authsasltobase64.c

   1 #include        <stdlib.h>
   2 #include        <string.h>
   3 #include        "rfc822/encode.h"
   4
   5 static int write_challenge(const char *p, size_t l, void *vp)
   6 {
   7         char **cp=(char **)vp;
   8
   9         while (l)
  10         {
  11                 if (*p == '\r' || *p == '\n')
  12                 {
  13                         ++p;
  14                         --l;
  15                         continue;
  16                 }
  17                 **cp = *p++;
  18                 ++*cp;
  19
  20                 --l;
  21         }
  22
  23         return 0;
  24 }
  25
  26 char *authsasl_tobase64(const char *p, int l)
  27 {
  28         char *write_challenge_buf;
  29         char *write_challenge_ptr;
  30
  31         struct libmail_encode_info encodeInfo;
  32
  33         if (l < 0)      l=strlen(p);
  34
  35         write_challenge_buf=malloc((l+3)/3*4+1);
  36         if (!write_challenge_buf)
  37                 return (0);
  38
  39         write_challenge_ptr=write_challenge_buf;
  40
  41         libmail_encode_start(&encodeInfo, "base64", &write_challenge,
  42                              &write_challenge_ptr);
  43
  44         libmail_encode(&encodeInfo, p, l);
  45         libmail_encode_end(&encodeInfo);
  46         *write_challenge_ptr=0;
  47         return (write_challenge_buf);
  48 }