diff --git a/src/platform/src/linux/mod.rs b/src/platform/src/linux/mod.rs
index bd57335563f91a3a9b7be0ee60c6da8c668de0a5..8915e6fea7ef6bdde20a694c506218870f271c23 100644
--- a/src/platform/src/linux/mod.rs
+++ b/src/platform/src/linux/mod.rs
@@ -116,7 +116,7 @@ pub fn getuid() -> uid_t {
}
pub fn link(path1: *const c_char, path2: *const c_char) -> c_int {
- e(unsafe { syscall!(LINKAT, AT_FDCWD, path1, path2) }) as c_int
+ e(unsafe { syscall!(LINKAT, AT_FDCWD, path1, AT_FDCWD, path2, 0) }) as c_int
}
pub fn mkdir(path: *const c_char, mode: mode_t) -> c_int {
@@ -143,6 +143,22 @@ pub fn rmdir(path: *const c_char) -> c_int {
e(unsafe { syscall!(UNLINKAT, AT_FDCWD, path, AT_REMOVEDIR) }) as c_int
}
+pub fn setpgid(pid: pid_t, pgid: pid_t) -> c_int {
+ e(unsafe { syscall!(SETPGID, pid, pgid) }) as c_int
+}
+
+pub fn setregid(rgid: gid_t, egid: gid_t) -> c_int {
+ e(unsafe { syscall!(SETREGID, rgid, egid) }) as c_int
+}
+
+pub fn setreuid(ruid: uid_t, euid: uid_t) -> c_int {
+ e(unsafe { syscall!(SETREUID, ruid, euid) }) as c_int
+}
+
+pub fn unlink(path: *const c_char) -> c_int {
+ e(unsafe { syscall!(UNLINKAT, AT_FDCWD, path, 0) }) as c_int
+}
+
pub fn write(fildes: c_int, buf: &[u8]) -> ssize_t {
e(unsafe { syscall!(WRITE, fildes, buf.as_ptr(), buf.len()) }) as ssize_t
}
diff --git a/src/platform/src/redox/mod.rs b/src/platform/src/redox/mod.rs
index faa3bc1f82844da1563a7930fb44ad06455689b3..208ccc0332de71bfef275c38d42df729e2c41e08 100644
--- a/src/platform/src/redox/mod.rs
+++ b/src/platform/src/redox/mod.rs
@@ -167,6 +167,23 @@ pub fn rmdir(path: *const c_char) -> c_int {
e(syscall::rmdir(path)) as c_int
}
+pub fn setpgid(pid: pid_t, pgid: pid_t) -> c_int {
+ e(syscall::setpgid(pid as usize, pgid as usize)) as c_int
+}
+
+pub fn setregid(rgid: gid_t, egid: gid_t) -> c_int {
+ e(syscall::setregid(rgid as usize, egid as usize)) as c_int
+}
+
+pub fn setreuid(ruid: uid_t, euid: uid_t) -> c_int {
+ e(syscall::setreuid(ruid as usize, euid as usize)) as c_int
+}
+
+pub fn unlink(path: *const c_char) -> c_int {
+ let path = unsafe { c_str(path) };
+ e(syscall::unlink(path)) as c_int
+}
+
pub fn write(fd: c_int, buf: &[u8]) -> ssize_t {
e(syscall::write(fd as usize, buf)) as ssize_t
}
diff --git a/src/unistd/src/lib.rs b/src/unistd/src/lib.rs
index 07b8a080a1563c668cf2fec1cfa90ee93f8545a2..7915a7e1421b8b790bf5e8b9b8d3a53546e0ef9d 100644
--- a/src/unistd/src/lib.rs
+++ b/src/unistd/src/lib.rs
@@ -226,7 +226,7 @@ pub extern "C" fn getpgid(pid: pid_t) -> pid_t {
#[no_mangle]
pub extern "C" fn getpgrp() -> pid_t {
- unimplemented!();
+ platform::getpgid(platform::getpid())
}
#[no_mangle]
@@ -352,7 +352,7 @@ pub extern "C" fn setgid(gid: gid_t) -> c_int {
#[no_mangle]
pub extern "C" fn setpgid(pid: pid_t, pgid: pid_t) -> c_int {
- unimplemented!();
+ platform::setpgid(pid, pgid)
}
#[no_mangle]
@@ -362,12 +362,12 @@ pub extern "C" fn setpgrp() -> pid_t {
#[no_mangle]
pub extern "C" fn setregid(rgid: gid_t, egid: gid_t) -> c_int {
- unimplemented!();
+ platform::setregid(rgid, egid)
}
#[no_mangle]
pub extern "C" fn setreuid(ruid: uid_t, euid: uid_t) -> c_int {
- unimplemented!();
+ platform::setreuid(ruid, euid)
}
#[no_mangle]
@@ -443,7 +443,7 @@ pub extern "C" fn ualarm(useconds: useconds_t, interval: useconds_t) -> useconds
#[no_mangle]
pub extern "C" fn unlink(path: *const c_char) -> c_int {
- unimplemented!();
+ platform::unlink(path)
}
#[no_mangle]
diff --git a/tests/.gitignore b/tests/.gitignore
index 3790df1fba157b0ce6cf6b0a89de12951f0f2a71..620d8c72440cdb7d870a79e4ce161596092d3106 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -25,6 +25,7 @@
/pipe
/printf
/rmdir
-/unlink
+/setid
/stdlib/strtol
+/unlink
/write
diff --git a/tests/Makefile b/tests/Makefile
index 6b44991cb7addca16c93100ce565fadc61b4f253..6dc43c92e9622e1950c9736c7f85ea608223b976 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -16,11 +16,13 @@ BINS=\
getid \
link \
math \
- rmdir \
pipe \
- printf \
+ printf \
+ rmdir \
+ setid \
sleep \
- stdlib/strtol \
+ stdlib/strtol \
+ unlink \
write
all: $(BINS)
diff --git a/tests/link.c b/tests/link.c
index 3e36df81fbfd72fb472c5245aad3db84c05c5c6d..383575e8ce60e3a7d7fd57b71e2cb9b7d41f7c8e 100644
--- a/tests/link.c
+++ b/tests/link.c
@@ -1,5 +1,6 @@
#include <unistd.h>
int main(int argc, char** argv) {
- int status = link("link.c", "link.out");
+ link("./link.c", "./link.out");
+ perror("link");
}
diff --git a/tests/setid.c b/tests/setid.c
new file mode 100644
index 0000000000000000000000000000000000000000..ce2b42ea93e4ba464faaf9341ea38fd2da171f11
--- /dev/null
+++ b/tests/setid.c
@@ -0,0 +1,26 @@
+/*
+ * The process joins process group 0.
+ */
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+int main( void )
+ {
+ if( setpgid( getpid(), 0 ) == -1 ) {
+ perror( "setpgid" );
+ }
+ printf( "%d belongs to process group %d\n",
+ getpid(), getpgrp() );
+
+ if( setregid(-1, -1) == -1 ) {
+ perror( "setregid" );
+ }
+ printf("%d has egid %d and gid %d\n", getpid(), getegid(), getgid());
+
+ if( setreuid(-1, -1) == -1 ) {
+ perror( "setreuid" );
+ }
+ printf("%d has euid %d and uid %d\n", getpid(), geteuid(), getuid());
+ }
diff --git a/tests/unlink.c b/tests/unlink.c
new file mode 100644
index 0000000000000000000000000000000000000000..0eceae0ac2891215ab2f531157476b6188952444
--- /dev/null
+++ b/tests/unlink.c
@@ -0,0 +1,7 @@
+#include <unistd.h>
+#include <stdio.h>
+
+int main(int argc, char** argv) {
+ link("./unlink.c", "./unlink.out");
+ perror("unlink");
+}