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Diffstat (limited to 'x/binutils/libiberty/strstr.c')
-rw-r--r-- | x/binutils/libiberty/strstr.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/x/binutils/libiberty/strstr.c b/x/binutils/libiberty/strstr.c new file mode 100644 index 0000000..a059c7f --- /dev/null +++ b/x/binutils/libiberty/strstr.c @@ -0,0 +1,43 @@ +/* Simple implementation of strstr for systems without it. + This function is in the public domain. */ + +/* + +@deftypefn Supplemental char* strstr (const char *@var{string}, const char *@var{sub}) + +This function searches for the substring @var{sub} in the string +@var{string}, not including the terminating null characters. A pointer +to the first occurrence of @var{sub} is returned, or @code{NULL} if the +substring is absent. If @var{sub} points to a string with zero +length, the function returns @var{string}. + +@end deftypefn + + +*/ + + +/* FIXME: The above description is ANSI compiliant. This routine has not + been validated to comply with it. -fnf */ + +char * +strstr (s1, s2) + char *s1, *s2; +{ + register char *p = s1; + extern char *strchr (); + extern int strncmp (); +#if __GNUC__ >= 2 + extern __SIZE_TYPE__ strlen (const char *); +#endif + register int len = strlen (s2); + + for (; (p = strchr (p, *s2)) != 0; p++) + { + if (strncmp (p, s2, len) == 0) + { + return (p); + } + } + return (0); +} |