WebSVN – oidconverter – Blame – /trunk/c/oid.c

Rev	Author	Line No.	Line
6	daniel-mar	1	/*#################################################################################
		2	### ###
		3	### Object ID converter. Matthias Gaertner, 06/1999 ###
		4	### Converted to plain 'C' 07/2001 ###
		5	### ###
7	daniel-mar	6	### Enhanced version by Daniel Marschall, ViaThinkSoft 06-07/2011, 2022 ###
6	daniel-mar	7	### based on (or rather synchronized to) upstream version 1.3 ###
		8	### -- NEW in +viathinksoft2: 2.48 can also be encoded! ###
		9	### -- NEW in +viathinksoft2: UUIDs (128-bit) are now supported! ###
		10	### (requires GMPLib) ###
		11	### -- NEW in +viathinksoft3: Length can now have more than 1 byte ###
		12	### -- NEW in +viathinksoft4: No command line limitation anymore. ###
		13	### -- NEW in +viathinksoft5: Now also relative OIDs supported ###
		14	### -- NEW in +viathinksoft6: 0x80 paddings are now disallowed ###
		15	### -- NEW in +viathinksoft8: Removed Application/Context/Private "OID"s ###
		16	### -- NEW in +viathinksoft9: Also allow decoding C-notation with "-x" ###
		17	### -- AS WELL AS SEVERAL BUG FIXES ###
		18	### ###
		19	### To compile with gcc simply use: ###
		20	### gcc -O2 -o oid oid.c -lgmp -lm ###
		21	### ###
		22	### To compile using lcc-win32, use: ###
		23	### lcc oid.c & lcclnk oid.obj ###
		24	### ###
		25	### To compile using cl, use: ###
		26	### cl -DWIN32 -O1 oid.c (+ include gmp library) ###
		27	### ###
		28	### Freeware - do with it whatever you want. ###
		29	### Use at your own risk. No warranty of any kind. ###
		30	### ###
		31	#################################################################################*/
7	daniel-mar	32	/* $Version: 1.3+viathinksoft12$ */
2	daniel-mar	33
		34	// FUTURE
		35	// - Alles in Funktionen kapseln. Als Parameter: Array of integer (= dot notation) oder Array of byte (= hex notation)
		36
		37	// MINOR THINGS
		38	// - All stderr: Output new line at stdOut and close stdOut
		39	// - Make as much GMP as possible (e.g. nBinary counter, nBinaryWork etc)
13	daniel-mar	40	// - Think aout how to better define the return codes (error codes)
2	daniel-mar	41	// - irgendwie in funktionen kapseln (z.b. class-tag-parser usw)
13	daniel-mar	42	// - Look at all "TODO"s (especially things which are not clear)
2	daniel-mar	43
		44	// MINOR PROBLEMS IN CLI-INTERPRETATION:
		45	// - A wrong error message is shown when trying to encode "-0.0" or "x"
		46	// - 2.9a9 is not recognized as error
		47	// - "./oid R 2.999" is not interpretet correctly
		48	// - "./oid .2.999" will be interpreted as "0.2.999"
		49
		50	// NICE TO HAVE:
		51	// - makefile, manpage, linuxpackage
		52	// - better make functions instead of putting everything in main() with fprintf...
		53
		54	// NICE TO HAVE (INFINITY-IDEA - NOT IMPORTANT):
		55	// - Is it possible to detect integer overflows and therefore output errors?
		56
		57
		58	// -------------------------------------------------------
		59
		60	// Allows OIDs which are bigger than "long"
		61	// Compile with "gcc oid.c -lgmp -lm"
		62	#define is_gmp
		63
		64	#include <stdio.h>
		65	#include <string.h>
		66	#include <stdlib.h>
		67
		68	#ifdef is_gmp
		69	#include <gmp.h>
		70	#endif
		71
		72	#include <stdbool.h>
		73
		74	#ifndef __STRNICMP_LOCAL
		75	#ifdef WIN32
		76	#define __STRNICMP_LOCAL strnicmp
		77	#else
		78	#define __STRNICMP_LOCAL strncasecmp
		79	#endif
		80	#endif
		81
		82	// char abCommandLine[4096];
		83	const unsigned int CLI_INITIAL_SIZE = 1024;
		84	const unsigned int CLI_EXPANSION_SIZE = 1024;
		85	unsigned int cli_size;
		86	char * abCommandLine;
		87
		88	// unsigned char abBinary[128];
		89	const unsigned int ABB_INITIAL_SIZE = 1024;
		90	const unsigned int ABB_EXPANSION_SIZE = 1024;
		91	unsigned int abb_size;
		92	unsigned char * abBinary;
		93
		94	unsigned int nBinary = 0;
		95
		96	const int MODE_DOT_TO_HEX = 0;
		97	const int MODE_HEX_TO_DOT = 1;
		98
		99	#ifdef is_gmp
		100	static void MakeBase128(mpz_t l, int first) {
		101	if (mpz_cmp_si(l, 127) > 0) {
		102	mpz_t l2;
		103	mpz_init(l2);
		104	mpz_div_ui(l2, l, 128);
		105	MakeBase128(l2, 0);
		106	}
		107	mpz_mod_ui(l, l, 128);
		108
		109	if (nBinary+1 >= abb_size) {
		110	abb_size += ABB_EXPANSION_SIZE;
		111	abBinary = (unsigned char*) realloc(abBinary, abb_size);
		112	if (abBinary == NULL) {
		113	fprintf(stderr, "Memory reallocation failure!\n");
		114	exit(EXIT_FAILURE);
		115	}
		116	}
		117
		118	if (first) {
		119	abBinary[nBinary++] = mpz_get_ui(l);
		120	} else {
		121	abBinary[nBinary++] = 0x80 \| mpz_get_ui(l);
		122	}
		123	}
		124	#else
		125	static void MakeBase128(unsigned long l, int first) {
		126	if (l > 127) {
		127	MakeBase128(l / 128, 0);
		128	}
		129	l %= 128;
		130
		131	if (nBinary+1 >= abb_size) {
		132	abb_size += ABB_EXPANSION_SIZE;
		133	abBinary = (unsigned char*) realloc(abBinary, abb_size);
		134	if (abBinary == NULL) {
		135	fprintf(stderr, "Memory reallocation failure!\n");
		136	exit(EXIT_FAILURE);
		137	}
		138	}
		139
		140	if (first) {
		141	abBinary[nBinary++] = (unsigned char)l;
		142	} else {
		143	abBinary[nBinary++] = 0x80 \| (unsigned char)l;
		144	}
		145	}
		146	#endif
		147
		148	int main(int argc, char **argv) {
		149	cli_size = CLI_INITIAL_SIZE;
		150	abCommandLine = (char) malloc(cli_size sizeof(char*));
		151	if (abCommandLine == NULL) {
		152	fprintf(stderr, "Memory allocation failure!\n");
		153	return EXIT_FAILURE;
		154	}
		155
		156	abb_size = ABB_INITIAL_SIZE;
		157	abBinary = (unsigned char) malloc(abb_size sizeof(unsigned char*));
		158	if (abBinary == NULL) {
		159	fprintf(stderr, "Memory allocation failure!\n");
		160	return EXIT_FAILURE;
		161	}
		162
		163
		164	char *fOutName = NULL;
		165	char *fInName = NULL;
		166	FILE *fOut = NULL;
		167
		168	int n = 1;
		169	int nMode = MODE_DOT_TO_HEX;
6	daniel-mar	170	int nCHex = 0;
2	daniel-mar	171	int nAfterOption = 0;
		172	bool isRelative = false;
		173
		174	if (argc == 1) {
		175	fprintf(stderr,
7	daniel-mar	176	"OID encoder/decoder 1.3+viathinksoft12 - Matthias Gaertner 1999/2001, Daniel Marschall 2011/2012 - Freeware\n"
2	daniel-mar	177	#ifdef is_gmp
		178	"GMP Edition (unlimited arc sizes)\n"
		179	#else
		180	"%d-bit Edition (arc sizes are limited!)\n"
		181	#endif
		182	"\nUsage:\n"
6	daniel-mar	183	" OID [-c\|-C] [-r] [-o<outfile>] {-i<infile>\|2.999.1}\n"
2	daniel-mar	184	" converts dotted form to ASCII HEX DER output.\n"
6	daniel-mar	185	" -c: Output as C-syntax (array).\n"
		186	" -C: Output as C-syntax (string).\n"
2	daniel-mar	187	" -r: Handle the OID as relative and not absolute.\n"
		188	" OID -x [-o<outfile>] {-i<infile>\|hex-digits}\n"
		189	" decodes ASCII HEX DER and gives dotted form.\n" , sizeof(unsigned long) * 8);
		190	return 1;
		191	}
		192
		193	while (n < argc) {
		194	if (!nAfterOption && argv[n][0] == '-') {
		195	if (argv[n][1] == 'x') {
		196	nMode = MODE_HEX_TO_DOT;
		197	if (argv[n][2] != '\0') {
		198	argv[n--] += 2;
		199	nAfterOption = 1;
		200	}
6	daniel-mar	201	} else if (argv[n][1] == 'c') {
		202	nMode = MODE_DOT_TO_HEX;
		203	nCHex = 1;
		204
		205	if (argv[n][2] != '\0') {
		206	argv[n--] += 2;
		207	nAfterOption = 1;
		208	}
2	daniel-mar	209	} else if (argv[n][1] == 'C') {
		210	nMode = MODE_DOT_TO_HEX;
6	daniel-mar	211	nCHex = 2;
2	daniel-mar	212
		213	if (argv[n][2] != '\0') {
		214	argv[n--] += 2;
		215	nAfterOption = 1;
		216	}
		217	} else if (argv[n][1] == 'r') {
		218	nMode = MODE_DOT_TO_HEX;
		219	isRelative = true;
		220
		221	if (argv[n][2] != '\0') {
		222	argv[n--] += 2;
		223	nAfterOption = 1;
		224	}
		225	} else if (argv[n][1] == 'o') {
		226	if (argv[n][2] != '\0') {
		227	fOutName = &argv[n][2];
		228	} else if (n < argc-1) {
		229	fOutName = argv[++n];
		230	} else {
		231	fprintf(stderr, "Incomplete command line.\n");
		232	return EXIT_FAILURE;
		233	}
		234	} else if (argv[n][1] == 'i') {
		235	if (argv[n][2] != '\0') {
		236	fInName = &argv[n][2];
		237	} else if (n < argc-1) {
		238	fInName = argv[++n];
		239	} else {
		240	fprintf(stderr, "Incomplete command line.\n");
		241	return EXIT_FAILURE;
		242	}
		243	}
		244	} else {
13	daniel-mar	245	if (fInName != NULL) { // TODO: (Not clear): What does this? Is this also important for fOutName?
2	daniel-mar	246	break;
		247	}
		248
		249	nAfterOption = 1;
		250	if (strlen(argv[n]) + strlen(abCommandLine) >= sizeof(abCommandLine)-2) { // TODO: warum -2 ?
		251	// fprintf(stderr, "Command line too long.\n");
		252	// return 2;
		253
		254	cli_size += CLI_EXPANSION_SIZE + strlen(argv[n]) + 1; // 1 = "."
		255	abCommandLine = (char*) realloc(abCommandLine, cli_size);
		256	if (abCommandLine == NULL) {
		257	fprintf(stderr, "Memory reallocation failure!\n");
		258	return EXIT_FAILURE;
		259	}
		260	}
13	daniel-mar	261	strcat(abCommandLine, argv[n]); // (automatically inserts an "\0")
2	daniel-mar	262	if (n != argc - 1 && nMode != MODE_HEX_TO_DOT) {
		263	strcat(abCommandLine, ".");
		264	}
		265	}
		266	n++;
		267	}
		268
		269	if (fInName != NULL && nMode == MODE_HEX_TO_DOT) {
		270	FILE *fIn = fopen(fInName, "rb");
		271	size_t nRead = 0;
		272	if (fIn == NULL) {
		273	fprintf(stderr, "Unable to open input file %s.\n", fInName);
		274	return 11;
		275	}
		276	nRead = fread(abCommandLine, 1, sizeof(abCommandLine), fIn);
		277	abCommandLine[nRead] = '\0';
		278	fclose(fIn);
		279	} else if (fInName != NULL && nMode == MODE_DOT_TO_HEX) {
		280	FILE *fIn = fopen(fInName, "rt");
		281	if (fIn == NULL) {
		282	fprintf(stderr, "Unable to open input file %s.\n", fInName);
		283	return 11;
		284	}
		285	fgets(abCommandLine, sizeof(abCommandLine), fIn);
		286	fclose(fIn);
		287	}
		288
		289	while (nMode == MODE_HEX_TO_DOT) { /* better if */
		290	/* hex->dotted */
		291	/printf("Hex-In: %s\n", abCommandLine);/
		292
		293	char *p = abCommandLine;
		294	char *q = p;
		295
		296	unsigned char *pb = NULL;
		297	unsigned int nn = 0;
		298	#ifdef is_gmp
		299	mpz_t ll;
		300	mpz_init(ll);
		301	#else
		302	unsigned long ll = 0;
		303	#endif
		304	bool fOK = false;
		305	int fSub = 0; // Subtract value from next number output. Used when encoding {2 48} and up
		306
		307	while (*p) {
10	daniel-mar	308	if (p != '.' && p != ':' && p != '\r' && p != '\n' && p != '\x20' && p != '\t') {
2	daniel-mar	309	q++ = p;
		310	}
		311	p++;
		312	}
		313	*q = '\0';
		314
		315	if (strlen(abCommandLine) % 2 != 0) {
		316	fprintf(stderr, "Encoded OID must have even number of hex digits!\n");
		317	return 2;
		318	}
		319
		320	if (strlen(abCommandLine) < 3) {
		321	fprintf(stderr, "Encoded OID must have at least three bytes!\n");
		322	return 2;
		323	}
		324
		325	nBinary = 0;
		326	p = abCommandLine;
		327
		328	while (*p) {
		329	unsigned char b;
		330
7	daniel-mar	331	// This allows also C-hexstring-notation
2	daniel-mar	332	if ((p[0] == '\\') && (p[1] == 'x')) {
		333	p += 2;
		334	continue;
		335	}
		336
7	daniel-mar	337	// This allows also C-array-notation
		338	if ((p[0] == '0') && (p[1] == 'x')) {
		339	p += 2;
		340	continue;
		341	}
		342	if ((p[0] == ',') \|\| (p[0] == '{') \|\| (p[0] == '}') \|\| (p[0] == ' ')) {
		343	p++;
		344	continue;
		345	}
		346
2	daniel-mar	347	// Interpret upper nibble
		348	if (p[0] >= 'A' && p[0] <= 'F') {
		349	b = (p[0] - 'A' + 10) * 16;
		350	} else if (p[0] >= 'a' && p[0] <= 'f') {
		351	b = (p[0] - 'a' + 10) * 16;
		352	} else if (p[0] >= '0' && p[0] <= '9') {
		353	b = (p[0] - '0') * 16;
		354	} else {
		355	fprintf(stderr, "Must have hex digits only!\n");
		356	return 2;
		357	}
		358
		359	// Interpret lower nibble
		360	if (p[1] >= 'A' && p[1] <= 'F') {
		361	b += (p[1] - 'A' + 10);
		362	} else if (p[1] >= 'a' && p[1] <= 'f') {
		363	b += (p[1] - 'a' + 10);
		364	} else if (p[1] >= '0' && p[1] <= '9') {
		365	b += (p[1] - '0');
		366	} else {
		367	fprintf(stderr, "Must have hex digits only!\n");
		368	return 2;
		369	}
		370
		371	if (nBinary+1 >= abb_size) {
		372	abb_size += ABB_EXPANSION_SIZE;
		373	abBinary = (unsigned char*) realloc(abBinary, abb_size);
		374	if (abBinary == NULL) {
		375	fprintf(stderr, "Memory reallocation failure!\n");
		376	return EXIT_FAILURE;
		377	}
		378	}
		379
		380	abBinary[nBinary++] = b;
		381	p += 2;
		382	}
		383
		384	/printf("Hex-In: %s\n", abCommandLine);/
		385
		386	if (fOutName != NULL) {
		387	fOut = fopen(fOutName, "wt");
		388	if (fOut == NULL) {
		389	fprintf(stderr, "Unable to open output file %s\n", fOutName);
		390	return 33;
		391	}
		392	} else {
		393	fOut = stdout;
		394	}
		395
		396	pb = abBinary;
		397	nn = 0;
		398	#ifdef is_gmp
		399	mpz_init(ll);
		400	#else
		401	ll = 0;
		402	#endif
		403	fOK = false;
		404	fSub = 0;
		405
		406	// 0 = Universal Class Identifier Tag (can be more than 1 byte, but not in our case)
		407	// 1 = Length part (may have more than 1 byte!)
		408	// 2 = First two arc encoding
		409	// 3 = Encoding of arc three and higher
		410	unsigned char part = 0;
		411
		412	unsigned char lengthbyte_count = 0;
		413	unsigned char lengthbyte_pos = 0;
		414	bool lengthfinished = false;
		415
		416	bool arcBeginning = true;
		417	bool firstWrittenArc = true;
		418
		419	while (nn < nBinary) {
		420	if (part == 0) { // Class Tag
		421
		422	// Leading octet
		423	// Bit 7 / Bit 6 = Universal (00), Application (01), Context (10), Private(11)
		424	// Bit 5 = Primitive (0), Constructed (1)
		425	// Bit 4..0 = 00000 .. 11110 => Tag 0..30, 11111 for Tag > 30 (following bytes with the highest bit as "more" bit)
		426	// --> We don't need to respect 11111 (class-tag encodes in more than 1 octet)
		427	// as we terminate when the tag is not of type OID or RELATEIVE-OID
		428	// See page 396 of "ASN.1 - Communication between Heterogeneous Systems" by Olivier Dubuisson.
		429
		430	// Class: 8. - 7. bit
		431	// 0 (00) = Universal
		432	// 1 (01) = Application
		433	// 2 (10) = Context
		434	// 3 (11) = Private
		435	unsigned char cl = ((*pb & 0xC0) >> 6) & 0x03;
		436	if (cl != 0) {
		437	fprintf(stderr, "\nError at type: The OID tags are only defined as UNIVERSAL class tags.\n");
		438	fprintf(fOut, "\n");
		439	return 6;
		440	}
		441
		442	// Primitive/Constructed: 6. bit
		443	// 0 = Primitive
		444	// 1 = Constructed
		445	unsigned char pc = *pb & 0x20;
		446	if (pc != 0) {
		447	fprintf(stderr, "\nError at type: OIDs must be primitive, not constructed.\n");
		448	fprintf(fOut, "\n");
		449	return 6;
		450	}
		451
		452	// Tag number: 5. - 1. bit
		453	unsigned char tag = *pb & 0x1F;
		454	if (tag == 0x0D) {
		455	isRelative = true;
		456	} else if (tag == 0x06) {
		457	isRelative = false;
		458	} else {
		459	fprintf(stderr, "\nError at type: The tag number is neither an absolute OID (0x06) nor a relative OID (0x0D).\n");
		460	fprintf(fOut, "\n");
		461	return 6;
		462	}
		463
		464	// Output
		465	if (isRelative) {
		466	fprintf(fOut, "RELATIVE");
		467	} else {
		468	fprintf(fOut, "ABSOLUTE");
		469	}
		470
		471	fprintf(fOut, " OID");
		472	part++;
		473	} else if (part == 1) { // Length
		474
		475	// Find out the length and save it into ll
		476
		477	// [length] is encoded as follows:
		478	// 0x00 .. 0x7F = The actual length is in this byte, followed by [data].
		479	// 0x80 + n = The length of [data] is spread over the following 'n' bytes. (0 < n < 0x7F)
		480	// 0x80 = "indefinite length" (only constructed form) -- Invalid
		481	// 0xFF = Reserved for further implementations -- Invalid
		482	// See page 396 of "ASN.1 - Communication between Heterogeneous Systems" by Olivier Dubuisson.
		483
		484	if (nn == 1) { // The first length byte
		485	lengthbyte_pos = 0;
		486	if ((*pb & 0x80) != 0) {
		487	// 0x80 + n => The length is spread over the following 'n' bytes
		488	lengthfinished = false;
		489	lengthbyte_count = *pb & 0x7F;
		490	if (lengthbyte_count == 0x00) {
		491	fprintf(stderr, "\nLength value 0x80 is invalid (\"indefinite length\") for primitive types.\n");
		492	fprintf(fOut, "\n");
		493	return 7;
		494	} else if (lengthbyte_count == 0x7F) {
		495	fprintf(stderr, "\nLength value 0xFF is reserved for further extensions.\n");
		496	fprintf(fOut, "\n");
		497	return 7;
		498	}
		499	fOK = false;
		500	} else {
		501	// 0x01 .. 0x7F => The actual length
		502
		503	if (*pb == 0x00) {
		504	fprintf(stderr, "\nLength value 0x00 is invalid for an OID.\n");
		505	fprintf(fOut, "\n");
		506	return 7;
		507	}
		508
		509	#ifdef is_gmp
		510	mpz_set_ui(ll, *pb);
		511	#else
		512	ll = *pb;
		513	#endif
		514	lengthfinished = true;
		515	lengthbyte_count = 0;
		516	fOK = true;
		517	}
		518	} else {
		519	if (lengthbyte_count > lengthbyte_pos) {
		520	#ifdef is_gmp
		521	mpz_mul_ui(ll, ll, 0x100);
		522	mpz_add_ui(ll, ll, *pb);
		523	#else
		524	ll *= 0x100;
		525	ll += *pb;
		526	#endif
		527	lengthbyte_pos++;
		528	}
		529
		530	if (lengthbyte_count == lengthbyte_pos) {
		531	lengthfinished = true;
		532	fOK = true;
		533	}
		534	}
		535
		536	if (lengthfinished) { // The length is now in ll
		537	#ifdef is_gmp
		538	if (mpz_cmp_ui(ll, nBinary - 2 - lengthbyte_count) != 0) {
		539	fprintf(fOut, "\n");
		540	if (fOut != stdout) {
		541	fclose(fOut);
		542	}
		543	fprintf(stderr, "\nInvalid length (%d entered, but %s expected)\n", nBinary - 2, mpz_get_str(NULL, 10, ll));
		544	return 3;
		545	}
		546	mpz_set_ui(ll, 0); // reset for later usage
		547	#else
		548	if (ll != nBinary - 2 - lengthbyte_count) {
		549	fprintf(fOut, "\n");
		550	if (fOut != stdout) {
		551	fclose(fOut);
		552	}
		553	fprintf(stderr, "\nInvalid length (%d entered, but %d expected)\n", nBinary - 2, ll);
		554	return 3;
		555	}
		556	ll = 0; // reset for later usage
		557	#endif
		558	fOK = true;
		559	part++;
		560	if (isRelative) part++; // Goto step 3!
		561	}
		562	} else if (part == 2) { // First two arcs
		563	int first = *pb / 40;
		564	int second = *pb % 40;
		565	if (first > 2) {
		566	first = 2;
		567	fprintf(fOut, " %d", first);
		568	firstWrittenArc = false;
		569	arcBeginning = true;
		570
		571	if ((*pb & 0x80) != 0) {
		572	// 2.48 and up => 2+ octets
		573	// Output in "part 3"
		574
		575	if (arcBeginning && (*pb == 0x80)) {
		576	fprintf(fOut, "\n");
		577	if (fOut != stdout) {
		578	fclose(fOut);
		579	}
		580	fprintf(stderr, "\nEncoding error. Illegal 0x80 paddings. (See Rec. ITU-T X.690, clause 8.19.2)\n");
		581	return 4;
		582	} else {
		583	arcBeginning = false;
		584	}
		585
		586	#ifdef is_gmp
		587	mpz_add_ui(ll, ll, (*pb & 0x7F));
		588	#else
		589	ll += (*pb & 0x7F);
		590	#endif
		591	fSub = 80;
		592	fOK = false;
		593	} else {
		594	// 2.0 till 2.47 => 1 octet
		595	second = *pb - 80;
		596	fprintf(fOut, ".%d", second);
		597	arcBeginning = true;
		598	fOK = true;
		599	#ifdef is_gmp
		600	mpz_set_ui(ll, 0);
		601	#else
		602	ll = 0;
		603	#endif
		604	}
		605	} else {
		606	// 0.0 till 0.37 => 1 octet
		607	// 1.0 till 1.37 => 1 octet
		608	fprintf(fOut, " %d.%d", first, second);
		609	firstWrittenArc = false;
		610	arcBeginning = true;
		611	fOK = true;
		612	#ifdef is_gmp
		613	mpz_set_ui(ll, 0);
		614	#else
		615	ll = 0;
		616	#endif
		617	}
		618	part++;
		619	} else if (part == 3) { // Arc three and higher
		620	if ((*pb & 0x80) != 0) {
		621	if (arcBeginning && (*pb == 0x80)) {
		622	fprintf(fOut, "\n");
		623	if (fOut != stdout) {
		624	fclose(fOut);
		625	}
		626	fprintf(stderr, "\nEncoding error. Illegal 0x80 paddings. (See Rec. ITU-T X.690, clause 8.19.2)\n");
		627	return 4;
		628	} else {
		629	arcBeginning = false;
		630	}
		631
		632	#ifdef is_gmp
		633	mpz_mul_ui(ll, ll, 0x80);
		634	mpz_add_ui(ll, ll, (*pb & 0x7F));
		635	#else
		636	ll *= 0x80;
		637	ll += (*pb & 0x7F);
		638	#endif
		639	fOK = false;
		640	} else {
		641	fOK = true;
		642	#ifdef is_gmp
		643	mpz_mul_ui(ll, ll, 0x80);
		644	mpz_add_ui(ll, ll, *pb);
		645	mpz_sub_ui(ll, ll, fSub);
		646	if (firstWrittenArc) {
		647	fprintf(fOut, " %s", mpz_get_str(NULL, 10, ll));
		648	firstWrittenArc = false;
		649	} else {
		650	fprintf(fOut, ".%s", mpz_get_str(NULL, 10, ll));
		651	}
		652	// Happens only if 0x80 paddings are allowed
		653	// fOK = mpz_cmp_ui(ll, 0) >= 0;
		654	mpz_set_ui(ll, 0);
		655	#else
		656	ll *= 0x80;
		657	ll += *pb;
		658	ll -= fSub;
		659	if (firstWrittenArc) {
		660	fprintf(fOut, " %lu", ll);
		661	firstWrittenArc = false;
		662	} else {
		663	fprintf(fOut, ".%lu", ll);
		664	}
		665	// Happens only if 0x80 paddings are allowed
		666	// fOK = ll >= 0;
		667	ll = 0;
		668	#endif
		669	fSub = 0;
		670	arcBeginning = true;
		671	}
		672	}
		673
		674	pb++;
		675	nn++;
		676	}
		677
		678	if (!fOK) {
		679	fprintf(fOut, "\n");
		680	if (fOut != stdout) {
		681	fclose(fOut);
		682	}
		683	fprintf(stderr, "\nEncoding error. The OID is not constructed properly.\n");
		684	return 4;
		685	} else {
		686	fprintf(fOut, "\n");
		687	}
		688
		689	if (fOut != stdout) {
		690	fclose(fOut);
		691	}
		692	break;
		693	};
		694
		695	while (nMode == MODE_DOT_TO_HEX) { /* better if */
		696	/* dotted->hex */
		697	/* printf("OID %s\n", abCommandLine); */
		698
		699	char *p = abCommandLine;
		700	unsigned char cl = 0x00;
		701	char *q = NULL;
		702	int nPieces = 1;
		703	int n = 0;
		704	unsigned char b = 0;
		705	unsigned int nn = 0;
		706	#ifdef is_gmp
		707	mpz_t l;
		708	#else
		709	unsigned long l = 0;
		710	#endif
		711	bool isjoint = false;
		712
		713	// Alternative call: ./oid RELATIVE.2.999
		714	if (__STRNICMP_LOCAL(p, "ABSOLUTE.", 9) == 0) {
		715	isRelative = false;
		716	p+=9;
		717	} else if (__STRNICMP_LOCAL(p, "RELATIVE.", 9) == 0) {
		718	isRelative = true;
		719	p+=9;
		720	} else {
		721	// use the CLI option
		722	// isRelative = false;
		723	}
		724
		725	cl = 0x00; // Class. Always UNIVERSAL (00)
		726
		727	// Tag for Universal Class
		728	if (isRelative) {
		729	cl \|= 0x0D;
		730	} else {
		731	cl \|= 0x06;
		732	}
		733
		734	/* if (__STRNICMP_LOCAL(p, "OID.", 4) == 0) {
		735	p+=4;
		736	} */
		737
		738	q = p;
		739	nPieces = 1;
		740	while (*p) {
		741	if (*p == '.') {
		742	nPieces++;
		743	}
		744	p++;
		745	}
		746
		747	n = 0;
		748	b = 0;
		749	p = q;
		750	while (n < nPieces) {
		751	q = p;
		752	while (*p) {
		753	if (*p == '.') {
		754	break;
		755	}
		756	p++;
		757	}
		758
		759	#ifdef is_gmp
		760	mpz_init(l);
		761	#else
		762	l = 0;
		763	#endif
		764	if (*p == '.') {
		765	*p = 0;
		766	#ifdef is_gmp
		767	mpz_set_str(l, q, 10);
		768	#else
		769	l = (unsigned long) atoi(q);
		770	#endif
		771	q = p+1;
		772	p = q;
		773	} else {
		774	#ifdef is_gmp
		775	mpz_set_str(l, q, 10);
		776	#else
		777	l = (unsigned long) atoi(q);
		778	#endif
		779	q = p;
		780	}
		781
		782	/* Digit is in l. */
		783	if ((!isRelative) && (n == 0)) {
		784	#ifdef is_gmp
		785	if (mpz_cmp_ui(l, 2) > 0) {
		786	#else
		787	if (l > 2) {
		788	#endif
		789	fprintf(stderr, "\nEncoding error. The top arc is limited to 0, 1 and 2.\n");
		790	return 5;
		791	}
		792	#ifdef is_gmp
		793	b += 40 * mpz_get_ui(l);
		794	isjoint = mpz_cmp_ui(l, 2) == 0;
		795	#else
		796	b = 40 * ((unsigned char)l);
		797	isjoint = l == 2;
		798	#endif
		799	} else if ((!isRelative) && (n == 1)) {
		800	#ifdef is_gmp
		801	if ((!isjoint) && (mpz_cmp_ui(l, 39) > 0)) {
		802	#else
		803	if ((l > 39) && (!isjoint)) {
		804	#endif
		805	fprintf(stderr, "\nEncoding error. The second arc is limited to 0..39 for root arcs 0 and 1.\n");
		806	return 5;
		807	}
		808
		809	#ifdef is_gmp
		810	if (mpz_cmp_ui(l, 47) > 0) {
		811	mpz_add_ui(l, l, 80);
		812	MakeBase128(l, 1);
		813	} else {
		814	b += mpz_get_ui(l);
		815	if (nBinary+1 >= abb_size) {
		816	abb_size += ABB_EXPANSION_SIZE;
		817	abBinary = (unsigned char*) realloc(abBinary, abb_size);
		818	if (abBinary == NULL) {
		819	fprintf(stderr, "Memory reallocation failure!\n");
		820	return EXIT_FAILURE;
		821	}
		822	}
		823	abBinary[nBinary++] = b;
		824	}
		825	#else
		826	if (l > 47) {
		827	l += 80;
		828	MakeBase128(l, 1);
		829	} else {
		830	b += ((unsigned char) l);
		831	if (nBinary+1 >= abb_size) {
		832	abb_size += ABB_EXPANSION_SIZE;
		833	abBinary = (unsigned char*) realloc(abBinary, abb_size);
		834	if (abBinary == NULL) {
		835	fprintf(stderr, "Memory reallocation failure!\n");
		836	return EXIT_FAILURE;
		837	}
		838	}
		839	abBinary[nBinary++] = b;
		840	}
		841	#endif
		842	} else {
		843	MakeBase128(l, 1);
		844	}
		845	n++;
		846	}
		847
		848	if ((!isRelative) && (n < 2)) {
		849	fprintf(stderr, "\nEncoding error. The minimum depth of an encodeable absolute OID is 2. (e.g. 2.999)\n");
		850	return 5;
		851	}
		852
		853	if (fOutName != NULL) {
		854	fOut = fopen(fOutName, "wt");
		855	if (fOut == NULL) {
		856	fprintf(stderr, "Unable to open output file %s\n", fOutName);
		857	return 33;
		858	}
		859	} else {
		860	fOut = stdout;
		861	}
		862
		863	// Write class-tag
6	daniel-mar	864	if (nCHex == 1) {
		865	fprintf(fOut, "{ 0x%02X, ", cl);
		866	} else if (nCHex == 2) {
2	daniel-mar	867	fprintf(fOut, "\"\\x%02X", cl);
		868	} else {
		869	fprintf(fOut, "%02X ", cl);
		870	}
		871
		872	// Write length
		873	if (nBinary <= 0x7F) {
6	daniel-mar	874	if (nCHex == 1) {
		875	fprintf(fOut, "0x%02X, ", nBinary);
		876	} else if (nCHex == 2) {
2	daniel-mar	877	fprintf(fOut, "\\x%02X", nBinary);
		878	} else {
		879	fprintf(fOut, "%02X ", nBinary);
		880	}
		881	} else {
		882	unsigned int nBinaryWork;
		883	unsigned int lengthCount = 0;
		884
		885	nBinaryWork = nBinary;
		886	do {
		887	lengthCount++;
		888	nBinaryWork /= 0x100;
		889	} while (nBinaryWork > 0);
		890
		891	if (lengthCount >= 0x7F) {
		892	fprintf(stderr, "\nThe length cannot be encoded.\n");
		893	return 8;
		894	}
		895
6	daniel-mar	896	if (nCHex == 1) {
		897	fprintf(fOut, "0x%02X, ", 0x80 + lengthCount);
		898	} else if (nCHex == 2) {
2	daniel-mar	899	fprintf(fOut, "\\x%02X", 0x80 + lengthCount);
		900	} else {
		901	fprintf(fOut, "%02X ", 0x80 + lengthCount);
		902	}
		903
		904	nBinaryWork = nBinary;
		905	do {
6	daniel-mar	906	if (nCHex == 1) {
		907	fprintf(fOut, "0x%02X, ", nBinaryWork & 0xFF);
		908	} else if (nCHex == 2) {
2	daniel-mar	909	fprintf(fOut, "\\x%02X", nBinaryWork & 0xFF);
		910	} else {
		911	fprintf(fOut, "%02X ", nBinaryWork & 0xFF);
		912	}
		913	nBinaryWork /= 0x100;
		914	} while (nBinaryWork > 0);
		915	}
		916
		917	nn = 0;
		918	while (nn < nBinary) {
		919	unsigned char b = abBinary[nn++];
		920	if (nn == nBinary) {
6	daniel-mar	921	if (nCHex == 1) {
		922	fprintf(fOut, "0x%02X }\n", b);
		923	} else if (nCHex == 2) {
2	daniel-mar	924	fprintf(fOut, "\\x%02X\"\n", b);
		925	} else {
		926	fprintf(fOut, "%02X\n", b);
		927	}
		928	} else {
6	daniel-mar	929	if (nCHex == 1) {
		930	fprintf(fOut, "0x%02X, ", b);
		931	} else if (nCHex == 2) {
2	daniel-mar	932	fprintf(fOut, "\\x%02X", b);
		933	} else {
		934	fprintf(fOut, "%02X ", b);
		935	}
		936	}
		937	}
		938	if (fOut != stdout) {
		939	fclose(fOut);
		940	}
		941	break;
		942	}
		943
		944	free(abCommandLine);
		945	free(abBinary);
		946
		947	return 0;
		948	}

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oidconverter/trunk/c/oid.c – Rev 13