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/* bashversion.c -- Display bash version information. */
/* Copyright (C) 2001-2020 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash 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 3 of the License, or
(at your option) any later version.
Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "stdc.h"
#include <stdio.h>
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#include "bashansi.h"
#include "version.h"
#include "conftypes.h"
#define RFLAG 0x0001
#define VFLAG 0x0002
#define MFLAG 0x0004
#define PFLAG 0x0008
#define SFLAG 0x0010
#define LFLAG 0x0020
#define XFLAG 0x0040
extern int optind;
extern char *optarg;
extern char *dist_version;
extern int patch_level;
extern char *shell_version_string PARAMS((void));
extern void show_shell_version PARAMS((int));
char *shell_name = "bash";
char *progname;
static void
usage()
{
fprintf(stderr, "%s: usage: %s [-hrvpmlsx]\n", progname, progname);
}
int
main (argc, argv)
int argc;
char **argv;
{
int opt, oflags;
char dv[128], *rv;
if (progname = strrchr (argv[0], '/'))
progname++;
else
progname = argv[0];
oflags = 0;
while ((opt = getopt(argc, argv, "hrvmpslx")) != EOF)
{
switch (opt)
{
case 'h':
usage ();
exit (0);
case 'r':
oflags |= RFLAG; /* release */
break;
case 'v':
oflags |= VFLAG; /* version */
break;
case 'm':
oflags |= MFLAG; /* machtype */
break;
case 'p':
oflags |= PFLAG; /* patchlevel */
break;
case 's': /* short version string */
oflags |= SFLAG;
break;
case 'l': /* long version string */
oflags |= LFLAG;
break;
case 'x': /* extended version information */
oflags |= XFLAG;
break;
default:
usage ();
exit (2);
}
}
argc -= optind;
argv += optind;
if (argc > 0)
{
usage ();
exit (2);
}
/* default behavior */
if (oflags == 0)
oflags = SFLAG;
if (oflags & (RFLAG|VFLAG))
{
strcpy (dv, dist_version);
rv = strchr (dv, '.');
if (rv)
*rv++ = '\0';
else
rv = "00";
}
if (oflags & RFLAG)
printf ("%s\n", dv);
else if (oflags & VFLAG)
printf ("%s\n", rv);
else if (oflags & MFLAG)
printf ("%s\n", MACHTYPE);
else if (oflags & PFLAG)
printf ("%d\n", patch_level);
else if (oflags & SFLAG)
printf ("%s\n", shell_version_string ());
else if (oflags & LFLAG)
show_shell_version (0);
else if (oflags & XFLAG)
show_shell_version (1);
exit (0);
}
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