citadel/qpdecode.c

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