2 * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 * pagebundler converts the given file into a valid C program that can
19 * be compiled. The generated code provides a variable that holds the
20 * content of the original file and a _len variable with the size.
22 * Usage: pagebundler -f file -v varname > outfile
35 main(int argc, char **argv)
42 while ((ch = getopt(argc, argv, "f:v:")) != -1) {
51 fprintf(stderr, "%s: wrong usage\n",
57 if (file == NULL || varname == NULL) {
58 fprintf(stderr, "%s: wrong usage\n", argv[0]);
62 if ((f = fopen(file, "r")) == NULL) {
63 fprintf(stderr, "%s: can't open %s: %s",
64 argv[0], file, strerror(errno));
68 printf("const uint8_t %s[] = {\n", varname);
73 r = fread(buf, 1, sizeof(buf), f);
80 for (i = 0; i < r; ++i) {
81 printf("0x%x, ", buf[i]);
91 * if nothing was emitted, add a NUL byte. This was
92 * still produce an exact copy of the file because
93 * `len' doesn't count this NUL byte. It prevents the
94 * "use of GNU empty initializer extension" warning
95 * when bundling pages/about_empty.gmi
100 printf("}; /* %s */\n", varname);
102 printf("size_t %s_len = %zu;\n", varname, len);