use isxdigit and apps_tohex
Replace ad-hoc ascii->hex with isxdigit and new app_tohex.
Reviewed-by: Andy Polyakov <appro@openssl.org>
diff --git a/apps/apps.c b/apps/apps.c
index a4eecae..bec10a2 100644
--- a/apps/apps.c
+++ b/apps/apps.c
@@ -2673,6 +2673,45 @@
#endif
}
+int app_hex(char c)
+{
+ switch (c) {
+ default:
+ case '0':
+ return 0;
+ case '1':
+ return 1;
+ case '2':
+ return 2;
+ case '3':
+ return 3;
+ case '4':
+ return 4;
+ case '5':
+ return 5;
+ case '6':
+ return 6;
+ case '7':
+ return 7;
+ case '8':
+ return 8;
+ case '9':
+ return 9;
+ case 'a': case 'A':
+ return 0x0A;
+ case 'b': case 'B':
+ return 0x0B;
+ case 'c': case 'C':
+ return 0x0C;
+ case 'd': case 'D':
+ return 0x0D;
+ case 'e': case 'E':
+ return 0x0E;
+ case 'f': case 'F':
+ return 0x0F;
+ }
+}
+
/* app_isdir section */
#ifdef _WIN32
int app_isdir(const char *name)
