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/* printversion.c: Output for the standard GNU option --version.
Written in 1996 by Karl Berry. Public domain. */
#include <w2c/config.h>
#include "lib.h"
#include <kpathsea/version.h>
#ifdef PTEX
#include <ptexenc/ptexenc.h>
#endif
/* We're passed in the original WEB banner string, which has the form
This is PROGRAM, Version VERSION-NUMBER
We parse the PROGRAM and VERSION-NUMBER out of this.
If COPYRIGHT_HOLDER is specified and AUTHOR isn't, then use the
former for the latter. If AUTHOR is specified and COPYRIGHT_HOLDER
isn't, it means the original program is public domain.
Maybe I should have just done it all inline in each individual
program, but tangle doesn't allow multiline string constants ... */
void
printversionandexit (const_string banner,
const_string copyright_holder,
const_string author,
const_string extra_info)
{
string prog_name;
unsigned len;
const_string prog_name_end = strchr (banner, ',');
const_string prog_version = strrchr (banner, ' ');
assert (prog_name_end && prog_version);
prog_version++;
len = prog_name_end - banner - sizeof ("This is");
prog_name = xmalloc (len + 1);
strncpy (prog_name, banner + sizeof ("This is"), len);
prog_name[len] = 0;
/* The Web2c version string starts with a space. */
#ifdef PTEX
printf ("%s %s (%s)%s\n", prog_name, prog_version, get_enc_string(),
versionstring);
#else
printf ("%s %s%s\n", prog_name, prog_version, versionstring);
#endif
puts (kpathsea_version_string);
#ifdef PTEX
puts (ptexenc_version_string);
#endif
if (copyright_holder) {
printf ("Copyright 2018 %s.\n", copyright_holder);
if (!author)
author = copyright_holder;
}
puts ("There is NO warranty. Redistribution of this software is");
fputs ("covered by the terms of ", stdout);
printf ("both the %s copyright and\n", prog_name);
puts ("the Lesser GNU General Public License.");
puts ("For more information about these matters, see the file");
printf ("named COPYING and the %s source.\n", prog_name);
printf ("Primary author of %s: %s.\n", prog_name, author);
if (extra_info)
fputs (extra_info, stdout);
free (prog_name);
uexit (0);
}
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