netinet/if_ether.h: add ETH_P_LLDP from linux v5.3

[musl] / src / stat / fchmod.c

diff --git a/src/stat/fchmod.c b/src/stat/fchmod.c
index f9b9936..7a503ee 100644 (file)
--- a/src/stat/fchmod.c
+++ b/src/stat/fchmod.c
@@ -1,7 +1,19 @@
 #include <sys/stat.h>
+#include <errno.h>
+#include <fcntl.h>
 #include "syscall.h"
 
 int fchmod(int fd, mode_t mode)
 {
-       return syscall(SYS_fchmod, fd, mode);
+       int ret = __syscall(SYS_fchmod, fd, mode);
+       if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0)
+               return __syscall_ret(ret);
+
+       char buf[15+3*sizeof(int)];
+       __procfdname(buf, fd);
+#ifdef SYS_chmod
+       return syscall(SYS_chmod, buf, mode);
+#else
+       return syscall(SYS_fchmodat, AT_FDCWD, buf, mode);
+#endif
 }