* Add a command-line option to enable debugging mode, which sends error
messages to stderr instead of syslog. * Fix manpage with respect to diagnostics. Reported by: rfg@monkeys.com (Ronald F. Guilmette)
This commit is contained in:
sheldonh
parent
abd825f27c
commit
5de41d182a
@ -30,7 +30,7 @@
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.\" SUCH DAMAGE.
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.\"
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.\" From: @(#)vacation.1 8.1 (Berkeley) 6/16/93
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.\" $Id$
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.\" $Id: vacation.1,v 1.6 1997/02/22 19:57:38 peter Exp $
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.\"
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.Dd June 16, 1993
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.Dt VACATION 1
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@ -40,11 +40,14 @@
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.Nd return ``I am not here'' indication
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.Sh SYNOPSIS
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.Nm vacation
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.Op Fl d
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.Fl i
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.Op Fl r Ar interval
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.Nm vacation
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.Op Fl d
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.Fl l
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.Nm vacation
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.Op Fl d
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.Op Fl a Ar alias
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.Ar login
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.Sh DESCRIPTION
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@ -71,6 +74,8 @@ Handle messages for
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.Ar alias
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in the same manner as those received for the user's
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login name.
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.It Fl d
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Enable debugging mode. See below.
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.It Fl i
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Initialize the vacation database files. It should be used
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before you modify your
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@ -160,7 +165,14 @@ Fatal errors, such as calling
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with incorrect arguments, or with non-existent
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.Ar login Ns Ar s ,
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are logged in the system log file, using
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.Xr syslog 3 .
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.Xr syslog 3
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unless debugging mode is enabled with the
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.Fl d
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option, in which case they are written to the standard error output.
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.Sh DIAGNOSTICS
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The
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.Nm
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utility exits 0 on success, and >0 if an error occurs.
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.Sh FILES
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.Bl -tag -width "vacation.dirxxx" -compact
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.It Pa ~/.vacation.db
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@ -42,7 +42,7 @@ static const char copyright[] =
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static char sccsid[] = "@(#)from: vacation.c 8.2 (Berkeley) 1/26/94";
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#endif
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static const char rcsid[] =
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"$Id: vacation.c,v 1.12 1997/11/03 07:51:05 charnier Exp $";
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"$Id: vacation.c,v 1.13 1998/10/13 14:52:32 des Exp $";
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#endif /* not lint */
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/*
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@ -62,8 +62,10 @@ static const char rcsid[] =
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#include <unistd.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include <paths.h>
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/*
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@ -88,6 +90,7 @@ ALIAS *names;
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DB *db;
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char from[MAXLINE];
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void (*msglog)(int, const char *, ...) = &syslog;
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static int isdelim __P((int));
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static int junkmail __P((void));
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@ -99,6 +102,7 @@ static void sendmessage __P((char *));
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static void setinterval __P((time_t));
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static void setreply __P((void));
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static void usage __P((void));
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static void debuglog __P((int, const char *, ...));
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int
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main(argc, argv)
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@ -110,19 +114,24 @@ main(argc, argv)
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struct passwd *pw;
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ALIAS *cur;
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time_t interval;
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int ch, iflag, lflag;
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int ch, iflag, lflag, mfail;
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opterr = iflag = lflag = 0;
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opterr = iflag = lflag = mfail = 0;
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interval = -1;
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while ((ch = getopt(argc, argv, "a:Iilr:")) != -1)
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while ((ch = getopt(argc, argv, "a:dIilr:")) != -1) {
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switch((char)ch) {
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case 'a': /* alias */
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if (!(cur = (ALIAS *)malloc((u_int)sizeof(ALIAS))))
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if (!(cur = (ALIAS *)malloc((u_int)sizeof(ALIAS)))) {
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mfail++;
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break;
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}
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cur->name = optarg;
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cur->next = names;
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names = cur;
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break;
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case 'd': /* debug mode */
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msglog = &debuglog;
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break;
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case 'I': /* backward compatible */
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case 'i': /* init the database */
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iflag = 1;
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@ -143,6 +152,16 @@ main(argc, argv)
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default:
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usage();
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}
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}
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/* Only die on the above malloc failure here so that the
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* correct logging medium is used.
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*/
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if (mfail) {
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msglog(LOG_ERR, "vacation: malloc failed\n");
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exit(EX_TEMPFAIL);
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}
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argc -= optind;
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argv += optind;
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@ -150,17 +169,17 @@ main(argc, argv)
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if (!iflag && !lflag)
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usage();
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if (!(pw = getpwuid(getuid()))) {
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syslog(LOG_ERR,
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msglog(LOG_ERR,
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"vacation: no such user uid %u.\n", getuid());
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exit(1);
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}
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}
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else if (!(pw = getpwnam(*argv))) {
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syslog(LOG_ERR, "vacation: no such user %s.\n", *argv);
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msglog(LOG_ERR, "vacation: no such user %s.\n", *argv);
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exit(1);
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}
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if (chdir(pw->pw_dir)) {
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syslog(LOG_NOTICE,
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msglog(LOG_NOTICE,
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"vacation: no such directory %s.\n", pw->pw_dir);
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exit(1);
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}
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@ -168,7 +187,7 @@ main(argc, argv)
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db = dbopen(VDB, O_CREAT|O_RDWR | (iflag ? O_TRUNC : 0),
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S_IRUSR|S_IWUSR, DB_HASH, NULL);
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if (!db) {
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syslog(LOG_NOTICE, "vacation: %s: %s\n", VDB, strerror(errno));
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msglog(LOG_NOTICE, "vacation: %s: %s\n", VDB, strerror(errno));
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exit(1);
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}
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@ -182,8 +201,10 @@ main(argc, argv)
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exit(0);
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}
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if (!(cur = malloc((u_int)sizeof(ALIAS))))
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exit(1);
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if (!(cur = malloc((u_int)sizeof(ALIAS)))) {
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msglog(LOG_ERR, "vacation: malloc failed\n");
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exit(EX_TEMPFAIL);
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}
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cur->name = pw->pw_name;
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cur->next = names;
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names = cur;
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@ -263,7 +284,7 @@ findme: for (cur = names; !tome && cur; cur = cur->next)
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if (!tome)
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exit(0);
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if (!*from) {
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syslog(LOG_NOTICE, "vacation: no initial \"From\" line.\n");
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msglog(LOG_NOTICE, "vacation: no initial \"From\" line.\n");
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exit(1);
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}
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}
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@ -410,16 +431,16 @@ sendmessage(myname)
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mfp = fopen(VMSG, "r");
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if (mfp == NULL) {
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syslog(LOG_NOTICE, "vacation: no ~%s/%s file.\n", myname, VMSG);
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msglog(LOG_NOTICE, "vacation: no ~%s/%s file.\n", myname, VMSG);
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exit(1);
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}
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if (pipe(pvect) < 0) {
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syslog(LOG_ERR, "vacation: pipe: %s", strerror(errno));
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msglog(LOG_ERR, "vacation: pipe: %s", strerror(errno));
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exit(1);
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}
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i = fork();
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if (i < 0) {
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syslog(LOG_ERR, "vacation: fork: %s", strerror(errno));
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msglog(LOG_ERR, "vacation: fork: %s", strerror(errno));
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exit(1);
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}
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if (i == 0) {
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@ -428,7 +449,7 @@ sendmessage(myname)
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close(pvect[1]);
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close(fileno(mfp));
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execl(_PATH_SENDMAIL, "sendmail", "-f", myname, "--", from, NULL);
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syslog(LOG_ERR, "vacation: can't exec %s: %s",
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msglog(LOG_ERR, "vacation: can't exec %s: %s",
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_PATH_SENDMAIL, strerror(errno));
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_exit(1);
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}
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@ -444,7 +465,7 @@ sendmessage(myname)
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static void
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usage()
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{
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syslog(LOG_NOTICE, "uid %u: usage: vacation [-i [-rinterval]] [-l] [-a alias] login\n",
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msglog(LOG_NOTICE, "uid %u: usage: vacation [-d] [-i [-rinterval]] [-l] [-a alias] login\n",
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getuid());
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exit(1);
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}
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@ -486,3 +507,18 @@ isdelim(c)
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return(0);
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return(1);
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}
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/*
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* Append a message to the standard error for the convenience of end-users
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* debugging without access to the syslog messages.
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*/
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static void
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debuglog(int i, const char *fmt, ...)
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{
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va_list ap;
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i = 0; /* Printing syslog priority not implemented */
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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}
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