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https://github.com/moparisthebest/socat
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85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/* source: xio-creat.c */
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/* Copyright Gerhard Rieger 2001-2009 */
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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 create type */
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#include "xiosysincludes.h"
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#if WITH_CREAT
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#include "xioopen.h"
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#include "xio-named.h"
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#include "xio-creat.h"
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static int xioopen_creat(int arg, const char *argv[], struct opt *opts, int rw, xiofile_t *fd, unsigned groups, int dummy1, int dummy2, int dummy3);
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/*! within stream model, this is a write-only address - use 2 instead of 3 */
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static const struct xioaddr_endpoint_desc xioaddr_creat1 = { XIOADDR_SYS, "create", 1, XIOBIT_ALL/*?*/, GROUP_FD|GROUP_NAMED|GROUP_FILE, XIOSHUT_NONE, XIOCLOSE_CLOSE, xioopen_creat, 0, 0, 0 HELP(":<filename>") };
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const union xioaddr_desc *xioaddrs_creat[] = {
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(union xioaddr_desc *)&xioaddr_creat1,
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NULL
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};
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/* retrieve the mode option and perform the creat() call.
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returns the file descriptor or a negative value. */
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static int _xioopen_creat(const char *path, int rw, struct opt *opts) {
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mode_t mode = 0666;
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int fd;
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retropt_modet(opts, OPT_PERM, &mode);
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if ((fd = Creat(path, mode)) < 0) {
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Error3("creat(\"%s\", 0%03o): %s",
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path, mode, strerror(errno));
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return STAT_RETRYLATER;
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}
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return fd;
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}
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static int xioopen_creat(int argc, const char *argv[], struct opt *opts, int xioflags, xiofile_t *xfd, unsigned groups, int dummy1, int dummy2, int dummy3) {
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const char *filename = argv[1];
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int rw = (xioflags&XIO_ACCMODE);
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int fd;
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bool exists;
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bool opt_unlink_close = false;
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int result;
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/* remove old file, or set user/permissions on old file; parse options */
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if ((result = _xioopen_named_early(argc, argv, xfd, groups, &exists, opts)) < 0) {
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return result;
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}
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retropt_bool(opts, OPT_UNLINK_CLOSE, &opt_unlink_close);
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if (opt_unlink_close) {
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if ((xfd->stream.unlink_close = strdup(filename)) == NULL) {
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Error1("strdup(\"%s\"): out of memory", filename);
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}
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xfd->stream.opt_unlink_close = true;
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}
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Notice2("creating regular file \"%s\" for %s", filename, ddirection[rw]);
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if ((fd = _xioopen_creat(filename, rw, opts)) < 0)
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return fd;
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if (XIOWITHRD(rw)) xfd->stream.rfd = fd;
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if (XIOWITHWR(rw)) xfd->stream.wfd = fd;
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applyopts_named(filename, opts, PH_PASTOPEN);
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if ((result = applyopts2(fd, opts, PH_PASTOPEN, PH_LATE2)) < 0)
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return result;
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applyopts_cloexec(fd, opts);
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applyopts_fchown(fd, opts);
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if ((result = _xio_openlate(&xfd->stream, opts)) < 0)
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return result;
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return 0;
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}
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#endif /* WITH_CREAT */
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