161 lines
3.8 KiB
C
161 lines
3.8 KiB
C
#if !defined(lint) && !defined(SABER)
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static const char rcsid[] = "$Id: ctl_p.c,v 8.7 2000/02/04 08:28:33 vixie Exp $";
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#endif /* not lint */
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/*
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* Copyright (c) 1998,1999 by Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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/* Extern. */
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#include "port_before.h"
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#include <sys/param.h>
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#include <sys/file.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <netinet/in.h>
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#include <arpa/nameser.h>
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#include <arpa/inet.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <isc/assertions.h>
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#include <isc/eventlib.h>
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#include <isc/logging.h>
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#include <isc/memcluster.h>
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#include <isc/ctl.h>
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#include "ctl_p.h"
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#include "port_after.h"
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/* Constants. */
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const char * const ctl_sevnames[] = {
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"debug", "warning", "error"
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};
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/* Public. */
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/*
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* ctl_logger()
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* if ctl_startup()'s caller didn't specify a logger, this one
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* is used. this pollutes stderr with all kinds of trash so it will
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* probably never be used in real applications.
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*/
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void
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ctl_logger(enum ctl_severity severity, const char *format, ...) {
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va_list ap;
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static const char me[] = "ctl_logger";
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fprintf(stderr, "%s(%s): ", me, ctl_sevnames[severity]);
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va_start(ap, format);
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vfprintf(stderr, format, ap);
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va_end(ap);
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fputc('\n', stderr);
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}
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int
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ctl_bufget(struct ctl_buf *buf, ctl_logfunc logger) {
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static const char me[] = "ctl_bufget";
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REQUIRE(!allocated_p(*buf) && buf->used == 0);
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buf->text = memget(MAX_LINELEN);
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if (!allocated_p(*buf)) {
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(*logger)(ctl_error, "%s: getmem: %s", me, strerror(errno));
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return (-1);
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}
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buf->used = 0;
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return (0);
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}
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void
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ctl_bufput(struct ctl_buf *buf) {
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REQUIRE(allocated_p(*buf));
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memput(buf->text, MAX_LINELEN);
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buf->text = NULL;
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buf->used = 0;
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}
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const char *
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ctl_sa_ntop(const struct sockaddr *sa,
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char *buf, size_t size,
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ctl_logfunc logger)
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{
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static const char me[] = "ctl_sa_ntop";
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static const char punt[] = "[0].-1";
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char tmp[sizeof "255.255.255.255"];
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switch (sa->sa_family) {
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case AF_INET: {
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const struct sockaddr_in *in = (struct sockaddr_in *) sa;
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if (inet_ntop(in->sin_family, &in->sin_addr, tmp, sizeof tmp)
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== NULL) {
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(*logger)(ctl_error, "%s: inet_ntop(%u %04x %08x): %s",
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me, in->sin_family,
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in->sin_port, in->sin_addr.s_addr,
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strerror(errno));
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return (punt);
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}
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if (strlen(tmp) + sizeof "[].65535" > size) {
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(*logger)(ctl_error, "%s: buffer overflow", me);
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return (punt);
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}
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(void) sprintf(buf, "[%s].%u", tmp, ntohs(in->sin_port));
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return (buf);
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}
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#ifndef NO_SOCKADDR_UN
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case AF_UNIX: {
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const struct sockaddr_un *un = (struct sockaddr_un *) sa;
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int x = sizeof un->sun_path;
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if (x > size)
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x = size;
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strncpy(buf, un->sun_path, x - 1);
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buf[x - 1] = '\0';
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return (buf);
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}
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#endif
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default:
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return (punt);
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}
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}
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void
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ctl_sa_copy(const struct sockaddr *src, struct sockaddr *dst) {
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switch (src->sa_family) {
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case AF_INET:
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*((struct sockaddr_in *)dst) = *((struct sockaddr_in *)src);
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break;
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#ifndef NO_SOCKADDR_UN
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case AF_UNIX:
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*((struct sockaddr_un *)dst) = *((struct sockaddr_un *)src);
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break;
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#endif
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default:
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*dst = *src;
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break;
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}
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}
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