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Fixed bug #44836 (putenv() crashes, avoid direct reference of environ in

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POSIX systems)

# Original patch by delphij at FreeBSD dot org
This commit is contained in:
Ilia Alshanetsky 2008-05-06 18:01:32 +00:00
parent 259b652b2e
commit f5a90feff0
1 changed files with 1 additions and 7 deletions
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8
ext/standard/basic_functions.c
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@ -3820,9 +3820,7 @@ static void php_putenv_destructor(putenv_entry *pe) /* {{{ */
SetEnvironmentVariable(pe->key, "bugbug");
#endif
putenv(pe->previous_value);
# if defined(PHP_WIN32)
efree(pe->previous_value);
# endif
} else {
# if HAVE_UNSETENV
unsetenv(pe->key);
@ -4427,12 +4425,8 @@ PHP_FUNCTION(putenv)
pe.previous_value = NULL;
for (env = environ; env != NULL && *env != NULL; env++) {
if (!strncmp(*env, pe.key, pe.key_len) && (*env)[pe.key_len] == '=') { /* found it */
#if defined(PHP_WIN32)
/* must copy previous value because MSVCRT's putenv can free the string without notice */
/* must copy previous value because putenv can free the string without notice */
pe.previous_value = estrdup(*env);
#else
pe.previous_value = *env;
#endif
break;
}
}