_msg(1, "output_device = %s", output_device);
|
---|
| 995 | log_msg(1, "curr_fifo = %s", curr_fifo);
|
---|
| 996 | log_msg(1, "sz_call_to_partimage+2 = %s", sz_call_to_partimage+2);
|
---|
| 997 | res = pthread_create(&partimage_thread, NULL, call_partimage_in_bkgd, (void*)sz_call_to_partimage);
|
---|
| 998 | if (res) { fatal_error("Failed to create thread to call partimage"); }
|
---|
| 999 | log_msg(1, "Running fore/back at same time");
|
---|
| 1000 | log_msg(2," Trying to openin %s", input_fifo);
|
---|
| 1001 | if (!does_file_exist(input_fifo)) { log_msg(2, "Warning - %s does not exist", input_fifo); }
|
---|
| 1002 | while(!does_file_exist("/tmp/PARTIMAGEHACK-POSITION"))
|
---|
| 1003 | {
|
---|
| 1004 | log_msg(6, "Waiting for partimagehack (restore) to start");
|
---|
| 1005 | sleep(1);
|
---|
| 1006 | }
|
---|
| 1007 | while(sz_call_to_partimage[0]>0)
|
---|
| 1008 | {
|
---|
| 1009 | if (fread(tmp, 1, 128, fin)!=128) { fatal_error("Cannot read introductory block"); }
|
---|
| 1010 | if (strstr(tmp, NEXT_SUBVOL_PLEASE))
|
---|
| 1011 | { log_msg(2, "Great. Next subvol coming up."); }
|
---|
| 1012 | else if (strstr(tmp, NO_MORE_SUBVOLS))
|
---|
| 1013 | { log_msg(2, "Great. That was the last subvol."); break; }
|
---|
| 1014 | else
|
---|
| 1015 | { log_msg(2, "WTF is this? '%s'", tmp); fatal_error("Unknown interim block"); }
|
---|
| 1016 | if (feof(fin)) { log_msg(1, "Eof(fin) detected. Breaking."); break; }
|
---|
| 1017 | log_msg(3, "Processing subvol %d", fifo_number);
|
---|
| 1018 | log_msg(5, "fifo_number=%d", fifo_number);
|
---|
| 1019 | if (!(fout = fopen(curr_fifo, "w"))) { fatal_error("Cannot openout to curr_fifo"); }
|
---|
| 1020 | log_msg(6, "Deleting %s", oldest_fifo);
|
---|
| 1021 | copy_from_src_to_dest(fout, fin, 'r');
|
---|
| 1022 | paranoid_fclose(fout);
|
---|
| 1023 | fifo_number ++;
|
---|
| 1024 | unlink(oldest_fifo); // just in case
|
---|
| 1025 | strcpy(oldest_fifo, prev_fifo);
|
---|
| 1026 | strcpy(prev_fifo, curr_fifo);
|
---|
| 1027 | strcpy(curr_fifo, next_fifo);
|
---|
| 1028 | strcpy(next_fifo, afternxt_fifo);
|
---|
| 1029 | sprintf(afternxt_fifo, "%s.%03d", tmpstub, fifo_number+2);
|
---|
| 1030 | log_msg(6, "Creating %s", afternxt_fifo);
|
---|
| 1031 | mkfifo(afternxt_fifo, S_IRWXU|S_IRWXG); // make sure _next_ fifo already exists before we access current fifo
|
---|
| 1032 | fflush(fin);
|
---|
| 1033 | // system("sync");
|
---|
| 1034 | usleep(1000L*100L);
|
---|
| 1035 | }
|
---|
| 1036 | paranoid_fclose(fin);
|
---|
| 1037 | paranoid_system("sync");
|
---|
| 1038 | log_msg(1, "Partimagehack has finished. Great. Fin-closing.");
|
---|
| 1039 | log_msg(1, "Waiting for pthread_join");
|
---|
| 1040 | pthread_join(partimage_thread, NULL);
|
---|
| 1041 | res = sz_call_to_partimage[1];
|
---|
| 1042 | log_msg(1, "Yay. Partimagehack (restore) returned %d", res);
|
---|
| 1043 | unlink(prev_fifo);
|
---|
| 1044 | unlink(curr_fifo);
|
---|
| 1045 | unlink(next_fifo);
|
---|
| 1046 | unlink(afternxt_fifo);
|
---|
| 1047 | unlink(PIH_LOG);
|
---|
| 1048 | paranoid_free(tmp);
|
---|
| 1049 | paranoid_free(sz_call_to_partimage);
|
---|
| 1050 | paranoid_free(stuff);
|
---|
| 1051 | paranoid_free(prev_fifo);
|
---|
| 1052 | paranoid_free(curr_fifo);
|
---|
| 1053 | paranoid_free(next_fifo);
|
---|
| 1054 | paranoid_free(afternxt_fifo);
|
---|
| 1055 | paranoid_free(oldest_fifo);
|
---|
| 1056 | paranoid_free(tmpstub);
|
---|
| 1057 | return(res);
|
---|
| 1058 | }
|
---|
| 1059 |
|
---|