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Diffstat (limited to 'lib/liblwres/lwresutil.c')
-rw-r--r--lib/liblwres/lwresutil.c491
1 files changed, 0 insertions, 491 deletions
diff --git a/lib/liblwres/lwresutil.c b/lib/liblwres/lwresutil.c
deleted file mode 100644
index 60f330e76..000000000
--- a/lib/liblwres/lwresutil.c
+++ /dev/null
@@ -1,491 +0,0 @@
-/*
- * Copyright (C) 2000, 2001 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.
- */
-
-/* $Id: lwresutil.c,v 1.1 2004/03/15 20:35:25 as Exp $ */
-
-#include <config.h>
-
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <lwres/lwbuffer.h>
-#include <lwres/lwres.h>
-#include <lwres/result.h>
-
-#include "assert_p.h"
-#include "context_p.h"
-
-/*
- * Requires:
- *
- * The "current" pointer in "b" points to encoded raw data.
- *
- * Ensures:
- *
- * The address of the first byte of the data is returned via "p",
- * and the length is returned via "len". If NULL, they are not
- * set.
- *
- * On return, the current pointer of "b" will point to the character
- * following the data length and the data.
- *
- */
-lwres_result_t
-lwres_data_parse(lwres_buffer_t *b, unsigned char **p, lwres_uint16_t *len)
-{
- lwres_uint16_t datalen;
- unsigned char *data;
-
- REQUIRE(b != NULL);
-
- /*
- * Pull off the length (2 bytes)
- */
- if (!SPACE_REMAINING(b, 2))
- return (LWRES_R_UNEXPECTEDEND);
- datalen = lwres_buffer_getuint16(b);
-
- /*
- * Set the pointer to this string to the right place, then
- * advance the buffer pointer.
- */
- if (!SPACE_REMAINING(b, datalen))
- return (LWRES_R_UNEXPECTEDEND);
- data = b->base + b->current;
- lwres_buffer_forward(b, datalen);
-
- if (len != NULL)
- *len = datalen;
- if (p != NULL)
- *p = data;
-
- return (LWRES_R_SUCCESS);
-}
-
-/*
- * Requires:
- *
- * The "current" pointer in "b" point to an encoded string.
- *
- * Ensures:
- *
- * The address of the first byte of the string is returned via "c",
- * and the length is returned via "len". If NULL, they are not
- * set.
- *
- * On return, the current pointer of "b" will point to the character
- * following the string length, the string, and the trailing NULL.
- *
- */
-lwres_result_t
-lwres_string_parse(lwres_buffer_t *b, char **c, lwres_uint16_t *len)
-{
- lwres_uint16_t datalen;
- char *string;
-
- REQUIRE(b != NULL);
-
- /*
- * Pull off the length (2 bytes)
- */
- if (!SPACE_REMAINING(b, 2))
- return (LWRES_R_UNEXPECTEDEND);
- datalen = lwres_buffer_getuint16(b);
-
- /*
- * Set the pointer to this string to the right place, then
- * advance the buffer pointer.
- */
- if (!SPACE_REMAINING(b, datalen))
- return (LWRES_R_UNEXPECTEDEND);
- string = (char *)b->base + b->current;
- lwres_buffer_forward(b, datalen);
-
- /*
- * Skip the "must be zero" byte.
- */
- if (!SPACE_REMAINING(b, 1))
- return (LWRES_R_UNEXPECTEDEND);
- if (0 != lwres_buffer_getuint8(b))
- return (LWRES_R_FAILURE);
-
- if (len != NULL)
- *len = datalen;
- if (c != NULL)
- *c = string;
-
- return (LWRES_R_SUCCESS);
-}
-
-lwres_result_t
-lwres_addr_parse(lwres_buffer_t *b, lwres_addr_t *addr)
-{
- REQUIRE(addr != NULL);
-
- if (!SPACE_REMAINING(b, 6))
- return (LWRES_R_UNEXPECTEDEND);
-
- addr->family = lwres_buffer_getuint32(b);
- addr->length = lwres_buffer_getuint16(b);
-
- if (!SPACE_REMAINING(b, addr->length))
- return (LWRES_R_UNEXPECTEDEND);
- if (addr->length > LWRES_ADDR_MAXLEN)
- return (LWRES_R_FAILURE);
-
- lwres_buffer_getmem(b, addr->address, addr->length);
-
- return (LWRES_R_SUCCESS);
-}
-
-lwres_result_t
-lwres_getaddrsbyname(lwres_context_t *ctx, const char *name,
- lwres_uint32_t addrtypes, lwres_gabnresponse_t **structp)
-{
- lwres_gabnrequest_t request;
- lwres_gabnresponse_t *response;
- int ret;
- int recvlen;
- lwres_buffer_t b_in, b_out;
- lwres_lwpacket_t pkt;
- lwres_uint32_t serial;
- char *buffer;
- char target_name[1024];
- unsigned int target_length;
-
- REQUIRE(ctx != NULL);
- REQUIRE(name != NULL);
- REQUIRE(addrtypes != 0);
- REQUIRE(structp != NULL && *structp == NULL);
-
- b_in.base = NULL;
- b_out.base = NULL;
- response = NULL;
- buffer = NULL;
- serial = lwres_context_nextserial(ctx);
-
- buffer = CTXMALLOC(LWRES_RECVLENGTH);
- if (buffer == NULL) {
- ret = LWRES_R_NOMEMORY;
- goto out;
- }
-
- target_length = strlen(name);
- if (target_length >= sizeof(target_name))
- return (LWRES_R_FAILURE);
- strcpy(target_name, name); /* strcpy is safe */
-
- /*
- * Set up our request and render it to a buffer.
- */
- request.flags = 0;
- request.addrtypes = addrtypes;
- request.name = target_name;
- request.namelen = target_length;
- pkt.pktflags = 0;
- pkt.serial = serial;
- pkt.result = 0;
- pkt.recvlength = LWRES_RECVLENGTH;
-
- again:
- ret = lwres_gabnrequest_render(ctx, &request, &pkt, &b_out);
- if (ret != LWRES_R_SUCCESS)
- goto out;
-
- ret = lwres_context_sendrecv(ctx, b_out.base, b_out.length, buffer,
- LWRES_RECVLENGTH, &recvlen);
- if (ret != LWRES_R_SUCCESS)
- goto out;
-
- lwres_buffer_init(&b_in, buffer, recvlen);
- b_in.used = recvlen;
-
- /*
- * Parse the packet header.
- */
- ret = lwres_lwpacket_parseheader(&b_in, &pkt);
- if (ret != LWRES_R_SUCCESS)
- goto out;
-
- /*
- * Sanity check.
- */
- if (pkt.serial != serial)
- goto again;
- if (pkt.opcode != LWRES_OPCODE_GETADDRSBYNAME)
- goto again;
-
- /*
- * Free what we've transmitted
- */
- CTXFREE(b_out.base, b_out.length);
- b_out.base = NULL;
- b_out.length = 0;
-
- if (pkt.result != LWRES_R_SUCCESS) {
- ret = pkt.result;
- goto out;
- }
-
- /*
- * Parse the response.
- */
- ret = lwres_gabnresponse_parse(ctx, &b_in, &pkt, &response);
- if (ret != LWRES_R_SUCCESS)
- goto out;
- response->base = buffer;
- response->baselen = LWRES_RECVLENGTH;
- buffer = NULL; /* don't free this below */
-
- *structp = response;
- return (LWRES_R_SUCCESS);
-
- out:
- if (b_out.base != NULL)
- CTXFREE(b_out.base, b_out.length);
- if (buffer != NULL)
- CTXFREE(buffer, LWRES_RECVLENGTH);
- if (response != NULL)
- lwres_gabnresponse_free(ctx, &response);
-
- return (ret);
-}
-
-
-lwres_result_t
-lwres_getnamebyaddr(lwres_context_t *ctx, lwres_uint32_t addrtype,
- lwres_uint16_t addrlen, const unsigned char *addr,
- lwres_gnbaresponse_t **structp)
-{
- lwres_gnbarequest_t request;
- lwres_gnbaresponse_t *response;
- int ret;
- int recvlen;
- lwres_buffer_t b_in, b_out;
- lwres_lwpacket_t pkt;
- lwres_uint32_t serial;
- char *buffer;
-
- REQUIRE(ctx != NULL);
- REQUIRE(addrtype != 0);
- REQUIRE(addrlen != 0);
- REQUIRE(addr != NULL);
- REQUIRE(structp != NULL && *structp == NULL);
-
- b_in.base = NULL;
- b_out.base = NULL;
- response = NULL;
- buffer = NULL;
- serial = lwres_context_nextserial(ctx);
-
- buffer = CTXMALLOC(LWRES_RECVLENGTH);
- if (buffer == NULL) {
- ret = LWRES_R_NOMEMORY;
- goto out;
- }
-
- /*
- * Set up our request and render it to a buffer.
- */
- request.flags = 0;
- request.addr.family = addrtype;
- request.addr.length = addrlen;
- memcpy(request.addr.address, addr, addrlen);
- pkt.pktflags = 0;
- pkt.serial = serial;
- pkt.result = 0;
- pkt.recvlength = LWRES_RECVLENGTH;
-
- again:
- ret = lwres_gnbarequest_render(ctx, &request, &pkt, &b_out);
- if (ret != LWRES_R_SUCCESS)
- goto out;
-
- ret = lwres_context_sendrecv(ctx, b_out.base, b_out.length, buffer,
- LWRES_RECVLENGTH, &recvlen);
- if (ret != LWRES_R_SUCCESS)
- goto out;
-
- lwres_buffer_init(&b_in, buffer, recvlen);
- b_in.used = recvlen;
-
- /*
- * Parse the packet header.
- */
- ret = lwres_lwpacket_parseheader(&b_in, &pkt);
- if (ret != LWRES_R_SUCCESS)
- goto out;
-
- /*
- * Sanity check.
- */
- if (pkt.serial != serial)
- goto again;
- if (pkt.opcode != LWRES_OPCODE_GETNAMEBYADDR)
- goto again;
-
- /*
- * Free what we've transmitted
- */
- CTXFREE(b_out.base, b_out.length);
- b_out.base = NULL;
- b_out.length = 0;
-
- if (pkt.result != LWRES_R_SUCCESS) {
- ret = pkt.result;
- goto out;
- }
-
- /*
- * Parse the response.
- */
- ret = lwres_gnbaresponse_parse(ctx, &b_in, &pkt, &response);
- if (ret != LWRES_R_SUCCESS)
- goto out;
- response->base = buffer;
- response->baselen = LWRES_RECVLENGTH;
- buffer = NULL; /* don't free this below */
-
- *structp = response;
- return (LWRES_R_SUCCESS);
-
- out:
- if (b_out.base != NULL)
- CTXFREE(b_out.base, b_out.length);
- if (buffer != NULL)
- CTXFREE(buffer, LWRES_RECVLENGTH);
- if (response != NULL)
- lwres_gnbaresponse_free(ctx, &response);
-
- return (ret);
-}
-
-lwres_result_t
-lwres_getrdatabyname(lwres_context_t *ctx, const char *name,
- lwres_uint16_t rdclass, lwres_uint16_t rdtype,
- lwres_uint32_t flags, lwres_grbnresponse_t **structp)
-{
- int ret;
- int recvlen;
- lwres_buffer_t b_in, b_out;
- lwres_lwpacket_t pkt;
- lwres_uint32_t serial;
- char *buffer;
- lwres_grbnrequest_t request;
- lwres_grbnresponse_t *response;
- char target_name[1024];
- unsigned int target_length;
-
- REQUIRE(ctx != NULL);
- REQUIRE(name != NULL);
- REQUIRE(structp != NULL && *structp == NULL);
-
- b_in.base = NULL;
- b_out.base = NULL;
- response = NULL;
- buffer = NULL;
- serial = lwres_context_nextserial(ctx);
-
- buffer = CTXMALLOC(LWRES_RECVLENGTH);
- if (buffer == NULL) {
- ret = LWRES_R_NOMEMORY;
- goto out;
- }
-
- target_length = strlen(name);
- if (target_length >= sizeof(target_name))
- return (LWRES_R_FAILURE);
- strcpy(target_name, name); /* strcpy is safe */
-
- /*
- * Set up our request and render it to a buffer.
- */
- request.rdclass = rdclass;
- request.rdtype = rdtype;
- request.flags = flags;
- request.name = target_name;
- request.namelen = target_length;
- pkt.pktflags = 0;
- pkt.serial = serial;
- pkt.result = 0;
- pkt.recvlength = LWRES_RECVLENGTH;
-
- again:
- ret = lwres_grbnrequest_render(ctx, &request, &pkt, &b_out);
- if (ret != LWRES_R_SUCCESS)
- goto out;
-
- ret = lwres_context_sendrecv(ctx, b_out.base, b_out.length, buffer,
- LWRES_RECVLENGTH, &recvlen);
- if (ret != LWRES_R_SUCCESS)
- goto out;
-
- lwres_buffer_init(&b_in, buffer, recvlen);
- b_in.used = recvlen;
-
- /*
- * Parse the packet header.
- */
- ret = lwres_lwpacket_parseheader(&b_in, &pkt);
- if (ret != LWRES_R_SUCCESS)
- goto out;
-
- /*
- * Sanity check.
- */
- if (pkt.serial != serial)
- goto again;
- if (pkt.opcode != LWRES_OPCODE_GETRDATABYNAME)
- goto again;
-
- /*
- * Free what we've transmitted
- */
- CTXFREE(b_out.base, b_out.length);
- b_out.base = NULL;
- b_out.length = 0;
-
- if (pkt.result != LWRES_R_SUCCESS) {
- ret = pkt.result;
- goto out;
- }
-
- /*
- * Parse the response.
- */
- ret = lwres_grbnresponse_parse(ctx, &b_in, &pkt, &response);
- if (ret != LWRES_R_SUCCESS)
- goto out;
- response->base = buffer;
- response->baselen = LWRES_RECVLENGTH;
- buffer = NULL; /* don't free this below */
-
- *structp = response;
- return (LWRES_R_SUCCESS);
-
- out:
- if (b_out.base != NULL)
- CTXFREE(b_out.base, b_out.length);
- if (buffer != NULL)
- CTXFREE(buffer, LWRES_RECVLENGTH);
- if (response != NULL)
- lwres_grbnresponse_free(ctx, &response);
-
- return (ret);
-}
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