9be33485e2
* lib/linux/gnu.c (readlink, symlink): New function. * include/unistd.h (readlink, symlink): Declare. * include/linux/x86/syscall.h (SYS_readlink, SYS_symlink): New macro. * include/linux/x86_64/syscall.h (SYS_symlink, SYS_readlink): New macro.
98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* GNU Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MES_UNISTD_H
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#define __MES_UNISTD_H 1
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#if SYSTEM_LIBC
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#undef __MES_UNISTD_H
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#include_next <unistd.h>
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#else // ! SYSTEM_LIBC
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#if defined (BOOTSTRAP_WITH_POSIX)
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#define _POSIX_VERSION 199009L
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#endif
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#include <sys/types.h>
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#ifndef NULL
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#define NULL 0
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#endif
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#ifndef STDIN_FILENO
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#define STDIN_FILENO 0
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#define STDOUT_FILENO 1
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#define STDERR_FILENO 2
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#endif // STDIN_FILENO
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#ifndef STDIN_FILE_NO
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#define STDIN_FILE_NO 0
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#define STDOUT_FILE_NO 1
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#define STDERR_FILE_NO 2
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#endif // STDIN_FILE_NO
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#ifndef R_OK
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#define F_OK 0
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#define X_OK 1
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#define W_OK 2
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#define R_OK 4
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#endif
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int access (char const *s, int mode);
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unsigned int alarm (unsigned int seconds);
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int close (int fd);
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int execv (char const *file_name, char *const argv[]);
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int execl (char const *file_name, char const *arg, ...);
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int execlp (char const *file_name, char const *arg, ...);
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int execve (char const *file, char *const argv[], char *const env[]);
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int execvp (char const *file, char *const argv[]);
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int fork (void);
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int fsync (int filedes);
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char *getcwd (char *buf, size_t size);
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uid_t getuid (void);
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gid_t getgid (void);
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int setgid (gid_t newgid);
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int setuid (uid_t newuid);
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uid_t geteuid (void);
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gid_t getegid (void);
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pid_t getpid (void);
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pid_t getppid (void);
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int isatty (int fd);
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int link (char const *old_name, char const *new_name);
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off_t lseek (int fd, off_t offset, int whence);
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ssize_t read (int fd, void *buffer, size_t size);
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ssize_t readlink (char const *file_name, char *buffer, size_t size);
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#if __SBRK_CHAR_PTRDIFF
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/* xmalloc in binutils <= 2.10.1 uses this old prototype */
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char *sbrk (ptrdiff_t delta);
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#else
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void *sbrk (intptr_t delta);
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#endif
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int symlink (char const *old_name, char const *new_name);
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int unlink (char const *file_name);
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ssize_t write (int filedes, void const *buffer, size_t size);
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pid_t getpid (void);
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#endif // ! SYSTEM_LIBC
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#endif // __MES_UNISTD_H
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