mirror of
git://git.gnupg.org/gnupg.git
synced 2024-12-23 10:29:58 +01:00
364 lines
8.3 KiB
C
364 lines
8.3 KiB
C
/* miscutil.c - miscellaneous utilities
|
|
* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
|
|
*
|
|
* This file is part of GnuPG.
|
|
*
|
|
* GnuPG 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 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GnuPG 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <ctype.h>
|
|
#ifdef HAVE_LANGINFO_H
|
|
#include <langinfo.h>
|
|
#endif
|
|
#include "types.h"
|
|
#include "util.h"
|
|
#include "i18n.h"
|
|
|
|
/****************
|
|
* I know that the OpenPGP protocol has a Y2106 problem ;-)
|
|
*/
|
|
u32
|
|
make_timestamp()
|
|
{
|
|
return time(NULL);
|
|
}
|
|
|
|
/****************
|
|
* Scan a date string and return a timestamp.
|
|
* The only supported format is "yyyy-mm-dd"
|
|
* Returns 0 for an invalid date.
|
|
*/
|
|
u32
|
|
scan_isodatestr( const char *string )
|
|
{
|
|
int year, month, day;
|
|
struct tm tmbuf;
|
|
time_t stamp;
|
|
int i;
|
|
|
|
if( strlen(string) != 10 || string[4] != '-' || string[7] != '-' )
|
|
return 0;
|
|
for( i=0; i < 4; i++ )
|
|
if( !isdigit(string[i]) )
|
|
return 0;
|
|
if( !isdigit(string[5]) || !isdigit(string[6]) )
|
|
return 0;
|
|
if( !isdigit(string[8]) || !isdigit(string[9]) )
|
|
return 0;
|
|
year = atoi(string);
|
|
month = atoi(string+5);
|
|
day = atoi(string+8);
|
|
/* some basic checks */
|
|
if( year < 1970 || month < 1 || month > 12 || day < 1 || day > 31 )
|
|
return 0;
|
|
memset( &tmbuf, 0, sizeof tmbuf );
|
|
tmbuf.tm_mday = day;
|
|
tmbuf.tm_mon = month-1;
|
|
tmbuf.tm_year = year - 1900;
|
|
tmbuf.tm_isdst = -1;
|
|
stamp = mktime( &tmbuf );
|
|
if( stamp == (time_t)-1 )
|
|
return 0;
|
|
return stamp;
|
|
}
|
|
|
|
|
|
u32
|
|
add_days_to_timestamp( u32 stamp, u16 days )
|
|
{
|
|
return stamp + days*86400L;
|
|
}
|
|
|
|
|
|
/****************
|
|
* Return a string with a time value in the form: x Y, n D, n H
|
|
*/
|
|
|
|
const char *
|
|
strtimevalue( u32 value )
|
|
{
|
|
static char buffer[30];
|
|
unsigned int years, days, hours, minutes;
|
|
|
|
value /= 60;
|
|
minutes = value % 60;
|
|
value /= 60;
|
|
hours = value % 24;
|
|
value /= 24;
|
|
days = value % 365;
|
|
value /= 365;
|
|
years = value;
|
|
|
|
sprintf(buffer,"%uy%ud%uh%um", years, days, hours, minutes );
|
|
if( years )
|
|
return buffer;
|
|
if( days )
|
|
return strchr( buffer, 'y' ) + 1;
|
|
return strchr( buffer, 'd' ) + 1;
|
|
}
|
|
|
|
|
|
/****************
|
|
* Note: this function returns GMT
|
|
*/
|
|
const char *
|
|
strtimestamp( u32 stamp )
|
|
{
|
|
static char buffer[11+5];
|
|
struct tm *tp;
|
|
time_t atime = stamp;
|
|
|
|
if (atime < 0) {
|
|
strcpy (buffer, "????" "-??" "-??");
|
|
}
|
|
else {
|
|
tp = gmtime( &atime );
|
|
sprintf(buffer,"%04d-%02d-%02d",
|
|
1900+tp->tm_year, tp->tm_mon+1, tp->tm_mday );
|
|
}
|
|
return buffer;
|
|
}
|
|
|
|
/****************
|
|
* Note: this function returns local time
|
|
*/
|
|
const char *
|
|
asctimestamp( u32 stamp )
|
|
{
|
|
static char buffer[50];
|
|
#if defined (HAVE_STRFTIME) && defined (HAVE_NL_LANGINFO)
|
|
static char fmt[50];
|
|
#endif
|
|
struct tm *tp;
|
|
time_t atime = stamp;
|
|
|
|
if (atime < 0) {
|
|
strcpy (buffer, "????" "-??" "-??");
|
|
return buffer;
|
|
}
|
|
|
|
tp = localtime( &atime );
|
|
#ifdef HAVE_STRFTIME
|
|
#if defined(HAVE_NL_LANGINFO)
|
|
mem2str( fmt, nl_langinfo(D_T_FMT), DIM(fmt)-3 );
|
|
if( strstr( fmt, "%Z" ) == NULL )
|
|
strcat( fmt, " %Z");
|
|
strftime( buffer, DIM(buffer)-1, fmt, tp );
|
|
#else
|
|
/* fixme: we should check whether the locale appends a " %Z"
|
|
* These locales from glibc don't put the " %Z":
|
|
* fi_FI hr_HR ja_JP lt_LT lv_LV POSIX ru_RU ru_SU sv_FI sv_SE zh_CN
|
|
*/
|
|
strftime( buffer, DIM(buffer)-1, "%c %Z", tp );
|
|
#endif
|
|
buffer[DIM(buffer)-1] = 0;
|
|
#else
|
|
mem2str( buffer, asctime(tp), DIM(buffer) );
|
|
#endif
|
|
return buffer;
|
|
}
|
|
|
|
/****************
|
|
* Print a string to FP, but filter all control characters out.
|
|
*/
|
|
void
|
|
print_string( FILE *fp, const byte *p, size_t n, int delim )
|
|
{
|
|
for( ; n; n--, p++ )
|
|
if( *p < 0x20 || (*p >= 0x7f && *p < 0xa0) || *p == delim ||
|
|
(delim && *p=='\\')) {
|
|
putc('\\', fp);
|
|
if( *p == '\n' )
|
|
putc('n', fp);
|
|
else if( *p == '\r' )
|
|
putc('r', fp);
|
|
else if( *p == '\f' )
|
|
putc('f', fp);
|
|
else if( *p == '\v' )
|
|
putc('v', fp);
|
|
else if( *p == '\b' )
|
|
putc('b', fp);
|
|
else if( !*p )
|
|
putc('0', fp);
|
|
else
|
|
fprintf(fp, "x%02x", *p );
|
|
}
|
|
else
|
|
putc(*p, fp);
|
|
}
|
|
|
|
/****************
|
|
* Print an UTF8 string to FP and filter all control characters out.
|
|
*/
|
|
void
|
|
print_utf8_string2 ( FILE *fp, const byte *p, size_t n, int delim )
|
|
{
|
|
size_t i;
|
|
char *buf;
|
|
|
|
/* we can handle plain ascii simpler, so check for it first */
|
|
for(i=0; i < n; i++ ) {
|
|
if( p[i] & 0x80 )
|
|
break;
|
|
}
|
|
if( i < n ) {
|
|
buf = utf8_to_native ( p, n, delim );
|
|
/*(utf8 conversion already does the control character quoting)*/
|
|
fputs( buf, fp );
|
|
m_free( buf );
|
|
}
|
|
else
|
|
print_string( fp, p, n, delim );
|
|
}
|
|
|
|
void
|
|
print_utf8_string( FILE *fp, const byte *p, size_t n )
|
|
{
|
|
print_utf8_string2 (fp, p, n, 0);
|
|
}
|
|
|
|
/****************
|
|
* This function returns a string which is suitable for printing
|
|
* Caller must release it with m_free()
|
|
*/
|
|
char *
|
|
make_printable_string( const byte *p, size_t n, int delim )
|
|
{
|
|
size_t save_n, buflen;
|
|
const byte *save_p;
|
|
char *buffer, *d;
|
|
|
|
/* first count length */
|
|
for(save_n = n, save_p = p, buflen=1 ; n; n--, p++ ) {
|
|
if( *p < 0x20 || (*p >= 0x7f && *p < 0xa0) || *p == delim ||
|
|
(delim && *p=='\\')) {
|
|
if( *p=='\n' || *p=='\r' || *p=='\f'
|
|
|| *p=='\v' || *p=='\b' || !*p )
|
|
buflen += 2;
|
|
else
|
|
buflen += 4;
|
|
}
|
|
else
|
|
buflen++;
|
|
}
|
|
p = save_p;
|
|
n = save_n;
|
|
/* and now make the string */
|
|
d = buffer = m_alloc( buflen );
|
|
for( ; n; n--, p++ ) {
|
|
if( *p < 0x20 || (*p >= 0x7f && *p < 0xa0) || *p == delim ||
|
|
(delim && *p=='\\')) {
|
|
*d++ = '\\';
|
|
if( *p == '\n' )
|
|
*d++ = 'n';
|
|
else if( *p == '\r' )
|
|
*d++ = 'r';
|
|
else if( *p == '\f' )
|
|
*d++ = 'f';
|
|
else if( *p == '\v' )
|
|
*d++ = 'v';
|
|
else if( *p == '\b' )
|
|
*d++ = 'b';
|
|
else if( !*p )
|
|
*d++ = '0';
|
|
else {
|
|
sprintf(d, "x%02x", *p );
|
|
d += 2;
|
|
}
|
|
}
|
|
else
|
|
*d++ = *p;
|
|
}
|
|
*d = 0;
|
|
return buffer;
|
|
}
|
|
|
|
int
|
|
answer_is_yes_no_default( const char *s, int def_answer )
|
|
{
|
|
const char *long_yes = _("yes");
|
|
const char *short_yes = _("yY");
|
|
const char *long_no = _("no");
|
|
const char *short_no = _("nN");
|
|
|
|
/* Note: we have to use the local dependent strcasecmp here */
|
|
if( !stricmp(s, long_yes ) )
|
|
return 1;
|
|
if( *s && strchr( short_yes, *s ) && !s[1] )
|
|
return 1;
|
|
/* test for no strings to catch ambiguities for the next test */
|
|
if( !stricmp(s, long_no ) )
|
|
return 0;
|
|
if( *s && strchr( short_no, *s ) && !s[1] )
|
|
return 0;
|
|
/* test for the english version (for those who are used to type yes) */
|
|
if( !ascii_strcasecmp(s, "yes" ) )
|
|
return 1;
|
|
if( *s && strchr( "yY", *s ) && !s[1] )
|
|
return 1;
|
|
return def_answer;
|
|
}
|
|
|
|
int
|
|
answer_is_yes( const char *s )
|
|
{
|
|
return answer_is_yes_no_default(s,0);
|
|
}
|
|
|
|
/****************
|
|
* Return 1 for yes, -1 for quit, or 0 for no
|
|
*/
|
|
int
|
|
answer_is_yes_no_quit( const char *s )
|
|
{
|
|
const char *long_yes = _("yes");
|
|
const char *long_no = _("no");
|
|
const char *long_quit = _("quit");
|
|
const char *short_yes = _("yY");
|
|
const char *short_no = _("nN");
|
|
const char *short_quit = _("qQ");
|
|
|
|
/* Note: We have to use the locale dependent strcasecmp */
|
|
if( !stricmp(s, long_no ) )
|
|
return 0;
|
|
if( !stricmp(s, long_yes ) )
|
|
return 1;
|
|
if( !stricmp(s, long_quit ) )
|
|
return -1;
|
|
if( *s && strchr( short_no, *s ) && !s[1] )
|
|
return 0;
|
|
if( *s && strchr( short_yes, *s ) && !s[1] )
|
|
return 1;
|
|
if( *s && strchr( short_quit, *s ) && !s[1] )
|
|
return -1;
|
|
/* but not here */
|
|
if( !ascii_strcasecmp(s, "yes" ) )
|
|
return 1;
|
|
if( !ascii_strcasecmp(s, "quit" ) )
|
|
return -1;
|
|
if( *s && strchr( "yY", *s ) && !s[1] )
|
|
return 1;
|
|
if( *s && strchr( "qQ", *s ) && !s[1] )
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
|