1
2 /*
3 * report() - calls syslog
4 */
5
6 #include <stdarg.h>
7
8 #include <stdio.h>
9 #include <syslog.h>
10 #include <string.h>
11 #include <errno.h>
12
13 #include "report.h"
14
15 #ifndef LOG_NDELAY
16 #define LOG_NDELAY 0
17 #endif
18 #ifndef LOG_DAEMON
19 #define LOG_DAEMON 0
20 #endif
21 #ifndef LOG_BOOTP
22 #define LOG_BOOTP LOG_DAEMON
23 #endif
24
25 extern int debug;
26 extern char *progname;
27
28 /*
29 * This is initialized so you get stderr until you call
30 * report_init()
31 */
32 static int stderr_only = 1;
33
34 void
report_init(int nolog)35 report_init(int nolog)
36 {
37 stderr_only = nolog;
38 #ifdef SYSLOG
39 if (!stderr_only) {
40 openlog(progname, LOG_PID | LOG_NDELAY, LOG_BOOTP);
41 }
42 #endif
43 }
44
45 /*
46 * This routine reports errors and such via stderr and syslog() if
47 * appopriate. It just helps avoid a lot of "#ifdef SYSLOG" constructs
48 * from being scattered throughout the code.
49 *
50 * The syntax is identical to syslog(3), but %m is not considered special
51 * for output to stderr (i.e. you'll see "%m" in the output. . .). Also,
52 * control strings should normally end with \n since newlines aren't
53 * automatically generated for stderr output (whereas syslog strips out all
54 * newlines and adds its own at the end).
55 */
56
57 static char *levelnames[] = {
58 #ifdef LOG_SALERT
59 "level(0): ",
60 "alert(1): ",
61 "alert(2): ",
62 "emerg(3): ",
63 "error(4): ",
64 "crit(5): ",
65 "warn(6): ",
66 "note(7): ",
67 "info(8): ",
68 "debug(9): ",
69 "level(?): "
70 #else
71 "emerg(0): ",
72 "alert(1): ",
73 "crit(2): ",
74 "error(3): ",
75 "warn(4): ",
76 "note(5): ",
77 "info(6): ",
78 "debug(7): ",
79 "level(?): "
80 #endif
81 };
82 static int numlevels = sizeof(levelnames) / sizeof(levelnames[0]);
83
84
85 /*
86 * Print a log message using syslog(3) and/or stderr.
87 * The message passed in should not include a newline.
88 */
89 void
report(int priority,const char * fmt,...)90 report(int priority, const char *fmt,...)
91 {
92 va_list ap;
93 static char buf[128];
94
95 if ((priority < 0) || (priority >= numlevels)) {
96 priority = numlevels - 1;
97 }
98 va_start(ap, fmt);
99 vsnprintf(buf, sizeof(buf), fmt, ap);
100 va_end(ap);
101
102 /*
103 * Print the message
104 */
105 if (stderr_only || (debug > 2)) {
106 fprintf(stderr, "%s: %s %s\n",
107 progname, levelnames[priority], buf);
108 }
109 #ifdef SYSLOG
110 if (!stderr_only)
111 syslog((priority | LOG_BOOTP), "%s", buf);
112 #endif
113 }
114
115
116
117 /*
118 * Return pointer to static string which gives full filesystem error message.
119 */
120 const char *
get_errmsg(void)121 get_errmsg(void)
122 {
123 return strerror(errno);
124 }
125
126 /*
127 * Local Variables:
128 * tab-width: 4
129 * c-indent-level: 4
130 * c-argdecl-indent: 4
131 * c-continued-statement-offset: 4
132 * c-continued-brace-offset: -4
133 * c-label-offset: -4
134 * c-brace-offset: 0
135 * End:
136 */
137