mirror of
https://github.com/freebsd/freebsd-src
synced 2024-10-15 12:54:27 +00:00
Cleanups for mailwrapper(8):
- K&R -> ANSI prototype [O] - Do not bother to do free right before exit() or execve() [O] - Remove some dead code in addarg() - Make additional parameters specified in mailer.conf(5) actually work and document the fact. [N] - Avoid using __progname but instead use getprogname() and setprogname() to provide more sensible messages. [O, N] - Update $OpenBSD$ and $NetBSD$ to reflect the fact that we have sync'ed with their code. - WARNS=6 Obtained from/Inspired by: OpenBSD [O], NetBSD [N] (partially)
This commit is contained in:
parent
ed48a217f6
commit
8fe1b8c03e
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=159326
|
@ -31,7 +31,7 @@
|
|||
.\"
|
||||
.\" $FreeBSD$
|
||||
.\"
|
||||
.Dd December 16, 1998
|
||||
.Dd May 31, 2006
|
||||
.Dt MAILER.CONF 5
|
||||
.Os
|
||||
.Sh NAME
|
||||
|
@ -41,29 +41,59 @@
|
|||
.Sh DESCRIPTION
|
||||
The file
|
||||
.Pa /etc/mail/mailer.conf
|
||||
contains a series of pairs.
|
||||
The first member of each pair is the name
|
||||
contains a series of lines of the form
|
||||
.Pp
|
||||
.Pa name
|
||||
.Pa program
|
||||
.Op Ar arguments ...
|
||||
.Pp
|
||||
The first word of each line is the
|
||||
.Pa name
|
||||
of a program invoking
|
||||
.Xr mailwrapper 8
|
||||
which is typically a symbolic link to
|
||||
.Pa /usr/sbin/sendmail .
|
||||
(On a typical system,
|
||||
.Xr mailwrapper 8 .
|
||||
(For example, on a typical system
|
||||
.Pa /usr/sbin/sendmail
|
||||
would be a symbolic link to
|
||||
.Xr mailwrapper 8 ,
|
||||
as would
|
||||
.Xr newaliases 1
|
||||
and
|
||||
.Xr mailq 1
|
||||
would be set up this way.)
|
||||
The second member of each pair is the name of the program to
|
||||
actually execute when the first name is invoked.
|
||||
The file may also
|
||||
contain comments, denoted by a # mark in the first column of any line.
|
||||
.Xr mailq 1 .
|
||||
Thus,
|
||||
.Pa name
|
||||
might be
|
||||
.Dq sendmail
|
||||
or
|
||||
.Dq newaliases
|
||||
etc.)
|
||||
.Pp
|
||||
The second word of each line is the name of the
|
||||
.Pa program
|
||||
to actually execute when the first name is invoked.
|
||||
.Pp
|
||||
The further
|
||||
.Ar arguments ,
|
||||
if any, are passed to the
|
||||
.Pa program ,
|
||||
followed by the arguments
|
||||
.Xr mailwrapper 8
|
||||
was called with.
|
||||
.Pp
|
||||
The file may also contain comment lines, denoted by a
|
||||
.Sq #
|
||||
mark in the first column of any line.
|
||||
first column of any line.
|
||||
.Sh FILES
|
||||
/etc/mail/mailer.conf
|
||||
.Sh EXAMPLES
|
||||
The following is an example of how to set up an
|
||||
This example shows how to set up
|
||||
.Nm
|
||||
for traditional sendmail invocation behavior.
|
||||
.Bd -literal
|
||||
# Execute the "real" sendmail program, named /usr/libexec/sendmail/sendmail
|
||||
to invoke the traditional
|
||||
.Xr sendmail 8
|
||||
program:
|
||||
.Bd -literal -offset indent
|
||||
# Execute the "real" sendmail program located in
|
||||
# /usr/libexec/sendmail/sendmail
|
||||
sendmail /usr/libexec/sendmail/sendmail
|
||||
send-mail /usr/libexec/sendmail/sendmail
|
||||
mailq /usr/libexec/sendmail/sendmail
|
||||
|
@ -71,20 +101,35 @@ newaliases /usr/libexec/sendmail/sendmail
|
|||
.Ed
|
||||
.Pp
|
||||
This example shows how to invoke a sendmail-workalike like Postfix in
|
||||
place of sendmail.
|
||||
.Bd -literal
|
||||
place of
|
||||
.Xr sendmail 8 :
|
||||
.Bd -literal -offset indent
|
||||
# Emulate sendmail using postfix
|
||||
sendmail /usr/local/sbin/sendmail
|
||||
send-mail /usr/local/sbin/sendmail
|
||||
mailq /usr/local/sbin/sendmail
|
||||
newaliases /usr/local/sbin/sendmail
|
||||
.Ed
|
||||
.Pp
|
||||
This example shows the use of the mini_sendmail package from ports
|
||||
in place of
|
||||
.Xr sendmail 8 :
|
||||
Note the use of additional arguments.
|
||||
.Bd -literal -offset indent
|
||||
# Send outgoing mail to a smart relay using mini_sendmail
|
||||
sendmail /usr/local/bin/mini_sendmail -srelayhost
|
||||
send-mail /usr/local/bin/mini_sendmail -srelayhost
|
||||
.Ed
|
||||
.Sh SEE ALSO
|
||||
.Xr mail 1 ,
|
||||
.Xr mailq 1 ,
|
||||
.Xr newaliases 1 ,
|
||||
.Xr mailwrapper 8 ,
|
||||
.Xr sendmail 8
|
||||
.Pp
|
||||
.Xr postfix 1
|
||||
.Pq Pa ports/mail/postfix ,
|
||||
.Xr mini_sendmail 8 Pq Pa ports/mail/mini_sendmail
|
||||
.Sh HISTORY
|
||||
.Nm
|
||||
appeared in
|
||||
|
|
|
@ -8,6 +8,7 @@ MAN= mailwrapper.8
|
|||
|
||||
DPADD= ${LIBUTIL}
|
||||
LDADD= -lutil
|
||||
WARNS?= 6
|
||||
.endif
|
||||
|
||||
.if ${MK_MAILWRAPPER} != "no" || ${MK_SENDMAIL} != "no"
|
||||
|
|
|
@ -1,5 +1,5 @@
|
|||
/* $OpenBSD: mailwrapper.c,v 1.6 1999/12/17 05:06:28 mickey Exp $ */
|
||||
/* $NetBSD: mailwrapper.c,v 1.3 1999/05/29 18:18:15 christos Exp $ */
|
||||
/* $OpenBSD: mailwrapper.c,v 1.15 2003/03/09 01:24:26 millert Exp $ */
|
||||
/* $NetBSD: mailwrapper.c,v 1.7 2003/02/17 21:18:46 is Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1998
|
||||
|
@ -38,11 +38,11 @@ __FBSDID("$FreeBSD$");
|
|||
#include <err.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <stdlib.h>
|
||||
#include <libutil.h>
|
||||
#include <sysexits.h>
|
||||
#include <syslog.h>
|
||||
#include <stdarg.h>
|
||||
|
||||
#include "pathnames.h"
|
||||
|
||||
|
@ -54,93 +54,66 @@ struct arglist {
|
|||
int main(int, char *[], char *[]);
|
||||
|
||||
static void initarg(struct arglist *);
|
||||
static void addarg(struct arglist *, const char *, int);
|
||||
static void freearg(struct arglist *, int);
|
||||
|
||||
extern const char *__progname; /* from crt0.o */
|
||||
static void addarg(struct arglist *, const char *);
|
||||
|
||||
static void
|
||||
initarg(al)
|
||||
struct arglist *al;
|
||||
initarg(struct arglist *al)
|
||||
{
|
||||
al->argc = 0;
|
||||
al->maxc = 10;
|
||||
if ((al->argv = malloc(al->maxc * sizeof(char *))) == NULL)
|
||||
err(1, NULL);
|
||||
err(EX_TEMPFAIL, "malloc");
|
||||
}
|
||||
|
||||
static void
|
||||
addarg(al, arg, copy)
|
||||
struct arglist *al;
|
||||
const char *arg;
|
||||
int copy;
|
||||
addarg(struct arglist *al, const char *arg)
|
||||
{
|
||||
char **argv2;
|
||||
|
||||
if (al->argc == al->maxc) {
|
||||
al->maxc <<= 1;
|
||||
|
||||
if ((argv2 = realloc(al->argv,
|
||||
al->maxc * sizeof(char *))) == NULL) {
|
||||
if (al->argv)
|
||||
free(al->argv);
|
||||
al->argv = NULL;
|
||||
err(1, NULL);
|
||||
} else {
|
||||
al->argv = argv2;
|
||||
al->argv = realloc(al->argv, al->maxc * sizeof(char *));
|
||||
if (al->argv == NULL)
|
||||
err(EX_TEMPFAIL, "realloc");
|
||||
}
|
||||
}
|
||||
if (copy) {
|
||||
if ((al->argv[al->argc++] = strdup(arg)) == NULL)
|
||||
err(1, NULL);
|
||||
} else
|
||||
al->argv[al->argc++] = (char *)arg;
|
||||
}
|
||||
|
||||
static void
|
||||
freearg(al, copy)
|
||||
struct arglist *al;
|
||||
int copy;
|
||||
{
|
||||
size_t i;
|
||||
if (copy)
|
||||
for (i = 0; i < al->argc; i++)
|
||||
free(al->argv[i]);
|
||||
free(al->argv);
|
||||
if (arg == NULL)
|
||||
al->argv[al->argc++] = NULL;
|
||||
else if ((al->argv[al->argc++] = strdup(arg)) == NULL)
|
||||
err(EX_TEMPFAIL, "strdup");
|
||||
}
|
||||
|
||||
int
|
||||
main(argc, argv, envp)
|
||||
int argc;
|
||||
char *argv[];
|
||||
char *envp[];
|
||||
main(int argc, char *argv[], char *envp[])
|
||||
{
|
||||
FILE *config;
|
||||
char *line, *cp, *from, *to, *ap;
|
||||
const char *progname;
|
||||
size_t len, lineno = 0;
|
||||
int i;
|
||||
struct arglist al;
|
||||
|
||||
/* change __progname to mailwrapper so we get sensible error messages */
|
||||
progname = getprogname();
|
||||
setprogname("mailwrapper");
|
||||
|
||||
initarg(&al);
|
||||
for (len = 0; len < argc; len++)
|
||||
addarg(&al, argv[len], 0);
|
||||
addarg(&al, argv[0]);
|
||||
|
||||
if ((config = fopen(_PATH_MAILERCONF, "r")) == NULL) {
|
||||
addarg(&al, NULL, 0);
|
||||
openlog("mailwrapper", LOG_PID, LOG_MAIL);
|
||||
syslog(LOG_INFO, "can't open %s, using %s as default MTA",
|
||||
addarg(&al, NULL);
|
||||
openlog(getprogname(), LOG_PID, LOG_MAIL);
|
||||
syslog(LOG_INFO, "cannot open %s, using %s as default MTA",
|
||||
_PATH_MAILERCONF, _PATH_DEFAULTMTA);
|
||||
closelog();
|
||||
execve(_PATH_DEFAULTMTA, al.argv, envp);
|
||||
freearg(&al, 0);
|
||||
err(1, "execing %s", _PATH_DEFAULTMTA);
|
||||
err(EX_OSERR, "cannot exec %s", _PATH_DEFAULTMTA);
|
||||
/*NOTREACHED*/
|
||||
}
|
||||
|
||||
for (;;) {
|
||||
if ((line = fparseln(config, &len, &lineno, NULL, 0)) == NULL) {
|
||||
if (feof(config))
|
||||
errx(1, "no mapping in %s", _PATH_MAILERCONF);
|
||||
err(1, "can't parse line %lu", (u_long)lineno);
|
||||
errx(EX_CONFIG, "no mapping in %s", _PATH_MAILERCONF);
|
||||
err(EX_CONFIG, "cannot parse line %lu", (u_long)lineno);
|
||||
}
|
||||
|
||||
#define WS " \t\n"
|
||||
|
@ -161,11 +134,12 @@ main(argc, argv, envp)
|
|||
if ((to = strsep(&cp, WS)) == NULL)
|
||||
goto parse_error;
|
||||
|
||||
if (strcmp(from, __progname) == 0) {
|
||||
if (strcmp(from, progname) == 0) {
|
||||
for (ap = strsep(&cp, WS); ap != NULL;
|
||||
ap = strsep(&cp, WS))
|
||||
ap = strsep(&cp, WS)) {
|
||||
if (*ap)
|
||||
addarg(&al, ap, 0);
|
||||
addarg(&al, ap);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
|
@ -174,17 +148,15 @@ main(argc, argv, envp)
|
|||
|
||||
(void)fclose(config);
|
||||
|
||||
addarg(&al, NULL, 0);
|
||||
for (i = 1; i < argc; i++)
|
||||
addarg(&al, argv[i]);
|
||||
|
||||
addarg(&al, NULL);
|
||||
execve(to, al.argv, envp);
|
||||
freearg(&al, 0);
|
||||
warn("execing %s", to);
|
||||
free(line);
|
||||
exit(1);
|
||||
err(EX_OSERR, "cannot exec %s", to);
|
||||
/*NOTREACHED*/
|
||||
parse_error:
|
||||
freearg(&al, 0);
|
||||
free(line);
|
||||
errx(1, "parse error in %s at line %lu",
|
||||
errx(EX_CONFIG, "parse error in %s at line %lu",
|
||||
_PATH_MAILERCONF, (u_long)lineno);
|
||||
/*NOTREACHED*/
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue