From ac97850fb2b8c1e4efbaf782bf8afbc4b3d6a058 Mon Sep 17 00:00:00 2001
From: toni <matzeton@googlemail.com>
Date: Mon, 4 Jul 2016 10:01:34 +0200
Subject: syslog && compile script

---
 compile.sh       | 11 +++++++++++
 configure.ac     |  4 ++--
 src/aconfig.h.in | 15 ++++++++++++---
 src/log.c        | 28 ++++++++++++++++++++--------
 src/opt.c        |  6 ++++--
 5 files changed, 49 insertions(+), 15 deletions(-)
 create mode 100755 compile.sh

diff --git a/compile.sh b/compile.sh
new file mode 100755
index 0000000..3db651f
--- /dev/null
+++ b/compile.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+set -e
+
+DIR=$(dirname $0)
+PWD=$(pwd)
+
+cd ${DIR}
+./autogen.sh
+./configure
+make
+cd ${PWD}
diff --git a/configure.ac b/configure.ac
index 5ea94ee..740f02a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -34,7 +34,7 @@ AC_HEADER_STDC
 AC_HEADER_STAT
 AC_HEADER_DIRENT
 AC_HEADER_ASSERT
-AC_CHECK_HEADERS([stdio.h stdlib.h stdbool.h string.h unistd.h errno.h sys/stat.h sys/types.h sys/wait.h fcntl.h semaphore.h time.h mqueue.h alloca.h])
+AC_CHECK_HEADERS([stdio.h stdlib.h stdbool.h string.h unistd.h errno.h sys/stat.h sys/types.h sys/wait.h fcntl.h semaphore.h time.h mqueue.h syslog.h],[],[AC_MSG_ERROR([*** missing essential header files])])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_COMPUTE_INT
@@ -57,7 +57,7 @@ AC_FUNC_STRNLEN
 AC_FUNC_STAT
 AC_FUNC_MKTIME
 AC_FUNC_VPRINTF
-AC_CHECK_FUNCS([clock_gettime asprintf system printf fprintf mkfifo stat open close fork memmove memcpy memset strdup strndup strerror strstr strlen strnlen strtol],,[AC_MSG_ERROR([*** Missing essential functions.])])
+AC_CHECK_FUNCS([clock_gettime asprintf system printf fprintf mkfifo stat open close fork memmove memcpy memset strdup strndup strerror strstr strlen strnlen strtol openlog vsyslog closelog],,[AC_MSG_ERROR([*** Missing essential functions.])])
 
 AC_DEFINE([HAVE_CONFIG], [1], [Do NOT change THIS!])
 LDFLAGS="${LDFLAGS} -pthread -lrt -lncurses"
diff --git a/src/aconfig.h.in b/src/aconfig.h.in
index a24ff8d..8dcbf12 100644
--- a/src/aconfig.h.in
+++ b/src/aconfig.h.in
@@ -3,9 +3,6 @@
 /* Define to 1 if you have the `alarm' function. */
 #undef HAVE_ALARM
 
-/* Define to 1 if you have the <alloca.h> header file. */
-#undef HAVE_ALLOCA_H
-
 /* Define to 1 if you have the `asprintf' function. */
 #undef HAVE_ASPRINTF
 
@@ -15,6 +12,9 @@
 /* Define to 1 if you have the `close' function. */
 #undef HAVE_CLOSE
 
+/* Define to 1 if you have the `closelog' function. */
+#undef HAVE_CLOSELOG
+
 /* Do NOT change THIS! */
 #undef HAVE_CONFIG
 
@@ -74,6 +74,9 @@
 /* Define to 1 if you have the `open' function. */
 #undef HAVE_OPEN
 
+/* Define to 1 if you have the `openlog' function. */
+#undef HAVE_OPENLOG
+
 /* Define to 1 if you have the `printf' function. */
 #undef HAVE_PRINTF
 
@@ -130,6 +133,9 @@
 /* Define to 1 if you have the `strtol' function. */
 #undef HAVE_STRTOL
 
+/* Define to 1 if you have the <syslog.h> header file. */
+#undef HAVE_SYSLOG_H
+
 /* Define to 1 if you have the `system' function. */
 #undef HAVE_SYSTEM
 
@@ -171,6 +177,9 @@
 /* Define to 1 if you have the `vprintf' function. */
 #undef HAVE_VPRINTF
 
+/* Define to 1 if you have the `vsyslog' function. */
+#undef HAVE_VSYSLOG
+
 /* Define to 1 if `fork' works. */
 #undef HAVE_WORKING_FORK
 
diff --git a/src/log.c b/src/log.c
index ea52fda..cd8fc7c 100644
--- a/src/log.c
+++ b/src/log.c
@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <errno.h>
 #include <stdarg.h>
+#include <syslog.h>
 
 #include "log.h"
 
@@ -12,16 +13,23 @@ static FILE* logfile = NULL;
 
 int log_init(char* file)
 {
-  if (!file) return -1;
-  logfile = fopen(file, "a+");
-  return (logfile ? 0 : errno);
+  if (!file) {
+    openlog("naskpass", LOG_NDELAY | LOG_PID, LOG_DAEMON);
+    return 0;
+  } else {
+    logfile = fopen(file, "a+");
+    return (logfile ? 0 : errno);
+  }
 }
 
 void log_free(void)
 {
-  if (logfile)
+  if (!logfile) {
+    closelog();
+  } else {
     fclose(logfile);
-  logfile = NULL;
+    logfile = NULL;
+  }
 }
 
 int logs(char* format, ...)
@@ -29,10 +37,14 @@ int logs(char* format, ...)
   int ret;
   va_list vargs;
 
-  if (!logfile) return -1;
   va_start(vargs, format);
-  ret = vfprintf(logfile, format, vargs);
-  fflush(logfile);
+  if (!logfile) {
+    vsyslog(LOG_DEBUG, format, vargs);
+    ret = 0;
+  } else {
+    ret = vfprintf(logfile, format, vargs);
+    fflush(logfile);
+  }
   va_end(vargs);
   return ret;
 }
diff --git a/src/opt.c b/src/opt.c
index e1ea835..0c2071a 100644
--- a/src/opt.c
+++ b/src/opt.c
@@ -28,7 +28,7 @@ parse_cmd(int argc, char **argv)
 {
   int opt;
 
-  while ((opt = getopt(argc, argv, "hf:c:l:")) != -1) {
+  while ((opt = getopt(argc, argv, "hf:c:l::")) != -1) {
     switch (opt) {
       case 'h':
         usage(argv[0]);
@@ -40,7 +40,9 @@ parse_cmd(int argc, char **argv)
         SETOPT_str(CRYPT_CMD, strdup(optarg));
         break;
       case 'l':
-        SETOPT_str(LOG_FILE, strdup(optarg));
+        if (optarg) {
+          SETOPT_str(LOG_FILE, strdup(optarg));
+        } else SETOPT_str(LOG_FILE, NULL);
         break;
       default:
         usage(argv[0]);
-- 
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