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Set mode when creating shm object

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$ wdisplays
shm_open: Permission denied
shm_open: Permission denied
shm_open: Permission denied
shm_open: Permission denied
^C

$ posixshmcontrol ls
MODE            OWNER   GROUP   SIZE    PATH
---------       foo     foo     33177600        /wd-DP-1
This commit is contained in:
Jan Beich 2019-10-04 05:10:05 +00:00
parent 049bf5bd8f
commit bfaf2211c0
1 changed files with 2 additions and 1 deletions
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3
src/outputs.c
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@ -36,6 +36,7 @@
#include <stdarg.h> #include <stdarg.h>
#include <sys/mman.h> #include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h> #include <fcntl.h>
#include <unistd.h> #include <unistd.h>
@ -190,7 +191,7 @@ static int create_shm_file(size_t size, const char *fmt, ...) {
return -1; return -1;
} }
fd = shm_open(shm_name, O_CREAT | O_RDWR, 0); fd = shm_open(shm_name, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR);
if (fd == -1) { if (fd == -1) {
fprintf(stderr, "shm_open: %s\n", strerror(errno)); fprintf(stderr, "shm_open: %s\n", strerror(errno));
free(shm_name); free(shm_name);