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f1dc566328
* many files: made some functions static; removed "extern int errno;". * frozenmain.c: fixed bugs introduced on 24 June... * flmodule.c: remove 1.5 bw compat hacks, add new functions in 2.2a (and some old functions that were omitted). * timemodule.c: added MSDOS floatsleep version . * pgenmain.c: changed exit() to goaway() and added defn of goaway(). * intrcheck.c: add hack (to UNIX only) so interrupting 3 times will exit from a hanging program. The second interrupt prints a message explaining this to the user.
101 lines
2.5 KiB
C
101 lines
2.5 KiB
C
/***********************************************************
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Copyright 1991, 1992, 1993 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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/* Two PD getcwd() implementations.
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Author: Guido van Rossum, CWI Amsterdam, Jan 1991, <guido@cwi.nl>. */
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/* #define NO_GETWD /* Turn this on to popen pwd instead of calling getwd() */
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#include <stdio.h>
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#include <errno.h>
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#ifndef NO_GETWD
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/* Default: Version for BSD systems -- use getwd() */
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#include "sys/param.h"
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extern char *getwd();
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char *
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getcwd(buf, size)
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char *buf;
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int size;
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{
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char localbuf[MAXPATHLEN+1];
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char *ret;
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if (size <= 0) {
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errno = EINVAL;
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return NULL;
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}
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ret = getwd(localbuf);
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if (ret != NULL && strlen(localbuf) >= size) {
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errno = ERANGE;
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return NULL;
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}
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if (ret == NULL) {
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errno = EACCES; /* Most likely error */
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return NULL;
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}
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strncpy(buf, localbuf, size);
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return buf;
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}
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#else
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/* NO_GETWD defined: Version for backward UNIXes -- popen /bin/pwd */
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#define PWD_CMD "/bin/pwd"
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char *
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getcwd(buf, size)
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char *buf;
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int size;
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{
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FILE *fp;
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char *p;
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int sts;
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if (size <= 0) {
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errno = EINVAL;
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return NULL;
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}
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if ((fp = popen(PWD_CMD, "r")) == NULL)
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return NULL;
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if (fgets(buf, size, fp) == NULL || (sts = pclose(fp)) != 0) {
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errno = EACCES; /* Most likely error */
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return NULL;
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}
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for (p = buf; *p != '\n'; p++) {
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if (*p == '\0') {
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errno = ERANGE;
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return NULL;
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}
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}
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*p = '\0';
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return buf;
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}
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#endif
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