1 /*
2 +----------------------------------------------------------------------+
3 | Copyright (c) The PHP Group |
4 +----------------------------------------------------------------------+
5 | This source file is subject to version 3.01 of the PHP license, |
6 | that is bundled with this package in the file LICENSE, and is |
7 | available through the world-wide-web at the following url: |
8 | https://www.php.net/license/3_01.txt |
9 | If you did not receive a copy of the PHP license and are unable to |
10 | obtain it through the world-wide-web, please send a note to |
11 | license@php.net so we can mail you a copy immediately. |
12 +----------------------------------------------------------------------+
13 | Author: Philip Prindeville <philipp@redfish-solutions.com> |
14 +----------------------------------------------------------------------+
15 */
16
17 #include <stdio.h>
18 #include <string.h>
19 #include <stdlib.h>
20 #include "php.h"
21 #include "php_syslog.h"
22
23 #include "zend.h"
24 #include "zend_smart_string.h"
25
26 /*
27 * The SCO OpenServer 5 Development System (not the UDK)
28 * defines syslog to std_syslog.
29 */
30
31 #ifdef HAVE_STD_SYSLOG
32 #define syslog std_syslog
33 #endif
34
php_syslog_str(int priority,const zend_string * message)35 PHPAPI void php_syslog_str(int priority, const zend_string* message)
36 {
37 smart_string sbuf = {0};
38
39 if (PG(syslog_filter) == PHP_SYSLOG_FILTER_RAW) {
40 /* Just send it directly to the syslog */
41 syslog(priority, "%s", ZSTR_VAL(message));
42 return;
43 }
44
45 /* We use < because we don't want the final NUL byte to be converted to '\x00' */
46 for (size_t i = 0; i < ZSTR_LEN(message); ++i) {
47 unsigned char c = ZSTR_VAL(message)[i];
48
49 /* check for NVT ASCII only unless test disabled */
50 if (((0x20 <= c) && (c <= 0x7e))) {
51 smart_string_appendc(&sbuf, c);
52 } else if ((c >= 0x80) && (PG(syslog_filter) != PHP_SYSLOG_FILTER_ASCII)) {
53 smart_string_appendc(&sbuf, c);
54 } else if (c == '\n') {
55 /* Smart string is not NUL terminated */
56 syslog(priority, "%.*s", (int)sbuf.len, sbuf.c);
57 smart_string_reset(&sbuf);
58 } else if ((c < 0x20) && (PG(syslog_filter) == PHP_SYSLOG_FILTER_ALL)) {
59 smart_string_appendc(&sbuf, c);
60 } else {
61 const char xdigits[] = "0123456789abcdef";
62
63 smart_string_appendl(&sbuf, "\\x", 2);
64 smart_string_appendc(&sbuf, xdigits[c >> 4]);
65 smart_string_appendc(&sbuf, xdigits[c & 0xf]);
66 }
67 }
68
69 /* Smart string is not NUL terminated */
70 syslog(priority, "%.*s", (int)sbuf.len, sbuf.c);
71 smart_string_free(&sbuf);
72 }
73
php_openlog(const char * ident,int option,int facility)74 void php_openlog(const char *ident, int option, int facility)
75 {
76 openlog(ident, option, facility);
77 PG(have_called_openlog) = 1;
78 }
79
php_closelog(void)80 void php_closelog(void)
81 {
82 closelog();
83 PG(have_called_openlog) = 0;
84 }
85
86 #ifdef PHP_WIN32
php_syslog(int priority,const char * format,...)87 PHPAPI void php_syslog(int priority, const char *format, ...) /* {{{ */
88 {
89 va_list args;
90
91 /*
92 * don't rely on openlog() being called by syslog() if it's
93 * not already been done; call it ourselves and pass the
94 * correct parameters!
95 */
96 if (!PG(have_called_openlog)) {
97 php_openlog(PG(syslog_ident), 0, PG(syslog_facility));
98 }
99
100 va_start(args, format);
101 vsyslog(priority, format, args);
102 va_end(args);
103 }
104 /* }}} */
105 #else
php_syslog(int priority,const char * format,...)106 PHPAPI void php_syslog(int priority, const char *format, ...) /* {{{ */
107 {
108 zend_string *fbuf = NULL;
109 va_list args;
110
111 /*
112 * don't rely on openlog() being called by syslog() if it's
113 * not already been done; call it ourselves and pass the
114 * correct parameters!
115 */
116 if (!PG(have_called_openlog)) {
117 php_openlog(PG(syslog_ident), 0, PG(syslog_facility));
118 }
119
120 va_start(args, format);
121 fbuf = zend_vstrpprintf(0, format, args);
122 va_end(args);
123
124 php_syslog_str(priority, fbuf);
125
126 zend_string_release(fbuf);
127 }
128 /* }}} */
129 #endif
130
