home *** CD-ROM | disk | FTP | other *** search
- /*-
- * Copyright (c) 1991 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Kenneth Almquist.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)mail.c 5.1 (Berkeley) 3/7/91";
- #endif /* not lint */
-
- /*
- * Routines to check for mail. (Perhaps make part of main.c?)
- */
-
- #include "shell.h"
- #include "exec.h" /* defines padvance() */
- #include "var.h"
- #include "output.h"
- #include "memalloc.h"
- #include "error.h"
- #include <sys/types.h>
- #include <sys/stat.h>
-
-
- #define MAXMBOXES 10
-
-
- STATIC int nmboxes; /* number of mailboxes */
- STATIC time_t mailtime[MAXMBOXES]; /* times of mailboxes */
-
-
-
- /*
- * Print appropriate message(s) if mail has arrived. If the argument is
- * nozero, then the value of MAIL has changed, so we just update the
- * values.
- */
-
- void
- chkmail(silent) {
- register int i;
- char *mpath;
- char *p;
- register char *q;
- struct stackmark smark;
- struct stat statb;
-
- if (silent)
- nmboxes = 10;
- if (nmboxes == 0)
- return;
- setstackmark(&smark);
- mpath = mpathset()? mpathval() : mailval();
- for (i = 0 ; i < nmboxes ; i++) {
- p = padvance(&mpath, nullstr);
- if (p == NULL)
- break;
- if (*p == '\0')
- continue;
- for (q = p ; *q ; q++);
- if (q[-1] != '/')
- abort();
- q[-1] = '\0'; /* delete trailing '/' */
- #ifdef notdef /* this is what the System V shell claims to do (it lies) */
- if (stat(p, &statb) < 0)
- statb.st_mtime = 0;
- if (statb.st_mtime > mailtime[i] && ! silent) {
- out2str(pathopt? pathopt : "you have mail");
- out2c('\n');
- }
- mailtime[i] = statb.st_mtime;
- #else /* this is what it should do */
- if (stat(p, &statb) < 0)
- statb.st_size = 0;
- if (statb.st_size > mailtime[i] && ! silent) {
- out2str(pathopt? pathopt : "you have mail");
- out2c('\n');
- }
- mailtime[i] = statb.st_size;
- #endif
- }
- nmboxes = i;
- popstackmark(&smark);
- }
-