add setresuid/setresgid functions (nonstandard)

diff --git a/include/unistd.h b/include/unistd.h
index a356111..35df1cd 100644 (file)
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -154,6 +154,8 @@ int sethostname(const char *, size_t);
 int usleep(unsigned);
 unsigned ualarm(unsigned, unsigned);
 int setgroups(int, const gid_t []);
+int setresuid(uid_t, uid_t, uid_t);
+int setresgid(gid_t, gid_t, gid_t);
 #endif
 
 #define _XOPEN_VERSION          700

diff --git a/src/unistd/setresgid.c b/src/unistd/setresgid.c
new file mode 100644 (file)
index 0000000..3c85a82
--- /dev/null
+++ b/src/unistd/setresgid.c
@@ -0,0 +1,10 @@
+#define _GNU_SOURCE
+#include <unistd.h>
+#include "syscall.h"
+#include "libc.h"
+
+int setresgid(gid_t rgid, gid_t egid, gid_t sgid)
+{
+       if (libc.rsyscall) return libc.rsyscall(__NR_setresgid, rgid, egid, sgid, 0, 0, 0);
+       return syscall(SYS_setresgid, rgid, egid, sgid);
+}

diff --git a/src/unistd/setresuid.c b/src/unistd/setresuid.c
new file mode 100644 (file)
index 0000000..376ce40
--- /dev/null
+++ b/src/unistd/setresuid.c
@@ -0,0 +1,10 @@
+#define _GNU_SOURCE
+#include <unistd.h>
+#include "syscall.h"
+#include "libc.h"
+
+int setresuid(uid_t ruid, uid_t euid, uid_t suid)
+{
+       if (libc.rsyscall) return libc.rsyscall(__NR_setresuid, ruid, euid, suid, 0, 0, 0);
+       return syscall(SYS_setresuid, ruid, euid, suid);
+}