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executable file 92 lines (78 sloc) 2.58 KB
/*
* bin2c - Copyright (c) 2009-2018 Kim Holviala <kimholviala@fastmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Convert any file into a C #define
*
* Yes, this would have been a perl one-liner, but I didn't want
* to include compile-time dependency for perl...
*/
#include <stdio.h>
#include <unistd.h>
int main(int argc, char *argv[])
{
FILE *fp;
char *source = NULL;
char *name = NULL;
int first = 1;
int zero = 0;
int c;
int i;
/* Parse args */
while ((c = getopt(argc, argv, "n:0")) != -1) {
switch(c) {
case 'n': name = optarg; break;
case '0': zero = 1; break;
}
}
source = argv[optind];
if (!name) name = source;
/* Check args */
if (!source) {
fprintf(stderr, "Usage: %s [-0] [-n <name>] <source>\n", argv[0]);
return 1;
}
/* Try to open the source file */
if ((fp = fopen(source, "r")) == NULL) {
perror("Couldn't open source file");
return 1;
}
/* Convert */
printf("/* Automatically generated from %s */\n\n"
"#define %s { \\\n", source, name);
do {
for (i = 0; i < 16; i++) {
if ((c = fgetc(fp)) == EOF) {
if (zero--) c = '\0';
else break;
}
if (i == 0 && !first) printf(", \\\n");
if (i > 0) printf(", ");
printf("0x%02x", c);
first = 0;
}
} while (c != EOF);
printf("}\n\n");
fclose(fp);
return 0;
}