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mirror of https://github.com/moparisthebest/wget synced 2024-07-03 16:38:41 -04:00

[svn] Update strstr to the one in glibc 2.3.5.

This commit is contained in:
hniksic 2005-05-05 15:39:28 -07:00
parent 818fbdf32a
commit de5fd29373
2 changed files with 69 additions and 67 deletions

View File

@ -1,3 +1,7 @@
2005-05-06 Hrvoje Niksic <hniksic@xemacs.org>
* cmpt.c (strstr): Updated from glibc 2.3.5.
2005-05-05 Hrvoje Niksic <hniksic@xemacs.org>
* http.c (http_atotm): Zero out the whole struct tm being passed

View File

@ -1,5 +1,5 @@
/* Replacements for routines missing on some systems.
Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
Copyright (C) 1995-2005 Free Software Foundation, Inc.
This file is part of GNU Wget.
@ -121,8 +121,8 @@ strncasecmp (const char *s1, const char *s2, size_t n)
#endif /* not HAVE_STRNCASECMP */
#ifndef HAVE_STRSTR
/* From GNU libc 2.0.6. */
/* Return the first ocurrence of NEEDLE in HAYSTACK. */
/* From GNU libc 2.3.5. */
/*
* My personal strstr() implementation that beats most other algorithms.
* Until someone tells me otherwise, I assume that this is the
@ -131,90 +131,88 @@ strncasecmp (const char *s1, const char *s2, size_t n)
* as much fun trying to understand it, as I had to write it :-).
*
* Stephen R. van den Berg, berg@pool.informatik.rwth-aachen.de */
typedef unsigned chartype;
#undef strstr
char *
strstr (phaystack, pneedle)
const char *phaystack;
const char *pneedle;
strstr (const char *phaystack, const char *pneedle)
{
register const unsigned char *haystack, *needle;
register chartype b, c;
const unsigned char *haystack, *needle;
chartype b;
const unsigned char *rneedle;
haystack = (const unsigned char *) phaystack;
needle = (const unsigned char *) pneedle;
b = *needle;
if (b != '\0')
if ((b = *(needle = (const unsigned char *) pneedle)))
{
chartype c;
haystack--; /* possible ANSI violation */
do
{
c = *++haystack;
if (c == '\0')
goto ret0;
}
while (c != b);
c = *++needle;
if (c == '\0')
{
chartype a;
do
if (!(a = *++haystack))
goto ret0;
while (a != b);
}
if (!(c = *++needle))
goto foundneedle;
++needle;
goto jin;
for (;;)
{
register chartype a;
register const unsigned char *rhaystack, *rneedle;
do
{
a = *++haystack;
if (a == '\0')
goto ret0;
if (a == b)
break;
a = *++haystack;
if (a == '\0')
goto ret0;
shloop: }
while (a != b);
jin: a = *++haystack;
if (a == '\0')
goto ret0;
if (a != c)
goto shloop;
rhaystack = haystack-- + 1;
rneedle = needle;
a = *rneedle;
if (*rhaystack == a)
do
{
if (a == '\0')
goto foundneedle;
++rhaystack;
a = *++needle;
if (*rhaystack != a)
break;
if (a == '\0')
goto foundneedle;
++rhaystack;
a = *++needle;
chartype a;
if (0)
jin:{
if ((a = *++haystack) == c)
goto crest;
}
while (*rhaystack == a);
needle = rneedle; /* took the register-poor approach */
if (a == '\0')
else
a = *++haystack;
do
{
for (; a != b; a = *++haystack)
{
if (!a)
goto ret0;
if ((a = *++haystack) == b)
break;
if (!a)
goto ret0;
}
}
while ((a = *++haystack) != c);
}
crest:
{
chartype a;
{
const unsigned char *rhaystack;
if (*(rhaystack = haystack-- + 1) == (a = *(rneedle = needle)))
do
{
if (!a)
goto foundneedle;
if (*++rhaystack != (a = *++needle))
break;
if (!a)
goto foundneedle;
}
while (*++rhaystack == (a = *++needle));
needle = rneedle; /* took the register-poor aproach */
}
if (!a)
break;
}
}
}
foundneedle:
return (char*) haystack;
return (char *) haystack;
ret0:
return 0;
}