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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/smtpd/smtpd/../delivery_maildir.c	Lines:	0	64	0.0 %
Date:	2017-11-13	Branches:	0	72	0.0 %


/*	$OpenBSD: delivery_maildir.c,v 1.18 2016/08/31 10:18:08 gilles Exp $	*/

/*
 * Copyright (c) 2011 Gilles Chehade <gilles@poolp.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>
#include <sys/queue.h>
#include <sys/tree.h>
#include <sys/socket.h>
#include <sys/stat.h>

#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <event.h>
#include <fcntl.h>
#include <imsg.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <limits.h>

#include "smtpd.h"
#include "log.h"

extern char	**environ;

/* maildir backend */
static void delivery_maildir_open(struct deliver *);
static int mailaddr_tag(const struct mailaddr *, char *, size_t);

struct delivery_backend delivery_backend_maildir = {
	1, delivery_maildir_open
};

static int
mailaddr_tag(const struct mailaddr *maddr, char *dest, size_t len)
{
	char		*tag;
	char		*sanitized;

	if ((tag = strchr(maddr->user, *env->sc_subaddressing_delim))) {
		tag++;
		while (*tag == '.')
			tag++;
	}
	if (tag == NULL)
		return 1;

	if (strlcpy(dest, tag, len) >= len)
		return 0;
	for (sanitized = dest; *sanitized; sanitized++)
		if (strchr(MAILADDR_ESCAPE, *sanitized))
			*sanitized = ':';
	return 1;
}

static void
delivery_maildir_open(struct deliver *deliver)
{
	char	 tmp[PATH_MAX], new[PATH_MAX], tag[PATH_MAX];
	int	 ch, fd;
	FILE	*fp;
	char	*msg;
	int	 n;
	const char	*chd;
	struct mailaddr	maddr;
	struct stat	sb;

#define error(m)	{ msg = m; goto err; }
#define error2(m)	{ msg = m; goto err2; }

	setproctitle("maildir delivery");

	memset(&maddr, 0, sizeof maddr);
	if (!text_to_mailaddr(&maddr, deliver->dest))
		error("cannot parse destination address");

	memset(tag, 0, sizeof tag);
	if (!mailaddr_tag(&maddr, tag, sizeof tag))
		error("cannot extract tag from destination address");

	if (mkdirs(deliver->to, 0700) < 0 && errno != EEXIST)
		error("cannot mkdir maildir");
	chd = deliver->to;

	if (tag[0]) {
		(void)snprintf(tmp, sizeof tmp, "%s/.%s", deliver->to, tag);
		if (stat(tmp, &sb) != -1)
			chd = tmp;
	}

	if (chdir(chd) < 0)
		error("cannot cd to maildir");
	if (mkdir("cur", 0700) < 0 && errno != EEXIST)
		error("mkdir cur failed");
	if (mkdir("tmp", 0700) < 0 && errno != EEXIST)
		error("mkdir tmp failed");
	if (mkdir("new", 0700) < 0 && errno != EEXIST)
		error("mkdir new failed");
	(void)snprintf(tmp, sizeof tmp, "tmp/%lld.%d.%s",
	    (long long int) time(NULL),
	    getpid(), env->sc_hostname);
	fd = open(tmp, O_CREAT | O_EXCL | O_WRONLY, 0600);
	if (fd < 0)
		error("cannot open tmp file");
	fp = fdopen(fd, "w");
	if (fp == NULL)
		error2("fdopen");
	while ((ch = getc(stdin)) != EOF)
		if (putc(ch, fp) == EOF)
			break;
	if (ferror(stdin))
		error2("read error");
	if (fflush(fp) == EOF || ferror(fp))
		error2("write error");
	if (fsync(fd) < 0)
		error2("fsync");
	if (fclose(fp) == EOF)
		error2("fclose");
	(void)snprintf(new, sizeof new, "new/%s", tmp + 4);
	if (rename(tmp, new) < 0)
		error2("cannot rename tmp->new");
	_exit(0);

err2:
	n = errno;
	unlink(tmp);
	errno = n;
err:
	perror(msg);
	_exit(1);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: delivery_maildir.c,v 1.18 2016/08/31 10:18:08 gilles Exp $ */
2
3			/*
4			* Copyright (c) 2011 Gilles Chehade <gilles@poolp.org>
5			*
6			* Permission to use, copy, modify, and distribute this software for any
7			* purpose with or without fee is hereby granted, provided that the above
8			* copyright notice and this permission notice appear in all copies.
9			*
10			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17			*/
18
19			#include <sys/types.h>
20			#include <sys/queue.h>
21			#include <sys/tree.h>
22			#include <sys/socket.h>
23			#include <sys/stat.h>
24
25			#include <ctype.h>
26			#include <err.h>
27			#include <errno.h>
28			#include <event.h>
29			#include <fcntl.h>
30			#include <imsg.h>
31			#include <paths.h>
32			#include <stdio.h>
33			#include <stdlib.h>
34			#include <string.h>
35			#include <time.h>
36			#include <unistd.h>
37			#include <limits.h>
38
39			#include "smtpd.h"
40			#include "log.h"
41
42			extern char **environ;
43
44			/* maildir backend */
45			static void delivery_maildir_open(struct deliver *);
46			static int mailaddr_tag(const struct mailaddr , char , size_t);
47
48			struct delivery_backend delivery_backend_maildir = {
49			1, delivery_maildir_open
50			};
51
52			static int
53			mailaddr_tag(const struct mailaddr maddr, char dest, size_t len)
54			{
55			char *tag;
56			char *sanitized;
57
58			if ((tag = strchr(maddr->user, *env->sc_subaddressing_delim))) {
59			tag++;
60			while (*tag == '.')
61			tag++;
62			}
63			if (tag == NULL)
64			return 1;
65
66			if (strlcpy(dest, tag, len) >= len)
67			return 0;
68			for (sanitized = dest; *sanitized; sanitized++)
69			if (strchr(MAILADDR_ESCAPE, *sanitized))
70			*sanitized = ':';
71			return 1;
72			}
73
74			static void
75			delivery_maildir_open(struct deliver *deliver)
76			{
77			char tmp[PATH_MAX], new[PATH_MAX], tag[PATH_MAX];
78			int ch, fd;
79			FILE *fp;
80			char *msg;
81			int n;
82			const char *chd;
83			struct mailaddr maddr;
84			struct stat sb;
85
86			#define error(m) { msg = m; goto err; }
87			#define error2(m) { msg = m; goto err2; }
88
89			setproctitle("maildir delivery");
90
91			memset(&maddr, 0, sizeof maddr);
92			if (!text_to_mailaddr(&maddr, deliver->dest))
93			error("cannot parse destination address");
94
95			memset(tag, 0, sizeof tag);
96			if (!mailaddr_tag(&maddr, tag, sizeof tag))
97			error("cannot extract tag from destination address");
98
99			if (mkdirs(deliver->to, 0700) < 0 && errno != EEXIST)
100			error("cannot mkdir maildir");
101			chd = deliver->to;
102
103			if (tag[0]) {
104			(void)snprintf(tmp, sizeof tmp, "%s/.%s", deliver->to, tag);
105			if (stat(tmp, &sb) != -1)
106			chd = tmp;
107			}
108
109			if (chdir(chd) < 0)
110			error("cannot cd to maildir");
111			if (mkdir("cur", 0700) < 0 && errno != EEXIST)
112			error("mkdir cur failed");
113			if (mkdir("tmp", 0700) < 0 && errno != EEXIST)
114			error("mkdir tmp failed");
115			if (mkdir("new", 0700) < 0 && errno != EEXIST)
116			error("mkdir new failed");
117			(void)snprintf(tmp, sizeof tmp, "tmp/%lld.%d.%s",
118			(long long int) time(NULL),
119			getpid(), env->sc_hostname);
120			fd = open(tmp, O_CREAT \| O_EXCL \| O_WRONLY, 0600);
121			if (fd < 0)
122			error("cannot open tmp file");
123			fp = fdopen(fd, "w");
124			if (fp == NULL)
125			error2("fdopen");
126			while ((ch = getc(stdin)) != EOF)
127			if (putc(ch, fp) == EOF)
128			break;
129			if (ferror(stdin))
130			error2("read error");
131			if (fflush(fp) == EOF \|\| ferror(fp))
132			error2("write error");
133			if (fsync(fd) < 0)
134			error2("fsync");
135			if (fclose(fp) == EOF)
136			error2("fclose");
137			(void)snprintf(new, sizeof new, "new/%s", tmp + 4);
138			if (rename(tmp, new) < 0)
139			error2("cannot rename tmp->new");
140			_exit(0);
141
142			err2:
143			n = errno;
144			unlink(tmp);
145			errno = n;
146			err:
147			perror(msg);
148			_exit(1);
149			}