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#if !defined(lint) && !defined(SABER)
static const char rcsid[] = "$Id: ctl_p.c,v 1.4 2005/04/27 04:56:35 sra Exp $";
#endif /* not lint */
/*
* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
* Copyright (c) 1998,1999 by Internet Software Consortium.
*
* 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 ISC DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC 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.
*/
/* Extern. */
#include "port_before.h"
#include <sys/param.h>
#include <sys/file.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <arpa/inet.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <isc/assertions.h>
#include <isc/eventlib.h>
#include <isc/logging.h>
#include <isc/memcluster.h>
#include <isc/ctl.h>
#include "ctl_p.h"
#include "port_after.h"
/* Constants. */
const char * const ctl_sevnames[] = {
"debug", "warning", "error"
};
/* Public. */
/*%
* ctl_logger()
* if ctl_startup()'s caller didn't specify a logger, this one
* is used. this pollutes stderr with all kinds of trash so it will
* probably never be used in real applications.
*/
void
ctl_logger(enum ctl_severity severity, const char *format, ...) {
va_list ap;
static const char me[] = "ctl_logger";
fprintf(stderr, "%s(%s): ", me, ctl_sevnames[severity]);
va_start(ap, format);
vfprintf(stderr, format, ap);
va_end(ap);
fputc('\n', stderr);
}
int
ctl_bufget(struct ctl_buf *buf, ctl_logfunc logger) {
static const char me[] = "ctl_bufget";
REQUIRE(!allocated_p(*buf) && buf->used == 0U);
buf->text = memget(MAX_LINELEN);
if (!allocated_p(*buf)) {
(*logger)(ctl_error, "%s: getmem: %s", me, strerror(errno));
return (-1);
}
buf->used = 0;
return (0);
}
void
ctl_bufput(struct ctl_buf *buf) {
REQUIRE(allocated_p(*buf));
memput(buf->text, MAX_LINELEN);
buf->text = NULL;
buf->used = 0;
}
const char *
ctl_sa_ntop(const struct sockaddr *sa,
char *buf, size_t size,
ctl_logfunc logger)
{
static const char me[] = "ctl_sa_ntop";
static const char punt[] = "[0].-1";
char tmp[INET6_ADDRSTRLEN];
switch (sa->sa_family) {
case AF_INET6: {
const struct sockaddr_in6 *in6 =
(const struct sockaddr_in6 *) sa;
if (inet_ntop(in6->sin6_family, &in6->sin6_addr, tmp, sizeof tmp)
== NULL) {
(*logger)(ctl_error, "%s: inet_ntop(%u %04x): %s",
me, in6->sin6_family,
in6->sin6_port, strerror(errno));
return (punt);
}
if (strlen(tmp) + sizeof "[].65535" > size) {
(*logger)(ctl_error, "%s: buffer overflow", me);
return (punt);
}
(void) sprintf(buf, "[%s].%u", tmp, ntohs(in6->sin6_port));
return (buf);
}
case AF_INET: {
const struct sockaddr_in *in =
(const struct sockaddr_in *) sa;
if (inet_ntop(in->sin_family, &in->sin_addr, tmp, sizeof tmp)
== NULL) {
(*logger)(ctl_error, "%s: inet_ntop(%u %04x %08x): %s",
me, in->sin_family,
in->sin_port, in->sin_addr.s_addr,
strerror(errno));
return (punt);
}
if (strlen(tmp) + sizeof "[].65535" > size) {
(*logger)(ctl_error, "%s: buffer overflow", me);
return (punt);
}
(void) sprintf(buf, "[%s].%u", tmp, ntohs(in->sin_port));
return (buf);
}
#ifndef NO_SOCKADDR_UN
case AF_UNIX: {
const struct sockaddr_un *un =
(const struct sockaddr_un *) sa;
unsigned int x = sizeof un->sun_path;
if (x > size)
x = size;
strncpy(buf, un->sun_path, x - 1);
buf[x - 1] = '\0';
return (buf);
}
#endif
default:
return (punt);
}
}
void
ctl_sa_copy(const struct sockaddr *src, struct sockaddr *dst) {
switch (src->sa_family) {
case AF_INET6:
*((struct sockaddr_in6 *)dst) =
*((const struct sockaddr_in6 *)src);
break;
case AF_INET:
*((struct sockaddr_in *)dst) =
*((const struct sockaddr_in *)src);
break;
#ifndef NO_SOCKADDR_UN
case AF_UNIX:
*((struct sockaddr_un *)dst) =
*((const struct sockaddr_un *)src);
break;
#endif
default:
*dst = *src;
break;
}
}
/*! \file */
|
