socat/xio-system.c
2008-10-22 02:33:23 +02:00

76 lines
2.1 KiB
C

/* source: xio-system.c */
/* Copyright Gerhard Rieger 2001-2008 */
/* Published under the GNU General Public License V.2, see file COPYING */
/* this file contains the source for opening addresses of system type */
#include "xiosysincludes.h"
#include "xioopen.h"
#include "xio-progcall.h"
#include "xio-system.h"
#if WITH_SYSTEM
static int xioopen_system(int arg, const char *argv[], struct opt *opts,
int xioflags, /* XIO_RDONLY etc. */
xiofile_t *fd,
unsigned groups,
int dummy1, int dummy2, int dummy3
);
static const struct xioaddr_endpoint_desc xioendpoint_system1 = { XIOADDR_SYS, "system", 1, XIOBIT_ALL, GROUP_FD|GROUP_FORK|GROUP_EXEC|GROUP_SOCKET|GROUP_SOCK_UNIX|GROUP_TERMIOS|GROUP_FIFO|GROUP_PTY|GROUP_PARENT, XIOSHUT_UNSPEC, XIOCLOSE_UNSPEC, xioopen_system, 1, 0, 0 HELP(":<shell-command>") };
const union xioaddr_desc *xioaddrs_system[] = {
(union xioaddr_desc *)&xioendpoint_system1,
NULL
};
static int xioopen_system(int argc, const char *argv[], struct opt *opts,
int xioflags, /* XIO_RDONLY etc. */
xiofile_t *fd,
unsigned groups,
int dummy1, int dummy2, int dummy3
) {
int status;
char *path = NULL;
int duptostderr;
int result;
const char *string = argv[1];
status = _xioopen_foxec_end(xioflags, &fd->stream, groups, &opts, &duptostderr);
if (status < 0) return status;
if (status == 0) { /* child */
int numleft;
if (setopt_path(opts, &path) < 0) {
/* this could be dangerous, so let us abort this child... */
Exit(1);
}
if ((numleft = leftopts(opts)) > 0) {
Error1("%d option(s) could not be used", numleft);
showleft(opts);
return STAT_NORETRY;
}
/* only now redirect stderr */
if (duptostderr >= 0) {
diag_dup();
Dup2(duptostderr, 2);
}
Info1("executing shell command \"%s\"", string);
result = System(string);
if (result != 0) {
Warn2("system(\"%s\") returned with status %d", string, result);
Warn1("system(): %s", strerror(errno));
}
Exit(0); /* this child process */
}
/* parent */
return 0;
}
#endif /* WITH_SYSTEM */