new, derived from old avr/crypto + cast5

[avr-crypto-lib.git] / serial-tools.c

diff --git a/serial-tools.c b/serial-tools.c
new file mode 100644 (file)
index 0000000..b423299
--- /dev/null
+++ b/serial-tools.c
@@ -0,0 +1,64 @@
+/**
+ * 
+ * Author:     Daniel Otte
+ * Date:               16.05.2006
+ * 
+ * This tools should help to parse some input. 
+ * 
+ */
+
+#include "config.h"
+#include "uart.h"
+#include <string.h>
+#include <stdint.h>
+
+int getnextwordn(char *s, int n){ /* words are seperated by spaces */
+       char c = ' ';
+       while ((c=uart_getc()) == ' ')
+               ;
+       *s++ = c;
+       while (n && (*s++=uart_getc())!=' ')
+               ;
+       *(s-1) = '\0';
+       return n;
+}
+
+
+void readhex2buffer(void* buffer, int n){
+       char c;
+       uint8_t i;
+       
+//     DEBUG_S("\r\nDBG: n="); DEBUG_B(n&0xff); DEBUG_S("\r\n");
+       for(i=0; i<n; ++i){
+               c = uart_getc();
+               if ('0'<= c && '9'>=c){
+                       ((uint8_t*)buffer)[i] = c - '0';
+               } else {
+                       c &= ~('A' ^ 'a'); /* make all uppercase */ 
+                       if ('A'<= c && 'F'>=c){
+                               ((uint8_t*)buffer)[i] = c - 'A' + 10;
+                       } else {
+                               /* oh shit, wrong char */
+                       }
+               }
+               
+               ((uint8_t*)buffer)[i] <<= 4;
+               
+               c = uart_getc();
+               if ('0'<= c && '9'>=c){
+                       ((uint8_t*)buffer)[i] |= c - '0';
+               } else {
+                       c &= ~('A' ^ 'a'); /* make all uppercase */ 
+                       if ('A'<= c && 'F'>=c){
+                               ((uint8_t*)buffer)[i] |= c - 'A' + 10;
+                       } else {
+                               /* oh shit, wrong char */
+                       }
+               }
+       } /* for i=0 .. n */
+}
+
+void uart_putptr(void* p){
+       uart_hexdump((void*) &p,2);
+}
+