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- #ifdef __STDC__
- static char sccs_id[] = "@(#) strstr.c 1.1 "__DATE__" HJR";
- #else
- static char sccs_id[] = "@(#) strstr.c 1.1 26/9/90 HJR";
- #endif
-
- /* strstr.c (c) Copyright 1990 H.Rogers */
-
- #ifndef __STDC__
- #include "sys/types.h"
- #endif
- #include <string.h>
-
- #ifdef __STDC__
- char *strstr(register const char *s1,register const char *s2)
- #else
- char *strstr(s1,s2)
- register const char *s1;
- register const char *s2;
- #endif
- {
- register int l1 = strlen(s1),l2 = strlen(s2);
- register const char *e1 = s1 + l1 - l2;
-
- while (s1 < e1) { if (!strncmp(s1,s2,l2)) return((char *)s1); s1++; }
-
- return(0);
- }
-