LibC: Add POSIX spec links for unistd APIs
This commit is contained in:
Brian Gianforcaro
Brian Gianforcaro
parent
c6c59653ce
commit
84f74647ac
Notes:
sideshowbarker
2024-07-17 21:30:39 +09:00
Author: https://github.com/bgianfo Commit: https://github.com/SerenityOS/serenity/commit/84f74647ace Pull-request: https://github.com/SerenityOS/serenity/pull/11691 Reviewed-by: https://github.com/Quaker762 ✅
1 changed files with 60 additions and 1 deletions
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@ -38,6 +38,7 @@ static __thread int s_cached_tid = 0;
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static int s_cached_pid = 0;
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html
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int lchown(const char* pathname, uid_t uid, gid_t gid)
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{
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if (!pathname) {
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@ -49,6 +50,7 @@ int lchown(const char* pathname, uid_t uid, gid_t gid)
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html
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int chown(const char* pathname, uid_t uid, gid_t gid)
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{
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if (!pathname) {
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@ -60,6 +62,7 @@ int chown(const char* pathname, uid_t uid, gid_t gid)
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/fchown.html
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int fchown(int fd, uid_t uid, gid_t gid)
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{
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int rc = syscall(SC_fchown, fd, uid, gid);
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@ -77,6 +80,7 @@ int fchownat(int fd, const char* pathname, uid_t uid, gid_t gid, int flags)
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/fork.html
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pid_t fork()
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{
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__pthread_fork_prepare();
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@ -92,16 +96,19 @@ pid_t fork()
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/vfork.html
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pid_t vfork()
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{
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return fork();
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/execv.html
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int execv(const char* path, char* const argv[])
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{
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return execve(path, argv, environ);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/execve.html
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int execve(const char* filename, char* const argv[], char* const envp[])
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{
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size_t arg_count = 0;
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@ -156,6 +163,7 @@ int execvpe(const char* filename, char* const argv[], char* const envp[])
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return -1;
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/execvp.html
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int execvp(const char* filename, char* const argv[])
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{
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int rc = execvpe(filename, argv, environ);
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@ -165,6 +173,7 @@ int execvp(const char* filename, char* const argv[])
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return rc;
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/execl.html
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int execl(const char* filename, const char* arg0, ...)
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{
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Vector<const char*, 16> args;
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@ -183,6 +192,7 @@ int execl(const char* filename, const char* arg0, ...)
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return execve(filename, const_cast<char* const*>(args.data()), environ);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/execle.html
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int execle(char const* filename, char const* arg0, ...)
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{
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Vector<char const*> args;
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@ -203,6 +213,7 @@ int execle(char const* filename, char const* arg0, ...)
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return execve(filename, argv, envp);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/execlp.html
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int execlp(const char* filename, const char* arg0, ...)
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{
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Vector<const char*, 16> args;
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@ -221,26 +232,31 @@ int execlp(const char* filename, const char* arg0, ...)
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return execvpe(filename, const_cast<char* const*>(args.data()), environ);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getuid.html
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uid_t geteuid()
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{
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return syscall(SC_geteuid);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getegid.html
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gid_t getegid()
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{
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return syscall(SC_getegid);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getuid.html
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uid_t getuid()
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{
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return syscall(SC_getuid);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getgid.html
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gid_t getgid()
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{
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return syscall(SC_getgid);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getpid.html
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pid_t getpid()
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{
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int cached_pid = s_cached_pid;
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@ -251,6 +267,7 @@ pid_t getpid()
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return cached_pid;
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getppid.html
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pid_t getppid()
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{
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return syscall(SC_getppid);
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@ -266,12 +283,14 @@ int getresgid(gid_t* rgid, gid_t* egid, gid_t* sgid)
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return syscall(SC_getresgid, rgid, egid, sgid);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getsid.html
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pid_t getsid(pid_t pid)
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{
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int rc = syscall(SC_getsid, pid);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/setsid.html
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pid_t setsid()
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{
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int rc = syscall(SC_setsid);
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@ -287,47 +306,55 @@ pid_t tcgetpgrp(int fd)
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return pgrp;
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/tcgetpgrp.html
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int tcsetpgrp(int fd, pid_t pgid)
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{
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return ioctl(fd, TIOCSPGRP, pgid);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/setpgid.html
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int setpgid(pid_t pid, pid_t pgid)
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{
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int rc = syscall(SC_setpgid, pid, pgid);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getpgid.html
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pid_t getpgid(pid_t pid)
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{
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int rc = syscall(SC_getpgid, pid);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getpgrp.html
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pid_t getpgrp()
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{
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int rc = syscall(SC_getpgrp);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html
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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(SC_read, fd, buf, count);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html
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ssize_t pread(int fd, void* buf, size_t count, off_t offset)
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{
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int rc = syscall(SC_pread, fd, buf, count, &offset);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html
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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(SC_write, fd, buf, count);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html
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ssize_t pwrite(int fd, const void* buf, size_t count, off_t offset)
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{
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// FIXME: This is not thread safe and should be implemented in the kernel instead.
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@ -338,6 +365,7 @@ ssize_t pwrite(int fd, const void* buf, size_t count, off_t offset)
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return nwritten;
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/ttyname_r.html
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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(SC_ttyname, fd, buffer, size);
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@ -345,6 +373,7 @@ int ttyname_r(int fd, char* buffer, size_t size)
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}
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static char ttyname_buf[32];
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/ttyname.html
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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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@ -352,12 +381,14 @@ char* ttyname(int fd)
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return ttyname_buf;
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/close.html
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int close(int fd)
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{
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int rc = syscall(SC_close, fd);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/chdir.html
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int chdir(const char* path)
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{
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if (!path) {
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@ -368,12 +399,14 @@ int chdir(const char* path)
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html
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int fchdir(int fd)
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{
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int rc = syscall(SC_fchdir, fd);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html
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char* getcwd(char* buffer, size_t size)
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{
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if (buffer && size == 0) {
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@ -438,6 +471,7 @@ char* getcwd(char* buffer, size_t size)
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return buffer;
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getwd.html
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char* getwd(char* buf)
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{
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if (buf == nullptr) {
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@ -452,6 +486,7 @@ char* getwd(char* buf)
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return p;
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html
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unsigned int sleep(unsigned int seconds)
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{
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struct timespec ts = { seconds, 0 };
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@ -460,6 +495,7 @@ unsigned int sleep(unsigned int seconds)
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return 0;
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/usleep.html
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int usleep(useconds_t usec)
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{
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struct timespec ts = { (long)(usec / 1000000), (long)(usec % 1000000) * 1000 };
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@ -478,6 +514,7 @@ int sethostname(const char* hostname, ssize_t size)
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html
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ssize_t readlink(const char* path, char* buffer, size_t size)
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{
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Syscall::SC_readlink_params params { { path, strlen(path) }, { buffer, size } };
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@ -486,12 +523,13 @@ ssize_t readlink(const char* path, char* buffer, size_t size)
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__RETURN_WITH_ERRNO(rc, min((size_t)rc, size), -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html
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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(SC_lseek, fd, &offset, whence);
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__RETURN_WITH_ERRNO(rc, offset, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html
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int link(const char* old_path, const char* new_path)
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{
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if (!old_path || !new_path) {
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@ -503,12 +541,14 @@ int link(const char* old_path, const char* new_path)
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/unlink.html
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int unlink(const char* pathname)
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{
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int rc = syscall(SC_unlink, pathname, strlen(pathname));
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/symlink.html
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int symlink(const char* target, const char* linkpath)
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{
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if (!target || !linkpath) {
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@ -520,6 +560,7 @@ int symlink(const char* target, const char* linkpath)
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/rmdir.html
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int rmdir(const char* pathname)
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{
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if (!pathname) {
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@ -530,16 +571,19 @@ int rmdir(const char* pathname)
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/isatty.html
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int isatty(int fd)
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{
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return fcntl(fd, F_ISTTY);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/dup.html
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int dup(int old_fd)
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{
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return fcntl(old_fd, F_DUPFD, 0);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html
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int dup2(int old_fd, int new_fd)
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{
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int rc = syscall(SC_dup2, old_fd, new_fd);
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@ -558,11 +602,13 @@ int getgroups(int size, gid_t list[])
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/pipe.html
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int pipe(int pipefd[2])
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{
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return pipe2(pipefd, 0);
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}
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//
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int pipe2(int pipefd[2], int flags)
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{
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int rc = syscall(SC_pipe, pipefd, flags);
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@ -616,6 +662,7 @@ int setresgid(gid_t rgid, gid_t egid, gid_t sgid)
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/access.html
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int access(const char* pathname, int mode)
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{
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if (!pathname) {
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@ -637,6 +684,7 @@ int mknod(const char* pathname, mode_t mode, dev_t dev)
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/fpathconf.html
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long fpathconf([[maybe_unused]] int fd, int name)
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{
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switch (name) {
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@ -653,6 +701,7 @@ long fpathconf([[maybe_unused]] int fd, int name)
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VERIFY_NOT_REACHED();
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/pathconf.html
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long pathconf([[maybe_unused]] const char* path, int name)
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{
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switch (name) {
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@ -669,12 +718,14 @@ long pathconf([[maybe_unused]] const char* path, int name)
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VERIFY_NOT_REACHED();
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/_exit.html
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void _exit(int status)
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{
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syscall(SC_exit, status);
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VERIFY_NOT_REACHED();
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sync.html
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void sync()
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{
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syscall(SC_sync);
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@ -693,12 +744,14 @@ char* getlogin()
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return const_cast<char*>(getlogin_buffer.characters());
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html
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int ftruncate(int fd, off_t length)
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{
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int rc = syscall(SC_ftruncate, fd, &length);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/truncate.html
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int truncate(const char* path, off_t length)
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{
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int fd = open(path, O_RDWR | O_CREAT, 0666);
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@ -728,6 +781,7 @@ int sysbeep()
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html
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int fsync(int fd)
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{
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int rc = syscall(SC_fsync, fd);
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||||
|
|
@ -794,28 +848,33 @@ int unveil(const char* path, const char* permissions)
|
|||
__RETURN_WITH_ERRNO(rc, rc, -1);
|
||||
}
|
||||
|
||||
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getpass.html
|
||||
char* getpass(const char* prompt)
|
||||
{
|
||||
dbgln("FIXME: getpass('{}')", prompt);
|
||||
TODO();
|
||||
}
|
||||
|
||||
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/sysconf.html
|
||||
long sysconf(int name)
|
||||
{
|
||||
int rc = syscall(SC_sysconf, name);
|
||||
__RETURN_WITH_ERRNO(rc, rc, -1);
|
||||
}
|
||||
|
||||
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/getpagesize.html
|
||||
int getpagesize()
|
||||
{
|
||||
return PAGE_SIZE;
|
||||
}
|
||||
|
||||
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/pause.html
|
||||
int pause()
|
||||
{
|
||||
return select(0, nullptr, nullptr, nullptr, nullptr);
|
||||
}
|
||||
|
||||
// https://pubs.opengroup.org/onlinepubs/9699919799/functions/chroot.html
|
||||
int chroot(const char* path)
|
||||
{
|
||||
dbgln("FIXME: chroot(\"{}\")", path);
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue