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-rw-r--r--libio/iopopen.c110
1 files changed, 57 insertions, 53 deletions
diff --git a/libio/iopopen.c b/libio/iopopen.c
index 0768321281..434008609f 100644
--- a/libio/iopopen.c
+++ b/libio/iopopen.c
@@ -1,28 +1,28 @@
-/*
-Copyright (C) 1993 Free Software Foundation
-
-This file is part of the GNU IO Library. This library is free
-software; you can redistribute it and/or modify it under the
-terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-This 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 General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this library; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-As a special exception, if you link this library with files
-compiled with a GNU compiler to produce an executable, this does not cause
-the resulting executable to be covered by the GNU General Public License.
-This exception does not however invalidate any other reasons why
-the executable file might be covered by the GNU General Public License. */
-
-/* written by Per Bothner (bothner@cygnus.com) */
+/* Copyright (C) 1993, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU IO Library.
+ Written by Per Bothner <bothner@cygnus.com>.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this library; see the file COPYING. If not, write to
+ the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, if you link this library with files
+ compiled with a GNU compiler to produce an executable, this does
+ not cause the resulting executable to be covered by the GNU General
+ Public License. This exception does not however invalidate any
+ other reasons why the executable file might be covered by the GNU
+ General Public License. */
#ifndef _POSIX_SOURCE
# define _POSIX_SOURCE
@@ -80,17 +80,19 @@ typedef struct _IO_proc_file _IO_proc_file;
static struct _IO_proc_file *proc_file_chain = NULL;
_IO_FILE *
-DEFUN(_IO_proc_open, (fp, command, mode),
- _IO_FILE* fp AND const char *command AND const char *mode)
+_IO_proc_open (fp, command, mode)
+ _IO_FILE *fp;
+ const char *command;
+ const char *mode;
{
#if _IO_HAVE_SYS_WAIT
volatile int read_or_write;
volatile int parent_end, child_end;
int pipe_fds[2];
_IO_pid_t child_pid;
- if (_IO_file_is_open(fp))
+ if (_IO_file_is_open (fp))
return NULL;
- if (_IO_pipe(pipe_fds) < 0)
+ if (_IO_pipe (pipe_fds) < 0)
return NULL;
if (mode[0] == 'r')
{
@@ -104,17 +106,17 @@ DEFUN(_IO_proc_open, (fp, command, mode),
child_end = pipe_fds[0];
read_or_write = _IO_NO_READS;
}
- ((_IO_proc_file*)fp)->pid = child_pid = _IO_fork();
+ ((_IO_proc_file *) fp)->pid = child_pid = _IO_fork ();
if (child_pid == 0)
{
int child_std_end = mode[0] == 'r' ? 1 : 0;
- _IO_close(parent_end);
+ _IO_close (parent_end);
if (child_end != child_std_end)
{
- _IO_dup2(child_end, child_std_end);
- _IO_close(child_end);
+ _IO_dup2 (child_end, child_std_end);
+ _IO_close (child_end);
}
- /* Posix.2: "popen() shall ensure that any streams from previous
+ /* POSIX.2: "popen() shall ensure that any streams from previous
popen() calls that remain open in the parent process are closed
in the new child process." */
while (proc_file_chain)
@@ -123,20 +125,20 @@ DEFUN(_IO_proc_open, (fp, command, mode),
proc_file_chain = proc_file_chain->next;
}
- _IO_execl("/bin/sh", "sh", "-c", command, (char *) 0);
- _IO__exit(127);
+ _IO_execl ("/bin/sh", "sh", "-c", command, (char *) 0);
+ _IO__exit (127);
}
- _IO_close(child_end);
+ _IO_close (child_end);
if (child_pid < 0)
{
- _IO_close(parent_end);
+ _IO_close (parent_end);
return NULL;
}
- _IO_fileno(fp) = parent_end;
+ _IO_fileno (fp) = parent_end;
/* Link into proc_file_chain. */
- ((_IO_proc_file*)fp)->next = proc_file_chain;
- proc_file_chain = (_IO_proc_file*)fp;
+ ((_IO_proc_file *) fp)->next = proc_file_chain;
+ proc_file_chain = (_IO_proc_file *) fp;
_IO_mask_flags (fp, read_or_write, _IO_NO_READS|_IO_NO_WRITES);
return fp;
@@ -146,8 +148,9 @@ DEFUN(_IO_proc_open, (fp, command, mode),
}
_IO_FILE *
-DEFUN(_IO_popen, (command, mode),
- const char *command AND const char *mode)
+_IO_popen (command, mode)
+ const char *command;
+ const char *mode;
{
struct locked_FILE
{
@@ -165,11 +168,11 @@ DEFUN(_IO_popen, (command, mode),
new_f->fpx.file.file._lock = &new_f->lock;
#endif
fp = (_IO_FILE*)&new_f->fpx;
- _IO_init(fp, 0);
- _IO_JUMPS(fp) = &_IO_proc_jumps;
- _IO_file_init(fp);
+ _IO_init (fp, 0);
+ _IO_JUMPS (fp) = &_IO_proc_jumps;
+ _IO_file_init (fp);
#if !_IO_UNIFIED_JUMPTABLES
- ((struct _IO_FILE_plus*)fp)->vtable = NULL;
+ ((struct _IO_FILE_plus *) fp)->vtable = NULL;
#endif
if (_IO_proc_open (fp, command, mode) != NULL)
return fp;
@@ -182,8 +185,8 @@ strong_alias (_IO_popen, popen);
#endif
int
-DEFUN(_IO_proc_close, (fp),
- _IO_FILE *fp)
+_IO_proc_close (fp)
+ _IO_FILE *fp;
{
/* This is not name-space clean. FIXME! */
#if _IO_HAVE_SYS_WAIT
@@ -195,7 +198,7 @@ DEFUN(_IO_proc_close, (fp),
/* Unlink from proc_file_chain. */
for ( ; *ptr != NULL; ptr = &(*ptr)->next)
{
- if (*ptr == (_IO_proc_file*)fp)
+ if (*ptr == (_IO_proc_file *) fp)
{
*ptr = (*ptr)->next;
status = 0;
@@ -203,7 +206,7 @@ DEFUN(_IO_proc_close, (fp),
}
}
- if (status < 0 || _IO_close(_IO_fileno(fp)) < 0)
+ if (status < 0 || _IO_close (_IO_fileno(fp)) < 0)
return -1;
/* POSIX.2 Rationale: "Some historical implementations either block
or ignore the signals SIGINT, SIGQUIT, and SIGHUP while waiting
@@ -211,8 +214,9 @@ DEFUN(_IO_proc_close, (fp),
described in POSIX.2, such implementations are not conforming." */
do
{
- wait_pid = _IO_waitpid (((_IO_proc_file*)fp)->pid, &wstatus, 0);
- } while (wait_pid == -1 && errno == EINTR);
+ wait_pid = _IO_waitpid (((_IO_proc_file *) fp)->pid, &wstatus, 0);
+ }
+ while (wait_pid == -1 && errno == EINTR);
if (wait_pid == -1)
return -1;
return wstatus;
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-27 22:06:49 +0000