From 5b27fbe990d868441452c474e5b14e94f8bc8335 Mon Sep 17 00:00:00 2001
From: Denis Vlasenko
Date: Sat, 24 Mar 2007 14:06:51 +0000
Subject: dc: use common_bufsiz1 for evaluation stack msh: fix "underscore bug"
 (a_b=1111 didn't work) dnsd: openlog(), so that applet's name is logged

---
 shell/msh.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

(limited to 'shell')

diff --git a/shell/msh.c b/shell/msh.c
index 41f4cc6..d9dd3ef 100644
--- a/shell/msh.c
+++ b/shell/msh.c
@@ -1191,23 +1191,22 @@ static int isassign(const char *s)
 	unsigned char c;
 	DBGPRINTF7(("ISASSIGN: enter, s=%s\n", s));
 
-	/* no isalpha() - we shouldn't use locale */
 	c = *s;
-	if (c != '_'
-	 && (unsigned)((c|0x20) - 'a') > 25 /* not letter */
-	) {
+	/* no isalpha() - we shouldn't use locale */
+	/* c | 0x20 - lowercase (Latin) letters */
+	if (c != '_' && (unsigned)((c|0x20) - 'a') > 25)
+		/* not letter */
 		return 0;
-	}
+
 	while (1) {
 		c = *++s;
-		if (c == '\0')
-			return 0;
 		if (c == '=')
 			return 1;
-		c |= 0x20; /* lowercase letters, doesn't affect numbers */
+		if (c == '\0')
+			return 0;
 		if (c != '_'
 		 && (unsigned)(c - '0') > 9  /* not number */
-		 && (unsigned)(c - 'a') > 25 /* not letter */
+		 && (unsigned)((c|0x20) - 'a') > 25 /* not letter */
 		) {
 			return 0;
 		}
-- 
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