file.c

   1 #include <malloc.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5
   6 #include "debug.h"
   7
   8 #include "file.h"
   9
  10 #define TLEN 8
  11
  12 /* read full file */
  13
  14 int readfile (char **buffer, char *filename)
  15 {
  16
  17     /* open file */
  18
  19     VERBOSE (DEBUG, PRINT ("Opening file %s\n", filename));
  20     FILE *fd = fopen (filename, "rb");
  21     if (fd == NULL) {
  22         VERBOSE (WARNING, PRINT ("Can't open file (%s)\n", filename));
  23         return -1;
  24     }
  25
  26     VERBOSE (DEBUG, PRINT ("Seek file size\n"));
  27     fseek (fd, 0, SEEK_END);
  28     int size = ftell (fd);
  29     fseek (fd, 0, SEEK_SET);  /* same as rewind(f); */
  30
  31     /* read full file */
  32
  33     VERBOSE (DEBUG, PRINT ("Reading %d bytes\n", size));
  34     *buffer = calloc (size + 1, 1);
  35     fread (*buffer, size, 1, fd);
  36     fclose (fd);
  37
  38     (*buffer)[size] = 0;
  39     return size;
  40 }
  41
  42 /* temp name */
  43
  44 char *tempname (char *tempdir)
  45 {
  46     char table[65] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_";
  47
  48     unsigned int len = strlen (tempdir) + 1 + 4 + TLEN + 1;
  49     char *name = (char *) calloc (len, 1);
  50
  51     sprintf (name, "%s/tmp-", tempdir);
  52     while (strlen (name) + 1 < len) {
  53         name[strlen (name)] = table[rand () % 64];
  54     }
  55
  56     return name;
  57 }
  58
  59 /* vim: set ts=4 sw=4 et: */