mirror of
https://github.com/RGBCube/serenity
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819ce91395
I ran out of steam writing library routines and imported two BSD-licensed libc routines: sscanf() and getopt(). I will most likely rewrite them sooner or later. For now I just wanted to see figlet running.
115 lines
2.7 KiB
C++
115 lines
2.7 KiB
C++
#include "unistd.h"
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#include "string.h"
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#include "errno.h"
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#include <Kernel/Syscall.h>
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extern "C" {
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uid_t getuid()
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{
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return Syscall::invoke(Syscall::PosixGetuid);
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}
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gid_t getgid()
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{
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return Syscall::invoke(Syscall::PosixGetgid);
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}
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pid_t getpid()
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{
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return Syscall::invoke(Syscall::PosixGetpid);
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}
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int open(const char* path, int options)
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{
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int rc = Syscall::invoke(Syscall::PosixOpen, (dword)path, (dword)options);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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ssize_t read(int fd, void* buf, size_t count)
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{
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int rc = Syscall::invoke(Syscall::PosixRead, (dword)fd, (dword)buf, (dword)count);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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ssize_t write(int fd, const void* buf, size_t count)
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{
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int rc = Syscall::invoke(Syscall::PosixWrite, (dword)fd, (dword)buf, (dword)count);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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int ttyname_r(int fd, char* buffer, size_t size)
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{
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int rc = Syscall::invoke(Syscall::PosixTtynameR, (dword)fd, (dword)buffer, (dword)size);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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static char ttyname_buf[32];
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char* ttyname(int fd)
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{
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if (ttyname_r(fd, ttyname_buf, sizeof(ttyname_buf)) < 0)
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return nullptr;
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return ttyname_buf;
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}
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int close(int fd)
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{
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int rc = Syscall::invoke(Syscall::PosixClose, fd);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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pid_t waitpid(pid_t waitee, int* wstatus, int options)
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{
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int rc = Syscall::invoke(Syscall::PosixWaitpid, waitee, (dword)wstatus);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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int lstat(const char* path, struct stat* statbuf)
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{
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int rc = Syscall::invoke(Syscall::PosixLstat, (dword)path, (dword)statbuf);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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int stat(const char* path, struct stat* statbuf)
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{
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int rc = Syscall::invoke(Syscall::PosixStat, (dword)path, (dword)statbuf);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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int chdir(const char* path)
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{
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int rc = Syscall::invoke(Syscall::PosixChdir, (dword)path);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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char* getcwd(char* buffer, size_t size)
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{
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int rc = Syscall::invoke(Syscall::PosixGetcwd, (dword)buffer, (dword)size);
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__RETURN_WITH_ERRNO(rc, buffer, nullptr);
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}
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int sleep(unsigned seconds)
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{
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return Syscall::invoke(Syscall::Sleep, (dword)seconds);
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}
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int gethostname(char* buffer, size_t size)
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{
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int rc = Syscall::invoke(Syscall::PosixGethostname, (dword)buffer, (dword)size);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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ssize_t readlink(const char* path, char* buffer, size_t size)
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{
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int rc = Syscall::invoke(Syscall::PosixReadlink, (dword)path, (dword)buffer, (dword)size);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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off_t lseek(int fd, off_t offset, int whence)
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{
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int rc = Syscall::invoke(Syscall::PosixLseek, (dword)fd, (dword)offset, (dword)whence);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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}
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