45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
/* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software
|
|
* is freely granted, provided that this notice is preserved.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <sys/types.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "buf_findstr.h"
|
|
|
|
/* Find string str in buffer buf of length buf_len. Point buf to character after string,
|
|
or set it to NULL if end of buffer is reached. Return 1 if found, 0 if not. */
|
|
int
|
|
_buf_findstr(const char *str, char **buf, size_t *buf_len)
|
|
{
|
|
int i = 0;
|
|
int j = 0;
|
|
|
|
for (i = 0; i < *buf_len; i++)
|
|
{
|
|
if (str[0] == (*buf)[i])
|
|
{
|
|
j = i;
|
|
while (str[j - i] && (str[j - i] == (*buf)[j])) j++;
|
|
if(str[j - i] == '\0')
|
|
{
|
|
*buf += j;
|
|
*buf_len -= j;
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (i == *buf_len)
|
|
{
|
|
*buf += *buf_len;
|
|
*buf_len = 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|