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