When using open(), the O_CREAT flag must be given a mode, otherwise it uses random garbage from the stack. Also, it can fail to build:
In file included from /usr/include/fcntl.h:290:0, from fw_env_main.c:42: In function 'open', inlined from 'main' at fw_env_main.c:97:9: /usr/include/bits/fcntl2.h:50:24: error: call to '__open_missing_mode' declared with attribute error: open with O_CREAT in second argument needs 3 arguments
Signed-off-by: Mike Frysinger vapier@gentoo.org --- tools/env/fw_env_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/env/fw_env_main.c b/tools/env/fw_env_main.c index c855f4c..40ea3f6 100644 --- a/tools/env/fw_env_main.c +++ b/tools/env/fw_env_main.c @@ -94,7 +94,7 @@ int main(int argc, char *argv[]) int lockfd = -1; int retval = EXIT_SUCCESS;
- lockfd = open(lockname, O_WRONLY | O_CREAT | O_TRUNC); + lockfd = open(lockname, O_WRONLY | O_CREAT | O_TRUNC, 0666); if (-1 == lockfd) { fprintf(stderr, "Error opening lock file %s\n", lockname); return EXIT_FAILURE;