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/*
* bin2c.c
*
* Copyright (C) 2001, 2002 Stefan Weyergraf
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <sys/types.h> // needed for dirent.h on Darwin
#include <dirent.h> /* for NAME_MAX */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#ifndef NAME_MAX
#define NAME_MAX 255
#endif
#define OPT_FORCE_HEX 1
int options = 0;
#define ERROR(s...) { printf("error: " s); puts("\n"); exit(1); }
static void char2cchar(char *buf, char c)
{
if ((!(options & OPT_FORCE_HEX)) && ((c>=32) && (c<='~'))) {
if (c=='\'') {
strcpy(buf, "'\\''");
} else if (c=='\\') {
strcpy(buf, "'\\\\'");
} else {
sprintf(buf, "'%c'", (unsigned char)c);
}
} else {
sprintf(buf, "0x%02x", (unsigned char)c);
}
}
#define BUFSIZE 1024
#define CHARS_PER_LINE 8
static void bin2c_table(int size, FILE *in, FILE *out)
{
char buf[BUFSIZE];
size_t s = sizeof buf;
int i, j=0;
char elem[16];
while ((s = fread(buf, 1, s, in))) {
for (i = 0; i < s; i++) {
int elemlen;
if (i % CHARS_PER_LINE == 0) {
fputs("\t", out);
}
char2cchar(elem, buf[i]);
elemlen = strlen(elem);
fputs(elem, out);
if (j+1 < size) {
int k;
fputs(",", out);
for (k=0; k<4-elemlen; k++) fputs(" ", out);
if ((j+1) % CHARS_PER_LINE == 0) {
fputs("\n", out);
}
} else {
fputs("\n", out);
}
j++;
}
}
}
static void bin2c(char *name, int size, FILE *in, FILE *out, char *inname)
{
fprintf(out, "/* generated by bin2c from %s */\n\n", inname);
fprintf(out, "char %s[%d] = {\n", name, size);
bin2c_table(size, in, out);
fputs("};\n", out);
}
static void bin2h(char *name, int size, FILE *out, char *outname)
{
char q[NAME_MAX];
int i, l;
strcpy(q, outname);
l=strlen(q);
for (i=0; i<l; i++) {
if ((q[i]>='a') && (q[i]<='z')) {
q[i]+='A'-'a';
}
if (((q[i]<'A') || (q[i]>'Z')) &&
((q[i]<'0') || (q[i]>'9'))) {
q[i]='_';
}
}
fprintf(out, "#ifndef __%s\n", q);
fprintf(out, "#define __%s\n\n", q);
fputs("extern\n#ifdef __cplusplus\n\"C\"\n#endif\n", out);
fprintf(out, "char %s[%d];\n", name, size);
fprintf(out, "\n#endif /* __%s */\n", q);
}
static void syntax(char *name)
{
printf("syntax: %s [-Ndataname] infile c-outfile [h-outfile]\n", name);
exit(1);
}
int main(int argc, char *argv[])
{
int l;
FILE *in=NULL, *out=NULL, *outh=NULL;
char *inname, *outname, *outhname;
char *name="bindata";
int x=1;
char n[NAME_MAX];
if (argc > 1 && strncmp(argv[1], "-N", 2) == 0) {
name = argv[1]+2;
x++;
}
if (argc >= x + 1) {
inname = argv[x];
} else {
syntax(argv[0]);
}
in=fopen(inname, "rb");
if (!in) ERROR("can't open input file: %s", inname);
if (argc >= x+2) {
outname = argv[x+1];
if (argc >= x+3) {
outhname = argv[x+2];
} else {
int k = strlen(outname);
strcpy(n, outname);
if (k > 2 && strncmp(argv[x+1]+k-2, ".c", 2) == 0) {
strcpy(n+k-2, ".h");
} else {
strcpy(n+k, ".h");
}
outhname = n;
}
outh = fopen(outhname, "wb");
if (!outh) ERROR("can't open .h output file: %s", outhname);
} else {
ERROR("no output file");
}
out = fopen(outname, "wb");
if (!out) ERROR("can't open .c output file: %s", outname);
fseek(in, 0, SEEK_END);
l = ftell(in);
fseek(in, 0, SEEK_SET);
bin2c(name, l, in, out, inname);
bin2h(name, l, outh, outhname);
return 0;
}
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