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/* shmtest.c
*
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <unistd.h>
#ifdef HAVE_SYS_IPC_H
#include <sys/ipc.h>
#endif
#ifdef HAVE_SYS_SHM_H
#include <sys/shm.h>
#endif
#include "util.h"
#include "ttyio.h"
#include "i18n.h"
#ifdef HAVE_DOSISH_SYSTEM
int main( int argc, char **argv )
{
fprintf(stderr, "Sorry, not yet available for DOSish systems\n");
exit(1);
}
#else
static int serverpid = -1;
static void
my_usage(void)
{
fprintf(stderr, "usage: shmtest gpg-command-line\n");
exit(1);
}
const char *
strusage( int level )
{
return default_strusage(level);
}
static void
i18n_init(void)
{
#ifdef ENABLE_NLS
#ifdef HAVE_LC_MESSAGES
setlocale( LC_MESSAGES, "" );
#else
setlocale( LC_ALL, "" );
#endif
bindtextdomain( PACKAGE, G10_LOCALEDIR );
textdomain( PACKAGE );
#endif
}
static void
do_get_string( int mode, const char *keyword, byte *area, size_t areasize )
{
size_t n, len;
char *p=NULL;
int yes=0;
n = area[0] << 8 | area[1];
/* fixme: do some sanity checks here */
if( mode == 1 )
p = tty_get( keyword );
else if( mode == 3 )
p = tty_get_hidden( keyword );
else
yes = tty_get_answer_is_yes( keyword );
if( p ) {
len = strlen(p);
memcpy( area+n+2, p, len );
area[n] = len >> 8;
area[n+1] = len;
m_free(p);
}
else { /* bool */
area[n] = 0;
area[n+1] = 1;
area[n+2] = yes;
}
area[3] = 1; /* we should better use a semaphore */
kill( serverpid, SIGUSR1 );
}
int
main(int argc, char **argv)
{
void *area = NULL;
size_t areasize = 4096;
int shm_id = -1;
FILE *fp;
char buf[200];
char *p, *p2;
size_t n;
int i;
log_set_name("shmtest");
i18n_init();
#ifndef USE_SHM_COPROCESSING
log_info("SHM_COPRPOCESSING is not available\n");
#else
if( argc < 1 )
my_usage();
for(n=0,i=1; i < argc; i++ )
n += strlen(argv[i]) + 1;
p = m_alloc( 100 + n );
strcpy( p, "../g10/gpg --status-fd 1 --run-as-shm-coprocess 0");
for(i=1; i < argc; i++ ) {
strcat(p, " " );
strcat(p, argv[i] );
}
fp = popen( p, "r" );
m_free( p );
if( !fp )
log_error("popen failed: %s\n", strerror(errno));
while ( fgets (buf, sizeof (buf) - 1, fp ) != NULL ) {
size_t len = strlen(buf);
if( len >= 9 && !memcmp( buf, "[GNUPG:] ", 9 ) ) {
int word=0;
int is_info = 0, is_get = 0;
for( p = strtok(buf+9, " \n"); p ; p = strtok(NULL, " \n")) {
word++;
if( word==1 && !strcmp(p,"SHM_INFO") ) {
if( !area )
is_info=1;
else
log_error("duplicate SHM_INFO ignored\n" );
}
else if( is_info && (p2 = strchr(p, '=' )) ) {
int val;
*p2++ = 0;
val = atoi(p2); /* should be atou() for some values */
if( !strcmp(p, "pv" ) ) {
if( atoi(p2) != 1 )
log_fatal("invalid protocol version %d\n", val );
is_info = 2;
}
else if( !strcmp(p, "pid" ) )
serverpid = val;
else if( !strcmp(p, "shmid" ) )
shm_id = val;
}
else if( word == 1 && !strcmp(p,"SHM_GET") )
is_get = 1;
else if( word == 1 && !strcmp(p,"SHM_GET_BOOL") )
is_get = 2;
else if( word == 1 && !strcmp(p,"SHM_GET_HIDDEN") )
is_get = 3;
else if( word == 2 && is_get ) {
do_get_string( is_get, p, area, areasize );
break;
}
else if( word == 1 )
log_info("Status: %s\n", p);
}
if( is_info ) {
if( is_info < 2 )
log_fatal("SHM info without protocol version\n");
if( serverpid == -1 )
log_fatal("SHM info without server's pid\n");
if( shm_id == -1 )
log_fatal("SHM info without id\n");
log_info("Shared memory info: server=%d shm_id=%d\n",
serverpid, shm_id);
area = shmat( shm_id, 0, 0 );
if( area == (void*)-1 )
log_fatal("attach to shared memory failed: %s\n",
strerror(errno));
}
}
else
fputs (buf, stdout);
}
if( pclose(fp) )
log_error("pclose failed\n");
return 0;
#endif
}
#endif
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