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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#include <errno.h>
#include <rte_string_fns.h>
/* split string into tokens */
int
rte_strsplit(char *string, int stringlen,
char **tokens, int maxtokens, char delim)
{
int i, tok = 0;
int tokstart = 1; /* first token is right at start of string */
if (string == NULL || tokens == NULL)
goto einval_error;
for (i = 0; i < stringlen; i++) {
if (string[i] == '\0' || tok >= maxtokens)
break;
if (tokstart) {
tokstart = 0;
tokens[tok++] = &string[i];
}
if (string[i] == delim) {
string[i] = '\0';
tokstart = 1;
}
}
return tok;
einval_error:
errno = EINVAL;
return -1;
}
/* Copy src string into dst.
*
* Return negative value and NUL-terminate if dst is too short,
* Otherwise return number of bytes copied.
*/
ssize_t
rte_strscpy(char *dst, const char *src, size_t dsize)
{
size_t nleft = dsize;
size_t res = 0;
/* Copy as many bytes as will fit. */
while (nleft != 0) {
dst[res] = src[res];
if (src[res] == '\0')
return res;
res++;
nleft--;
}
/* Not enough room in dst, set NUL and return error. */
if (res != 0)
dst[res - 1] = '\0';
return -E2BIG;
}
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