125 lines
5.3 KiB
C
125 lines
5.3 KiB
C
/* source: xio-file.c */
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/* Copyright Gerhard Rieger 2001-2007 */
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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 open type */
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#include "xiosysincludes.h"
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#include "xioopen.h"
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#include "xio-named.h"
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#include "xio-file.h"
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static int xioopen_open(int argc, const char *argv[], struct opt *opts, int xioflags, xiofile_t *fd, unsigned groups, int dummy1, int dummy2, int dummy3);
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#if WITH_OPEN
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/****** OPEN addresses ******/
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const struct optdesc opt_o_rdonly = { "o-rdonly", "rdonly", OPT_O_RDONLY, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG_PATTERN, O_RDONLY, O_ACCMODE };
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const struct optdesc opt_o_wronly = { "o-wronly", "wronly", OPT_O_WRONLY, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG_PATTERN, O_WRONLY, O_ACCMODE };
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const struct optdesc opt_o_rdwr = { "o-rdwr", "rdwr", OPT_O_RDWR, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG_PATTERN, O_RDWR, O_ACCMODE };
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const struct optdesc opt_o_create = { "o-create", "creat", OPT_O_CREATE, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_CREAT };
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const struct optdesc opt_o_excl = { "o-excl", "excl", OPT_O_EXCL, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_EXCL };
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const struct optdesc opt_o_noctty = { "o-noctty", "noctty", OPT_O_NOCTTY, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_NOCTTY };
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#ifdef O_SYNC
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const struct optdesc opt_o_sync = { "o-sync", "sync", OPT_O_SYNC, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_SYNC };
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#endif
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#ifdef O_NOFOLLOW
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const struct optdesc opt_o_nofollow = { "o-nofollow", "nofollow",OPT_O_NOFOLLOW, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_NOFOLLOW };
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#endif
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#ifdef O_DIRECTORY
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const struct optdesc opt_o_directory = { "o-directory", "directory",OPT_O_DIRECTORY, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_DIRECTORY };
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#endif
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#ifdef O_LARGEFILE
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const struct optdesc opt_o_largefile = { "o-largefile", "largefile",OPT_O_LARGEFILE, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_LARGEFILE };
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#endif
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#ifdef O_NSHARE
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const struct optdesc opt_o_nshare = { "o-nshare", "nshare", OPT_O_NSHARE, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_NSHARE };
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#endif
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#ifdef O_RSHARE
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const struct optdesc opt_o_rshare = { "o-rshare", "rshare", OPT_O_RSHARE, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_RSHARE };
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#endif
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#ifdef O_DEFER
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const struct optdesc opt_o_defer = { "o-defer", "defer", OPT_O_DEFER, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_DEFER };
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#endif
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#ifdef O_DIRECT
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const struct optdesc opt_o_direct = { "o-direct", "direct", OPT_O_DIRECT, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_DIRECT };
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#endif
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#ifdef O_DSYNC
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const struct optdesc opt_o_dsync = { "o-dsync", "dsync", OPT_O_DSYNC, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_DSYNC };
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#endif
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#ifdef O_RSYNC
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const struct optdesc opt_o_rsync = { "o-rsync", "rsync", OPT_O_RSYNC, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_RSYNC };
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#endif
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#ifdef O_DELAY
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const struct optdesc opt_o_delay = { "o-delay", "delay", OPT_O_DELAY, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_DELAY };
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#endif
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#ifdef O_PRIV
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const struct optdesc opt_o_priv = { "o-priv", "priv", OPT_O_PRIV, GROUP_OPEN, PH_OPEN, TYPE_BOOL, OFUNC_FLAG, O_PRIV };
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#endif
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const struct optdesc opt_o_trunc = { "o-trunc", "trunc", OPT_O_TRUNC, GROUP_OPEN, PH_LATE, TYPE_BOOL, OFUNC_FLAG, O_TRUNC };
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#endif /* WITH_OPEN */
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#if _WITH_FILE /*! inconsistent name FILE vs. OPEN */
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const struct addrdesc addr_open = { "open", 3, xioopen_open, GROUP_FD|GROUP_FIFO|GROUP_CHR|GROUP_BLK|GROUP_REG|GROUP_NAMED|GROUP_OPEN|GROUP_FILE|GROUP_TERMIOS, 0, 0, 0 HELP(":<filename>") };
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/* open for writing:
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if the filesystem entry already exists, the data is appended
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if it does not exist, a file is created and the data is appended
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*/
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static int xioopen_open(int argc, const char *argv[], struct opt *opts, int xioflags, xiofile_t *fd, 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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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, fd, 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 ((fd->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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fd->stream.opt_unlink_close = true;
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}
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Notice3("opening %s \"%s\" for %s",
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filetypenames[(result&S_IFMT)>>12], filename, ddirection[rw]);
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if ((result = _xioopen_open(filename, rw, opts)) < 0)
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return result;
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fd->stream.fd = result;
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#if WITH_TERMIOS
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if (Isatty(fd->stream.fd)) {
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if (Tcgetattr(fd->stream.fd, &fd->stream.savetty) < 0) {
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Warn2("cannot query current terminal settings on fd %d: %s",
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fd->stream.fd, strerror(errno));
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} else {
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fd->stream.ttyvalid = true;
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}
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}
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#endif /* WITH_TERMIOS */
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applyopts_named(filename, opts, PH_FD);
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applyopts(fd->stream.fd, opts, PH_FD);
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applyopts_cloexec(fd->stream.fd, opts);
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applyopts_fchown(fd->stream.fd, opts);
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if ((result = _xio_openlate(&fd->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_FILE */
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