rte_string_fns.h File Reference

#include <stdio.h>
#include <string.h>
#include <rte_common.h>

Go to the source code of this file.

Functions
int	rte_strsplit (char *string, int stringlen, char **tokens, int maxtokens, char delim)
ssize_t	rte_strscpy (char *dst, const char *src, size_t dsize)

Detailed Description

String-related functions as replacement for libc equivalents

Definition in file rte_string_fns.h.

Function Documentation

rte_strsplit()

int rte_strsplit	(	char *	string,
		int	stringlen,
		char **	tokens,
		int	maxtokens,
		char	delim
	)

Takes string "string" parameter and splits it at character "delim" up to maxtokens-1 times - to give "maxtokens" resulting tokens. Like strtok or strsep functions, this modifies its input string, by replacing instances of "delim" with '\0'. All resultant tokens are returned in the "tokens" array which must have enough entries to hold "maxtokens".

Parameters

string	The input string to be split into tokens
stringlen	The max length of the input buffer
tokens	The array to hold the pointers to the tokens in the string
maxtokens	The number of elements in the tokens array. At most, maxtokens-1 splits of the string will be done.
delim	The character on which the split of the data will be done

Returns

The number of tokens in the tokens array.

Examples:

examples/ipsec-secgw/ipsec-secgw.c, examples/kni/main.c, examples/l3fwd-acl/main.c, examples/l3fwd-power/main.c, examples/l3fwd-power/perf_core.c, examples/l3fwd/main.c, examples/performance-thread/l3fwd-thread/main.c, examples/qos_sched/args.c, examples/qos_sched/cfg_file.c, and examples/vhost_crypto/main.c.

rte_strscpy()

ssize_t rte_strscpy	(	char *	dst,
		const char *	src,
		size_t	dsize
	)

Copy string src to buffer dst of size dsize. At most dsize-1 chars will be copied. Always NUL-terminates, unless (dsize == 0). Returns number of bytes copied (terminating NUL-byte excluded) on success ; negative errno on error.

Parameters

dst	The destination string.
src	The input string to be copied.
dsize	Length in bytes of the destination buffer.

Returns

The number of bytes copied on success -E2BIG if the destination buffer is too small.

Examples:

examples/fips_validation/fips_validation.c, and examples/vdpa/main.c.