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Bug #40693 reimplementation of strtok_r in TSRM/tsrm_strtok_r.c
Submitted: 2007-03-02 17:22 UTC Modified: 2007-03-02 20:08 UTC
From: stefan dot teleman at gmail dot com Assigned:
Status: Wont fix Package: Strings related
PHP Version: 5.2.1 OS: *
Private report: No CVE-ID: None
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 [2007-03-02 17:22 UTC] stefan dot teleman at gmail dot com 
Description:
------------
TSRM/tsrm_strtok_r.c reimplements strtok_r(3C) (php-5.2.0 and php-5.2.1).

Please don't do this on Solaris. There is no reason to reimplement a Standard C Library function.

diff -wu output included below.



Reproduce code:
---------------
--- tsrm_strtok_r.c.orig        2000-09-11 11:15:29.000000000 -0400
+++ tsrm_strtok_r.c     2007-03-02 03:25:44.953128000 -0500
@@ -16,6 +16,9 @@
 
 char *tsrm_strtok_r(char *s, const char *delim, char **last)
 {
+#if defined(SOLARIS)
+        return strtok_r(s, delim, last);
+#else
        char *token;
 
        if (s == NULL) {
@@ -41,6 +44,7 @@
                *last = s + 1;
        }
        return token;
+#endif
 }
 
 #if 0

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 [2007-03-02 19:58 UTC] helly@php.net 
Usually reimplementation of a c library function means that we rely on very specific functionality. Otfen in this cases many implementations are simply plain wrong. This is true for a bunch of stuff where werequire the C99 compliant implementation.
 [2007-03-02 20:08 UTC] stefan dot teleman at gmail dot com 
Exactly what features or specific functionality does your strtok_r provide that strtok_r implementations from Solaris or Linux or BSD or Windows do not ?

None.

If you have identified a bug in any of these implementations of strtok_r(3C), please identify the bug.

Duplicating Standard C Library all over the place just because "it doesn't crash anymore if I do this" is not really a valid justification.

Thank you.

Stefan Teleman
 
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