From 603ccc23789cb53961306a4021fbcc55bb86e7eb Mon Sep 17 00:00:00 2001
From: Sascha Hauer <sha@octopus.labnet.pengutronix.de>
Date: Tue, 25 Sep 2007 13:42:33 +0200
Subject: add $# handling for hush

---
 common/hush.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'common/hush.c')

diff --git a/common/hush.c b/common/hush.c
index ced60271cc..181491a238 100644
--- a/common/hush.c
+++ b/common/hush.c
@@ -328,6 +328,29 @@ static int b_addqchr(o_string *o, int ch, int quote)
 	return b_addchr(o, ch);
 }
 
+/* belongs in utility.c */
+char *simple_itoa(unsigned int i)
+{
+	/* 21 digits plus null terminator, good for 64-bit or smaller ints */
+	static char local[22];
+	char *p = &local[21];
+	*p-- = '\0';
+	do {
+		*p-- = '0' + i % 10;
+		i /= 10;
+	} while (i > 0);
+	return p + 1;
+}
+
+static int b_adduint(o_string *o, unsigned int i)
+{
+	int r;
+	char *p = simple_itoa(i);
+	/* no escape checking necessary */
+	do r=b_addchr(o, *p++); while (r==0 && *p);
+	return r;
+}
+
 static int static_get(struct in_str *i)
 {
 	int ch=*i->p++;
@@ -335,6 +358,7 @@ static int static_get(struct in_str *i)
 	return ch;
 }
 
+
 static int static_peek(struct in_str *i)
 {
 	return *i->p;
@@ -1078,6 +1102,10 @@ static int handle_dollar(o_string *dest, struct p_context *ctx, struct in_str *i
 			b_addchr(dest, SPECIAL_VAR_SYMBOL);
 			advance = 1;
 			break;
+		case '#':
+			b_adduint(dest,ctx->global_argc ? ctx->global_argc-1 : 0);
+			advance = 1;
+			break;
 		case '{':
 			b_addchr(dest, SPECIAL_VAR_SYMBOL);
 			ctx->child->sp++;
-- 
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