update changelog

[proxmark3-svn] / client / util.c

diff --git a/client/util.c b/client/util.c
index bce1c122e7857f923e6cece70d97e6554a84c907..edd9aebce96dec0a3de08dc7ad68798a9a8a0aaf 100644 (file)
--- a/client/util.c
+++ b/client/util.c
@@ -213,6 +213,7 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum)
        return 0;
 }
 
+
 char param_getchar(const char *line, int paramnum)
 {
        int bg, en;
@@ -228,14 +229,15 @@ uint8_t param_get8(const char *line, int paramnum)
 }
 
 /**
- * @brief Reads a decimal integer
+ * @brief Reads a decimal integer (actually, 0-254, not 255)
  * @param line
  * @param paramnum
- * @return
+ * @return -1 if error
  */
 uint8_t param_getdec(const char *line, int paramnum, uint8_t *destination)
 {
-       uint8_t val = param_get8ex(line, paramnum, 10, 10);
+       uint8_t val =  param_get8ex(line, paramnum, 255, 10);
+       if( (int8_t) val == -1) return 1;
        (*destination) = val;
        return 0;
 }