1 // SPDX-License-Identifier: GPL-2.0-only
25 #define __ALIGN_KERNEL(x, a)		__ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
40 	if      (n >= '0' && n <= '9') return n - '0';  in nybble()
41 	else if (n >= 'A' && n <= 'F') return n - ('A' - 10);  in nybble()
42 	else if (n >= 'a' && n <= 'f') return n - ('a' - 10);  in nybble()
53 static int process_ihex(uint8_t *data, ssize_t size);
54 static void file_record(struct ihex_binrec *record);
66 	fprintf(stderr, "       -w: wide records (16-bit length)\n");  in usage()
67 	fprintf(stderr, "       -s: sort records by address\n");  in usage()
68 	fprintf(stderr, "       -j: include records for CS:IP/EIP address\n");  in usage()
79 	while ((opt = getopt(argc, argv, "wsj")) != -1) {  in main()
98 	if (!strcmp(argv[optind], "-"))  in main()
102 	if (infd == -1) {  in main()
117 	if (!strcmp(argv[optind+1], "-"))  in main()
121 	if (outfd == -1) {  in main()
132 static int process_ihex(uint8_t *data, ssize_t size)  in process_ihex()  argument
134 	struct ihex_binrec *record;  in process_ihex()  local
145 	/* search for the start of record character */  in process_ihex()
146 	while (i < size) {  in process_ihex()
151 	/* Minimum record length would be about 10 characters */  in process_ihex()
152 	if (i + 10 > size) {  in process_ihex()
153 		fprintf(stderr, "Can't find valid record at line %d\n", line);  in process_ihex()
154 		return -EINVAL;  in process_ihex()
162 	record_size = ALIGN(sizeof(*record) + len, 4);  in process_ihex()
163 	record = malloc(record_size);  in process_ihex()
164 	if (!record) {  in process_ihex()
166 		return -ENOMEM;  in process_ihex()
168 	memset(record, 0, record_size);  in process_ihex()
169 	record->len = len;  in process_ihex()
172 	if (i + 8 + (record->len * 2) > size) {  in process_ihex()
173 		fprintf(stderr, "Not enough data to read complete record at line %d\n",  in process_ihex()
175 		return -EINVAL;  in process_ihex()
178 	record->addr  = hex(data + i, &crc) << 8; i += 2;  in process_ihex()
179 	record->addr |= hex(data + i, &crc); i += 2;  in process_ihex()
182 	for (j = 0; j < record->len; j++, i += 2)  in process_ihex()
183 		record->data[j] = hex(data + i, &crc);  in process_ihex()
189 			line, crcbyte, (unsigned char)(crcbyte-crc));  in process_ihex()
190 		return -EINVAL;  in process_ihex()
193 	/* Done reading the record */  in process_ihex()
196 		/* old style EOF record? */  in process_ihex()
197 		if (!record->len)  in process_ihex()
200 		record->addr += offset;  in process_ihex()
201 		file_record(record);  in process_ihex()
204 	case 1: /* End-Of-File Record */  in process_ihex()
205 		if (record->addr || record->len) {  in process_ihex()
206 			fprintf(stderr, "Bad EOF record (type 01) format at line %d",  in process_ihex()
208 			return -EINVAL;  in process_ihex()
212 	case 2: /* Extended Segment Address Record (HEX86) */  in process_ihex()
213 	case 4: /* Extended Linear Address Record (HEX386) */  in process_ihex()
214 		if (record->addr || record->len != 2) {  in process_ihex()
215 			fprintf(stderr, "Bad HEX86/HEX386 record (type %02X) at line %d\n",  in process_ihex()
217 			return -EINVAL;  in process_ihex()
222 		offset = record->data[0] << 8 | record->data[1];  in process_ihex()
226 	case 3: /* Start Segment Address Record */  in process_ihex()
227 	case 5: /* Start Linear Address Record */  in process_ihex()
228 		if (record->addr || record->len != 4) {  in process_ihex()
229 			fprintf(stderr, "Bad Start Address record (type %02X) at line %d\n",  in process_ihex()
231 			return -EINVAL;  in process_ihex()
234 		memcpy(&data32, &record->data[0], sizeof(data32));  in process_ihex()
236 		memcpy(&record->data[0], &data32, sizeof(data32));  in process_ihex()
239 		 * starts. If requested output this as a record. */  in process_ihex()
241 			file_record(record);  in process_ihex()
245 		fprintf(stderr, "Unknown record (type %02X)\n", type);  in process_ihex()
246 		return -EINVAL;  in process_ihex()
254 static void file_record(struct ihex_binrec *record)  in file_record()  argument
258 	while ((*p) && (!sort_records || (*p)->addr < record->addr))  in file_record()
259 		p = &((*p)->next);  in file_record()
261 	record->next = *p;  in file_record()
262 	*p = record;  in file_record()
267 	return p->len + sizeof(p->addr) + sizeof(p->len);  in ihex_binrec_size()
278 		p->addr = htonl(p->addr);  in output_records()
279 		p->len = htons(p->len);  in output_records()
280 		if (write(outfd, &p->addr, writelen) != writelen)  in output_records()
282 		p = p->next;  in output_records()
284 	/* EOF record is zero length, since we don't bother to represent  in output_records()