diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Makefile.am | 17 | ||||
| -rw-r--r-- | lib/cee-syslog.c | 91 | ||||
| -rw-r--r-- | lib/cee-syslog.h | 37 | ||||
| -rw-r--r-- | lib/libcee-syslog.pc.in | 10 |
4 files changed, 155 insertions, 0 deletions
diff --git a/lib/Makefile.am b/lib/Makefile.am new file mode 100644 index 0000000..0ced726 --- /dev/null +++ b/lib/Makefile.am @@ -0,0 +1,17 @@ +LCS_CURRENT = 0 +LCS_REVISION = 0 +LCS_AGE = 0 + +lib_LTLIBRARIES = libcee-syslog.la +libcee_syslog_la_LIBADD = @JSON_LIBS@ +libcee_syslog_la_CFLAGS = @JSON_CFLAGS@ + +libcee_syslog_la_SOURCES = \ + cee-syslog.c cee-syslog.h + +libcee_syslog_includedir = $(includedir)/cee +libcee_syslog_include_HEADERS = \ + cee-syslog.h + +pkgconfigdir = $(libdir)/pkgconfig +pkgconfig_DATA = libcee-syslog.pc diff --git a/lib/cee-syslog.c b/lib/cee-syslog.c new file mode 100644 index 0000000..7e9cdec --- /dev/null +++ b/lib/cee-syslog.c @@ -0,0 +1,91 @@ +/* cee-syslog.c -- CEE-enhanced syslog API. + * + * Copyright (c) 2012 BalaBit IT Security Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY BALABIT AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BALABIT OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#define _GNU_SOURCE 1 + +#include "cee-syslog.h" + +#include <syslog.h> +#include <stdarg.h> +#include <unistd.h> +#include <json.h> +#include <stdio.h> +#include <dlfcn.h> +#include <stdlib.h> + +static void (*old_syslog) (); + +static void cee_init (void) __attribute__((constructor)); + +static void +cee_init (void) +{ + old_syslog = dlsym (RTLD_NEXT, "syslog"); +} + +void +cee_syslog (int priority, const char *msg_format, ...) +{ + va_list ap; + + va_start (ap, msg_format); + vsyslog (priority, msg_format, ap); + va_end (ap); +} + +void +cee_vsyslog (int priority, const char *msg_format, va_list ap) +{ + struct json_object *jo; + char *key, *fmt; + char *value; + + jo = json_object_new_object (); + + vasprintf (&value, msg_format, ap); + json_object_object_add (jo, "msg", json_object_new_string (value)); + free (value); + + while ((key = (char *)va_arg (ap, char *)) != NULL) + { + fmt = (char *)va_arg (ap, char *); + + vasprintf (&value, fmt, ap); + json_object_object_add (jo, key, + json_object_new_string (value)); + free (value); + } + + old_syslog (priority, "@cee:%s", json_object_to_json_string (jo)); + json_object_put (jo); +} + +void syslog (int priority, const char *format, ...) + __attribute__((alias ("cee_syslog"))); + +void vsyslog (int priority, const char *format, va_list ap) + __attribute__((alias ("cee_vsyslog"))); diff --git a/lib/cee-syslog.h b/lib/cee-syslog.h new file mode 100644 index 0000000..4c35cea --- /dev/null +++ b/lib/cee-syslog.h @@ -0,0 +1,37 @@ +/* cee-syslog.h -- CEE-enhanced syslog API. + * + * Copyright (c) 2012 BalaBit IT Security Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY BALABIT AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BALABIT OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef CEE_SYSLOG_H +#define CEE_SYSLOG_H 1 + +#include <syslog.h> +#include <stdarg.h> + +void cee_syslog (int priority, const char *msg_format, ...); +void cee_vsyslog (int priority, const char *msg_format, va_list ap); + +#endif diff --git a/lib/libcee-syslog.pc.in b/lib/libcee-syslog.pc.in new file mode 100644 index 0000000..7b2d896 --- /dev/null +++ b/lib/libcee-syslog.pc.in @@ -0,0 +1,10 @@ +prefix=@prefix@ +exec_prefix=@exec_prefix@ +libdir=@libdir@ +includedir=@includedir@ + +Name: libcee-syslog +Version: @VERSION@ +Description: CEE-enhanced syslog() API +URL: https://github.com/algernon/libcee-syslog +Libs: -L${libdir} -lcee-syslog -ldl |