From 828548ab56ed2dca36daf0dfdbb0644119ecbe2c Mon Sep 17 00:00:00 2001
From: Rob Landley
Date: Thu, 1 Sep 2005 10:23:57 +0000
Subject: According to bug #63, crond is unhappy with crontab lines that don't
 end in a newline, or lines that have trailing spaces.

---
 libbb/trim.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

(limited to 'libbb')

diff --git a/libbb/trim.c b/libbb/trim.c
index 38aa282..0dca667 100644
--- a/libbb/trim.c
+++ b/libbb/trim.c
@@ -29,14 +29,18 @@
 
 void trim(char *s)
 {
-	int len = strlen(s);
+	size_t len = strlen(s);
+	size_t lws;
 
 	/* trim trailing whitespace */
-	while ( len > 0 && isspace(s[len-1]))
-		s[--len]='\0';
+	while (len && isspace(s[len-1])) --len;
 
 	/* trim leading whitespace */
-	memmove(s, &s[strspn(s, " \n\r\t\v")], len);
+	if(len) {
+		lws = strspn(s, " \n\r\t\v");
+		memmove(s, s + lws, len -= lws);
+	}
+	s[len] = 0;
 }
 
 /* END CODE */
-- 
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