f425ed489c
o remove panic() in favor of err(3) and use err(3) functions consistently throughout o use stat(2)'s S_IS* macros rather than S_IF* o [r]index -> str[r]chr o convert some static buffers to dynamic ones o use real tempfiles rather than reopening the same templates o rename some functions that clash with libc o convert wait_status from union to int and use wait(2) status macros o fix multiple potential buffer overflows o fix a few comments o add $FreeBSD$ Reviewed by: nra, nectar (earlier version)
100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)v7.local.c 8.1 (Berkeley) 6/6/93";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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/*
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* Mail -- a mail program
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*
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* Version 7
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*
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* Local routines that are installation dependent.
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*/
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#include "rcv.h"
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#include <fcntl.h>
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#include "extern.h"
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/*
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* Locate the user's mailbox file (ie, the place where new, unread
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* mail is queued).
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*/
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void
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findmail(user, buf, buflen)
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char *user, *buf;
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int buflen;
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{
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char *tmp = getenv("MAIL");
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if (tmp == NULL)
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(void)snprintf(buf, buflen, "%s/%s", _PATH_MAILDIR, user);
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else
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(void)strlcpy(buf, tmp, buflen);
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}
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/*
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* Get rid of the queued mail.
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*/
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void
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demail()
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{
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if (value("keep") != NOSTR || rm(mailname) < 0)
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close(open(mailname, O_CREAT | O_TRUNC | O_WRONLY, 0600));
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}
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/*
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* Discover user login name.
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*/
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char *
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username()
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{
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char *np;
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uid_t uid;
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if ((np = getenv("USER")) != NOSTR)
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return np;
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if ((np = getenv("LOGNAME")) != NOSTR)
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return np;
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if ((np = getname(uid = getuid())) != NOSTR)
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return np;
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printf("Cannot associate a name with uid %u\n", (unsigned)uid);
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return NOSTR;
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}
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