mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-30 21:44:19 +08:00
1b17e76665
2000-07-09 Elena Zannoni <ezannoni@kwikemart.cygnus.com>
* Import of readline 4.1.
Locally modified files: Makefile.in, configure.in, configure
(regenerated), config.h.in (regenerated), readline.h, rltty.c,
shell.c signals.c.
Locally added files: acconfig.h, config/*, config.h.bot,
cross-build/*, doc/inc-hit.texinfo.
New files: USAGE, rlprivate.h, rlshell.h, xmalloc.h.
examples:
2000-07-09 Elena Zannoni <ezannoni@kwikemart.cygnus.com>
* Import of readline 4.1.
New files: excallback.c, rlfe.c.
doc:
2000-07-09 Elena Zannoni <ezannoni@kwikemart.cygnus.com>
* Import of readline 4.1.
Regenerated inc-hist.texinfo as copy of hsuser.texinfo, for
inclusion in the gdb manual.
New file: rluserman.texinfo
177 lines
3.6 KiB
C
177 lines
3.6 KiB
C
/* shell.c -- readline utility functions that are normally provided by
|
|
bash when readline is linked as part of the shell. */
|
|
|
|
/* Copyright (C) 1997 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU Readline Library, a library for
|
|
reading lines of text with interactive input and history editing.
|
|
|
|
The GNU Readline 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.
|
|
|
|
The GNU Readline 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.
|
|
|
|
The GNU General Public License is often shipped with GNU software, and
|
|
is generally kept in a file called COPYING or LICENSE. If you do not
|
|
have a copy of the license, write to the Free Software Foundation,
|
|
59 Temple Place, Suite 330, Boston, MA 02111 USA. */
|
|
#define READLINE_LIBRARY
|
|
|
|
#if defined (HAVE_CONFIG_H)
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
#include <stdio.h>
|
|
|
|
#if defined (HAVE_UNISTD_H)
|
|
# include <unistd.h>
|
|
#endif /* HAVE_UNISTD_H */
|
|
|
|
#if defined (HAVE_STDLIB_H)
|
|
# include <stdlib.h>
|
|
#else
|
|
# include "ansi_stdlib.h"
|
|
#endif /* HAVE_STDLIB_H */
|
|
|
|
#if defined (HAVE_STRING_H)
|
|
# include <string.h>
|
|
#else
|
|
# include <strings.h>
|
|
#endif /* !HAVE_STRING_H */
|
|
|
|
#include <fcntl.h>
|
|
#include <pwd.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include "rlshell.h"
|
|
#include "xmalloc.h"
|
|
|
|
#if !defined (HAVE_GETPW_DECLS)
|
|
extern struct passwd *getpwuid ();
|
|
#endif /* !HAVE_GETPW_DECLS */
|
|
|
|
#ifndef NULL
|
|
# define NULL 0
|
|
#endif
|
|
|
|
/* All of these functions are resolved from bash if we are linking readline
|
|
as part of bash. */
|
|
|
|
/* Does shell-like quoting using single quotes. */
|
|
char *
|
|
single_quote (string)
|
|
char *string;
|
|
{
|
|
register int c;
|
|
char *result, *r, *s;
|
|
|
|
result = (char *)xmalloc (3 + (4 * strlen (string)));
|
|
r = result;
|
|
*r++ = '\'';
|
|
|
|
for (s = string; s && (c = *s); s++)
|
|
{
|
|
*r++ = c;
|
|
|
|
if (c == '\'')
|
|
{
|
|
*r++ = '\\'; /* insert escaped single quote */
|
|
*r++ = '\'';
|
|
*r++ = '\''; /* start new quoted string */
|
|
}
|
|
}
|
|
|
|
*r++ = '\'';
|
|
*r = '\0';
|
|
|
|
return (result);
|
|
}
|
|
|
|
/* Set the environment variables LINES and COLUMNS to lines and cols,
|
|
respectively. */
|
|
void
|
|
set_lines_and_columns (lines, cols)
|
|
int lines, cols;
|
|
{
|
|
char *b;
|
|
|
|
#if defined (HAVE_PUTENV)
|
|
b = xmalloc (24);
|
|
sprintf (b, "LINES=%d", lines);
|
|
putenv (b);
|
|
b = xmalloc (24);
|
|
sprintf (b, "COLUMNS=%d", cols);
|
|
putenv (b);
|
|
#else /* !HAVE_PUTENV */
|
|
# if defined (HAVE_SETENV)
|
|
b = xmalloc (8);
|
|
sprintf (b, "%d", lines);
|
|
setenv ("LINES", b, 1);
|
|
b = xmalloc (8);
|
|
sprintf (b, "%d", cols);
|
|
setenv ("COLUMNS", b, 1);
|
|
# endif /* HAVE_SETENV */
|
|
#endif /* !HAVE_PUTENV */
|
|
}
|
|
|
|
char *
|
|
get_env_value (varname)
|
|
char *varname;
|
|
{
|
|
return ((char *)getenv (varname));
|
|
}
|
|
|
|
char *
|
|
get_home_dir ()
|
|
{
|
|
char *home_dir;
|
|
struct passwd *entry;
|
|
|
|
home_dir = (char *)NULL;
|
|
entry = getpwuid (getuid ());
|
|
if (entry)
|
|
home_dir = entry->pw_dir;
|
|
return (home_dir);
|
|
}
|
|
|
|
#if !defined (O_NDELAY)
|
|
# if defined (FNDELAY)
|
|
# define O_NDELAY FNDELAY
|
|
# endif
|
|
#endif
|
|
|
|
int
|
|
unset_nodelay_mode (fd)
|
|
int fd;
|
|
{
|
|
int flags, bflags;
|
|
|
|
if ((flags = fcntl (fd, F_GETFL, 0)) < 0)
|
|
return -1;
|
|
|
|
bflags = 0;
|
|
|
|
#ifdef O_NONBLOCK
|
|
bflags |= O_NONBLOCK;
|
|
#endif
|
|
|
|
#ifdef O_NDELAY
|
|
bflags |= O_NDELAY;
|
|
#endif
|
|
|
|
if (flags & bflags)
|
|
{
|
|
flags &= ~bflags;
|
|
return (fcntl (fd, F_SETFL, flags));
|
|
}
|
|
|
|
return 0;
|
|
}
|