src/util.c

   1 /* logjam - a GTK client for LiveJournal.
   2  * Copyright (C) 2000-2003 Evan Martin <evan@livejournal.com>
   3  */
   4 #include "glib-all.h"
   5
   6 #include <ctype.h>
   7 #include <errno.h>
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <time.h>
  12
  13 #include <sys/stat.h>
  14 #include <sys/types.h>
  15
  16 #include "util.h"
  17
  18
  19 void string_replace (char **dest, char *src) {
  20   if (*dest) g_free(*dest);
  21   *dest = src;
  22 }
  23
  24
  25 gboolean verify_dir (const char *path, GError **err) {
  26   /* mode 0700 so other people can't peek at passwords! */
  27   if (mkdir(path, 0700) < 0 && errno != EEXIST) {
  28     g_set_error(err, 0, 0, /* FIXME domain */ _("Failed to create directory '%s': %s"), path, g_strerror(errno));
  29     return FALSE;
  30   }
  31   return TRUE;
  32 }
  33
  34
  35 static gboolean verify_path_ex (char *path, int include_last, GError **err) {
  36   int i, len, reallen;
  37   len = reallen = (int)strlen(path);
  38   if (!include_last) {
  39     for (i = len-1; i > 0; --i) if (path[i] == G_DIR_SEPARATOR) break;
  40     if (i > 0) { len = i; path[len] = 0; }
  41   }
  42   /* the common case is that the path already exists */
  43   if (!verify_dir(path, NULL)) {
  44     /* otherwise, start creating parent directories until we succeed */
  45     for (i = len-1; i > 0; --i) {
  46       if (path[i] == G_DIR_SEPARATOR) {
  47         path[i] = 0;
  48         if (verify_dir(path, NULL)) { path[i] = G_DIR_SEPARATOR; break; }
  49         path[i] = G_DIR_SEPARATOR;
  50       }
  51     }
  52     /* once a parent dir succeeded, create the subdirectories we needed */
  53     ++i;
  54     for (; i < len; ++i) {
  55       if (path[i] == G_DIR_SEPARATOR) {
  56         path[i] = 0;
  57         if (!verify_dir(path, err)) return FALSE;
  58         path[i] = G_DIR_SEPARATOR;
  59       }
  60     }
  61     if (!verify_dir(path, err)) return FALSE;
  62   }
  63   if (!include_last) path[len] = G_DIR_SEPARATOR;
  64   return TRUE;
  65 }
  66
  67
  68 static void _xfree_ptr (void *p) {
  69   void **pp = (void **)p;
  70   if (*pp) free(*pp);
  71 }
  72
  73
  74 gboolean verify_path (const char *path, int include_last, GError **err) {
  75   if (path != NULL) {
  76     __attribute__((cleanup(_xfree_ptr))) char *p = strdup(path);
  77     return verify_path_ex(p, include_last, err);
  78   }
  79   return FALSE;
  80 }
  81
  82
  83 void xml_escape (char **text) {
  84   char *esc;
  85   if (!text || !*text) return;
  86   esc = g_markup_escape_text(*text, -1);
  87   g_free(*text);
  88   *text = esc;
  89 }