Hi Minh, ack with some comments, (on top of AndersW comments).
/Thanks HansN
On 03/15/2018 07:50 AM, Minh Chau wrote:
---
src/base/os_defs.c | 25 ++++++++++++++++++++-----
1 file changed, 20 insertions(+), 5 deletions(-)
diff --git a/src/base/os_defs.c b/src/base/os_defs.c
index 6f9ec52..e914011 100644
--- a/src/base/os_defs.c
+++ b/src/base/os_defs.c
@@ -1052,14 +1052,29 @@ uint32_t
ncs_os_process_execute_timed(NCS_OS_PROC_EXECUTE_TIMED_INFO *req)
* child */
if (getenv("OPENSAF_KEEP_FD_OPEN_AFTER_FORK") == NULL) {
/* Close all inherited file descriptors */
- int i = sysconf(_SC_OPEN_MAX);
- if (i == -1) {
+ int fd_max = sysconf(_SC_OPEN_MAX);
+
+ if (fd_max == -1) {
syslog(LOG_ERR, "%s: sysconf failed - %s",
- __FUNCTION__, strerror(errno));
+ __FUNCTION__, strerror(errno));
exit(EXIT_FAILURE);
}
- for (i--; i >= 0; --i)
- (void)close(i); /* close all descriptors */
+ struct dirent *pentry = NULL;
+ DIR *dir = opendir("/proc/self/fd");
+
+ if (dir != NULL) {
+ while ((pentry = readdir(dir)) != NULL) {
[HansN] readdir will return not only 0, 1, 2 etc. but also the current
directory '.' and '..' this should be handled here.
[HansN] perhaps we should use readdir_r instead?
+ int fd = strtoimax(pentry->d_name,
NULL, 10);
+ if (fd > INT_MIN && fd < fd_max)
(void)close(fd);
+ }
+ (void)closedir(dir);
+ } else {
+ /* fall back, close all possible descriptors */
+ syslog(LOG_ERR, "%s: opendir failed - %s",
+ __FUNCTION__, strerror(errno));
+ for (fd_max--; fd_max >= 0; --fd_max)
+ (void)close(fd_max);
+ }
/* Redirect standard files to /dev/null */
if (freopen("/dev/null", "r", stdin) == NULL)
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Opensaf-devel mailing list
Opensaf-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/opensaf-devel
