/* $NetBSD: ctl_p.c,v 1.1.1.5 2008/06/21 18:33:17 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 */