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Date:: Fri Aug 20 07:00:16 2021 UTC
Message:: Revert all access/error logging for now, needs more thought
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  1 e9864467 2021-08-08 xhr /*	$OpenBSD: log.c,v 1.1 2018/07/10 16:39:54 florian Exp $	*/
  2 edc334c2 2021-08-05 xhr 
  3 edc334c2 2021-08-05 xhr /*
  4 edc334c2 2021-08-05 xhr  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
  5 edc334c2 2021-08-05 xhr  *
  6 edc334c2 2021-08-05 xhr  * Permission to use, copy, modify, and distribute this software for any
  7 edc334c2 2021-08-05 xhr  * purpose with or without fee is hereby granted, provided that the above
  8 edc334c2 2021-08-05 xhr  * copyright notice and this permission notice appear in all copies.
  9 edc334c2 2021-08-05 xhr  *
 10 edc334c2 2021-08-05 xhr  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 11 edc334c2 2021-08-05 xhr  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 12 edc334c2 2021-08-05 xhr  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 13 edc334c2 2021-08-05 xhr  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 14 edc334c2 2021-08-05 xhr  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 15 edc334c2 2021-08-05 xhr  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 16 edc334c2 2021-08-05 xhr  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 17 edc334c2 2021-08-05 xhr  */
 18 edc334c2 2021-08-05 xhr 
 19 fb797bf6 2021-08-06 xhr #define _GNU_SOURCE
 20 fb797bf6 2021-08-06 xhr 
 21 edc334c2 2021-08-05 xhr #include <stdio.h>
 22 edc334c2 2021-08-05 xhr #include <stdlib.h>
 23 edc334c2 2021-08-05 xhr #include <stdarg.h>
 24 edc334c2 2021-08-05 xhr #include <string.h>
 25 edc334c2 2021-08-05 xhr #include <syslog.h>
 26 edc334c2 2021-08-05 xhr #include <errno.h>
 27 edc334c2 2021-08-05 xhr #include <time.h>
 28 edc334c2 2021-08-05 xhr 
 29 edc334c2 2021-08-05 xhr #include "log.h"
 30 edc334c2 2021-08-05 xhr 
 31 edc334c2 2021-08-05 xhr static int		 debug;
 32 edc334c2 2021-08-05 xhr static int		 verbose;
 33 edc334c2 2021-08-05 xhr static const char	*log_procname;
 34 edc334c2 2021-08-05 xhr 
 35 edc334c2 2021-08-05 xhr void
 36 e9864467 2021-08-08 xhr log_init(int n_debug, int facility)
 37 edc334c2 2021-08-05 xhr {
 38 edc334c2 2021-08-05 xhr 	extern char	*__progname;
 39 edc334c2 2021-08-05 xhr 
 40 edc334c2 2021-08-05 xhr 	debug = n_debug;
 41 edc334c2 2021-08-05 xhr 	verbose = n_debug;
 42 edc334c2 2021-08-05 xhr 	log_procinit(__progname);
 43 edc334c2 2021-08-05 xhr 
 44 edc334c2 2021-08-05 xhr 	if (!debug)
 45 edc334c2 2021-08-05 xhr 		openlog(__progname, LOG_PID | LOG_NDELAY, facility);
 46 edc334c2 2021-08-05 xhr 
 47 edc334c2 2021-08-05 xhr 	tzset();
 48 edc334c2 2021-08-05 xhr }
 49 edc334c2 2021-08-05 xhr 
 50 edc334c2 2021-08-05 xhr void
 51 edc334c2 2021-08-05 xhr log_procinit(const char *procname)
 52 edc334c2 2021-08-05 xhr {
 53 edc334c2 2021-08-05 xhr 	if (procname != NULL)
 54 edc334c2 2021-08-05 xhr 		log_procname = procname;
 55 edc334c2 2021-08-05 xhr }
 56 edc334c2 2021-08-05 xhr 
 57 edc334c2 2021-08-05 xhr void
 58 edc334c2 2021-08-05 xhr log_setverbose(int v)
 59 edc334c2 2021-08-05 xhr {
 60 edc334c2 2021-08-05 xhr 	verbose = v;
 61 edc334c2 2021-08-05 xhr }
 62 edc334c2 2021-08-05 xhr 
 63 edc334c2 2021-08-05 xhr int
 64 edc334c2 2021-08-05 xhr log_getverbose(void)
 65 edc334c2 2021-08-05 xhr {
 66 edc334c2 2021-08-05 xhr 	return (verbose);
 67 edc334c2 2021-08-05 xhr }
 68 edc334c2 2021-08-05 xhr 
 69 edc334c2 2021-08-05 xhr void
 70 edc334c2 2021-08-05 xhr logit(int pri, const char *fmt, ...)
 71 edc334c2 2021-08-05 xhr {
 72 edc334c2 2021-08-05 xhr 	va_list	ap;
 73 edc334c2 2021-08-05 xhr 
 74 edc334c2 2021-08-05 xhr 	va_start(ap, fmt);
 75 edc334c2 2021-08-05 xhr 	vlog(pri, fmt, ap);
 76 edc334c2 2021-08-05 xhr 	va_end(ap);
 77 edc334c2 2021-08-05 xhr }
 78 edc334c2 2021-08-05 xhr 
 79 edc334c2 2021-08-05 xhr void
 80 edc334c2 2021-08-05 xhr vlog(int pri, const char *fmt, va_list ap)
 81 edc334c2 2021-08-05 xhr {
 82 edc334c2 2021-08-05 xhr 	char	*nfmt;
 83 edc334c2 2021-08-05 xhr 	int	 saved_errno = errno;
 84 edc334c2 2021-08-05 xhr 
 85 edc334c2 2021-08-05 xhr 	if (debug) {
 86 edc334c2 2021-08-05 xhr 		/* best effort in out of mem situations */
 87 edc334c2 2021-08-05 xhr 		if (asprintf(&nfmt, "%s\n", fmt) == -1) {
 88 edc334c2 2021-08-05 xhr 			vfprintf(stderr, fmt, ap);
 89 edc334c2 2021-08-05 xhr 			fprintf(stderr, "\n");
 90 edc334c2 2021-08-05 xhr 		} else {
 91 edc334c2 2021-08-05 xhr 			vfprintf(stderr, nfmt, ap);
 92 edc334c2 2021-08-05 xhr 			free(nfmt);
 93 edc334c2 2021-08-05 xhr 		}
 94 edc334c2 2021-08-05 xhr 		fflush(stderr);
 95 edc334c2 2021-08-05 xhr 	} else
 96 edc334c2 2021-08-05 xhr 		vsyslog(pri, fmt, ap);
 97 edc334c2 2021-08-05 xhr 
 98 edc334c2 2021-08-05 xhr 	errno = saved_errno;
 99 edc334c2 2021-08-05 xhr }
100 edc334c2 2021-08-05 xhr 
101 edc334c2 2021-08-05 xhr void
102 e9864467 2021-08-08 xhr log_warn(const char *emsg, ...)
103 edc334c2 2021-08-05 xhr {
104 edc334c2 2021-08-05 xhr 	char		*nfmt;
105 edc334c2 2021-08-05 xhr 	va_list		 ap;
106 edc334c2 2021-08-05 xhr 	int		 saved_errno = errno;
107 edc334c2 2021-08-05 xhr 
108 edc334c2 2021-08-05 xhr 	/* best effort to even work in out of memory situations */
109 edc334c2 2021-08-05 xhr 	if (emsg == NULL)
110 edc334c2 2021-08-05 xhr 		logit(LOG_ERR, "%s", strerror(saved_errno));
111 edc334c2 2021-08-05 xhr 	else {
112 edc334c2 2021-08-05 xhr 		va_start(ap, emsg);
113 edc334c2 2021-08-05 xhr 
114 edc334c2 2021-08-05 xhr 		if (asprintf(&nfmt, "%s: %s", emsg,
115 edc334c2 2021-08-05 xhr 		    strerror(saved_errno)) == -1) {
116 edc334c2 2021-08-05 xhr 			/* we tried it... */
117 edc334c2 2021-08-05 xhr 			vlog(LOG_ERR, emsg, ap);
118 edc334c2 2021-08-05 xhr 			logit(LOG_ERR, "%s", strerror(saved_errno));
119 edc334c2 2021-08-05 xhr 		} else {
120 edc334c2 2021-08-05 xhr 			vlog(LOG_ERR, nfmt, ap);
121 edc334c2 2021-08-05 xhr 			free(nfmt);
122 edc334c2 2021-08-05 xhr 		}
123 edc334c2 2021-08-05 xhr 		va_end(ap);
124 edc334c2 2021-08-05 xhr 	}
125 edc334c2 2021-08-05 xhr 
126 edc334c2 2021-08-05 xhr 	errno = saved_errno;
127 edc334c2 2021-08-05 xhr }
128 edc334c2 2021-08-05 xhr 
129 edc334c2 2021-08-05 xhr void
130 edc334c2 2021-08-05 xhr log_warnx(const char *emsg, ...)
131 edc334c2 2021-08-05 xhr {
132 edc334c2 2021-08-05 xhr 	va_list	 ap;
133 edc334c2 2021-08-05 xhr 
134 edc334c2 2021-08-05 xhr 	va_start(ap, emsg);
135 edc334c2 2021-08-05 xhr 	vlog(LOG_ERR, emsg, ap);
136 edc334c2 2021-08-05 xhr 	va_end(ap);
137 edc334c2 2021-08-05 xhr }
138 edc334c2 2021-08-05 xhr 
139 edc334c2 2021-08-05 xhr void
140 e9864467 2021-08-08 xhr log_info(const char *emsg, ...)
141 edc334c2 2021-08-05 xhr {
142 edc334c2 2021-08-05 xhr 	va_list	 ap;
143 edc334c2 2021-08-05 xhr 
144 edc334c2 2021-08-05 xhr 	va_start(ap, emsg);
145 edc334c2 2021-08-05 xhr 	vlog(LOG_INFO, emsg, ap);
146 edc334c2 2021-08-05 xhr 	va_end(ap);
147 edc334c2 2021-08-05 xhr }
148 edc334c2 2021-08-05 xhr 
149 edc334c2 2021-08-05 xhr void
150 edc334c2 2021-08-05 xhr log_debug(const char *emsg, ...)
151 edc334c2 2021-08-05 xhr {
152 edc334c2 2021-08-05 xhr 	va_list	 ap;
153 edc334c2 2021-08-05 xhr 
154 edc334c2 2021-08-05 xhr 	if (verbose) {
155 edc334c2 2021-08-05 xhr 		va_start(ap, emsg);
156 edc334c2 2021-08-05 xhr 		vlog(LOG_DEBUG, emsg, ap);
157 edc334c2 2021-08-05 xhr 		va_end(ap);
158 edc334c2 2021-08-05 xhr 	}
159 edc334c2 2021-08-05 xhr }
160 edc334c2 2021-08-05 xhr 
161 edc334c2 2021-08-05 xhr static void
162 edc334c2 2021-08-05 xhr vfatalc(int code, const char *emsg, va_list ap)
163 edc334c2 2021-08-05 xhr {
164 edc334c2 2021-08-05 xhr 	static char	s[BUFSIZ];
165 edc334c2 2021-08-05 xhr 	const char	*sep;
166 edc334c2 2021-08-05 xhr 
167 edc334c2 2021-08-05 xhr 	if (emsg != NULL) {
168 edc334c2 2021-08-05 xhr 		(void)vsnprintf(s, sizeof(s), emsg, ap);
169 edc334c2 2021-08-05 xhr 		sep = ": ";
170 edc334c2 2021-08-05 xhr 	} else {
171 edc334c2 2021-08-05 xhr 		s[0] = '\0';
172 edc334c2 2021-08-05 xhr 		sep = "";
173 edc334c2 2021-08-05 xhr 	}
174 edc334c2 2021-08-05 xhr 	if (code)
175 edc334c2 2021-08-05 xhr 		logit(LOG_CRIT, "fatal in %s: %s%s%s",
176 edc334c2 2021-08-05 xhr 		    log_procname, s, sep, strerror(code));
177 edc334c2 2021-08-05 xhr 	else
178 edc334c2 2021-08-05 xhr 		logit(LOG_CRIT, "fatal in %s%s%s", log_procname, sep, s);
179 edc334c2 2021-08-05 xhr }
180 edc334c2 2021-08-05 xhr 
181 edc334c2 2021-08-05 xhr void
182 edc334c2 2021-08-05 xhr fatal(const char *emsg, ...)
183 edc334c2 2021-08-05 xhr {
184 edc334c2 2021-08-05 xhr 	va_list	ap;
185 edc334c2 2021-08-05 xhr 
186 edc334c2 2021-08-05 xhr 	va_start(ap, emsg);
187 edc334c2 2021-08-05 xhr 	vfatalc(errno, emsg, ap);
188 edc334c2 2021-08-05 xhr 	va_end(ap);
189 edc334c2 2021-08-05 xhr 	exit(1);
190 edc334c2 2021-08-05 xhr }
191 edc334c2 2021-08-05 xhr 
192 edc334c2 2021-08-05 xhr void
193 edc334c2 2021-08-05 xhr fatalx(const char *emsg, ...)
194 edc334c2 2021-08-05 xhr {
195 edc334c2 2021-08-05 xhr 	va_list	ap;
196 edc334c2 2021-08-05 xhr 
197 edc334c2 2021-08-05 xhr 	va_start(ap, emsg);
198 edc334c2 2021-08-05 xhr 	vfatalc(0, emsg, ap);
199 edc334c2 2021-08-05 xhr 	va_end(ap);
200 edc334c2 2021-08-05 xhr 	exit(1);
201 edc334c2 2021-08-05 xhr }