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authordimitri staessens <dimitri.staessens@intec.ugent.be>2016-09-07 14:53:19 +0200
committerdimitri staessens <dimitri.staessens@intec.ugent.be>2016-09-07 14:53:19 +0200
commita92a55f2489820f030f461ebc09d621b001a01df (patch)
treebea8fe98f0809d856a243e8485535fe7ac993808 /src/lib/shm_rdrbuff.c
parent8ec02f772f3530d5c9023bd1ccf74fea555c69ed (diff)
downloadouroboros-a92a55f2489820f030f461ebc09d621b001a01df.tar.gz
ouroboros-a92a55f2489820f030f461ebc09d621b001a01df.zip
lib: Set umask for file creation permissions
Permissions are now set correctly upon creation, removing the need to call fchmod.
Diffstat (limited to 'src/lib/shm_rdrbuff.c')
-rw-r--r--src/lib/shm_rdrbuff.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/src/lib/shm_rdrbuff.c b/src/lib/shm_rdrbuff.c
index 2f0f15be..3eae8f97 100644
--- a/src/lib/shm_rdrbuff.c
+++ b/src/lib/shm_rdrbuff.c
@@ -154,6 +154,7 @@ static char * rdrb_filename(enum qos_cube qos)
struct shm_rdrbuff * shm_rdrbuff_create()
{
struct shm_rdrbuff * rdrb;
+ mode_t mask;
int shm_fd;
uint8_t * shm_base;
pthread_mutexattr_t mattr;
@@ -171,6 +172,8 @@ struct shm_rdrbuff * shm_rdrbuff_create()
return NULL;
}
+ mask = umask(0);
+
shm_fd = shm_open(shm_rdrb_fn, O_CREAT | O_EXCL | O_RDWR, 0666);
if (shm_fd == -1) {
LOG_DBGF("Failed creating shared memory map.");
@@ -179,12 +182,7 @@ struct shm_rdrbuff * shm_rdrbuff_create()
return NULL;
}
- if (fchmod(shm_fd, 0666)) {
- LOG_DBGF("Failed to chmod shared memory map.");
- free(shm_rdrb_fn);
- free(rdrb);
- return NULL;
- }
+ umask(mask);
if (ftruncate(shm_fd, SHM_FILE_SIZE - 1) < 0) {
LOG_DBGF("Failed to extend shared memory map.");