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81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
/* source: xio-system.c */
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/* Copyright Gerhard Rieger and contributors (see file CHANGES) */
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/* Published under the GNU General Public License V.2, see file COPYING */
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/* this file contains the source for opening addresses of system type */
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#include "xiosysincludes.h"
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#include "xioopen.h"
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#include "xio-progcall.h"
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#include "xio-system.h"
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#if WITH_SYSTEM
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static int xioopen_system(int arg, const char *argv[], struct opt *opts,
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int xioflags, /* XIO_RDONLY etc. */
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xiofile_t *fd,
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groups_t groups,
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int dummy1, int dummy2, int dummy3
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);
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const struct addrdesc xioaddr_system = { "SYSTEM", 3, xioopen_system, GROUP_FD|GROUP_FORK|GROUP_EXEC|GROUP_SOCKET|GROUP_SOCK_UNIX|GROUP_TERMIOS|GROUP_FIFO|GROUP_PTY|GROUP_PARENT, 1, 0, 0 HELP(":<shell-command>") };
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static int xioopen_system(int argc, const char *argv[], struct opt *opts,
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int xioflags, /* XIO_RDONLY etc. */
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xiofile_t *xfd,
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groups_t groups,
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int dummy1, int dummy2, int dummy3
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) {
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struct single *sfd = &xfd->stream;
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int status;
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char *path = NULL;
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int duptostderr;
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int result;
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const char *string = argv[1];
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status = _xioopen_foxec(xioflags, sfd, groups, &opts, &duptostderr);
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if (status < 0)
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return status;
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if (status == 0) { /* child */
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int numleft;
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/* do not shutdown connections that belong our parent */
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sock[0] = NULL;
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sock[1] = NULL;
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if (setopt_path(opts, &path) < 0) {
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/* this could be dangerous, so let us abort this child... */
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Exit(1);
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}
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if ((numleft = leftopts(opts)) > 0) {
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showleft(opts);
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Error1("INTERNAL: %d option(s) remained unused", numleft);
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return STAT_NORETRY;
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}
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/* only now redirect stderr */
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if (duptostderr >= 0) {
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diag_dup();
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Dup2(duptostderr, 2);
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}
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Info1("executing shell command \"%s\"", string);
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errno=0;
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result = System(string);
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if (result != 0) {
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Warn2("system(\"%s\") returned with status %d", string, result);
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if (errno != 0)
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Warn1("system(): %s", strerror(errno));
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}
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Exit(result>>8); /* this child process */
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}
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/* parent */
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_xio_openlate(sfd, opts);
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return 0;
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}
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#endif /* WITH_SYSTEM */
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