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-rw-r--r--utils/xxd.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/utils/xxd.c b/utils/xxd.c
new file mode 100644
index 000000000..a4e5dac5b
--- /dev/null
+++ b/utils/xxd.c
@@ -0,0 +1,135 @@
+/*
+ * xxd utility
+ *
+ * Copyright 2020 Lars Wirzenius
+ * Copyright 2020 Vincent Sanders <vince@netsurf-browser.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+static char *get_array_name(const char *fname)
+{
+ int fnamelen;
+ char *aryname;
+ int idx;
+
+ fnamelen = strlen(fname);
+ aryname = malloc(fnamelen + 1);
+
+ if (aryname != NULL) {
+ for (idx = 0; idx < fnamelen; idx++) {
+ int c = fname[idx];
+ if ((c >= '0' && c <= '9') ||
+ (c >= 'A' && c <= 'Z') ||
+ (c >= 'a' && c <= 'z')) {
+ aryname[idx] = fname[idx];
+ } else {
+ aryname[idx] = '_';
+ }
+ }
+ aryname[idx] = 0;
+ }
+ return aryname;
+}
+
+int main(int argc, char **argv)
+{
+ int inc = 0;
+ int opt;
+ int c, n;
+ FILE *inf;
+ FILE *outf;
+ char *aryname = NULL;
+ int outlen;
+
+ while ((opt = getopt(argc, argv, "i")) != -1) {
+ switch (opt) {
+ case 'i':
+ inc = 1;
+ break;
+
+ default: /* '?' */
+ fprintf(stderr, "Usage: %s [-i] [infile [outfile]]]\n",
+ argv[0]);
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ if (optind < argc) {
+ inf = fopen(argv[optind], "r");
+ if (inf == NULL) {
+ perror("Opening for read");
+ exit(EXIT_FAILURE);
+ }
+ aryname = get_array_name(argv[optind]);
+ optind++;
+ } else {
+ inf = stdin;
+
+ }
+
+ if (optind < argc) {
+ outf = fopen(argv[optind], "w");
+ if (outf == NULL) {
+ perror("Opening for write");
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ outf = stdout;
+ }
+
+ if ((inc != 0) && (aryname != NULL)) {
+ fprintf(outf, "unsigned char %s[] = {\n", aryname);
+ }
+
+ outlen = 0;
+ n = 0;
+ while ((c = getc(inf)) != EOF) {
+ if (n == 0) {
+ fprintf(outf, " ");
+ }
+ fprintf(outf, " 0x%02x,", c);
+ n += 1;
+ outlen++;
+ if (n >= 12) {
+ fprintf(outf, "\n");
+ n = 0;
+ }
+ }
+ if (n > 0) {
+ fprintf(outf, "\n");
+ }
+
+ if ((inc != 0) && (aryname != NULL)) {
+ fprintf(outf, "};\nunsigned int %s_len = %d;\n",
+ aryname, outlen);
+ }
+
+
+
+ fclose(outf);
+ fclose(inf);
+
+ return 0;
+}