1 files changed, 88 insertions, 0 deletions
diff --git a/int2bin.c b/int2bin.c
new file mode 100644
index 0000000..78125e3
--- /dev/null
+++ b/int2bin.c
@@ -0,0 +1,88 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <errno.h>
+
+#define TRUE	1
+#define FALSE	0
+
+static const int ToHex(char c)
+{
+    c=toupper(c);
+
+    if (c>='0' && c<='9')
+	return c-'0';
+
+    if (c>='A' && c<='F')
+	return c-'A'+10;
+
+    return 0;
+}
+
+
+int main (int argc, char *argv[])
+{
+    FILE *in, *out;
+    char buff[1024];
+    int done;
+    int tot;
+
+    if (argc!=3)
+    {
+    	fprintf(stderr,"%s: usage %s source dest\n",argv[0],argv[0]);
+	exit(EXIT_FAILURE);
+    }
+
+    if (!(in=fopen(argv[1],"r")))
+    {
+    	fprintf(stderr,"Couldn't open '%s'\n",argv[1]);
+	exit(EXIT_FAILURE);
+    }
+
+    if (!(out=fopen(argv[2],"wb")))
+    {
+    	fprintf(stderr,"Couldn't create '%s'\n",argv[2]);
+	exit(EXIT_FAILURE);
+    }
+
+    done=0;
+    tot=0;
+
+    while(!done)
+    {
+	if (!fgets(buff,sizeof buff,in))
+	{
+	    printf("Missing EOF record\n");
+	    done=TRUE;
+	}
+
+	if (!done && buff[0]!=':')
+	{
+	    printf("Invalid Intel HEX file\n");
+	    done=TRUE;
+	}
+
+	if (!done && buff[8]=='1')
+	{
+	    done=TRUE;
+	}
+
+	if (!done)
+	{
+	    int len;
+	    int f;
+
+	    len=ToHex(buff[1])<<4|ToHex(buff[2]);
+
+	    for(f=0;f<len;f++)
+	    {
+		int b;
+
+		b=ToHex(buff[f*2+9])<<4|ToHex(buff[f*2+10]);
+		putc(b,out);
+	    }
+	}
+    }
+
+    return EXIT_SUCCESS;
+}