std: fix linux uid_t, use uid_t/gid_t in std.os

- correct uid_t from i32 to u32 on linux
- define uid_t and gid_t for OSes missing definitions
- use uid_t/gid_t instead of plain u32s throughout std.os

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/std/os.zig b/lib/std/os.zig
index e8431c386b..3574468a38 100644
--- a/lib/std/os.zig
+++ b/lib/std/os.zig
@@ -2518,7 +2518,7 @@ pub const SetIdError = error{
     PermissionDenied,
 } || UnexpectedError;
 
-pub fn setuid(uid: u32) SetIdError!void {
+pub fn setuid(uid: uid_t) SetIdError!void {
     switch (errno(system.setuid(uid))) {
         0 => return,
         EAGAIN => return error.ResourceLimitReached,
@@ -2528,7 +2528,7 @@ pub fn setuid(uid: u32) SetIdError!void {
     }
 }
 
-pub fn setreuid(ruid: u32, euid: u32) SetIdError!void {
+pub fn setreuid(ruid: uid_t, euid: uid_t) SetIdError!void {
     switch (errno(system.setreuid(ruid, euid))) {
         0 => return,
         EAGAIN => return error.ResourceLimitReached,
@@ -2538,7 +2538,7 @@ pub fn setreuid(ruid: u32, euid: u32) SetIdError!void {
     }
 }
 
-pub fn setgid(gid: u32) SetIdError!void {
+pub fn setgid(gid: gid_t) SetIdError!void {
     switch (errno(system.setgid(gid))) {
         0 => return,
         EAGAIN => return error.ResourceLimitReached,
@@ -2548,7 +2548,7 @@ pub fn setgid(gid: u32) SetIdError!void {
     }
 }
 
-pub fn setregid(rgid: u32, egid: u32) SetIdError!void {
+pub fn setregid(rgid: gid_t, egid: gid_t) SetIdError!void {
     switch (errno(system.setregid(rgid, egid))) {
         0 => return,
         EAGAIN => return error.ResourceLimitReached,