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53 lines
1.2 KiB
53 lines
1.2 KiB
3 years ago
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// taken from https://stackoverflow.com/a/11814544/4634140
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#include <stdlib.h>
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#include <stdio.h>
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FILE* open_or_exit(const char* fname, const char* mode)
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{
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FILE* f = fopen(fname, mode);
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if (f == NULL) {
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perror(fname);
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exit(EXIT_FAILURE);
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}
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return f;
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}
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int main(int argc, char** argv)
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{
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if (argc < 3) {
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fprintf(stderr, "USAGE: %s {sym} {rsrc}\n\n"
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" Creates {sym}.c from the contents of {rsrc}\n",
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argv[0]);
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return EXIT_FAILURE;
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}
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const char* sym = argv[1];
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FILE* in = open_or_exit(argv[2], "r");
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char symfile[256];
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snprintf(symfile, sizeof(symfile), "%s.c", sym);
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FILE* out = open_or_exit(symfile,"w");
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fprintf(out, "#include <stdlib.h>\n");
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fprintf(out, "const char %s[] = {\n", sym);
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unsigned char buf[256];
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size_t nread = 0;
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size_t linecount = 0;
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do {
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nread = fread(buf, 1, sizeof(buf), in);
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size_t i;
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for (i=0; i < nread; i++) {
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fprintf(out, "0x%02x, ", buf[i]);
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if (++linecount == 10) { fprintf(out, "\n"); linecount = 0; }
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}
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} while (nread > 0);
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if (linecount > 0) fprintf(out, "\n");
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fprintf(out, "};\n");
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fprintf(out, "const size_t %s_len = sizeof(%s);\n\n",sym,sym);
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fclose(in);
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fclose(out);
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return EXIT_SUCCESS;
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}
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