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gnupg/doc/mkdefsinc.c
Werner Koch 0cbd394ebb
w32: Adjust mkdefsinc.c for Windows
--

Under Windows the file names are determined at runtime.  To have
somewhat useful names in the manuals, we provide replacements using
the strings "INSTDIR" and "APPDATA" for the installation directory and
the user specific application data.
2015-06-11 14:43:38 +02:00

317 lines
8.0 KiB
C

/* mkdefsinc.c - Tool to create defs.inc
* Copyright (C) 2015 g10 Code GmbH
*
* This file is free software; as a special exception the author gives
* unlimited permission to copy and/or distribute it, with or without
* modifications, as long as this notice is preserved.
*
* This file is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
/* This tool needs to be build with command line supplied -D options
for the various directory variables. See ../am/cmacros.am. It is
easier to do this in build file than to use fragile make rules and
a template file. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#define PGM "mkdefsinc"
/* We include config.h after all include files because the config.h
values are not valid for the build platform but we need some values
nevertheless. */
#include "config.h"
/* When building for Windows some -D macros are not available. We
provide replacements here. */
#ifdef HAVE_W32_SYSTEM
# define GNUPG_BINDIR "INSTDIR/bin"
# define GNUPG_LIBEXECDIR "INSTDIR/bin"
# define GNUPG_LIBDIR "INSTDIR/lib/" PACKAGE_NAME
# define GNUPG_DATADIR "INSTDIR/share/" PACKAGE_NAME
# define GNUPG_SYSCONFDIR "APPDATA/GNU/etc/" PACKAGE_NAME
# define GNUPG_LOCALSTATEDIR "APPDATA/GNU"
#endif /*HAVE_W32_SYSTEM*/
static int verbose;
/* The usual free wrapper. */
static void
xfree (void *a)
{
if (a)
free (a);
}
static char *
xmalloc (size_t n)
{
char *p;
p = malloc (n);
if (!p)
{
fputs (PGM ": out of core\n", stderr);
exit (1);
}
return p;
}
static char *
xstrdup (const char *string)
{
char *p;
p = xmalloc (strlen (string)+1);
strcpy (p, string);
return p;
}
/* Return a malloced string with the last modification date of the
FILES. Returns NULL on error. */
static char *
get_date_from_files (char **files)
{
const char *file;
const char *usedfile = NULL;
struct stat sb;
struct tm *tp;
int errors = 0;
time_t stamp = 0;
char *result;
for (; (file = *files); files++)
{
if (!*file || !strcmp (file, ".") || !strcmp (file, ".."))
continue;
if (stat (file, &sb))
{
fprintf (stderr, PGM ": stat failed for '%s': %s\n",
file, strerror (errno));
errors = 1;
continue;
}
if (sb.st_mtime > stamp)
{
stamp = sb.st_mtime;
usedfile = file;
}
}
if (errors)
exit (1);
if (usedfile)
fprintf (stderr, PGM ": taking date from '%s'\n", usedfile);
tp = gmtime (&stamp);
if (!tp)
return NULL;
result = xmalloc (4+1+2+1+2+1);
snprintf (result, 4+1+2+1+2+1, "%04d-%02d-%02d",
tp->tm_year + 1900, tp->tm_mon+1, tp->tm_mday);
return result;
}
int
main (int argc, char **argv)
{
int last_argc = -1;
char *opt_date = NULL;
int monthoff;
char *p, *pend;
size_t n;
/* Option parsing. */
if (argc)
{
argc--; argv++;
}
while (argc && last_argc != argc )
{
last_argc = argc;
if (!strcmp (*argv, "--"))
{
argc--; argv++;
break;
}
else if (!strcmp (*argv, "--help"))
{
fputs ("Usage: " PGM " [OPTION] [FILES]\n"
"Create defs.inc file.\nOptions:\n"
" -C DIR Change to DIR before doing anything\n"
" --date STRING Take publication date from STRING\n"
" --verbose Enable extra informational output\n"
" --help Display this help and exit\n"
, stdout);
exit (0);
}
else if (!strcmp (*argv, "--verbose"))
{
verbose = 1;
argc--; argv++;
}
else if (!strcmp (*argv, "-C"))
{
argc--; argv++;
if (argc)
{
if (chdir (*argv))
{
fprintf (stderr, PGM ": chdir to '%s' failed: %s\n",
*argv, strerror (errno));
exit (1);
}
argc--; argv++;
}
}
else if (!strcmp (*argv, "--date"))
{
argc--; argv++;
if (argc)
{
opt_date = xstrdup (*argv);
argc--; argv++;
}
}
else if (!strncmp (*argv, "--", 2))
{
fprintf (stderr, PGM ": unknown option '%s'\n", *argv);
exit (1);
}
}
if (opt_date && *opt_date)
{
time_t stamp;
struct tm *tp;
if (*opt_date == '2' && strlen (opt_date) >= 10
&& opt_date[4] == '-' && opt_date[7] == '-')
{
opt_date[10] = 0;
}
else if ((stamp = strtoul (opt_date, NULL, 10)) > 0
&& (tp = gmtime (&stamp)))
{
p = xmalloc (4+1+2+1+2+1);
snprintf (p, 4+1+2+1+2+1, "%04d-%02d-%02d",
tp->tm_year + 1900, tp->tm_mon+1, tp->tm_mday);
xfree (opt_date);
opt_date = p;
}
else
{
fprintf (stderr, PGM ": bad date '%s'\n", opt_date);
exit (1);
}
}
else
{
xfree (opt_date);
opt_date = argc? get_date_from_files (argv) : NULL;
}
if (!opt_date)
{
opt_date = xstrdup ("unknown");
monthoff = 0;
}
else
{
const char *month = "?";
switch (atoi (opt_date+5))
{
case 1: month = "January"; break;
case 2: month = "February"; break;
case 3: month = "March"; break;
case 4: month = "April"; break;
case 5: month = "May"; break;
case 6: month = "June"; break;
case 7: month = "July"; break;
case 8: month = "August"; break;
case 9: month = "September"; break;
case 10: month = "October"; break;
case 11: month = "November"; break;
case 12: month = "December"; break;
}
n = strlen (opt_date) + strlen (month) + 2 + 1;
p = xmalloc (n);
snprintf (p, n, "%d %n%s %d",
atoi (opt_date+8), &monthoff, month, atoi (opt_date));
xfree (opt_date);
opt_date = p;
}
fputs ("@c defs.inc -*- texinfo -*-\n"
"@c Common and build specific constants for the manuals.\n"
"@c This file has been created by " PGM ".\n", stdout);
fputs ("\n@c Directories\n\n", stdout);
fputs ("@set BINDIR " GNUPG_BINDIR "\n"
"@set LIBEXECDIR " GNUPG_LIBEXECDIR "\n"
"@set LIBDIR " GNUPG_LIBDIR "\n"
"@set DATADIR " GNUPG_DATADIR "\n"
"@set SYSCONFDIR " GNUPG_SYSCONFDIR "\n"
"@set LOCALSTATEDIR " GNUPG_LOCALSTATEDIR "\n"
"@set LOCALCACHEDIR " GNUPG_LOCALSTATEDIR
/* */ "/cache/" PACKAGE_NAME "\n"
"@set LOCALRUNDIR " GNUPG_LOCALSTATEDIR
/* */ "/run/" PACKAGE_NAME "\n"
, stdout);
p = xstrdup (GNUPG_SYSCONFDIR);
pend = strrchr (p, '/');
fputs ("@set SYSCONFSKELDIR ", stdout);
if (pend)
{
*pend = 0;
fputs (p, stdout);
}
fputs ("/skel/." PACKAGE_NAME "\n", stdout);
xfree (p);
fputs ("\n@c Version information a la version.texi\n\n", stdout);
printf ("@set UPDATED %s\n", opt_date);
printf ("@set UPDATED-MONTH %s\n", opt_date + monthoff);
printf ("@set EDITION %s\n", PACKAGE_VERSION);
printf ("@set VERSION %s\n", PACKAGE_VERSION);
fputs ("\n@c Algorithm defaults\n\n", stdout);
/* Fixme: Use a config.h macro here: */
fputs ("@set GPGSYMENCALGO AES-128\n", stdout);
fputs ("\n"
"@c Loc" "al Variables:\n"
"@c buffer-read-only: t\n"
"@c End:\n", stdout);
if (ferror (stdout))
{
fprintf (stderr, PGM ": error writing to stdout: %s\n", strerror (errno));
return 1;
}
return 0;
}