1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
27*0Sstevel@tonic-gate
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdlib.h>
30*0Sstevel@tonic-gate #include <unistd.h>
31*0Sstevel@tonic-gate #include <stdio.h>
32*0Sstevel@tonic-gate #include <errno.h>
33*0Sstevel@tonic-gate #include <string.h>
34*0Sstevel@tonic-gate #include <stdarg.h>
35*0Sstevel@tonic-gate #include <sys/types.h>
36*0Sstevel@tonic-gate #include <time.h>
37*0Sstevel@tonic-gate #include <syslog.h>
38*0Sstevel@tonic-gate #include <sys/socket.h>
39*0Sstevel@tonic-gate #include <netinet/in.h>
40*0Sstevel@tonic-gate #include <arpa/inet.h>
41*0Sstevel@tonic-gate #include <netdb.h>
42*0Sstevel@tonic-gate #include <libgen.h>
43*0Sstevel@tonic-gate
44*0Sstevel@tonic-gate
45*0Sstevel@tonic-gate #include "snmp_msg.h"
46*0Sstevel@tonic-gate #include "impl.h"
47*0Sstevel@tonic-gate #include "trace.h"
48*0Sstevel@tonic-gate #include "error.h"
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate
51*0Sstevel@tonic-gate int error_size = DEFAULT_ERROR_SIZE;
52*0Sstevel@tonic-gate
53*0Sstevel@tonic-gate char error_label[1000] = "";
54*0Sstevel@tonic-gate
55*0Sstevel@tonic-gate
56*0Sstevel@tonic-gate static char *application_name = NULL;
57*0Sstevel@tonic-gate static void (*application_end)() = NULL;
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate
60*0Sstevel@tonic-gate /*
61*0Sstevel@tonic-gate * this function will exit on any error
62*0Sstevel@tonic-gate */
63*0Sstevel@tonic-gate
error_init(char * name,void end ())64*0Sstevel@tonic-gate void error_init(char *name, void end())
65*0Sstevel@tonic-gate {
66*0Sstevel@tonic-gate char *ptr;
67*0Sstevel@tonic-gate
68*0Sstevel@tonic-gate
69*0Sstevel@tonic-gate if(name == NULL)
70*0Sstevel@tonic-gate {
71*0Sstevel@tonic-gate (void)fprintf(stderr, "BUG: error_init(): name is NULL");
72*0Sstevel@tonic-gate exit(1);
73*0Sstevel@tonic-gate }
74*0Sstevel@tonic-gate
75*0Sstevel@tonic-gate ptr = basename(name);
76*0Sstevel@tonic-gate if(ptr == NULL)
77*0Sstevel@tonic-gate {
78*0Sstevel@tonic-gate (void)fprintf(stderr, "error_init(): bad application name: %s",
79*0Sstevel@tonic-gate name);
80*0Sstevel@tonic-gate exit(1);
81*0Sstevel@tonic-gate }
82*0Sstevel@tonic-gate
83*0Sstevel@tonic-gate application_name = strdup(ptr);
84*0Sstevel@tonic-gate if(application_name == NULL)
85*0Sstevel@tonic-gate {
86*0Sstevel@tonic-gate (void)fprintf(stderr, ERR_MSG_ALLOC);
87*0Sstevel@tonic-gate exit(1);
88*0Sstevel@tonic-gate }
89*0Sstevel@tonic-gate
90*0Sstevel@tonic-gate if(end == NULL)
91*0Sstevel@tonic-gate {
92*0Sstevel@tonic-gate (void)fprintf(stderr, "BUG: error_init(): end is NULL");
93*0Sstevel@tonic-gate exit(1);
94*0Sstevel@tonic-gate }
95*0Sstevel@tonic-gate
96*0Sstevel@tonic-gate application_end = end;
97*0Sstevel@tonic-gate
98*0Sstevel@tonic-gate openlog(name, LOG_CONS, LOG_DAEMON);
99*0Sstevel@tonic-gate }
100*0Sstevel@tonic-gate
101*0Sstevel@tonic-gate
102*0Sstevel@tonic-gate /* ARGSUSED */
error_open(char * filename)103*0Sstevel@tonic-gate void error_open(char *filename)
104*0Sstevel@tonic-gate {
105*0Sstevel@tonic-gate return;
106*0Sstevel@tonic-gate }
107*0Sstevel@tonic-gate
108*0Sstevel@tonic-gate
error_close_stderr()109*0Sstevel@tonic-gate void error_close_stderr()
110*0Sstevel@tonic-gate {
111*0Sstevel@tonic-gate return;
112*0Sstevel@tonic-gate }
113*0Sstevel@tonic-gate
error(char * format,...)114*0Sstevel@tonic-gate void error(char *format, ...)
115*0Sstevel@tonic-gate {
116*0Sstevel@tonic-gate va_list ap;
117*0Sstevel@tonic-gate int32_t len;
118*0Sstevel@tonic-gate char static_buffer[4096];
119*0Sstevel@tonic-gate
120*0Sstevel@tonic-gate va_start(ap, format);
121*0Sstevel@tonic-gate
122*0Sstevel@tonic-gate /* remove '\n's at the end of format */
123*0Sstevel@tonic-gate /* LINTED */
124*0Sstevel@tonic-gate len = (int32_t)strlen(format);
125*0Sstevel@tonic-gate while((len > 0) && (format[len - 1] == '\n')) {
126*0Sstevel@tonic-gate format[len - 1] = '\0';
127*0Sstevel@tonic-gate len--;
128*0Sstevel@tonic-gate }
129*0Sstevel@tonic-gate
130*0Sstevel@tonic-gate (void) vsnprintf(static_buffer, sizeof (static_buffer), format, ap);
131*0Sstevel@tonic-gate va_end(ap);
132*0Sstevel@tonic-gate
133*0Sstevel@tonic-gate if(trace_level > 0)
134*0Sstevel@tonic-gate trace("%s", static_buffer);
135*0Sstevel@tonic-gate
136*0Sstevel@tonic-gate syslog(LOG_ERR, "%s", static_buffer);
137*0Sstevel@tonic-gate }
138*0Sstevel@tonic-gate
139*0Sstevel@tonic-gate
error_exit(char * format,...)140*0Sstevel@tonic-gate void error_exit(char *format, ...)
141*0Sstevel@tonic-gate {
142*0Sstevel@tonic-gate va_list ap;
143*0Sstevel@tonic-gate int32_t len;
144*0Sstevel@tonic-gate char static_buffer[4096];
145*0Sstevel@tonic-gate
146*0Sstevel@tonic-gate va_start(ap, format);
147*0Sstevel@tonic-gate
148*0Sstevel@tonic-gate /* remove '\n's at the end of format */
149*0Sstevel@tonic-gate /* LINTED */
150*0Sstevel@tonic-gate len = (int32_t)strlen(format);
151*0Sstevel@tonic-gate while((len > 0) && (format[len - 1] == '\n')) {
152*0Sstevel@tonic-gate format[len - 1] = '\0';
153*0Sstevel@tonic-gate len--;
154*0Sstevel@tonic-gate }
155*0Sstevel@tonic-gate
156*0Sstevel@tonic-gate (void) vsnprintf(static_buffer, sizeof (static_buffer), format, ap);
157*0Sstevel@tonic-gate va_end(ap);
158*0Sstevel@tonic-gate
159*0Sstevel@tonic-gate application_end();
160*0Sstevel@tonic-gate
161*0Sstevel@tonic-gate if(trace_level > 0)
162*0Sstevel@tonic-gate trace("%s", static_buffer);
163*0Sstevel@tonic-gate
164*0Sstevel@tonic-gate syslog(LOG_ERR, "%s", static_buffer);
165*0Sstevel@tonic-gate
166*0Sstevel@tonic-gate exit(1);
167*0Sstevel@tonic-gate }
168*0Sstevel@tonic-gate
169*0Sstevel@tonic-gate
errno_string()170*0Sstevel@tonic-gate char *errno_string()
171*0Sstevel@tonic-gate {
172*0Sstevel@tonic-gate static char buffer[100];
173*0Sstevel@tonic-gate
174*0Sstevel@tonic-gate sprintf(buffer, "[errno: %s(%d)]",
175*0Sstevel@tonic-gate strerror(errno), errno);
176*0Sstevel@tonic-gate
177*0Sstevel@tonic-gate return buffer;
178*0Sstevel@tonic-gate }
179*0Sstevel@tonic-gate
180*0Sstevel@tonic-gate
h_errno_string()181*0Sstevel@tonic-gate char *h_errno_string()
182*0Sstevel@tonic-gate {
183*0Sstevel@tonic-gate static char buffer[100];
184*0Sstevel@tonic-gate char *ptr = NULL;
185*0Sstevel@tonic-gate
186*0Sstevel@tonic-gate switch(h_errno)
187*0Sstevel@tonic-gate {
188*0Sstevel@tonic-gate case HOST_NOT_FOUND:
189*0Sstevel@tonic-gate ptr = "host not found";
190*0Sstevel@tonic-gate break;
191*0Sstevel@tonic-gate case TRY_AGAIN:
192*0Sstevel@tonic-gate ptr = "try again";
193*0Sstevel@tonic-gate break;
194*0Sstevel@tonic-gate case NO_RECOVERY:
195*0Sstevel@tonic-gate ptr = "no recovery";
196*0Sstevel@tonic-gate break;
197*0Sstevel@tonic-gate case NO_DATA:
198*0Sstevel@tonic-gate ptr = "no data";
199*0Sstevel@tonic-gate break;
200*0Sstevel@tonic-gate default:
201*0Sstevel@tonic-gate ptr = "???";
202*0Sstevel@tonic-gate break;
203*0Sstevel@tonic-gate }
204*0Sstevel@tonic-gate
205*0Sstevel@tonic-gate sprintf(buffer, "[h_errno: %s(%d)]",
206*0Sstevel@tonic-gate ptr, h_errno);
207*0Sstevel@tonic-gate
208*0Sstevel@tonic-gate return buffer;
209*0Sstevel@tonic-gate }
210*0Sstevel@tonic-gate
211*0Sstevel@tonic-gate
212