2 files changed, 69 insertions, 24 deletions

diff --git a/innobase/ut/ut0byte.c b/innobase/ut/ut0byte.c
index 02bdf2065ee..4ec7e0f405e 100644
--- a/innobase/ut/ut0byte.c
+++ b/innobase/ut/ut0byte.c
@@ -36,9 +36,9 @@ Copies a string to a memory location, setting characters to lower case. */
 void
 ut_cpy_in_lower_case(
 /*=================*/
-        char*   dest,  /* in: destination */
-	char*   source,/* in: source */
-        ulint   len)   /* in: string length */
+	char*		dest,	/* in: destination */
+	const char*	source,	/* in: source */
+	ulint		len)	/* in: string length */
 {
         ulint i;
 
@@ -53,23 +53,27 @@ Compares two strings when converted to lower case. */
 int
 ut_cmp_in_lower_case(
 /*=================*/
-		       /* out: -1, 0, 1 if str1 < str2, str1 == str2,
-		       str1 > str2, respectively */
-       char*   str1,   /* in: string1 */
-       char*   str2,   /* in: string2 */
-       ulint   len)    /* in: length of both strings */
+				/* out: -1, 0, 1 if str1 < str2, str1 == str2,
+				str1 > str2, respectively */
+	const char*	str1,	/* in: string1 */
+	const char*	str2)	/* in: string2 */
 {
-       ulint i;
-
-       for (i = 0; i < len; i++) {
-	       if (tolower(str1[i]) < tolower(str2[i])) {
-		       return(-1);
-	       }
-
-	       if (tolower(str1[i]) > tolower(str2[i])) {
-	               return(1);
-	       }
-       }
+	for (;;) {
+		int c1, c2;
+		if (!*str1) {
+			return(*str2 ? -1 : 0);
+		} else if (!*str2) {
+			return 1;
+		}
+		c1 = tolower(*str1++);
+		c2 = tolower(*str2++);
+		if (c1 < c2) {
+			return(-1);
+		}
+		if (c1 > c2) {
+			return(1);
+		}
+	}
 
-       return(0);
+	return(0);
 }
diff --git a/innobase/ut/ut0mem.c b/innobase/ut/ut0mem.c
index f5d207d8bba..1fcaf9febbe 100644
--- a/innobase/ut/ut0mem.c
+++ b/innobase/ut/ut0mem.c
@@ -106,7 +106,7 @@ ut_malloc_low(
 
 		/* Make an intentional seg fault so that we get a stack
 		trace */
-		printf("%lu\n", *ut_mem_null_ptr);	
+		if (*ut_mem_null_ptr) ut_mem_null_ptr = 0;
 	}		
 
 	if (set_to_zero) {
@@ -195,6 +195,49 @@ ut_free_all_mem(void)
 }
 
 /**************************************************************************
+Make a quoted copy of a string. */
+
+char*
+ut_strcpyq(
+/*=======*/
+				/* out: pointer to end of dest */
+	char*		dest,	/* in: output buffer */
+	char		q,	/* in: the quote character */
+	const char*	src)	/* in: null-terminated string */
+{
+	while (*src) {
+		if ((*dest++ = *src++) == q) {
+			*dest++ = q;
+		}
+	}
+
+	return(dest);
+}
+
+/**************************************************************************
+Make a quoted copy of a fixed-length string. */
+
+char*
+ut_memcpyq(
+/*=======*/
+				/* out: pointer to end of dest */
+	char*		dest,	/* in: output buffer */
+	char		q,	/* in: the quote character */
+	const char*	src,	/* in: string to be quoted */
+	ulint		len)	/* in: length of src */
+{
+	const char*	srcend = src + len;
+
+	while (src < srcend) {
+		if ((*dest++ = *src++) == q) {
+			*dest++ = q;
+		}
+	}
+
+	return(dest);
+}
+
+/**************************************************************************
 Catenates two strings into newly allocated memory. The memory must be freed
 using mem_free. */
 
@@ -215,9 +258,7 @@ ut_str_catenate(
 	str = mem_alloc(len1 + len2 + 1);
 
 	ut_memcpy(str, str1, len1);
-	ut_memcpy(str + len1, str2, len2);
-
-	str[len1 + len2] = '\0';
+	ut_memcpy(str + len1, str2, len2 + 1);
 
 	return(str);
 }