40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
/****************************************************************
|
|
* *
|
|
* Copyright 2008 Fidelity Information Services, Inc *
|
|
* *
|
|
* This source code contains the intellectual property *
|
|
* of its copyright holder(s), and is made available *
|
|
* under a license. If you do not know the terms of *
|
|
* the license, please stop and do not read further. *
|
|
* *
|
|
****************************************************************/
|
|
|
|
#include "mdef.h"
|
|
|
|
#include "gtm_pwd.h"
|
|
|
|
#undef getpwuid /* since we are going to use the system level "getpwuid" function, undef the alias to "gtm_getpwuid" */
|
|
|
|
#include <signal.h>
|
|
|
|
GBLREF boolean_t blocksig_initialized;
|
|
GBLREF sigset_t block_sigsent;
|
|
|
|
/* This is a wrapper for the system "getpwuid" and is needed to prevent signal interrupts from occurring in the middle
|
|
* of getpwuid since that is not signal-safe (i.e. could hold system library related locks that might prevent a signal
|
|
* handler from running other system library calls which use the same lock).
|
|
*/
|
|
struct passwd *gtm_getpwuid(uid_t uid)
|
|
{
|
|
struct passwd *retval;
|
|
sigset_t savemask;
|
|
|
|
assert(blocksig_initialized); /* the set of blocking signals should be initialized at process startup */
|
|
if (blocksig_initialized) /* In pro, dont take chances and handle case where it is not initialized */
|
|
sigprocmask(SIG_BLOCK, &block_sigsent, &savemask);
|
|
retval = getpwuid(uid);
|
|
if (blocksig_initialized)
|
|
sigprocmask(SIG_SETMASK, &savemask, NULL);
|
|
return retval;
|
|
}
|