Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * hex2hex reads stdin in Intel HEX format and produces an |
| 3 | * (unsigned char) array which contains the bytes and writes it |
| 4 | * to stdout using C syntax |
| 5 | */ |
| 6 | |
| 7 | #include <stdio.h> |
| 8 | #include <string.h> |
| 9 | #include <stdlib.h> |
| 10 | |
| 11 | #define ABANDON(why) { fprintf(stderr, "%s\n", why); exit(1); } |
| 12 | #define MAX_SIZE (256*1024) |
| 13 | unsigned char buf[MAX_SIZE]; |
| 14 | |
Josh Triplett | e8e63cb | 2009-10-16 16:03:49 -0700 | [diff] [blame^] | 15 | static int loadhex(FILE *inf, unsigned char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | { |
| 17 | int l=0, c, i; |
| 18 | |
| 19 | while ((c=getc(inf))!=EOF) |
| 20 | { |
| 21 | if (c == ':') /* Sync with beginning of line */ |
| 22 | { |
| 23 | int n, check; |
| 24 | unsigned char sum; |
| 25 | int addr; |
| 26 | int linetype; |
| 27 | |
| 28 | if (fscanf(inf, "%02x", &n) != 1) |
| 29 | ABANDON("File format error"); |
| 30 | sum = n; |
| 31 | |
| 32 | if (fscanf(inf, "%04x", &addr) != 1) |
| 33 | ABANDON("File format error"); |
| 34 | sum += addr/256; |
| 35 | sum += addr%256; |
| 36 | |
| 37 | if (fscanf(inf, "%02x", &linetype) != 1) |
| 38 | ABANDON("File format error"); |
| 39 | sum += linetype; |
| 40 | |
| 41 | if (linetype != 0) |
| 42 | continue; |
| 43 | |
| 44 | for (i=0;i<n;i++) |
| 45 | { |
| 46 | if (fscanf(inf, "%02x", &c) != 1) |
| 47 | ABANDON("File format error"); |
| 48 | if (addr >= MAX_SIZE) |
| 49 | ABANDON("File too large"); |
| 50 | buf[addr++] = c; |
| 51 | if (addr > l) |
| 52 | l = addr; |
| 53 | sum += c; |
| 54 | } |
| 55 | |
| 56 | if (fscanf(inf, "%02x", &check) != 1) |
| 57 | ABANDON("File format error"); |
| 58 | |
| 59 | sum = ~sum + 1; |
| 60 | if (check != sum) |
| 61 | ABANDON("Line checksum error"); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | return l; |
| 66 | } |
| 67 | |
| 68 | int main( int argc, const char * argv [] ) |
| 69 | { |
| 70 | const char * varline; |
| 71 | int i,l; |
| 72 | int id=0; |
| 73 | |
| 74 | if(argv[1] && strcmp(argv[1], "-i")==0) |
| 75 | { |
| 76 | argv++; |
| 77 | argc--; |
| 78 | id=1; |
| 79 | } |
| 80 | if(argv[1]==NULL) |
| 81 | { |
| 82 | fprintf(stderr,"hex2hex: [-i] filename\n"); |
| 83 | exit(1); |
| 84 | } |
| 85 | varline = argv[1]; |
| 86 | l = loadhex(stdin, buf); |
| 87 | |
| 88 | printf("/*\n *\t Computer generated file. Do not edit.\n */\n"); |
| 89 | printf("static int %s_len = %d;\n", varline, l); |
| 90 | printf("static unsigned char %s[] %s = {\n", varline, id?"__initdata":""); |
| 91 | |
| 92 | for (i=0;i<l;i++) |
| 93 | { |
| 94 | if (i) printf(","); |
| 95 | if (i && !(i % 16)) printf("\n"); |
| 96 | printf("0x%02x", buf[i]); |
| 97 | } |
| 98 | |
| 99 | printf("\n};\n\n"); |
| 100 | return 0; |
| 101 | } |