glines/glines_store.c

   1 #include <stdio.h>
   2 #include "glines.h"
   3
   4 static int glstore_savefile(const char *file) {
   5   FILE *fp;
   6   gline *gl;
   7   int count;
   8
   9   fp = fopen(file, "w");
  10
  11   if (!fp)
  12     return -1;
  13
  14   count = 0;
  15
  16   for (gl = glinelist; gl; gl = gl->next) {
  17     fprintf(fp, "%s %jd,%jd,%jd,%d,%s,%s\n",
  18       glinetostring(gl), (intmax_t)gl->expire, (intmax_t)gl->lastmod, (intmax_t)gl->lifetime,
  19       (gl->flags & GLINE_ACTIVE) ? 1 : 0,
  20       gl->creator->content, gl->reason->content);
  21     count++;
  22   }
  23
  24   fclose(fp);
  25
  26   return count;
  27 }
  28
  29 static int glstore_loadfile(const char *file) {
  30   FILE *fp;
  31   char mask[512], creator[512], reason[512];
  32   intmax_t expire, lastmod, lifetime;
  33   int active, count;
  34   gline *gl;
  35
  36   fp = fopen(file, "r");
  37
  38   if (!fp)
  39     return -1;
  40
  41   count = 0;
  42
  43   while (!feof(fp)) {
  44     if (fscanf(fp, "%[^ ]%jd,%jd,%jd,%d,%[^,],%[^\n]\n", mask, &expire, &lastmod, &lifetime, &active, creator, reason) != 7)
  45       continue;
  46
  47     count++;
  48
  49     gl = findgline(mask);
  50
  51     if (gl)
  52       continue; /* Don't update existing glines. */
  53
  54     gl = makegline(mask);
  55
  56     if (!gl)
  57       continue;
  58
  59     gl->creator = getsstring(creator, 512);
  60
  61     gl->flags = active ? GLINE_ACTIVE : 0;
  62
  63     gl->reason = getsstring(reason, 512);
  64     gl->expire = expire;
  65     gl->lastmod = lastmod;
  66     gl->lifetime = lifetime;
  67
  68     gl->next = glinelist;
  69     glinelist = gl;
  70   }
  71
  72   return count;
  73 }
  74
  75 int glstore_save(void) {
  76   char path[512], srcfile[512], dstfile[512];
  77   int i, count;
  78
  79   snprintf(path, sizeof(path), "%s.temp", GLSTORE_PATH_PREFIX);
  80
  81   count = glstore_savefile(path);
  82
  83   if (count < 0) {
  84     Error("glines", ERR_ERROR, "Could not save glines to %s", path);
  85     return -1;
  86   }
  87
  88   for (i = GLSTORE_SAVE_FILES; i > 0; i--) {
  89     snprintf(srcfile, sizeof(srcfile), "%s.%d", GLSTORE_PATH_PREFIX, i - 1);
  90     snprintf(dstfile, sizeof(dstfile), "%s.%d", GLSTORE_PATH_PREFIX, i);
  91     (void) rename(srcfile, dstfile);
  92   }
  93
  94   (void) rename(path, srcfile);
  95
  96   return count;
  97 }
  98
  99 int glstore_load(void) {
 100   char path[512];
 101   snprintf(path, sizeof(path), "%s.0", GLSTORE_PATH_PREFIX);
 102
 103   return glstore_loadfile(path);
 104 }
 105