citadel/qpdecode.c

   1 /*
   2  * $Id$
   3  *
   4  * Convert "quoted printable" encoding to binary (stdin to stdout)
   5  * Copyright (C) 1999 by Art Cancro
   6  * Distributed under the terms of the GNU General Public License.
   7  */
   8
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <stdio.h>
  12 #include <ctype.h>
  13 #include <string.h>
  14
  15 int main(int argc, char *argv[]) {
  16         char buf[80];
  17         int soft_line_break = 0;
  18         int ch;
  19
  20         while (fgets(buf, 80, stdin) != NULL) {
  21                 while (isspace(buf[strlen(buf)-1]))
  22                         buf[strlen(buf)-1] = 0;
  23                 soft_line_break = 0;
  24
  25                 while (strlen(buf) > 0) {
  26                         if (!strcmp(buf, "=")) {
  27                                 soft_line_break = 1;
  28                                 strcpy(buf, "");
  29                         } else if ( (strlen(buf)>=3) && (buf[0]=='=') ) {
  30                                 sscanf(&buf[1], "%02x", &ch);
  31                                 putc(ch, stdout);
  32                                 strcpy(buf, &buf[3]);
  33                         } else {
  34                                 putc(buf[0], stdout);
  35                                 strcpy(buf, &buf[1]);
  36                         }
  37                 }
  38                 if (soft_line_break == 0) printf("\r\n");
  39         }
  40         exit(0);
  41 }