patch-1.3.9 linux/drivers/sound/hex2hex.h

• Lines: 98
• Date: Wed Mar 29 13:30:30 1995
• Orig file: v1.3.8/linux/drivers/sound/hex2hex.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.8/linux/drivers/sound/hex2hex.h linux/drivers/sound/hex2hex.h
@@ -0,0 +1,97 @@
+/*
+ * This file is a part of configure.c
+ *
+ * hex2hex reads an input file in Intel HEX format and produces
+ * an (unsigned char) array which contains the bytes and writes it to the
+ * output file using C syntax
+ */
+
+#define MAX_SIZE (256*1024)
+#define ABANDON(why) { \
+		fprintf(stderr, "%s: " why "\n", source); \
+		fclose(inf);fclose(outf);return 0; \
+		}
+
+int hex2hex(char *source, char *target, char *varline)
+{
+	FILE *inf, *outf;
+
+	int i,l, c;
+	unsigned char buf[MAX_SIZE];
+
+	if ((inf=fopen(source, "r"))==NULL)
+	{
+		perror(source);
+		return 0;
+	}
+
+	if ((outf=fopen(target, "w"))==NULL)
+	{
+		perror(target);
+		fclose(inf);
+		return 0;
+	}
+
+	l=0;
+
+	while ((c=getc(inf))!=EOF)
+	{
+		if (c == ':')	/* Sync with beginning of line */
+		{
+			int n, check;
+			unsigned char sum;
+			int addr;
+			int linetype;
+
+			if (fscanf(inf, "%02x", &n) != 1)
+			   ABANDON("File format error");
+			sum = n;
+
+			if (fscanf(inf, "%04x", &addr) != 1)
+			   ABANDON("File format error");
+			sum += addr/256;
+			sum += addr%256;
+
+			if (fscanf(inf, "%02x", &linetype) != 1)
+			   ABANDON("File format error");
+			sum += linetype;
+
+			if (linetype != 0)
+			   continue;
+
+			for (i=0;i<n;i++)
+			{
+				if (fscanf(inf, "%02x", &c) != 1)
+			   	   ABANDON("File format error");
+				if (addr >= MAX_SIZE)
+				   ABANDON("File too large");
+				buf[addr++] = c;
+				if (addr > l)
+				   l = addr;
+				sum += c;
+			}
+
+			if (fscanf(inf, "%02x", &check) != 1)
+			   ABANDON("File format error");
+
+			sum = ~sum + 1;
+			if (check != sum)
+			   ABANDON("Line checksum error");
+		}
+	}
+
+	fprintf(outf, "/*\n *\t Computer generated file. Do not edit.\n */\n");
+	fprintf(outf, "%s[] = {\n", varline);
+
+	for (i=0;i<l;i++)
+	{
+		if (i) fprintf(outf, ",");
+		if (i && !(i % 16)) fprintf(outf, "\n");
+		fprintf(outf, "0x%02x", buf[i]);
+	}
+
+	fprintf(outf, "\n};\n\n");
+	fclose(inf);
+	fclose(outf);
+	return 1;
+}