diff options
Diffstat (limited to 'sys-utils/flock.c')
| -rw-r--r-- | sys-utils/flock.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys-utils/flock.c b/sys-utils/flock.c index 7d321de0d..a5003193e 100644 --- a/sys-utils/flock.c +++ b/sys-utils/flock.c @@ -129,6 +129,7 @@ int main(int argc, char *argv[]) int have_timeout = 0; int type = LOCK_EX; int block = 0; + int open_accmode; int fd = -1; int opt, ix; int do_close = 0; @@ -211,9 +212,11 @@ int main(int argc, char *argv[]) } filename = argv[optind]; - fd = open(filename, O_RDONLY|O_NOCTTY|O_CREAT, 0666); + open_accmode = ((type == LOCK_SH || access(filename, R_OK|W_OK) < 0) ? + O_RDONLY : O_RDWR); + fd = open(filename, open_accmode|O_NOCTTY|O_CREAT, 0666); /* Linux doesn't like O_CREAT on a directory, even though it should be a - no-op */ + no-op; POSIX doesn't allow O_RDWR or O_WRONLY */ if (fd < 0 && errno == EISDIR) fd = open(filename, O_RDONLY|O_NOCTTY); |