shadow/libmisc/mail.c
Alejandro Colomar efbbcade43 Use safer allocation macros
Use of these macros, apart from the benefits mentioned in the commit
that adds the macros, has some other good side effects:

-  Consistency in getting the size of the object from sizeof(type),
   instead of a mix of sizeof(type) sometimes and sizeof(*p) other
   times.

-  More readable code: no casts, and no sizeof(), so also shorter lines
   that we don't need to cut.

-  Consistency in using array allocation calls for allocations of arrays
   of objects, even when the object size is 1.

Cc: Valentin V. Bartenev <vbartenev@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2023-02-23 20:28:43 -06:00

71 lines
1.4 KiB
C

/*
* SPDX-FileCopyrightText: 1989 - 1991, Julianne Frances Haugh
* SPDX-FileCopyrightText: 1996 - 1998, Marek Michałkiewicz
* SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
* SPDX-FileCopyrightText: 2008 , Nicolas François
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <config.h>
#include "prototypes.h"
#include "defines.h"
#include <assert.h>
#include <sys/stat.h>
#include <stdio.h>
#include <string.h>
#include "alloc.h"
#include "getdef.h"
#ident "$Id$"
void mailcheck (void)
{
struct stat statbuf;
char *mailbox;
if (!getdef_bool ("MAIL_CHECK_ENAB")) {
return;
}
/*
* Check incoming mail in Maildir format - J.
*/
mailbox = getenv ("MAILDIR");
if (NULL != mailbox) {
char *newmail;
size_t len = strlen (mailbox) + 5;
int wlen;
newmail = XMALLOCARRAY (len, char);
wlen = snprintf (newmail, len, "%s/new", mailbox);
assert (wlen == (int) len - 1);
if (stat (newmail, &statbuf) != -1 && statbuf.st_size != 0) {
if (statbuf.st_mtime > statbuf.st_atime) {
free (newmail);
(void) puts (_("You have new mail."));
return;
}
}
free (newmail);
}
mailbox = getenv ("MAIL");
if (NULL == mailbox) {
return;
}
if ( (stat (mailbox, &statbuf) == -1)
|| (statbuf.st_size == 0)) {
(void) puts (_("No mail."));
} else if (statbuf.st_atime > statbuf.st_mtime) {
(void) puts (_("You have mail."));
} else {
(void) puts (_("You have new mail."));
}
}