x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
STRSTR(3bsd) LOCAL STRSTR(3bsd)
NAME
strnstr -- locate a substring in a string
LIBRARY
library ``libbsd''
SYNOPSIS
#include <string.h>
(See libbsd(7) for include usage.)
char *
strnstr(const char *big, const char *little, size_t len);
DESCRIPTION
The strnstr() function locates the first occurrence of the null-termi-
nated string little in the string big, where not more than len characters
are searched. Characters that appear after a `\0' character are not
searched. Since the strnstr() function is a FreeBSD specific API, it
should only be used when portability is not a concern.
RETURN VALUES
If little is an empty string, big is returned; if little occurs nowhere
in big, NULL is returned; otherwise a pointer to the first character of
the first occurrence of little is returned.
EXAMPLES
The following sets the pointer ptr to NULL, because only the first 4
characters of largestring are searched:
const char *largestring = "Foo Bar Baz";
const char *smallstring = "Bar";
char *ptr;
ptr = strnstr(largestring, smallstring, 4);
SEE ALSO
strstr(3), strcasestr(3), memchr(3), memmem(3), strchr(3), strcspn(3),
strpbrk(3), strrchr(3), strsep(3), strspn(3), strtok(3), wcsstr(3)
BSD October 11, 2001 BSD
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