projects / apple / network_cmds.git / blame
| Commit | Line | Data |
|---|---|---|
| 89c4ed63 A |
1 | /* |
| 2 | * testcode/readhex.c - read hex data. | |
| 3 | * | |
| 4 | * Copyright (c) 2007, NLnet Labs. All rights reserved. | |
| 5 | * | |
| 6 | * This software is open source. | |
| 7 | * | |
| 8 | * Redistribution and use in source and binary forms, with or without | |
| 9 | * modification, are permitted provided that the following conditions | |
| 10 | * are met: | |
| 11 | * | |
| 12 | * Redistributions of source code must retain the above copyright notice, | |
| 13 | * this list of conditions and the following disclaimer. | |
| 14 | * | |
| 15 | * Redistributions in binary form must reproduce the above copyright notice, | |
| 16 | * this list of conditions and the following disclaimer in the documentation | |
| 17 | * and/or other materials provided with the distribution. | |
| 18 | * | |
| 19 | * Neither the name of the NLNET LABS nor the names of its contributors may | |
| 20 | * be used to endorse or promote products derived from this software without | |
| 21 | * specific prior written permission. | |
| 22 | * | |
| 23 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 24 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 25 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 26 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 27 | * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 28 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED | |
| 29 | * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 30 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 31 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 32 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
| 33 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 34 | * | |
| 35 | */ | |
| 36 | /** | |
| 37 | * \file | |
| 38 | * Declarations useful for the unit tests. | |
| 39 | */ | |
| 40 | #include "config.h" | |
| 41 | #include <ctype.h> | |
| 42 | #include "testcode/readhex.h" | |
| 43 | #include "util/log.h" | |
| 44 | #include "ldns/sbuffer.h" | |
| 45 | #include "ldns/parseutil.h" | |
| 46 | ||
| 47 | /** skip whitespace */ | |
| 48 | static void | |
| 49 | skip_whites(const char** p) | |
| 50 | { | |
| 51 | while(1) { | |
| 52 | while(isspace((unsigned char)**p)) | |
| 53 | (*p)++; | |
| 54 | if(**p == ';') { | |
| 55 | /* comment, skip until newline */ | |
| 56 | while(**p && **p != '\n') | |
| 57 | (*p)++; | |
| 58 | if(**p == '\n') | |
| 59 | (*p)++; | |
| 60 | } else return; | |
| 61 | } | |
| 62 | } | |
| 63 | ||
| 64 | /* takes a hex string and puts into buffer */ | |
| 65 | void hex_to_buf(sldns_buffer* pkt, const char* hex) | |
| 66 | { | |
| 67 | const char* p = hex; | |
| 68 | int val; | |
| 69 | sldns_buffer_clear(pkt); | |
| 70 | while(*p) { | |
| 71 | skip_whites(&p); | |
| 72 | if(sldns_buffer_position(pkt) == sldns_buffer_limit(pkt)) | |
| 73 | fatal_exit("hex_to_buf: buffer too small"); | |
| 74 | if(!isalnum((unsigned char)*p)) | |
| 75 | break; | |
| 76 | val = sldns_hexdigit_to_int(*p++) << 4; | |
| 77 | skip_whites(&p); | |
| 78 | log_assert(*p && isalnum((unsigned char)*p)); | |
| 79 | val |= sldns_hexdigit_to_int(*p++); | |
| 80 | sldns_buffer_write_u8(pkt, (uint8_t)val); | |
| 81 | skip_whites(&p); | |
| 82 | } | |
| 83 | sldns_buffer_flip(pkt); | |
| 84 | } | |
| 85 |