diff options
Diffstat (limited to 'usr.sbin/dvmrpd/log.c')
| -rw-r--r-- | usr.sbin/dvmrpd/log.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/usr.sbin/dvmrpd/log.c b/usr.sbin/dvmrpd/log.c new file mode 100644 index 00000000000..f10d9e044c9 --- /dev/null +++ b/usr.sbin/dvmrpd/log.c @@ -0,0 +1,225 @@ +/* $OpenBSD: log.c,v 1.1 2006/06/01 14:12:20 norby Exp $ */ + +/* + * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <errno.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <syslog.h> +#include <unistd.h> + +#include "igmp.h" +#include "dvmrpd.h" +#include "log.h" + +static const char * const procnames[] = { + "parent", + "dvmrpe", + "rde" +}; + +int debug; + +void logit(int, const char *, ...); + +void +log_init(int n_debug) +{ + extern char *__progname; + + debug = n_debug; + + if (!debug) + openlog(__progname, LOG_PID | LOG_NDELAY, LOG_DAEMON); + + tzset(); +} + +void +logit(int pri, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + vlog(pri, fmt, ap); + va_end(ap); +} + +void +vlog(int pri, const char *fmt, va_list ap) +{ + char *nfmt; + + if (debug) { + /* best effort in out of mem situations */ + if (asprintf(&nfmt, "%s\n", fmt) == -1) { + vfprintf(stderr, fmt, ap); + fprintf(stderr, "\n"); + } else { + vfprintf(stderr, nfmt, ap); + free(nfmt); + } + fflush(stderr); + } else + vsyslog(pri, fmt, ap); +} + +void +log_warn(const char *emsg, ...) +{ + char *nfmt; + va_list ap; + + /* best effort to even work in out of memory situations */ + if (emsg == NULL) + logit(LOG_CRIT, "%s", strerror(errno)); + else { + va_start(ap, emsg); + + if (asprintf(&nfmt, "%s: %s", emsg, strerror(errno)) == -1) { + /* we tried it... */ + vlog(LOG_CRIT, emsg, ap); + logit(LOG_CRIT, "%s", strerror(errno)); + } else { + vlog(LOG_CRIT, nfmt, ap); + free(nfmt); + } + va_end(ap); + } +} + +void +log_warnx(const char *emsg, ...) +{ + va_list ap; + + va_start(ap, emsg); + vlog(LOG_CRIT, emsg, ap); + va_end(ap); +} + +void +log_info(const char *emsg, ...) +{ + va_list ap; + + va_start(ap, emsg); + vlog(LOG_INFO, emsg, ap); + va_end(ap); +} + +void +log_debug(const char *emsg, ...) +{ + va_list ap; + + if (debug) { + va_start(ap, emsg); + vlog(LOG_DEBUG, emsg, ap); + va_end(ap); + } +} + +void +fatal(const char *emsg) +{ + if (emsg == NULL) + logit(LOG_CRIT, "fatal in %s: %s", procnames[dvmrpd_process], + strerror(errno)); + else + if (errno) + logit(LOG_CRIT, "fatal in %s: %s: %s", + procnames[dvmrpd_process], emsg, strerror(errno)); + else + logit(LOG_CRIT, "fatal in %s: %s", + procnames[dvmrpd_process], emsg); + + if (dvmrpd_process == PROC_MAIN) + exit(1); + else /* parent copes via SIGCHLD */ + _exit(1); +} + +void +fatalx(const char *emsg) +{ + errno = 0; + fatal(emsg); +} + +/* names */ +const char * +nbr_state_name(int state) +{ + switch (state) { + case NBR_STA_DOWN: + return ("DOWN"); + case NBR_STA_1_WAY: + return ("1-WAY"); + case NBR_STA_2_WAY: + return ("2-WAY"); + default: + return ("UNKNOWN"); + } +} + +const char * +if_state_name(int state) +{ + switch (state) { + case IF_STA_DOWN: + return ("DOWN"); + case IF_STA_QUERIER: + return ("QUERIER"); + case IF_STA_NONQUERIER: + return ("NONQUERIER"); + default: + return ("UNKNOWN"); + } +} + +const char * +group_state_name(int state) +{ + switch (state) { + case GRP_STA_NO_MEMB_PRSNT: + return ("NO MEMBER"); + case GRP_STA_MEMB_PRSNT: + return ("MEMBER"); + case GRP_STA_V1_MEMB_PRSNT: + return ("V1 MEMBER"); + case GRP_STA_CHECK_MEMB: + return ("CHECKING"); + default: + return ("UNKNOWN"); + } +} + +const char * +if_type_name(enum iface_type type) +{ + switch (type) { + case IF_TYPE_POINTOPOINT: + return ("POINTOPOINT"); + case IF_TYPE_BROADCAST: + return ("BROADCAST"); + } + /* NOTREACHED */ + return ("UNKNOWN"); +} |