| strnstr.c (165903) | strnstr.c (188080) |
|---|---|
| 1/*- 2 * Copyright (c) 2001 Mike Barcroft <mike@FreeBSD.org> 3 * Copyright (c) 1990, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Chris Torek. 8 * --- 21 unchanged lines hidden (view full) --- 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#if defined(LIBC_SCCS) && !defined(lint) 35static char sccsid[] = "@(#)strstr.c 8.1 (Berkeley) 6/4/93"; 36#endif /* LIBC_SCCS and not lint */ 37#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2001 Mike Barcroft <mike@FreeBSD.org> 3 * Copyright (c) 1990, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Chris Torek. 8 * --- 21 unchanged lines hidden (view full) --- 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#if defined(LIBC_SCCS) && !defined(lint) 35static char sccsid[] = "@(#)strstr.c 8.1 (Berkeley) 6/4/93"; 36#endif /* LIBC_SCCS and not lint */ 37#include <sys/cdefs.h> |
| 38__FBSDID("$FreeBSD: head/lib/libc/string/strnstr.c 165903 2007-01-09 00:28:16Z imp $"); | 38__FBSDID("$FreeBSD: head/lib/libc/string/strnstr.c 188080 2009-02-03 17:58:20Z danger $"); |
| 39 40#include <string.h> 41 42/* 43 * Find the first occurrence of find in s, where the search is limited to the 44 * first slen characters of s. 45 */ 46char * | 39 40#include <string.h> 41 42/* 43 * Find the first occurrence of find in s, where the search is limited to the 44 * first slen characters of s. 45 */ 46char * |
| 47strnstr(s, find, slen) 48 const char *s; 49 const char *find; 50 size_t slen; | 47strnstr(const char *s, const char *find, size_t slen) |
| 51{ 52 char c, sc; 53 size_t len; 54 55 if ((c = *find++) != '\0') { 56 len = strlen(find); 57 do { 58 do { 59 if (slen-- < 1 || (sc = *s++) == '\0') 60 return (NULL); 61 } while (sc != c); 62 if (len > slen) 63 return (NULL); 64 } while (strncmp(s, find, len) != 0); 65 s--; 66 } 67 return ((char *)s); 68} | 48{ 49 char c, sc; 50 size_t len; 51 52 if ((c = *find++) != '\0') { 53 len = strlen(find); 54 do { 55 do { 56 if (slen-- < 1 || (sc = *s++) == '\0') 57 return (NULL); 58 } while (sc != c); 59 if (len > slen) 60 return (NULL); 61 } while (strncmp(s, find, len) != 0); 62 s--; 63 } 64 return ((char *)s); 65} |