mirror of
https://github.com/moparisthebest/socat
synced 2024-12-22 06:58:47 -05:00
219 lines
6.9 KiB
C
219 lines
6.9 KiB
C
/* source: xio-gopen.c */
|
|
/* Copyright Gerhard Rieger 2001-2007 */
|
|
/* Published under the GNU General Public License V.2, see file COPYING */
|
|
|
|
/* this file contains the source for opening addresses of generic open type */
|
|
|
|
#include "xiosysincludes.h"
|
|
#include "xioopen.h"
|
|
|
|
#include "xio-named.h"
|
|
#include "xio-unix.h"
|
|
#include "xio-gopen.h"
|
|
|
|
|
|
#if WITH_GOPEN
|
|
|
|
static int xioopen_gopen(int argc, const char *argv[], struct opt *opts, int xioflags, xiofile_t *fd, unsigned groups, int dummy1, int dummy2, int dummy3);
|
|
|
|
|
|
const struct addrdesc addr_gopen = { "gopen", 3, xioopen_gopen, GROUP_FD|GROUP_FIFO|GROUP_CHR|GROUP_BLK|GROUP_REG|GROUP_NAMED|GROUP_OPEN|GROUP_FILE|GROUP_TERMIOS|GROUP_SOCKET|GROUP_SOCK_UNIX, 0, 0, 0 HELP(":<filename>") };
|
|
|
|
static int xioopen_gopen(int argc, const char *argv[], struct opt *opts, int xioflags, xiofile_t *fd, unsigned groups, int dummy1, int dummy2, int dummy3) {
|
|
const char *filename = argv[1];
|
|
flags_t openflags = (xioflags & XIO_ACCMODE);
|
|
mode_t st_mode;
|
|
bool exists;
|
|
bool opt_unlink_close = false;
|
|
int result;
|
|
|
|
if ((result =
|
|
_xioopen_named_early(argc, argv, fd, GROUP_NAMED|groups, &exists, opts)) < 0) {
|
|
return result;
|
|
}
|
|
st_mode = result;
|
|
|
|
if (exists) {
|
|
/* file (or at least named entry) exists */
|
|
if ((xioflags&XIO_ACCMODE) != XIO_RDONLY) {
|
|
openflags |= O_APPEND;
|
|
}
|
|
} else {
|
|
openflags |= O_CREAT;
|
|
}
|
|
|
|
/* note: when S_ISSOCK was undefined, it always gives 0 */
|
|
if (exists && S_ISSOCK(st_mode)) {
|
|
#if WITH_UNIX
|
|
int socktype = SOCK_STREAM;
|
|
int optsotype = -1;
|
|
struct sockaddr_un sa, us;
|
|
socklen_t salen, uslen = sizeof(us);
|
|
bool needbind = false;
|
|
char infobuff[256];
|
|
struct opt *opts2;
|
|
|
|
socket_un_init(&sa);
|
|
socket_un_init(&us);
|
|
|
|
Info1("\"%s\" is a socket, connecting to it", filename);
|
|
if (retropt_int(opts, OPT_SO_TYPE, &optsotype) == 0) {
|
|
socktype = optsotype;
|
|
}
|
|
|
|
if (retropt_bind(opts, AF_UNIX, socktype, 0, (struct sockaddr *)&us, &uslen, 0, 0, 0) != STAT_NOACTION) {
|
|
needbind = true;
|
|
}
|
|
|
|
retropt_bool(opts, OPT_UNLINK_CLOSE, &opt_unlink_close);
|
|
if (opt_unlink_close) {
|
|
if ((fd->stream.unlink_close = strdup(filename)) == NULL) {
|
|
Error1("strdup(\"%s\"): out of memory", filename);
|
|
}
|
|
fd->stream.opt_unlink_close = true;
|
|
}
|
|
|
|
/* save options, because we might have to start again with Socket() */
|
|
opts2 = copyopts(opts, GROUP_ALL);
|
|
|
|
if ((fd->stream.fd = Socket(PF_UNIX, socktype, 0)) < 0) {
|
|
Error2("socket(PF_UNIX, %d, 0): %s", socktype, strerror(errno));
|
|
return STAT_RETRYLATER;
|
|
}
|
|
/*0 Info2("socket(PF_UNIX, %d, 0) -> %d", socktype, fd->stream.fd);*/
|
|
applyopts(fd->stream.fd, opts, PH_PASTSOCKET);
|
|
applyopts(fd->stream.fd, opts, PH_FD);
|
|
|
|
applyopts_cloexec(fd->stream.fd, opts);
|
|
|
|
sa.sun_family = AF_UNIX;
|
|
salen = xiosetunix(&sa, filename, false, false);
|
|
|
|
#if 0
|
|
applyopts(fd->stream.fd, opts, PH_PREBIND);
|
|
applyopts(fd->stream.fd, opts, PH_BIND);
|
|
if (us) {
|
|
if (Bind(fd->stream.fd, us, uslen) < 0) {
|
|
Error4("bind(%d, {%s}, "F_Zd"): %s",
|
|
fd->fd, sockaddr_info(us, infobuff, sizeof(infobuff)),
|
|
uslen, strerror(errno));
|
|
if (fd->forever || --fd->retry) {
|
|
Nanosleep(&fd->intervall, NULL);
|
|
continue;
|
|
} else
|
|
return STAT_RETRYLATER;
|
|
}
|
|
}
|
|
applyopts(fd->stream.fd, opts, PH_PASTBIND);
|
|
#endif /* 0 */
|
|
|
|
applyopts(fd->stream.fd, opts, PH_CONNECT);
|
|
if ((result = Connect(fd->stream.fd, (struct sockaddr *)&sa, salen)) < 0) {
|
|
if (errno == EINPROGRESS) {
|
|
Warn4("connect(%d, %s, "F_Zd"): %s",
|
|
fd->stream.fd, sockaddr_unix_info(&sa, salen, infobuff, sizeof(infobuff)),
|
|
sizeof(sa), strerror(errno));
|
|
} else if (errno == EPROTOTYPE && optsotype != SOCK_STREAM) {
|
|
Warn4("connect(%d, %s, "F_Zd"): %s",
|
|
fd->stream.fd, sockaddr_unix_info(&sa, salen, infobuff, sizeof(infobuff)),
|
|
sizeof(sa), strerror(errno));
|
|
Info("assuming datagram socket");
|
|
Close(fd->stream.fd);
|
|
|
|
opts = opts2;
|
|
if ((fd->stream.fd = Socket(PF_UNIX, SOCK_DGRAM, 0)) < 0) {
|
|
Error1("socket(PF_UNIX, SOCK_DGRAM, 0): %s", strerror(errno));
|
|
return STAT_RETRYLATER;
|
|
}
|
|
/*0 Info1("socket(PF_UNIX, SOCK_DGRAM, 0) -> %d", fd->stream.fd);*/
|
|
|
|
applyopts(fd->stream.fd, opts, PH_PASTSOCKET);
|
|
applyopts(fd->stream.fd, opts, PH_FD);
|
|
|
|
applyopts_cloexec(fd->stream.fd, opts);
|
|
|
|
sa.sun_family = AF_UNIX;
|
|
strncpy(sa.sun_path, filename, sizeof(sa.sun_path));
|
|
|
|
fd->stream.dtype = XIODATA_RECVFROM;
|
|
fd->stream.salen = sizeof(sa);
|
|
memcpy(&fd->stream.peersa.soa, &sa, fd->stream.salen);
|
|
} else {
|
|
Error4("connect(%d, %s, "F_Zd"): %s",
|
|
fd->stream.fd, sockaddr_unix_info(&sa, fd->stream.salen, infobuff, sizeof(infobuff)),
|
|
sizeof(sa), strerror(errno));
|
|
return STAT_RETRYLATER;
|
|
}
|
|
}
|
|
if (fd->stream.howtoend == END_UNSPEC) {
|
|
fd->stream.howtoend = END_SHUTDOWN;
|
|
}
|
|
|
|
applyopts_fchown(fd->stream.fd, opts);
|
|
applyopts(fd->stream.fd, opts, PH_CONNECTED);
|
|
applyopts(fd->stream.fd, opts, PH_LATE);
|
|
applyopts_named(filename, opts, PH_PASTOPEN); /* unlink-late */
|
|
|
|
if (Getsockname(fd->stream.fd, (struct sockaddr *)&us, &uslen) < 0) {
|
|
Warn4("getsockname(%d, %p, {%d}): %s",
|
|
fd->stream.fd, &us, uslen, strerror(errno));
|
|
} else {
|
|
Notice1("successfully connected via %s",
|
|
sockaddr_unix_info(&us, uslen, infobuff, sizeof(infobuff)));
|
|
}
|
|
#else
|
|
Error("\"%s\" is a socket, but UNIX socket support is not compiled in");
|
|
return -1;
|
|
#endif /* WITH_UNIX */
|
|
|
|
} else {
|
|
/* a file name */
|
|
|
|
Info1("\"%s\" is not a socket, open()'ing it", filename);
|
|
|
|
retropt_bool(opts, OPT_UNLINK_CLOSE, &opt_unlink_close);
|
|
if (opt_unlink_close) {
|
|
if ((fd->stream.unlink_close = strdup(filename)) == NULL) {
|
|
Error1("strdup(\"%s\"): out of memory", filename);
|
|
}
|
|
fd->stream.opt_unlink_close = true;
|
|
}
|
|
|
|
Notice3("opening %s \"%s\" for %s",
|
|
filetypenames[(st_mode&S_IFMT)>>12], filename, ddirection[(xioflags&XIO_ACCMODE)]);
|
|
if ((result = _xioopen_open(filename, openflags, opts)) < 0)
|
|
return result;
|
|
#ifdef I_PUSH
|
|
if (S_ISCHR(st_mode)) {
|
|
Ioctl(result, I_PUSH, "ptem");
|
|
Ioctl(result, I_PUSH, "ldterm");
|
|
Ioctl(result, I_PUSH, "ttcompat");
|
|
}
|
|
#endif
|
|
fd->stream.fd = result;
|
|
|
|
#if WITH_TERMIOS
|
|
if (Isatty(fd->stream.fd)) {
|
|
if (Tcgetattr(fd->stream.fd, &fd->stream.savetty) < 0) {
|
|
Warn2("cannot query current terminal settings on fd %d: %s",
|
|
fd->stream.fd, strerror(errno));
|
|
} else {
|
|
fd->stream.ttyvalid = true;
|
|
}
|
|
}
|
|
#endif /* WITH_TERMIOS */
|
|
applyopts_named(filename, opts, PH_FD);
|
|
applyopts(fd->stream.fd, opts, PH_FD);
|
|
applyopts_cloexec(fd->stream.fd, opts);
|
|
}
|
|
|
|
if ((result = applyopts2(fd->stream.fd, opts, PH_PASTSOCKET, PH_CONNECTED)) < 0)
|
|
return result;
|
|
|
|
if ((result = _xio_openlate(&fd->stream, opts)) < 0)
|
|
return result;
|
|
return 0;
|
|
}
|
|
|
|
#endif /* WITH_GOPEN */
|