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463 lines
8.3 KiB
C
463 lines
8.3 KiB
C
/***********************************************************
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Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
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Amsterdam, The Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior permission.
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STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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/* Mac module implementation */
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/* Richard J. Walker April 7, 1994 Island Graphics Corp. */
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/* Thanks to Guido's unix emulation routines */
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#include "allobjects.h"
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#include "modsupport.h"
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#include "ceval.h"
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <fcntl.h>
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#include "macdefs.h"
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#include "dirent.h"
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#include "stat.h"
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#ifndef MAXPATHLEN
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#define MAXPATHLEN 1024
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#endif
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/* Prototypes for Unix simulation on Mac */
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int chdir PROTO((const char *path));
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char *getbootvol PROTO((void));
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char *getwd PROTO((char *));
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int mkdir PROTO((const char *path, int mode));
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DIR * opendir PROTO((char *));
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void closedir PROTO((DIR *));
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struct dirent * readdir PROTO((DIR *));
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int rmdir PROTO((const char *path));
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int stat PROTO((const char *path, struct stat *buf));
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int sync PROTO((void));
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int unlink PROTO((const char *));
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static object *MacError; /* Exception mac.error */
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/* Set a MAC-specific error from errno, and return NULL */
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static object *
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mac_error()
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{
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return err_errno(MacError);
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}
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/* MAC generic methods */
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static object *
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mac_1str(args, func)
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object *args;
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int (*func) FPROTO((const char *));
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{
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char *path1;
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int res;
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if (!getargs(args, "s", &path1))
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return NULL;
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BGN_SAVE
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res = (*func)(path1);
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END_SAVE
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if (res < 0)
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return mac_error();
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INCREF(None);
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return None;
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}
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static object *
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mac_2str(args, func)
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object *args;
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int (*func) FPROTO((const char *, const char *));
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{
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char *path1, *path2;
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int res;
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if (!getargs(args, "(ss)", &path1, &path2))
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return NULL;
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BGN_SAVE
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res = (*func)(path1, path2);
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END_SAVE
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if (res < 0)
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return mac_error();
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INCREF(None);
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return None;
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}
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static object *
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mac_strint(args, func)
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object *args;
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int (*func) FPROTO((const char *, int));
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{
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char *path;
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int i;
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int res;
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if (!getargs(args, "(si)", &path, &i))
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return NULL;
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BGN_SAVE
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res = (*func)(path, i);
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END_SAVE
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if (res < 0)
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return mac_error();
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INCREF(None);
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return None;
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}
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static object *
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mac_chdir(self, args)
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object *self;
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object *args;
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{
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return mac_1str(args, chdir);
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}
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static object *
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mac_close(self, args)
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object *self;
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object *args;
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{
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int fd, res;
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if (!getargs(args, "i", &fd))
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return NULL;
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BGN_SAVE
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res = close(fd);
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END_SAVE
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if (res < 0)
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return mac_error();
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INCREF(None);
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return None;
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}
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#ifdef MPW
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static object *
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mac_dup(self, args)
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object *self;
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object *args;
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{
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int fd;
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if (!getargs(args, "i", &fd))
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return NULL;
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BGN_SAVE
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fd = dup(fd);
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END_SAVE
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if (fd < 0)
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return mac_error();
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return newintobject((long)fd);
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}
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static object *
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mac_fdopen(self, args)
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object *self;
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object *args;
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{
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extern int fclose PROTO((FILE *));
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int fd;
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char *mode;
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FILE *fp;
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if (!getargs(args, "(is)", &fd, &mode))
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return NULL;
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BGN_SAVE
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fp = fdopen(fd, mode);
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END_SAVE
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if (fp == NULL)
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return mac_error();
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return newopenfileobject(fp, "(fdopen)", mode, fclose);
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}
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#endif /* MPW */
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static object *
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mac_getbootvol(self, args)
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object *self;
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object *args;
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{
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char *res;
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if (!getnoarg(args))
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return NULL;
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BGN_SAVE
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res = getbootvol();
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END_SAVE
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if (res == NULL)
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return mac_error();
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return newstringobject(res);
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}
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static object *
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mac_getcwd(self, args)
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object *self;
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object *args;
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{
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char path[MAXPATHLEN];
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char *res;
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if (!getnoarg(args))
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return NULL;
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BGN_SAVE
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res = getwd(path);
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END_SAVE
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if (res == NULL) {
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err_setstr(MacError, path);
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return NULL;
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}
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return newstringobject(res);
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}
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static object *
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mac_listdir(self, args)
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object *self;
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object *args;
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{
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char *name;
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object *d, *v;
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DIR *dirp;
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struct dirent *ep;
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if (!getargs(args, "s", &name))
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return NULL;
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BGN_SAVE
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if ((dirp = opendir(name)) == NULL) {
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RET_SAVE
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return mac_error();
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}
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if ((d = newlistobject(0)) == NULL) {
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closedir(dirp);
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RET_SAVE
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return NULL;
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}
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while ((ep = readdir(dirp)) != NULL) {
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v = newstringobject(ep->d_name);
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if (v == NULL) {
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DECREF(d);
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d = NULL;
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break;
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}
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if (addlistitem(d, v) != 0) {
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DECREF(v);
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DECREF(d);
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d = NULL;
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break;
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}
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DECREF(v);
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}
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closedir(dirp);
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END_SAVE
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return d;
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}
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static object *
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mac_lseek(self, args)
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object *self;
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object *args;
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{
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int fd;
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int where;
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int how;
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long res;
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if (!getargs(args, "(iii)", &fd, &where, &how))
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return NULL;
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BGN_SAVE
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res = lseek(fd, (long)where, how);
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END_SAVE
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if (res < 0)
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return mac_error();
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return newintobject(res);
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}
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static object *
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mac_mkdir(self, args)
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object *self;
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object *args;
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{
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return mac_strint(args, mkdir);
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}
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static object *
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mac_open(self, args)
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object *self;
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object *args;
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{
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char *path;
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int mode;
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int fd;
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if (!getargs(args, "(si)", &path, &mode))
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return NULL;
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BGN_SAVE
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fd = open(path, mode);
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END_SAVE
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if (fd < 0)
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return mac_error();
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return newintobject((long)fd);
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}
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static object *
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mac_read(self, args)
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object *self;
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object *args;
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{
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int fd, size;
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object *buffer;
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if (!getargs(args, "(ii)", &fd, &size))
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return NULL;
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buffer = newsizedstringobject((char *)NULL, size);
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if (buffer == NULL)
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return NULL;
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BGN_SAVE
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size = read(fd, getstringvalue(buffer), size);
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END_SAVE
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if (size < 0) {
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DECREF(buffer);
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return mac_error();
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}
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resizestring(&buffer, size);
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return buffer;
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}
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static object *
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mac_rename(self, args)
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object *self;
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object *args;
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{
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return mac_2str(args, rename);
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}
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static object *
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mac_rmdir(self, args)
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object *self;
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object *args;
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{
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return mac_1str(args, rmdir);
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}
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static object *
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mac_stat(self, args)
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object *self;
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object *args;
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{
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struct stat st;
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char *path;
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int res;
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if (!getargs(args, "s", &path))
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return NULL;
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BGN_SAVE
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res = stat(path, &st);
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END_SAVE
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if (res != 0)
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return mac_error();
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return mkvalue("(llllllllll)",
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(long)st.st_mode,
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0L /* st_ino */,
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(long)st.st_dev,
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(long)st.st_nlink,
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(long)st.st_uid,
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(long)st.st_gid,
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(long)st.st_size,
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(long)st.st_atime,
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(long)st.st_mtime,
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(long)st.st_ctime);
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}
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static object *
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mac_sync(self, args)
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object *self;
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object *args;
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{
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int res;
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if (!getnoarg(args))
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return NULL;
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BGN_SAVE
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res = sync();
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END_SAVE
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if (res != 0)
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return mac_error();
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INCREF(None);
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return None;
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}
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static object *
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mac_unlink(self, args)
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object *self;
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object *args;
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{
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return mac_1str(args, unlink);
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}
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static object *
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mac_write(self, args)
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object *self;
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object *args;
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{
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int fd, size;
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char *buffer;
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if (!getargs(args, "(is#)", &fd, &buffer, &size))
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return NULL;
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BGN_SAVE
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size = write(fd, buffer, size);
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END_SAVE
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if (size < 0)
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return mac_error();
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return newintobject((long)size);
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}
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static struct methodlist mac_methods[] = {
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{"chdir", mac_chdir},
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{"close", mac_close},
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#ifdef MPW
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{"dup", mac_dup},
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{"fdopen", mac_fdopen},
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#endif
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{"getbootvol", mac_getbootvol}, /* non-standard */
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{"getcwd", mac_getcwd},
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{"listdir", mac_listdir},
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{"lseek", mac_lseek},
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{"mkdir", mac_mkdir},
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{"open", mac_open},
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{"read", mac_read},
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{"rename", mac_rename},
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{"rmdir", mac_rmdir},
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{"stat", mac_stat},
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{"sync", mac_sync},
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{"unlink", mac_unlink},
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{"write", mac_write},
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{NULL, NULL} /* Sentinel */
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};
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void
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initmac()
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{
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object *m, *d, *v;
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m = initmodule("mac", mac_methods);
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d = getmoduledict(m);
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/* Initialize mac.error exception */
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MacError = newstringobject("mac.error");
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if (MacError == NULL || dictinsert(d, "error", MacError) != 0)
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fatal("can't define mac.error");
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}
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