[ofw] [PATCH] ttcp.c - add scaled atoi() routine.

[Smith, Stan]

Add getScaledInt(char*) routine to faciliate switch argument scaling ease (-b32K or -l 1G).
Valid for switches -n, -l, -A, -O, -b

Signed-off-by: stan smith (stan.smith at intelcom)

--- tests/wsd/user/ttcp/ttcp.c	Mon Nov 15 12:57:28 2010
+++ tests/wsd/user/ttcp/ttcp.c	Mon Oct 24 14:02:17 2011
@@ -141,6 +141,38 @@
 double time_elapsed();
 char *outfmt();
 
+/*
+ * input a scaled (K, M or G) integer. Suitable for use with getopt.
+ *
+ * inputs:
+ *	*s	C string representing an interger value with optional Scale char.
+ *		'xK' imples x * 1024, 'xM' implies x*1024*1024,'xG' implies x*1024*1024*1024
+ *
+ * output:
+ *	binary integer representation.
+ */
+
+static int
+getScaledInt(char *s)
+{
+	int	val;
+	char *e;
+
+	val = strtol(s,&e,0);
+	if (e == NULL || *e =='\0')
+		return val;
+
+	if (*e == 'k' || *e == 'K')
+		val *= 1024;
+	else if (*e == 'm' || *e == 'M')
+		val *= 1024*1024;
+	else if (*e == 'g' || *e == 'G')
+		val *= 1024*1024*1024;
+
+	return val;
+}
+
+
 int __cdecl main(int argc, char **argv)
 {
 	SYSTEMTIME time0, time1;
@@ -663,10 +695,10 @@
 	#endif
 			break;
 		case 'n':
-			nbuf = atoi(optarg);
+			nbuf = getScaledInt(optarg);
 			break;
 		case 'l':
-			buflen = atoi(optarg);
+			buflen = getScaledInt(optarg);
 			break;
 		case 'p':
 			port = (short)atoi(optarg);
@@ -675,14 +707,14 @@
 			udp = 1;
 			break;
 		case 'A':
-			bufalign = atoi(optarg);
+			bufalign = getScaledInt(optarg);
 			break;
 		case 'O':
-			bufoffset = atoi(optarg);
+			bufoffset = getScaledInt(optarg);
 			break;
 		case 'b':
 	#if defined(SO_SNDBUF) || defined(SO_RCVBUF)
-			sockbufsize = atoi(optarg);
+			sockbufsize = getScaledInt(optarg);
 	#else
 			fprintf(stderr, 
 	"ttcp: -b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported\n");