diff options
Diffstat (limited to 'src/unistd/readlinkat.c')
| -rw-r--r-- | src/unistd/readlinkat.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/unistd/readlinkat.c b/src/unistd/readlinkat.c index 9af45cd5..f79d3d14 100644 --- a/src/unistd/readlinkat.c +++ b/src/unistd/readlinkat.c @@ -3,5 +3,12 @@ ssize_t readlinkat(int fd, const char *restrict path, char *restrict buf, size_t bufsize) { - return syscall(SYS_readlinkat, fd, path, buf, bufsize); + char dummy[1]; + if (!bufsize) { + buf = dummy; + bufsize = 1; + } + int r = __syscall(SYS_readlinkat, fd, path, buf, bufsize); + if (buf == dummy && r > 0) r = 0; + return __syscall_ret(r); } |