/*
- * Copyright (c) 1994-1996,1998-2007 Todd C. Miller <Todd.Miller@courtesan.com>
+ * Copyright (c) 1994-1996, 1998-2010 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
+#include <sys/ioctl.h>
#include <sys/wait.h>
#include <stdio.h>
#ifdef STDC_HEADERS
#endif /* STDC_HEADERS */
#ifdef HAVE_STRING_H
# include <string.h>
-#else
-# ifdef HAVE_STRINGS_H
-# include <strings.h>
-# endif
#endif /* HAVE_STRING_H */
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif /* HAVE_STRINGS_H */
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
-#ifdef HAVE_ERR_H
-# include <err.h>
-#else
-# include "emul/err.h"
-#endif /* HAVE_ERR_H */
+#ifdef HAVE_SETLOCALE
+# include <locale.h>
+#endif /* HAVE_SETLOCALE */
+#ifdef HAVE_NL_LANGINFO
+# include <langinfo.h>
+#endif /* HAVE_NL_LANGINFO */
#include <pwd.h>
+#include <grp.h>
#include <signal.h>
#include <time.h>
#include <errno.h>
+#include <fcntl.h>
#include "sudo.h"
-#ifndef lint
-__unused static const char rcsid[] = "$Sudo: logging.c,v 1.168.2.14 2008/03/17 15:09:54 millert Exp $";
-#endif /* lint */
-
static void do_syslog __P((int, char *));
static void do_logfile __P((char *));
-static void send_mail __P((char *));
-static void mail_auth __P((int, char *));
-static char *get_timestr __P((void));
+static void send_mail __P((const char *fmt, ...));
+static int should_mail __P((int));
static void mysyslog __P((int, const char *, ...));
+static char *new_logline __P((const char *, int));
#define MAXSYSLOGTRIES 16 /* num of retries for broken syslogs */
closelog();
}
+#define FMT_FIRST "%8s : %s"
+#define FMT_CONTD "%8s : (command continued) %s"
+
/*
* Log a message to syslog, pre-pending the username and splitting the
* message into parts if it is longer than MAXSYSLOGLEN.
size_t len, maxlen;
char *p, *tmp, save;
const char *fmt;
- const char *fmt_first = "%8s : %s";
- const char *fmt_contd = "%8s : (command continued) %s";
+
+#ifdef HAVE_SETLOCALE
+ const char *old_locale = estrdup(setlocale(LC_ALL, NULL));
+ if (!setlocale(LC_ALL, def_sudoers_locale))
+ setlocale(LC_ALL, "C");
+#endif /* HAVE_SETLOCALE */
/*
* Log the full line, breaking into multiple syslog(3) calls if necessary
*/
- fmt = fmt_first;
- maxlen = MAXSYSLOGLEN - (sizeof(fmt_first) - 6 + strlen(user_name));
+ fmt = FMT_FIRST;
+ maxlen = MAXSYSLOGLEN - (sizeof(FMT_FIRST) - 6 + strlen(user_name));
for (p = msg; *p != '\0'; ) {
len = strlen(p);
if (len > maxlen) {
mysyslog(pri, fmt, user_name, p);
p += len;
}
- fmt = fmt_contd;
- maxlen = MAXSYSLOGLEN - (sizeof(fmt_contd) - 6 + strlen(user_name));
+ fmt = FMT_CONTD;
+ maxlen = MAXSYSLOGLEN - (sizeof(FMT_CONTD) - 6 + strlen(user_name));
}
+
+#ifdef HAVE_SETLOCALE
+ setlocale(LC_ALL, old_locale);
+ efree((void *)old_locale);
+#endif /* HAVE_SETLOCALE */
}
static void
fp = fopen(def_logfile, "a");
(void) umask(oldmask);
if (fp == NULL) {
- easprintf(&full_line, "Can't open log file: %s: %s",
- def_logfile, strerror(errno));
- send_mail(full_line);
- efree(full_line);
+ send_mail("Can't open log file: %s: %s", def_logfile, strerror(errno));
} else if (!lock_file(fileno(fp), SUDO_LOCK)) {
- easprintf(&full_line, "Can't lock log file: %s: %s",
- def_logfile, strerror(errno));
- send_mail(full_line);
- efree(full_line);
+ send_mail("Can't lock log file: %s: %s", def_logfile, strerror(errno));
} else {
+ time_t now;
+
+#ifdef HAVE_SETLOCALE
+ const char *old_locale = estrdup(setlocale(LC_ALL, NULL));
+ if (!setlocale(LC_ALL, def_sudoers_locale))
+ setlocale(LC_ALL, "C");
+#endif /* HAVE_SETLOCALE */
+
+ now = time(NULL);
if (def_loglinelen == 0) {
/* Don't pretty-print long log file lines (hard to grep) */
if (def_log_host)
- (void) fprintf(fp, "%s : %s : HOST=%s : %s\n", get_timestr(),
- user_name, user_shost, msg);
+ (void) fprintf(fp, "%s : %s : HOST=%s : %s\n",
+ get_timestr(now, def_log_year), user_name, user_shost, msg);
else
- (void) fprintf(fp, "%s : %s : %s\n", get_timestr(),
- user_name, msg);
+ (void) fprintf(fp, "%s : %s : %s\n",
+ get_timestr(now, def_log_year), user_name, msg);
} else {
if (def_log_host)
- easprintf(&full_line, "%s : %s : HOST=%s : %s", get_timestr(),
- user_name, user_shost, msg);
+ easprintf(&full_line, "%s : %s : HOST=%s : %s",
+ get_timestr(now, def_log_year), user_name, user_shost, msg);
else
- easprintf(&full_line, "%s : %s : %s", get_timestr(),
- user_name, msg);
+ easprintf(&full_line, "%s : %s : %s",
+ get_timestr(now, def_log_year), user_name, msg);
/*
* Print out full_line with word wrap
(void) fflush(fp);
(void) lock_file(fileno(fp), SUDO_UNLOCK);
(void) fclose(fp);
+
+#ifdef HAVE_SETLOCALE
+ setlocale(LC_ALL, old_locale);
+ efree((void *)old_locale);
+#endif /* HAVE_SETLOCALE */
}
}
/*
- * Two main functions, log_error() to log errors and log_auth() to
- * log allow/deny messages.
+ * Log and mail the denial message, optionally informing the user.
*/
void
-log_auth(status, inform_user)
+log_denial(status, inform_user)
int status;
int inform_user;
{
- char *evstr = NULL;
char *message;
char *logline;
- int pri;
-
- if (ISSET(status, VALIDATE_OK))
- pri = def_syslog_goodpri;
- else
- pri = def_syslog_badpri;
- /* Set error message, if any. */
- if (ISSET(status, VALIDATE_OK))
- message = "";
- else if (ISSET(status, FLAG_NO_USER))
- message = "user NOT in sudoers ; ";
+ /* Set error message. */
+ if (ISSET(status, FLAG_NO_USER))
+ message = "user NOT in sudoers";
else if (ISSET(status, FLAG_NO_HOST))
- message = "user NOT authorized on host ; ";
- else if (ISSET(status, VALIDATE_NOT_OK))
- message = "command not allowed ; ";
+ message = "user NOT authorized on host";
else
- message = "unknown error ; ";
+ message = "command not allowed";
- if (sudo_user.env_vars != NULL) {
- size_t len = 7; /* " ; ENV=" */
- struct list_member *cur;
- for (cur = sudo_user.env_vars; cur != NULL; cur = cur->next)
- len += strlen(cur->value) + 1;
- evstr = emalloc(len);
- strlcpy(evstr, " ; ENV=", len);
- for (cur = sudo_user.env_vars; cur != NULL; cur = cur->next) {
- strlcat(evstr, cur->value, len);
- strlcat(evstr, " ", len); /* NOTE: last one will fail */
- }
- }
- easprintf(&logline, "%sTTY=%s ; PWD=%s ; USER=%s%s ; COMMAND=%s%s%s",
- message, user_tty, user_cwd, *user_runas, evstr ? evstr : "",
- user_cmnd, user_args ? " " : "", user_args ? user_args : "");
+ logline = new_logline(message, 0);
- mail_auth(status, logline); /* send mail based on status */
+ if (should_mail(status))
+ send_mail("%s", logline); /* send mail based on status */
/* Inform the user if they failed to authenticate. */
- if (inform_user && ISSET(status, VALIDATE_NOT_OK)) {
+ if (inform_user) {
if (ISSET(status, FLAG_NO_USER))
(void) fprintf(stderr, "%s is not in the sudoers file. %s",
user_name, "This incident will be reported.\n");
user_name, user_shost);
else
(void) fprintf(stderr,
- "Sorry, user %s is not allowed to execute '%s%s%s' as %s on %s.\n",
+ "Sorry, user %s is not allowed to execute '%s%s%s' as %s%s%s on %s.\n",
user_name, user_cmnd, user_args ? " " : "",
- user_args ? user_args : "", *user_runas, user_host);
+ user_args ? user_args : "",
+ list_pw ? list_pw->pw_name : runas_pw ?
+ runas_pw->pw_name : user_name, runas_gr ? ":" : "",
+ runas_gr ? runas_gr->gr_name : "", user_host);
}
/*
* Log via syslog and/or a file.
*/
if (def_syslog)
- do_syslog(pri, logline);
+ do_syslog(def_syslog_badpri, logline);
+ if (def_logfile)
+ do_logfile(logline);
+
+ efree(logline);
+}
+
+/*
+ * Log and potentially mail the allowed command.
+ */
+void
+log_allowed(status)
+ int status;
+{
+ char *logline;
+
+ logline = new_logline(NULL, 0);
+
+ if (should_mail(status))
+ send_mail("%s", logline); /* send mail based on status */
+
+ /*
+ * Log via syslog and/or a file.
+ */
+ if (def_syslog)
+ do_syslog(def_syslog_goodpri, logline);
if (def_logfile)
do_logfile(logline);
- efree(evstr);
efree(logline);
}
int serrno = errno;
char *message;
char *logline;
- char *evstr = NULL;
va_list ap;
#ifdef __STDC__
va_start(ap, fmt);
#endif
/* Become root if we are not already to avoid user interference */
- set_perms(PERM_ROOT);
+ set_perms(PERM_ROOT|PERM_NOEXIT);
/* Expand printf-style format + args. */
evasprintf(&message, fmt, ap);
va_end(ap);
- if (sudo_user.env_vars != NULL) {
- size_t len = 7; /* " ; ENV=" */
- struct list_member *cur;
- for (cur = sudo_user.env_vars; cur != NULL; cur = cur->next)
- len += strlen(cur->value) + 1;
- evstr = emalloc(len);
- strlcpy(evstr, " ; ENV=", len);
- for (cur = sudo_user.env_vars; cur != NULL; cur = cur->next) {
- strlcat(evstr, cur->value, len);
- strlcat(evstr, " ", len); /* NOTE: last one will fail */
- }
- }
-
if (ISSET(flags, MSG_ONLY))
logline = message;
- else if (ISSET(flags, USE_ERRNO)) {
- if (user_args) {
- easprintf(&logline,
- "%s: %s ; TTY=%s ; PWD=%s ; USER=%s%s ; COMMAND=%s %s",
- message, strerror(serrno), user_tty, user_cwd, *user_runas,
- evstr ? evstr : "", user_cmnd, user_args);
- } else {
- easprintf(&logline,
- "%s: %s ; TTY=%s ; PWD=%s ; USER=%s%s ; COMMAND=%s", message,
- strerror(serrno), user_tty, user_cwd, *user_runas,
- evstr ? evstr : "", user_cmnd);
- }
- } else {
- if (user_args) {
- easprintf(&logline,
- "%s ; TTY=%s ; PWD=%s ; USER=%s%s ; COMMAND=%s %s", message,
- user_tty, user_cwd, *user_runas, evstr ? evstr : "",
- user_cmnd, user_args);
- } else {
- easprintf(&logline,
- "%s ; TTY=%s ; PWD=%s ; USER=%s%s ; COMMAND=%s", message,
- user_tty, user_cwd, *user_runas, evstr ? evstr : "", user_cmnd);
- }
- }
+ else
+ logline = new_logline(message, ISSET(flags, USE_ERRNO) ? serrno : 0);
/*
* Tell the user.
*/
- if (ISSET(flags, USE_ERRNO))
- warn("%s", message);
- else
- warnx("%s", message);
+ if (!ISSET(flags, NO_STDERR)) {
+ if (ISSET(flags, USE_ERRNO))
+ warning("%s", message);
+ else
+ warningx("%s", message);
+ }
+ if (logline != message)
+ efree(message);
/*
* Send a copy of the error via mail.
*/
if (!ISSET(flags, NO_MAIL))
- send_mail(logline);
+ send_mail("%s", logline);
/*
* Log to syslog and/or a file.
if (def_logfile)
do_logfile(logline);
- efree(message);
- if (logline != message)
- efree(logline);
+ efree(logline);
- if (!ISSET(flags, NO_EXIT))
+ if (!ISSET(flags, NO_EXIT)) {
+ cleanup(0);
exit(1);
+ }
}
#define MAX_MAILFLAGS 63
* Send a message to MAILTO user
*/
static void
-send_mail(line)
- char *line;
+#ifdef __STDC__
+send_mail(const char *fmt, ...)
+#else
+send_mail(fmt, va_alist)
+ const char *fmt;
+ va_dcl
+#endif
{
FILE *mail;
char *p;
- int pfd[2];
- pid_t pid;
- sigset_t set, oset;
+ int fd, pfd[2], status;
+ pid_t pid, rv;
+ sigaction_t sa;
+ va_list ap;
#ifndef NO_ROOT_MAILER
static char *root_envp[] = {
"HOME=/",
- "PATH=/usr/bin:/bin",
+ "PATH=/usr/bin:/bin:/usr/sbin:/sbin",
"LOGNAME=root",
"USERNAME=root",
"USER=root",
NULL
};
-#endif
+#endif /* NO_ROOT_MAILER */
/* Just return if mailer is disabled. */
if (!def_mailerpath || !def_mailto)
return;
- (void) sigemptyset(&set);
- (void) sigaddset(&set, SIGCHLD);
- (void) sigaddset(&set, SIGPIPE);
- (void) sigprocmask(SIG_BLOCK, &set, &oset);
+ /* Fork and return, child will daemonize. */
+ switch (pid = fork()) {
+ case -1:
+ /* Error. */
+ error(1, "cannot fork");
+ break;
+ case 0:
+ /* Child. */
+ switch (pid = fork()) {
+ case -1:
+ /* Error. */
+ mysyslog(LOG_ERR, "cannot fork: %m");
+ _exit(1);
+ case 0:
+ /* Grandchild continues below. */
+ break;
+ default:
+ /* Parent will wait for us. */
+ _exit(0);
+ }
+ break;
+ default:
+ /* Parent. */
+ do {
+#ifdef HAVE_WAITPID
+ rv = waitpid(pid, &status, 0);
+#else
+ rv = wait(&status);
+#endif
+ } while (rv == -1 && errno == EINTR);
+ return;
+ }
+
+ /* Daemonize - disassociate from session/tty. */
+ if (setsid() == -1)
+ warning("setsid");
+ if (chdir("/") == -1)
+ warning("chdir(/)");
+ if ((fd = open(_PATH_DEVNULL, O_RDWR, 0644)) != -1) {
+ (void) dup2(fd, STDIN_FILENO);
+ (void) dup2(fd, STDOUT_FILENO);
+ (void) dup2(fd, STDERR_FILENO);
+ }
- if (pipe(pfd) == -1)
- err(1, "cannot open pipe");
+#ifdef HAVE_SETLOCALE
+ if (!setlocale(LC_ALL, def_sudoers_locale)) {
+ setlocale(LC_ALL, "C");
+ efree(def_sudoers_locale);
+ def_sudoers_locale = estrdup("C");
+ }
+#endif /* HAVE_SETLOCALE */
+
+ /* Close password, group and other fds so we don't leak. */
+ sudo_endpwent();
+ sudo_endgrent();
+ closefrom(STDERR_FILENO + 1);
+
+ /* Ignore SIGPIPE in case mailer exits prematurely (or is missing). */
+ zero_bytes(&sa, sizeof(sa));
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = SA_INTERRUPT;
+ sa.sa_handler = SIG_IGN;
+ (void) sigaction(SIGPIPE, &sa, NULL);
+
+ if (pipe(pfd) == -1) {
+ mysyslog(LOG_ERR, "cannot open pipe: %m");
+ _exit(1);
+ }
switch (pid = fork()) {
case -1:
/* Error. */
- err(1, "cannot fork");
+ mysyslog(LOG_ERR, "cannot fork: %m");
+ _exit(1);
break;
case 0:
{
/* Child, set stdin to output side of the pipe */
if (pfd[0] != STDIN_FILENO) {
- (void) dup2(pfd[0], STDIN_FILENO);
+ if (dup2(pfd[0], STDIN_FILENO) == -1) {
+ mysyslog(LOG_ERR, "cannot dup stdin: %m");
+ _exit(127);
+ }
(void) close(pfd[0]);
}
(void) close(pfd[1]);
- /* Build up an argv based the mailer path and flags */
+ /* Build up an argv based on the mailer path and flags */
mflags = estrdup(def_mailerflags);
mpath = estrdup(def_mailerpath);
if ((argv[0] = strrchr(mpath, ' ')))
}
argv[i] = NULL;
- /* Close password file so we don't leak the fd. */
- endpwent();
-
/*
* Depending on the config, either run the mailer as root
* (so user cannot kill it) or as the user (for the paranoid).
*/
#ifndef NO_ROOT_MAILER
- set_perms(PERM_ROOT);
+ set_perms(PERM_ROOT|PERM_NOEXIT);
execve(mpath, argv, root_envp);
#else
- set_perms(PERM_FULL_USER);
+ set_perms(PERM_FULL_USER|PERM_NOEXIT);
execv(mpath, argv);
#endif /* NO_ROOT_MAILER */
+ mysyslog(LOG_ERR, "cannot execute %s: %m", mpath);
_exit(127);
}
break;
(void) close(pfd[0]);
mail = fdopen(pfd[1], "w");
- /* Pipes are all setup, send message via sendmail. */
+ /* Pipes are all setup, send message. */
(void) fprintf(mail, "To: %s\nFrom: %s\nAuto-Submitted: %s\nSubject: ",
- def_mailto, user_name, "auto-generated");
+ def_mailto, def_mailfrom ? def_mailfrom : user_name, "auto-generated");
for (p = def_mailsub; *p; p++) {
/* Expand escapes in the subject */
if (*p == '%' && *(p+1) != '%') {
} else
(void) fputc(*p, mail);
}
- (void) fprintf(mail, "\n\n%s : %s : %s : %s\n\n", user_host,
- get_timestr(), user_name, line);
- fclose(mail);
- (void) sigprocmask(SIG_SETMASK, &oset, NULL);
- /* If mailer is done, wait for it now. If not, we'll get it later. */
- reapchild(SIGCHLD);
-}
+#ifdef HAVE_NL_LANGINFO
+ if (strcmp(def_sudoers_locale, "C") != 0)
+ (void) fprintf(mail, "\nContent-Type: text/plain; charset=\"%s\"\nContent-Transfer-Encoding: 8bit", nl_langinfo(CODESET));
+#endif /* HAVE_NL_LANGINFO */
-/*
- * Send mail based on the value of "status" and compile-time options.
- */
-static void
-mail_auth(status, line)
- int status;
- char *line;
-{
- int mail_mask;
-
- /* If any of these bits are set in status, we send mail. */
- if (def_mail_always)
- mail_mask =
- VALIDATE_ERROR|VALIDATE_OK|FLAG_NO_USER|FLAG_NO_HOST|VALIDATE_NOT_OK;
- else {
- mail_mask = VALIDATE_ERROR;
- if (def_mail_no_user)
- SET(mail_mask, FLAG_NO_USER);
- if (def_mail_no_host)
- SET(mail_mask, FLAG_NO_HOST);
- if (def_mail_no_perms)
- SET(mail_mask, VALIDATE_NOT_OK);
- }
+ (void) fprintf(mail, "\n\n%s : %s : %s : ", user_host,
+ get_timestr(time(NULL), def_log_year), user_name);
+#ifdef __STDC__
+ va_start(ap, fmt);
+#else
+ va_start(ap);
+#endif
+ (void) vfprintf(mail, fmt, ap);
+ va_end(ap);
+ fputs("\n\n", mail);
- if ((status & mail_mask) != 0)
- send_mail(line);
+ fclose(mail);
+ do {
+#ifdef HAVE_WAITPID
+ rv = waitpid(pid, &status, 0);
+#else
+ rv = wait(&status);
+#endif
+ } while (rv == -1 && errno == EINTR);
+ _exit(0);
}
/*
- * SIGCHLD sig handler--wait for children as they die.
+ * Determine whether we should send mail based on "status" and defaults options.
*/
-RETSIGTYPE
-reapchild(sig)
- int sig;
+static int
+should_mail(status)
+ int status;
{
- int status, serrno = errno;
-#ifdef sudo_waitpid
- pid_t pid;
- do {
- pid = sudo_waitpid(-1, &status, WNOHANG);
- } while (pid != 0 && (pid != -1 || errno == EINTR));
-#else
- (void) wait(&status);
-#endif
- errno = serrno;
+ return def_mail_always || ISSET(status, VALIDATE_ERROR) ||
+ (def_mail_no_user && ISSET(status, FLAG_NO_USER)) ||
+ (def_mail_no_host && ISSET(status, FLAG_NO_HOST)) ||
+ (def_mail_no_perms && !ISSET(status, VALIDATE_OK));
}
+#define LL_TTY_STR "TTY="
+#define LL_CWD_STR "PWD=" /* XXX - should be CWD= */
+#define LL_USER_STR "USER="
+#define LL_GROUP_STR "GROUP="
+#define LL_ENV_STR "ENV="
+#define LL_CMND_STR "COMMAND="
+#define LL_TSID_STR "TSID="
+
/*
- * Return an ascii string with the current date + time
- * Uses strftime() if available, else falls back to ctime().
+ * Allocate and fill in a new logline.
*/
static char *
-get_timestr()
+new_logline(message, serrno)
+ const char *message;
+ int serrno;
{
- char *s;
- time_t now = time((time_t) 0);
-#ifdef HAVE_STRFTIME
- static char buf[128];
- struct tm *timeptr;
-
- timeptr = localtime(&now);
- if (def_log_year)
- s = "%h %e %T %Y";
- else
- s = "%h %e %T";
+ size_t len = 0;
+ char *evstr = NULL;
+ char *errstr = NULL;
+ char *line;
- /* strftime() does not guarantee to NUL-terminate so we must check. */
- buf[sizeof(buf) - 1] = '\0';
- if (strftime(buf, sizeof(buf), s, timeptr) && buf[sizeof(buf) - 1] == '\0')
- return(buf);
+ /*
+ * Compute line length
+ */
+ if (message != NULL)
+ len += strlen(message) + 3;
+ if (serrno) {
+ errstr = strerror(serrno);
+ len += strlen(errstr) + 3;
+ }
+ len += sizeof(LL_TTY_STR) + 2 + strlen(user_tty);
+ len += sizeof(LL_CWD_STR) + 2 + strlen(user_cwd);
+ if (runas_pw != NULL)
+ len += sizeof(LL_USER_STR) + 2 + strlen(runas_pw->pw_name);
+ if (runas_gr != NULL)
+ len += sizeof(LL_GROUP_STR) + 2 + strlen(runas_gr->gr_name);
+ if (sudo_user.sessid[0] != '\0')
+ len += sizeof(LL_TSID_STR) + 2 + strlen(sudo_user.sessid);
+ if (sudo_user.env_vars != NULL) {
+ size_t evlen = 0;
+ struct list_member *cur;
+ for (cur = sudo_user.env_vars; cur != NULL; cur = cur->next)
+ evlen += strlen(cur->value) + 1;
+ evstr = emalloc(evlen);
+ evstr[0] = '\0';
+ for (cur = sudo_user.env_vars; cur != NULL; cur = cur->next) {
+ strlcat(evstr, cur->value, evlen);
+ strlcat(evstr, " ", evlen); /* NOTE: last one will fail */
+ }
+ len += sizeof(LL_ENV_STR) + 2 + evlen;
+ }
+ /* Note: we log "sudo -l command arg ..." as "list command arg ..." */
+ len += sizeof(LL_CMND_STR) - 1 + strlen(user_cmnd);
+ if (ISSET(sudo_mode, MODE_CHECK))
+ len += sizeof("list ") - 1;
+ if (user_args != NULL)
+ len += strlen(user_args) + 1;
-#endif /* HAVE_STRFTIME */
+ /*
+ * Allocate and build up the line.
+ */
+ line = emalloc(++len);
+ line[0] = '\0';
- s = ctime(&now) + 4; /* skip day of the week */
- if (def_log_year)
- s[20] = '\0'; /* avoid the newline */
- else
- s[15] = '\0'; /* don't care about year */
+ if (message != NULL) {
+ if (strlcat(line, message, len) >= len ||
+ strlcat(line, errstr ? " : " : " ; ", len) >= len)
+ goto toobig;
+ }
+ if (serrno) {
+ if (strlcat(line, errstr, len) >= len ||
+ strlcat(line, " ; ", len) >= len)
+ goto toobig;
+ }
+ if (strlcat(line, LL_TTY_STR, len) >= len ||
+ strlcat(line, user_tty, len) >= len ||
+ strlcat(line, " ; ", len) >= len)
+ goto toobig;
+ if (strlcat(line, LL_CWD_STR, len) >= len ||
+ strlcat(line, user_cwd, len) >= len ||
+ strlcat(line, " ; ", len) >= len)
+ goto toobig;
+ if (runas_pw != NULL) {
+ if (strlcat(line, LL_USER_STR, len) >= len ||
+ strlcat(line, runas_pw->pw_name, len) >= len ||
+ strlcat(line, " ; ", len) >= len)
+ goto toobig;
+ }
+ if (runas_gr != NULL) {
+ if (strlcat(line, LL_GROUP_STR, len) >= len ||
+ strlcat(line, runas_gr->gr_name, len) >= len ||
+ strlcat(line, " ; ", len) >= len)
+ goto toobig;
+ }
+ if (sudo_user.sessid[0] != '\0') {
+ if (strlcat(line, LL_TSID_STR, len) >= len ||
+ strlcat(line, sudo_user.sessid, len) >= len ||
+ strlcat(line, " ; ", len) >= len)
+ goto toobig;
+ }
+ if (evstr != NULL) {
+ if (strlcat(line, LL_ENV_STR, len) >= len ||
+ strlcat(line, evstr, len) >= len ||
+ strlcat(line, " ; ", len) >= len)
+ goto toobig;
+ efree(evstr);
+ }
+ if (strlcat(line, LL_CMND_STR, len) >= len)
+ goto toobig;
+ if (ISSET(sudo_mode, MODE_CHECK) && strlcat(line, "list ", len) >= len)
+ goto toobig;
+ if (strlcat(line, user_cmnd, len) >= len)
+ goto toobig;
+ if (user_args != NULL) {
+ if (strlcat(line, " ", len) >= len ||
+ strlcat(line, user_args, len) >= len)
+ goto toobig;
+ }
- return(s);
+ return line;
+toobig:
+ errorx(1, "internal error: insufficient space for log line");
}