/*      $NetBSD: ctl_p.c,v 1.1.1.2 2012/09/09 16:08:01 christos Exp $   */

#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 */

You are viewing proxied material from ftp.icm.edu.pl. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.