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authorRoland McGrath <roland@gnu.org>2002-04-30 22:00:59 +0000
committerRoland McGrath <roland@gnu.org>2002-04-30 22:00:59 +0000
commita8c017767721fec8fd4ee53c1937e31e35dfac08 (patch)
tree11c43b6158f98ebcce0ab0b5555faa3a35d43187 /sysdeps/posix/pipestream.c
parent8543f93de2a52f1e314051aa20f7394a7c13366f (diff)
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2002-04-30 Roland McGrath <roland@frob.com>
Removed old GNU stdio implementation; GNU libio is now the only option. * configure.in: Removed --enable-libio option and @stdio@ subst var. Define USE_IN_LIBIO unconditionally. * configure: Regenerated. * Makeconfig (stdio): Set to libio by default. * config.make.in (stdio): Variable removed. * sysdeps/unix/sysv/linux/configure.in: Don't set $stdio. * sysdeps/unix/sysv/linux/configure: Regenerated. * sysdeps/mach/hurd/configure.in: Don't test $stdio. * sysdeps/mach/hurd/configure: Regenerated. * stdio/.cvsignore: File removed. * stdio/Makefile: File removed. * stdio/Versions: File removed. * stdio/__fbufsize.c: File removed. * stdio/__flbf.c: File removed. * stdio/__fpending.c: File removed. * stdio/__fpurge.c: File removed. * stdio/__freadable.c: File removed. * stdio/__freading.c: File removed. * stdio/__fsetlocking.c: File removed. * stdio/__fwritable.c: File removed. * stdio/__fwriting.c: File removed. * stdio/clearerr.c: File removed. * stdio/fclose.c: File removed. * stdio/fcloseall.c: File removed. * stdio/feof.c: File removed. * stdio/ferror.c: File removed. * stdio/fflush.c: File removed. * stdio/fgetc.c: File removed. * stdio/fgetpos.c: File removed. * stdio/fgets.c: File removed. * stdio/fileno.c: File removed. * stdio/fmemopen.c: File removed. * stdio/fopen.c: File removed. * stdio/fopncook.c: File removed. * stdio/fputc.c: File removed. * stdio/fputs.c: File removed. * stdio/fread.c: File removed. * stdio/freopen.c: File removed. * stdio/fseek.c: File removed. * stdio/fsetpos.c: File removed. * stdio/ftell.c: File removed. * stdio/fwrite.c: File removed. * stdio/getc.c: File removed. * stdio/getchar.c: File removed. * stdio/getdelim.c: File removed. * stdio/gets.c: File removed. * stdio/glue.c: File removed. * stdio/internals.c: File removed. * stdio/linewrap.c: File removed. * stdio/linewrap.h: File removed. * stdio/memstream.c: File removed. * stdio/newstream.c: File removed. * stdio/obstream.c: File removed. * stdio/putc.c: File removed. * stdio/putchar.c: File removed. * stdio/puts.c: File removed. * stdio/rewind.c: File removed. * stdio/setbuf.c: File removed. * stdio/setbuffer.c: File removed. * stdio/setlinebuf.c: File removed. * stdio/setvbuf.c: File removed. * stdio/stdio.h: File removed. * stdio/ungetc.c: File removed. * stdio/vasprintf.c: File removed. * stdio/vscanf.c: File removed. * stdio/vsnprintf.c: File removed. * stdio/vsprintf.c: File removed. * stdio/vsscanf.c: File removed. * sysdeps/generic/defs.c: File removed. * sysdeps/generic/fdopen.c: File removed. * sysdeps/generic/pipestream.c: File removed. * sysdeps/generic/stdio_init.c: File removed. * sysdeps/generic/sysd-stdio.c: File removed. * sysdeps/generic/vdprintf.c: File removed. * sysdeps/mach/hurd/defs.c: File removed. * sysdeps/mach/hurd/fdopen.c: File removed. * sysdeps/mach/hurd/pipestream.c: File removed. * sysdeps/mach/hurd/stdio_init.c: File removed. * sysdeps/mach/hurd/sysd-stdio.c: File removed. * sysdeps/mach/hurd/vdprintf.c: File removed. * sysdeps/posix/defs.c: File removed. * sysdeps/posix/fdopen.c: File removed. * sysdeps/posix/pipestream.c: File removed. * sysdeps/posix/stdio_init.c: File removed. * sysdeps/posix/vdprintf.c: File removed. * sysdeps/unix/pipestream.c: File removed. * sysdeps/unix/sysv/sysd-stdio.c: File removed. * sysdeps/unix/sysv/sco3.2.4/pipestream.c: File removed. * sysdeps/unix/sysv/sysv4/pipestream.c: File removed.
Diffstat (limited to 'sysdeps/posix/pipestream.c')
-rw-r--r--sysdeps/posix/pipestream.c221
1 files changed, 0 insertions, 221 deletions
diff --git a/sysdeps/posix/pipestream.c b/sysdeps/posix/pipestream.c
deleted file mode 100644
index 94e09f1b9d..0000000000
--- a/sysdeps/posix/pipestream.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/* Copyright (C) 1991, 1992, 1993, 1996, 1997 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU 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 2.1 of the License, or (at your option) any later version.
-
- The GNU 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 GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <errno.h>
-#include <stddef.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#define SH_PATH "/bin/sh" /* Shell to run. */
-#define SH_NAME "sh" /* Name to give it. */
-
-/* Structure describing a popen child. */
-struct child
- {
- pid_t pid; /* PID of the child. */
- __ptr_t cookie; /* Original cookie from fdopen. */
- __io_functions funcs; /* Original functions from fdopen. */
- };
-
-/* io_functions for pipe streams.
- These all simply call the corresponding
- original function with the original cookie. */
-
-#define FUNC(type, name, proto, args) \
- static type __CONCAT(child_,name) proto \
- { \
- struct child *c = (struct child *) cookie; \
- { \
- __ptr_t cookie = c->cookie; \
- return (*c->funcs.__CONCAT(__,name)) args; \
- } \
- }
-
-FUNC (int, read, (void *cookie, char *buf, size_t n), (cookie, buf, n))
-FUNC (int, write, (void *cookie, const char *buf, size_t n), (cookie, buf, n))
-FUNC (int, seek, (void *cookie, fpos_t *pos, int whence),
- (cookie, pos, whence))
-FUNC (int, close, (void *cookie), (cookie))
-FUNC (int, fileno, (void *cookie), (cookie))
-
-static const __io_functions child_funcs
- = { child_read, child_write, child_seek, child_close, child_fileno };
-
-/* Open a new stream that is a one-way pipe to a
- child process running the given shell command. */
-FILE *
-popen (command, mode)
- const char *command;
- const char *mode;
-{
- pid_t pid;
- int pipedes[2];
- FILE *stream;
- struct child *child;
-
- if (command == NULL || mode == NULL || (*mode != 'r' && *mode != 'w'))
- {
- __set_errno (EINVAL);
- return NULL;
- }
-
- /* Create the pipe. */
- if (pipe (pipedes) < 0)
- return NULL;
-
- /* Fork off the child. */
- pid = __vfork ();
- if (pid == (pid_t) -1)
- {
- /* The fork failed. */
- (void) close (pipedes[0]);
- (void) close (pipedes[1]);
- return NULL;
- }
- else if (pid == (pid_t) 0)
- {
- /* We are the child side. Make the write side of
- the pipe be stdin or the read side be stdout. */
-
- const char *new_argv[4];
-
- if ((*mode == 'w' ? dup2(pipedes[STDIN_FILENO], STDIN_FILENO) :
- dup2 (pipedes[STDOUT_FILENO], STDOUT_FILENO)) < 0)
- _exit (127);
-
- /* Close the pipe descriptors. */
- (void) close (pipedes[STDIN_FILENO]);
- (void) close (pipedes[STDOUT_FILENO]);
-
- /* Exec the shell. */
- new_argv[0] = SH_NAME;
- new_argv[1] = "-c";
- new_argv[2] = command;
- new_argv[3] = NULL;
- (void) execve (SH_PATH, (char *const *) new_argv, environ);
- /* Die if it failed. */
- _exit (127);
- }
-
- /* We are the parent side. */
-
- /* Close the irrelevant side of the pipe and open the relevant side as a
- new stream. Mark our side of the pipe to close on exec, so new children
- won't see it. */
- if (*mode == 'r')
- {
- (void) close (pipedes[STDOUT_FILENO]);
- (void) fcntl (pipedes[STDIN_FILENO], F_SETFD, FD_CLOEXEC);
- stream = fdopen (pipedes[STDIN_FILENO], mode);
- }
- else
- {
- (void) close (pipedes[STDIN_FILENO]);
- (void) fcntl (pipedes[STDOUT_FILENO], F_SETFD, FD_CLOEXEC);
- stream = fdopen (pipedes[STDOUT_FILENO], mode);
- }
-
- if (stream == NULL)
- goto error;
-
- child = (struct child *) malloc (sizeof (struct child));
- if (child == NULL)
- goto error;
-
- {
- /* Make sure STREAM has its functions set before
- we try to squirrel them away in CHILD. */
- extern void __stdio_check_funcs __P ((FILE *));
- __stdio_check_funcs (stream);
- }
-
- child->pid = pid;
- child->cookie = stream->__cookie;
- child->funcs = stream->__io_funcs;
- stream->__cookie = (void *) child;
- stream->__io_funcs = child_funcs;
- stream->__ispipe = 1;
- return stream;
-
- error:
- {
- /* The stream couldn't be opened or the child structure couldn't be
- allocated. Kill the child and close the other side of the pipe. */
- int save = errno;
- (void) kill (pid, SIGKILL);
- if (stream == NULL)
- (void) close (pipedes[*mode == 'r' ? STDOUT_FILENO : STDIN_FILENO]);
- else
- (void) fclose (stream);
-#ifndef NO_WAITPID
- (void) waitpid (pid, (int *) NULL, 0);
-#else
- {
- pid_t dead;
- do
- dead = wait ((int *) NULL);
- while (dead > 0 && dead != pid);
- }
-#endif
- __set_errno (save);
- return NULL;
- }
-}
-
-/* Close a stream opened by popen and return its status.
- Returns -1 if the stream was not opened by popen. */
-int
-pclose (stream)
- register FILE *stream;
-{
- struct child *c;
- pid_t pid, dead;
- int status;
-
- if (!__validfp (stream) || !stream->__ispipe)
- {
- __set_errno (EINVAL);
- return -1;
- }
-
- c = (struct child *) stream->__cookie;
- pid = c->pid;
- stream->__cookie = c->cookie;
- stream->__io_funcs = c->funcs;
- free ((void *) c);
- stream->__ispipe = 0;
- if (fclose (stream))
- return -1;
-
-#ifndef NO_WAITPID
- dead = waitpid (pid, &status, 0);
-#else
- do
- dead = wait (&status);
- while (dead > 0 && dead != pid);
-#endif
- if (dead != pid)
- status = -1;
-
- return status;
-}