summaryrefslogtreecommitdiffstats
path: root/support/bashversion.c
blob: 59c2321e7c5fea9ba3751727fd8dabae4a10986f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
/* bashversion.c -- Display bash version information. */

/* Copyright (C) 2001 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 __P((void));
extern void show_shell_version __P((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);
}