comparison utils/gen-hex-lines.c @ 61:ffbbce856ac7

utils/gen-hex-lines: import from vband-misc repository
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 25 Sep 2024 18:48:17 +0000
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60:eeb28c9c633a 61:ffbbce856ac7
1 /*
2 * This program reads an arbitrary binary file and converts it into ASCII hex
3 * output with a specified number of bytes per line.
4 */
5
6 #include <stdio.h>
7 #include <stdlib.h>
8
9 main(argc, argv)
10 char **argv;
11 {
12 FILE *inf, *outf;
13 int c, lcnt, bpl;
14
15 if (argc != 4) {
16 fprintf(stderr,
17 "usage: %s input.bin output.hex bytes-per-line\n",
18 argv[0]);
19 exit(1);
20 }
21 inf = fopen(argv[1], "r");
22 if (!inf) {
23 perror(argv[1]);
24 exit(1);
25 }
26 outf = fopen(argv[2], "w");
27 if (!outf) {
28 perror(argv[2]);
29 exit(1);
30 }
31 bpl = atoi(argv[3]);
32 lcnt = 0;
33 for (;;) {
34 c = getc(inf);
35 if (c < 0)
36 break;
37 fprintf(outf, "%02X", c);
38 lcnt++;
39 if (lcnt >= bpl) {
40 putc('\n', outf);
41 lcnt = 0;
42 }
43 }
44 if (lcnt)
45 putc('\n', outf);
46 exit(0);
47 }