diff --git a/libc/Makefile b/libc/Makefile
index 53ce1d93..ff29daca 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -481,6 +481,8 @@ unistd/setpgid.o \
unistd/setuid.o \
unistd/sfork.o \
unistd/sleep.o \
+unistd/symlinkat.o \
+unistd/symlink.o \
unistd/sysconf.o \
unistd/tcgetpgrp.o \
unistd/tcsetpgrp.o \
diff --git a/libc/include/unistd.h b/libc/include/unistd.h
index 7c56dae3..bf33a367 100644
--- a/libc/include/unistd.h
+++ b/libc/include/unistd.h
@@ -285,8 +285,6 @@ int setregid(gid_t, gid_t);
int setreuid(uid_t, uid_t);
pid_t setsid(void);
void swab(const void* __restrict, void* __restrict, ssize_t);
-int symlink(const char*, const char*);
-int symlinkat(const char*, int, const char*);
void sync(void);
int ttyname_r(int, char*, size_t);
#endif
@@ -349,6 +347,8 @@ int setgid(gid_t);
int setpgid(pid_t, pid_t);
int setuid(uid_t);
unsigned sleep(unsigned);
+int symlink(const char*, const char*);
+int symlinkat(const char*, int, const char*);
long sysconf(int);
pid_t tcgetpgrp(int);
int tcsetpgrp(int, pid_t);
diff --git a/libc/unistd/symlink.cpp b/libc/unistd/symlink.cpp
new file mode 100644
index 00000000..e5becae6
--- /dev/null
+++ b/libc/unistd/symlink.cpp
@@ -0,0 +1,31 @@
+/*******************************************************************************
+
+ Copyright(C) Jonas 'Sortie' Termansen 2013.
+
+ This file is part of the Sortix C Library.
+
+ The Sortix C Library is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or (at your
+ option) any later version.
+
+ The Sortix C Library is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with the Sortix C Library. If not, see .
+
+ unistd/symlink.cpp
+ Create a symbolic link.
+
+*******************************************************************************/
+
+#include
+#include
+
+extern "C" int symlink(const char* oldpath, const char* newpath)
+{
+ return symlinkat(oldpath, AT_FDCWD, newpath);
+}
diff --git a/libc/unistd/symlinkat.cpp b/libc/unistd/symlinkat.cpp
new file mode 100644
index 00000000..dc4e698b
--- /dev/null
+++ b/libc/unistd/symlinkat.cpp
@@ -0,0 +1,35 @@
+/*******************************************************************************
+
+ Copyright(C) Jonas 'Sortie' Termansen 2013.
+
+ This file is part of the Sortix C Library.
+
+ The Sortix C Library is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or (at your
+ option) any later version.
+
+ The Sortix C Library is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with the Sortix C Library. If not, see .
+
+ unistd/symlinkat.cpp
+ Create a symbolic link.
+
+*******************************************************************************/
+
+#include
+
+#include
+#include
+
+DEFN_SYSCALL3(int, sys_symlinkat, SYSCALL_LINKAT, const char*, int, const char*);
+
+extern "C" int symlinkat(const char* oldpath, int newdirfd, const char* newpath)
+{
+ return sys_symlinkat(oldpath, newdirfd, newpath);
+}
diff --git a/sortix/include/sortix/syscallnum.h b/sortix/include/sortix/syscallnum.h
index 6c8cc0cf..62968034 100644
--- a/sortix/include/sortix/syscallnum.h
+++ b/sortix/include/sortix/syscallnum.h
@@ -144,6 +144,7 @@
#define SYSCALL_SETPRIORITY 120
#define SYSCALL_PRLIMIT 121
#define SYSCALL_DUP3 122
-#define SYSCALL_MAX_NUM 123 /* index of highest constant + 1 */
+#define SYSCALL_SYMLINKAT 123
+#define SYSCALL_MAX_NUM 124 /* index of highest constant + 1 */
#endif
diff --git a/sortix/io.cpp b/sortix/io.cpp
index 5eb947f7..07e0e052 100644
--- a/sortix/io.cpp
+++ b/sortix/io.cpp
@@ -595,6 +595,36 @@ static int sys_link(const char* oldpath, const char* newpath)
return sys_linkat(AT_FDCWD, oldpath, AT_FDCWD, newpath, 0);
}
+static int sys_symlinkat(const char* oldpath, int newdirfd, const char* newpath)
+{
+ ioctx_t ctx; SetupUserIOCtx(&ctx);
+
+ char* newpathcopy = GetStringFromUser(newpath);
+ if ( !newpathcopy )
+ return -1;
+ const char* newrelpath = newpathcopy;
+ Ref newfrom(PrepareLookup(&newrelpath, newdirfd));
+ if ( !newfrom ) { delete[] newpathcopy; return -1; }
+
+ char* final_elem;
+ Ref dir = OpenDirContainingPath(&ctx, newfrom, newpathcopy,
+ &final_elem);
+ delete[] newpathcopy;
+ if ( !dir )
+ return -1;
+
+ char* oldpathcopy = GetStringFromUser(oldpath);
+ if ( !oldpathcopy ) { delete[] final_elem; return -1; }
+
+ int ret = (errno = EPERM, -1);
+
+ delete[] oldpathcopy;
+ delete[] final_elem;
+
+ return ret;
+}
+
+
static int sys_settermmode(int fd, unsigned mode)
{
Ref desc = CurrentProcess()->GetDescriptor(fd);
@@ -1019,6 +1049,7 @@ void Init()
Syscall::Register(SYSCALL_SEND, (void*) sys_send);
Syscall::Register(SYSCALL_SETTERMMODE, (void*) sys_settermmode);
Syscall::Register(SYSCALL_STAT, (void*) sys_stat);
+ Syscall::Register(SYSCALL_SYMLINKAT, (void*) sys_symlinkat);
Syscall::Register(SYSCALL_TCGETPGRP, (void*) sys_tcgetpgrp);
Syscall::Register(SYSCALL_TCGETWINSIZE, (void*) sys_tcgetwinsize);
Syscall::Register(SYSCALL_TCSETPGRP, (void*) sys_tcsetpgrp);