package/ead/src/tinysrp/t_read.c

   1 /*
   2  * Copyright (c) 1997-1999  The Stanford SRP Authentication Project
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be
  14  * included in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  18  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  19  *
  20  * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
  21  * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER
  22  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF
  23  * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT
  24  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  25  *
  26  * In addition, the following conditions apply:
  27  *
  28  * 1. Any software that incorporates the SRP authentication technology
  29  *    must display the following acknowlegment:
  30  *    "This product uses the 'Secure Remote Password' cryptographic
  31  *     authentication system developed by Tom Wu (tjw@CS.Stanford.EDU)."
  32  *
  33  * 2. Any software that incorporates all or part of the SRP distribution
  34  *    itself must also display the following acknowledgment:
  35  *    "This product includes software developed by Tom Wu and Eugene
  36  *     Jhong for the SRP Distribution (http://srp.stanford.edu/srp/)."
  37  *
  38  * 3. Redistributions in source or binary form must retain an intact copy
  39  *    of this copyright notice and list of conditions.
  40  */
  41
  42 #include <stdio.h>
  43 #include "config.h"
  44
  45 #define FSEPARATOR      ':'
  46
  47 int
  48 t_nextfield(fp, s, max)
  49 FILE * fp;
  50 char * s;
  51 unsigned max;
  52 {
  53   int c, count = 0;
  54
  55   while((c = getc(fp)) != EOF) {
  56     if(c == '\n') {
  57       ungetc(c, fp);
  58       break;
  59     }
  60     else if(c == FSEPARATOR)
  61       break;
  62     if(count < max - 1) {
  63       *s++ = c;
  64       ++count;
  65     }
  66   }
  67   *s++ = '\0';
  68   return count;
  69 }
  70
  71 int
  72 t_nextline(fp)
  73 FILE * fp;
  74 {
  75   int c;
  76
  77   while((c = getc(fp)) != '\n')
  78     if(c == EOF)
  79       return -1;
  80   return 0;
  81 }