unix: add Getresuid and Getresgid for OpenBSD

Addresses golang/go#60483. This change was successfully tested on amd64 and adjusted accordingly for the other architectures.
golang · Jun 3, 2023 · cff1170 · cff1170
1 parent b52f544
commit cff1170
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Showing 15 changed files with 247 additions and 6 deletions.
diff --git a/unix/syscall_openbsd.go b/unix/syscall_openbsd.go
@@ -151,6 +151,21 @@ func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
 	return
 }
 
+//sysnb	getresuid(ruid *_C_int, euid *_C_int, suid *_C_int)
+//sysnb	getresgid(rgid *_C_int, egid *_C_int, sgid *_C_int)
+
+func Getresuid() (ruid, euid, suid int) {
+	var r, e, s _C_int
+	getresuid(&r, &e, &s)
+	return int(r), int(e), int(s)
+}
+
+func Getresgid() (rgid, egid, sgid int) {
+	var r, e, s _C_int
+	getresgid(&r, &e, &s)
+	return int(r), int(e), int(s)
+}
+
 //sys	ioctl(fd int, req uint, arg uintptr) (err error)
 //sys	ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL
 
@@ -338,8 +353,6 @@ func Uname(uname *Utsname) error {
 // getgid
 // getitimer
 // getlogin
-// getresgid
-// getresuid
 // getthrid
 // ktrace
 // lfs_bmapv

diff --git a/unix/zsyscall_openbsd_386.go b/unix/zsyscall_openbsd_386.go
diff --git a/unix/zsyscall_openbsd_386.s b/unix/zsyscall_openbsd_386.s
@@ -158,6 +158,16 @@ TEXT libc_getcwd_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_getcwd_trampoline_addr(SB), RODATA, $4
 DATA	·libc_getcwd_trampoline_addr(SB)/4, $libc_getcwd_trampoline<>(SB)
 
+TEXT libc_getresuid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresuid(SB)
+GLOBL	·libc_getresuid_trampoline_addr(SB), RODATA, $4
+DATA	·libc_getresuid_trampoline_addr(SB)/4, $libc_getresuid_trampoline<>(SB)
+
+TEXT libc_getresgid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresgid(SB)
+GLOBL	·libc_getresgid_trampoline_addr(SB), RODATA, $4
+DATA	·libc_getresgid_trampoline_addr(SB)/4, $libc_getresgid_trampoline<>(SB)
+
 TEXT libc_ioctl_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_ioctl(SB)
 GLOBL	·libc_ioctl_trampoline_addr(SB), RODATA, $4

diff --git a/unix/zsyscall_openbsd_amd64.go b/unix/zsyscall_openbsd_amd64.go
diff --git a/unix/zsyscall_openbsd_amd64.s b/unix/zsyscall_openbsd_amd64.s
@@ -158,6 +158,16 @@ TEXT libc_getcwd_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_getcwd_trampoline_addr(SB), RODATA, $8
 DATA	·libc_getcwd_trampoline_addr(SB)/8, $libc_getcwd_trampoline<>(SB)
 
+TEXT libc_getresuid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresuid(SB)
+GLOBL	·libc_getresuid_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getresuid_trampoline_addr(SB)/8, $libc_getresuid_trampoline<>(SB)
+
+TEXT libc_getresgid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresgid(SB)
+GLOBL	·libc_getresgid_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getresgid_trampoline_addr(SB)/8, $libc_getresgid_trampoline<>(SB)
+
 TEXT libc_ioctl_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_ioctl(SB)
 GLOBL	·libc_ioctl_trampoline_addr(SB), RODATA, $8

diff --git a/unix/zsyscall_openbsd_arm.go b/unix/zsyscall_openbsd_arm.go
diff --git a/unix/zsyscall_openbsd_arm.s b/unix/zsyscall_openbsd_arm.s
@@ -158,6 +158,16 @@ TEXT libc_getcwd_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_getcwd_trampoline_addr(SB), RODATA, $4
 DATA	·libc_getcwd_trampoline_addr(SB)/4, $libc_getcwd_trampoline<>(SB)
 
+TEXT libc_getresuid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresuid(SB)
+GLOBL	·libc_getresuid_trampoline_addr(SB), RODATA, $4
+DATA	·libc_getresuid_trampoline_addr(SB)/4, $libc_getresuid_trampoline<>(SB)
+
+TEXT libc_getresgid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresgid(SB)
+GLOBL	·libc_getresgid_trampoline_addr(SB), RODATA, $4
+DATA	·libc_getresgid_trampoline_addr(SB)/4, $libc_getresgid_trampoline<>(SB)
+
 TEXT libc_ioctl_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_ioctl(SB)
 GLOBL	·libc_ioctl_trampoline_addr(SB), RODATA, $4

diff --git a/unix/zsyscall_openbsd_arm64.go b/unix/zsyscall_openbsd_arm64.go
diff --git a/unix/zsyscall_openbsd_arm64.s b/unix/zsyscall_openbsd_arm64.s
@@ -158,6 +158,16 @@ TEXT libc_getcwd_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_getcwd_trampoline_addr(SB), RODATA, $8
 DATA	·libc_getcwd_trampoline_addr(SB)/8, $libc_getcwd_trampoline<>(SB)
 
+TEXT libc_getresuid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresuid(SB)
+GLOBL	·libc_getresuid_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getresuid_trampoline_addr(SB)/8, $libc_getresuid_trampoline<>(SB)
+
+TEXT libc_getresgid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresgid(SB)
+GLOBL	·libc_getresgid_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getresgid_trampoline_addr(SB)/8, $libc_getresgid_trampoline<>(SB)
+
 TEXT libc_ioctl_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_ioctl(SB)
 GLOBL	·libc_ioctl_trampoline_addr(SB), RODATA, $8

diff --git a/unix/zsyscall_openbsd_mips64.go b/unix/zsyscall_openbsd_mips64.go
diff --git a/unix/zsyscall_openbsd_mips64.s b/unix/zsyscall_openbsd_mips64.s
@@ -158,6 +158,16 @@ TEXT libc_getcwd_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_getcwd_trampoline_addr(SB), RODATA, $8
 DATA	·libc_getcwd_trampoline_addr(SB)/8, $libc_getcwd_trampoline<>(SB)
 
+TEXT libc_getresuid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresuid(SB)
+GLOBL	·libc_getresuid_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getresuid_trampoline_addr(SB)/8, $libc_getresuid_trampoline<>(SB)
+
+TEXT libc_getresgid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresgid(SB)
+GLOBL	·libc_getresgid_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getresgid_trampoline_addr(SB)/8, $libc_getresgid_trampoline<>(SB)
+
 TEXT libc_ioctl_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_ioctl(SB)
 GLOBL	·libc_ioctl_trampoline_addr(SB), RODATA, $8

diff --git a/unix/zsyscall_openbsd_ppc64.go b/unix/zsyscall_openbsd_ppc64.go
diff --git a/unix/zsyscall_openbsd_ppc64.s b/unix/zsyscall_openbsd_ppc64.s
@@ -189,6 +189,18 @@ TEXT libc_getcwd_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_getcwd_trampoline_addr(SB), RODATA, $8
 DATA	·libc_getcwd_trampoline_addr(SB)/8, $libc_getcwd_trampoline<>(SB)
 
+TEXT libc_getresuid_trampoline<>(SB),NOSPLIT,$0-0
+	CALL	libc_getresuid(SB)
+	RET
+GLOBL	·libc_getresuid_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getresuid_trampoline_addr(SB)/8, $libc_getresuid_trampoline<>(SB)
+
+TEXT libc_getresgid_trampoline<>(SB),NOSPLIT,$0-0
+	CALL	libc_getresgid(SB)
+	RET
+GLOBL	·libc_getresgid_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getresgid_trampoline_addr(SB)/8, $libc_getresgid_trampoline<>(SB)
+
 TEXT libc_ioctl_trampoline<>(SB),NOSPLIT,$0-0
 	CALL	libc_ioctl(SB)
 	RET

diff --git a/unix/zsyscall_openbsd_riscv64.go b/unix/zsyscall_openbsd_riscv64.go
diff --git a/unix/zsyscall_openbsd_riscv64.s b/unix/zsyscall_openbsd_riscv64.s
@@ -158,6 +158,16 @@ TEXT libc_getcwd_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_getcwd_trampoline_addr(SB), RODATA, $8
 DATA	·libc_getcwd_trampoline_addr(SB)/8, $libc_getcwd_trampoline<>(SB)
 
+TEXT libc_getresuid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresuid(SB)
+GLOBL	·libc_getresuid_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getresuid_trampoline_addr(SB)/8, $libc_getresuid_trampoline<>(SB)
+
+TEXT libc_getresgid_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getresgid(SB)
+GLOBL	·libc_getresgid_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getresgid_trampoline_addr(SB)/8, $libc_getresgid_trampoline<>(SB)
+
 TEXT libc_ioctl_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_ioctl(SB)
 GLOBL	·libc_ioctl_trampoline_addr(SB), RODATA, $8