diff options
Diffstat (limited to 'contrib/bind/lib/isc/ctl_p.c')
| -rw-r--r-- | contrib/bind/lib/isc/ctl_p.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/contrib/bind/lib/isc/ctl_p.c b/contrib/bind/lib/isc/ctl_p.c new file mode 100644 index 000000000000..d70a05fe7ea0 --- /dev/null +++ b/contrib/bind/lib/isc/ctl_p.c @@ -0,0 +1,156 @@ +#if !defined(lint) && !defined(SABER) +static const char rcsid[] = "$Id: ctl_p.c,v 8.6 1999/10/13 16:39:34 vixie Exp $"; +#endif /* not lint */ + +/* + * 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 INTERNET SOFTWARE CONSORTIUM DISCLAIMS + * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE + * CONSORTIUM 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 == 0); + 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[sizeof "255.255.255.255"]; + + switch (sa->sa_family) { + case AF_INET: { + const struct sockaddr_in *in = (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); + } + case AF_UNIX: { + const struct sockaddr_un *un = (struct sockaddr_un *) sa; + int x = sizeof un->sun_path; + + if (x > size) + x = size; + strncpy(buf, un->sun_path, x - 1); + buf[x - 1] = '\0'; + return (buf); + } + default: + return (punt); + } +} + +void +ctl_sa_copy(const struct sockaddr *src, struct sockaddr *dst) { + switch (src->sa_family) { + case AF_INET: + *((struct sockaddr_in *)dst) = *((struct sockaddr_in *)src); + break; + case AF_UNIX: + *((struct sockaddr_un *)dst) = *((struct sockaddr_un *)src); + break; + default: + *dst = *src; + break; + } +} |