t_read.c

/*
 * Copyright (c) 1997-2007  The Stanford SRP Authentication Project
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
 *
 * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
 * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER
 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF
 * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT
 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * Redistributions in source or binary form must retain an intact copy
 * of this copyright notice.
 */

#include <stdio.h>
#include "config.h"
#include "t_read.h"

#define FSEPARATOR	':'

int
t_nextfield(fp, s, max)
FILE * fp;
char * s;
unsigned max;
{
  int c, count = 0;

  while((c = getc(fp)) != EOF) {
    if(c == '\r' || c == '\n') {
      ungetc(c, fp);
      break;
    }
    else if(c == FSEPARATOR)
      break;
    if(count < max - 1) {
      *s++ = c;
      ++count;
    }
  }
  *s++ = '\0';
  return count;
}

int
t_nextcstrfield(fp, s)
FILE * fp;
cstr * s;
{
  int c, count = 0;
  char cc;

  cstr_set_length(s, 0);
  while((c = getc(fp)) != EOF) {
    if(c == '\r' || c == '\n') {
      ungetc(c, fp);
      break;
    }
    else if(c == FSEPARATOR)
      break;

    cc = c;
    cstr_appendn(s, &cc, 1);
    ++count;
  }
  return count;
}

int
t_nextline(fp)
FILE * fp;
{
  int c;

  while((c = getc(fp)) != '\n')
    if(c == EOF)
      return -1;
  return 0;
}