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- /***********************************************************
- Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
- Amsterdam, The Netherlands.
-
- All Rights Reserved
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the names of Stichting Mathematisch
- Centrum or CWI not be used in advertising or publicity pertaining to
- distribution of the software without specific, written prior permission.
-
- STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
- THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
- FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
- FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
- OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
- ******************************************************************/
-
- /* fcntl module */
-
- #include "allobjects.h"
- #include "modsupport.h"
-
-
- /* fcntl(fd, opt, [arg]) */
-
- static object *
- fcntl_fcntl(self, args)
- object *self; /* Not used */
- object *args;
- {
- int fd;
- int code;
- int arg;
- int ret;
- char *str;
- int len;
- char buf[1024];
-
- if (getargs(args, "(iis#)", &fd, &code, &str, &len)) {
- if (len > sizeof buf) {
- err_setstr(ValueError, "fcntl string arg too long");
- return NULL;
- }
- memcpy(buf, str, len);
- if (fcntl(fd, code, buf) < 0) {
- err_errno(IOError);
- return NULL;
- }
- return newsizedstringobject(buf, len);
- }
-
- err_clear();
- if (getargs(args, "(ii)", &fd, &code))
- arg = 0;
- else {
- err_clear();
- if (!getargs(args, "(iii)", &fd, &code, &arg))
- return NULL;
- }
- ret = fcntl(fd, code, arg);
- if (ret < 0) {
- err_errno(IOError);
- return NULL;
- }
- return newintobject((long)ret);
- }
-
-
- /* ioctl(fd, opt, [arg]) */
-
- static object *
- fcntl_ioctl(self, args)
- object *self; /* Not used */
- object *args;
- {
- int fd;
- int code;
- int arg;
- int ret;
- char *str;
- int len;
- char buf[1024];
-
- if (getargs(args, "(iis#)", &fd, &code, &str, &len)) {
- if (len > sizeof buf) {
- err_setstr(ValueError, "ioctl string arg too long");
- return NULL;
- }
- memcpy(buf, str, len);
- if (ioctl(fd, code, buf) < 0) {
- err_errno(IOError);
- return NULL;
- }
- return newsizedstringobject(buf, len);
- }
-
- err_clear();
- if (getargs(args, "(ii)", &fd, &code))
- arg = 0;
- else {
- err_clear();
- if (!getargs(args, "(iii)", &fd, &code, &arg))
- return NULL;
- }
- ret = ioctl(fd, code, arg);
- if (ret < 0) {
- err_errno(IOError);
- return NULL;
- }
- return newintobject((long)ret);
- }
-
-
- /* List of functions */
-
- static struct methodlist fcntl_methods[] = {
- {"fcntl", fcntl_fcntl},
- {"ioctl", fcntl_ioctl},
- {NULL, NULL} /* sentinel */
- };
-
-
- /* Module initialisation */
-
- void
- initfcntl()
- {
- object *m, *d;
-
- /* Create the module and add the functions */
- m = initmodule("fcntl", fcntl_methods);
-
- /* Add some symbolic constants to the module */
- d = getmoduledict(m);
-
- /* Check for errors */
- if (err_occurred())
- fatal("can't initialize module fcntl");
- }
-