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-rw-r--r--lib/os_mon/c_src/mod_syslog.c137
1 files changed, 137 insertions, 0 deletions
diff --git a/lib/os_mon/c_src/mod_syslog.c b/lib/os_mon/c_src/mod_syslog.c
new file mode 100644
index 0000000000..87fbfbac22
--- /dev/null
+++ b/lib/os_mon/c_src/mod_syslog.c
@@ -0,0 +1,137 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 1996-2009. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <signal.h>
+
+ /* arguments */
+#define MODE 1
+#define OWNPATH 2
+#define SYSLOGCONF 3
+#define NARG 3
+
+ /* status codes */
+#define OK 0
+#define ARG_ERROR -1
+#define FILE_ERROR -2
+#define KILL_ERROR -3
+#define PIPE_NOT_FOUND 1
+
+ /* hardwired */
+#define SYSLOG_PID "/etc/syslog.pid"
+#define PIPENAME "syslog.otp"
+#define SYSLOGCONF_ORIG "syslog.conf.ORIG"
+#define SYSLOGCONF_OTP "syslog.conf.OTP"
+#define BUFFER_SIZE 1001
+#define MAXNAME_SIZE 1001
+#define FALSE 0
+#define TRUE 1
+#define WAIT 1
+
+main(int argc, char *argv[])
+/* usage: mod_syslog mode ownpath syslogconf */
+{
+ int syslogd_pid, n_lines_copied=0;
+ int otp_sw, find_sw=FALSE;
+ char buf[BUFFER_SIZE], pipename[MAXNAME_SIZE], srcname[MAXNAME_SIZE];
+ FILE *srcfile, *destfile, *pidfile;
+
+ void make_exit(int);
+
+ /* enough arguments? */
+ if(argc < NARG+1)
+ make_exit(ARG_ERROR);
+
+ /* enable OTP or not */
+ if(strcmp(argv[MODE], "otp") == 0)
+ otp_sw = TRUE;
+ else if(strcmp(argv[MODE], "nootp") == 0)
+ otp_sw = FALSE;
+ else
+ make_exit(ARG_ERROR);
+
+ /* make pipename */
+ strcpy(pipename, argv[OWNPATH]);
+ strcat(pipename, "/");
+ strcat(pipename, PIPENAME);
+
+ /* remove old pipe and make a new one */
+ if(otp_sw){
+ /* remove */
+ unlink(pipename);
+
+ /* make a new */
+ if(mknod(pipename, S_IFIFO | S_IRUSR | S_IWUSR | S_IRGRP |
+ S_IWGRP | S_IROTH | S_IWOTH, (dev_t)0) != 0)
+ make_exit(FILE_ERROR);
+ }
+
+ /* make source filename */
+ strcpy(srcname, argv[OWNPATH]);
+ strcat(srcname, "/");
+ strcat(srcname, otp_sw?SYSLOGCONF_OTP:SYSLOGCONF_ORIG);
+
+ /* open source and destination, exit if error */
+ if((srcfile = fopen(srcname, "r")) == NULL ||
+ (destfile = fopen(argv[SYSLOGCONF], "w")) == NULL)
+ make_exit(FILE_ERROR);
+
+ /* copy source and destination, exit if error */
+ while(fgets(buf, BUFFER_SIZE-1, srcfile) != NULL){
+ /* find_sw |= strstr(buf, PIPENAME) != NULL; */
+ n_lines_copied++;
+ if(fputs(buf, destfile) == EOF)
+ make_exit(FILE_ERROR);
+ }
+ if(ferror(srcfile) || n_lines_copied == 0)
+ make_exit(FILE_ERROR);
+
+ /* open pidfile, exit if error */
+ if((pidfile = fopen(SYSLOG_PID, "r")) == NULL)
+ make_exit(FILE_ERROR);
+
+ /* read pid for syslogd, exit if error */
+ if(fscanf(pidfile, "%d", &syslogd_pid) == 0)
+ make_exit(FILE_ERROR);
+
+ /* send HUP to syslogd, exit if error */
+ if(syslogd_pid < 0 || kill((pid_t)syslogd_pid, SIGHUP) != 0)
+ make_exit(KILL_ERROR);
+
+ /* remove pipe */
+ if(!otp_sw){
+ sleep((unsigned)WAIT);
+ unlink(pipename);
+ }
+
+ /* ending successful or with warning */
+ /* if(!find_sw && otp_sw)
+ make_exit(PIPE_NOT_FOUND);
+ else */
+ make_exit(OK);
+}
+
+void make_exit(int exit_code)
+{
+ printf("%d", exit_code);
+ exit(0);
+}