Rename project from 'Debug Module' to 'Hugin'

1 files changed, 274 insertions, 0 deletions

diff --git a/hugin_syslog.c b/hugin_syslog.c
new file mode 100644
index 0000000..2a8abb3
--- /dev/null
+++ b/hugin_syslog.c
@@ -0,0 +1,274 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ *            debug_syslog.c
+ *
+ *  Fri Dec  7 14:24:54 CET 2012
+ *  Copyright 2012 Jonas Suhr Christensen
+ *  jsc@umbraculum.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of Debug Module.
+ *
+ *  Debug Module is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Debug Module is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Debug Module; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "debug_syslog.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+#ifdef WIN32
+#include <ws2tcpip.h>
+#include <WinSock2.h>
+typedef SOCKET socket_t;
+#else
+typedef int socket_t;
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#endif
+
+#include <unistd.h>
+#include <errno.h>
+
+#include "debug_util.h"
+
+#ifndef WITH_DBG_SYSLOG
+#warning debug_syslog.c compiled but WITH_DBG_SYSLOG not defined
+#endif
+
+#define SYSLOG_MSGLEN 1024
+#define SYSLOG_PRILEN 5
+#define SYSLOG_TIMELEN 32 
+#define SYSLOG_TAGLEN 32
+#define SYSLOG_CONTENTLEN SYSLOG_MSGLEN - SYSLOG_PRILEN - SYSLOG_TIMELEN - SYSLOG_TAGLEN
+//#define SYSLOG_CONTENTLEN SYSLOG_MSGLEN - SYSLOG_PRILEN - SYSLOG_TAGLEN - SYSLOG_HEADERLEN -1
+
+#define SYSLOG_LENOFEXECNAME 256
+
+static int dbg_syslog_sock;
+static struct sockaddr_in dbg_syslog_sockaddr;
+static pid_t pid;
+static char execname[SYSLOG_LENOFEXECNAME];
+
+#ifdef WIN32
+static void wsastartup()
+{
+  WORD wVersionRequested = MAKEWORD(2, 0);
+  WSADATA wsaData;
+
+  int ret = WSAStartup(wVersionRequested, &wsaData);
+  if(ret != 0) {
+    fprintf(stderr, "WSAStartup failed.\n");
+  }
+}
+#endif
+
+void dbg_syslog_init(const char* host, int port) 
+{
+
+#ifdef WIN32
+  wsastartup();
+#endif
+
+  printf("Initializing syslog module remote %s:%d\n", host, port);
+  if ( (dbg_syslog_sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
+    fprintf(stderr, "Failed to create socket\n");
+    return;  
+  }
+  memset(&dbg_syslog_sockaddr, 0, sizeof(dbg_syslog_sockaddr));
+  dbg_syslog_sockaddr.sin_family = AF_INET;
+//  dbg_syslog_sockaddr.sin_addr.s_addr = inet_addr(host);
+  struct hostent *hp = gethostbyname(host);
+  memcpy(&(dbg_syslog_sockaddr.sin_addr),*(hp->h_addr_list),sizeof(struct in_addr));
+  dbg_syslog_sockaddr.sin_port = htons(port);
+
+  // This implementation has all kind of possible errors:
+  //   * It is Linux only
+  //   * Max length of execname (including path, avoid this by cmdline file in reverse order) 
+  //     is set to SYSLOG_LENOFEXECNAME
+  //   * If not found execname is ""
+  pid = getpid();
+  char buf[SYSLOG_LENOFEXECNAME];
+  FILE* f = fopen("/proc/self/cmdline", "r");
+  if(f) {
+    char* s = NULL;
+    s = fgets(buf, SYSLOG_LENOFEXECNAME, f);
+    fclose(f);
+  }
+  
+  char* bufptr = strrchr(buf, '/');
+  if(bufptr) {
+    strncpy(execname, bufptr+1, SYSLOG_LENOFEXECNAME-1);
+  }
+  else {
+    strcpy(execname, "\0");
+  }
+
+  printf("\tRunning as %s with pid %d\n", execname, pid);
+}
+
+/*
+void dbg_syslog_createheader() {
+  const time_t rawtime = time(NULL);
+  struct tm time;
+  localtime_r(&rawtime, &time);
+  char timebuf[256];
+  strftime(timebuf, 256, "%b %e %H:%M:%S ", &time);
+
+  char bufpri[SYSLOG_PRILEN] = "<20>";
+  char buftag[SYSLOG_TAGLEN] = "PROGRAM[PID]: ";
+
+}
+*/
+
+/*
+ * Syslog message specification (based on rfc3164). 
+ * Modified after reading syslog v2. documentation
+ *
+ * MSG: "<%d%d>%s %s %s%c%s", FACILITY, SEVERITY, TIME, CLIENT, TAG, DELIM, CONTENT
+ * 
+ * Example:
+ *   <34>Oct 11 22:14:15 mymachine su: 'su root' failed for lonvick on /dev/pts/8
+ *
+ *
+ * NOTE! Length of MSG must not exceed 1024 characters!
+ *
+ * FACILITY:
+ *      0             kernel messages
+ *      1             user-level messages
+ *      2             mail system
+ *      3             system daemons
+ *      4             security/authorization messages (note 1)
+ *      5             messages generated internally by syslogd
+ *      6             line printer subsystem
+ *      7             network news subsystem
+ *      8             UUCP subsystem
+ *      9             clock daemon (note 2)
+ *      10            security/authorization messages (note 1)
+ *      11            FTP daemon
+ *      12            NTP subsystem
+ *      13            log audit (note 1)
+ *      14            log alert (note 1)
+ *      15            clock daemon (note 2)
+ *      16            local use 0  (local0)
+ *      17            local use 1  (local1)
+ *      18            local use 2  (local2)
+ *      19            local use 3  (local3)
+ *      20            local use 4  (local4)
+ *      21            local use 5  (local5)
+ *      22            local use 6  (local6)
+ *      23            local use 7  (local7)
+ *
+ * SEVERITY:
+ *      0       Emergency: system is unusable
+ *      1       Alert: action must be taken immediately
+ *      2       Critical: critical conditions
+ *      3       Error: error conditions
+ *      4       Warning: warning conditions
+ *      5       Notice: normal but significant condition
+ *      6       Informational: informational messages
+ *      7       Debug: debug-level messages
+ *
+ * TIME:
+ *     Time of message formatted like: Mmm dd hh:mm:ss
+ *
+ * CLIENT:
+ *     Hostname or
+ *     IPv4 address or
+ *     IPv6 address
+ *
+ * TAG: format: PROGRAM[PID]
+ *     Program or process information
+ *     PROGRAM is Alphanumeric 
+ *     PID is numeric 
+ *     Must not exceed 32 characters
+ * 
+ * DELIM:
+ *     A nonn-alphanumeric character (eg. ':', '[' ...)
+ *     In implementation DELIM is the first character of CONTENT
+ *
+ * CONTENT:
+ *     The message to log.
+ *     String of printable characters
+ *
+ * */
+
+void dbg_syslog_output(char* msg) 
+{
+  if(dbg_syslog_sock < 0) return;
+
+  const time_t rawtime = time(NULL);
+  struct tm time;
+  dbg_localtime(&rawtime, &time);
+  char buftime[SYSLOG_TIMELEN];
+  strftime(buftime, SYSLOG_TIMELEN, "%b %e %H:%M:%S ", &time);
+
+  // Currently everything is mapped to local facility 4 as debug
+  char bufpri[SYSLOG_PRILEN];
+  strncpy(bufpri, "<167>", SYSLOG_PRILEN);
+
+  char buftag[SYSLOG_TAGLEN];
+  snprintf(buftag, SYSLOG_TAGLEN, "%s[%d]: ", execname, pid);
+
+  char buf[SYSLOG_MSGLEN];
+  memset(buf, 0, sizeof(buf));
+  strncat(buf, bufpri, SYSLOG_PRILEN);
+  strncat(buf, buftime, SYSLOG_TIMELEN);
+  strncat(buf, buftag, SYSLOG_TAGLEN);
+  strncat(buf, msg, SYSLOG_CONTENTLEN);
+  strcat(buf, "\n");
+
+
+//  printf("Sending to syslog: %s\n", buf);
+  int buf_len = strlen(buf);
+  if((sendto(dbg_syslog_sock, buf, buf_len, 0, (struct sockaddr *) &dbg_syslog_sockaddr, 
+             sizeof(dbg_syslog_sockaddr))) != buf_len) {
+    fprintf(stderr, "Failed to send message successfully: %s\n", strerror(errno));
+  }
+}
+
+void dbg_syslog_close() {
+  printf("Closing syslog module\n");
+  if(dbg_syslog_sock < 0) return;
+
+#ifdef WIN32
+  closesocket(dbg_syslog_sock);
+  WSACleanup();
+#else
+  close(dbg_syslog_sock);
+#endif
+}
+
+#ifdef TEST_DEBUG_SYSLOG
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+TEST_TRUE(false, "No tests yet!");
+
+TEST_END;
+
+#endif/*TEST_DEBUG_SYSLOG*/