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