This patch makes some of the memory manipulation performed by psql a

little more sane. Some parts of the code was using a static function
xmalloc() that did safe memory allocation (where "safe" means "bail
out on OOM"), but most of it was just invoking calloc() or malloc()
directly. Now almost everything invokes xmalloc() or xcalloc().

1 files changed, 10 insertions, 24 deletions

diff --git a/src/bin/psql/tab-complete.c b/src/bin/psql/tab-complete.c
index 58ef84f9a52..40650d3e1a9 100644
--- a/src/bin/psql/tab-complete.c
+++ b/src/bin/psql/tab-complete.c
@@ -3,7 +3,7 @@
  *
  * Copyright (c) 2000-2003, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/bin/psql/tab-complete.c,v 1.98 2004/01/10 02:21:08 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/psql/tab-complete.c,v 1.99 2004/01/24 19:38:49 neilc Exp $
  */
 
 /*----------------------------------------------------------------------
@@ -1485,9 +1485,7 @@ _complete_from_query(int is_schema_query, const char *text, int state)
 		/* Set up suitably-escaped copies of textual inputs */
 		if (text)
 		{
-			e_text = (char *) malloc(strlen(text) * 2 + 1);
-			if (!e_text)
-				return NULL;
+			e_text = xmalloc(strlen(text) * 2 + 1);
 			PQescapeString(e_text, text, strlen(text));
 		}
 		else
@@ -1495,16 +1493,12 @@ _complete_from_query(int is_schema_query, const char *text, int state)
 
 		if (completion_info_charp)
 		{
-			e_info_charp = (char *)
-				malloc(strlen(completion_info_charp) * 2 + 1);
-			if (!e_info_charp)
-			{
-				if (e_text)
-					free(e_text);
-				return NULL;
-			}
+			size_t charp_len;
+
+			charp_len = strlen(completion_info_charp);
+			e_info_charp = xmalloc(charp_len * 2 + 1);
 			PQescapeString(e_info_charp, completion_info_charp,
-						   strlen(completion_info_charp));
+						   charp_len);
 		}
 		else
 			e_info_charp = NULL;
@@ -1794,15 +1788,7 @@ previous_word(int point, int skip)
 	}
 
 	/* make a copy */
-	s = (char *) malloc(end - start + 2);
-	if (!s)
-	{
-		psql_error("out of memory\n");
-		if (!pset.cur_cmd_interactive)
-			exit(EXIT_FAILURE);
-		else
-			return NULL;
-	}
+	s = xmalloc(end - start + 2);
 
 	strncpy(s, &rl_line_buffer[start], end - start + 1);
 	s[end - start + 1] = '\0';
@@ -1828,7 +1814,7 @@ quote_file_name(char *text, int match_type, char *quote_pointer)
 	(void) quote_pointer;		/* not used */
 
 	length = strlen(text) +(match_type == SINGLE_MATCH ? 3 : 2);
-	s = malloc(length);
+	s = xmalloc(length);
 	s[0] = '\'';
 	strcpy(s + 1, text);
 	if (match_type == SINGLE_MATCH)
@@ -1849,7 +1835,7 @@ dequote_file_name(char *text, char quote_char)
 		return xstrdup(text);
 
 	length = strlen(text);
-	s = malloc(length - 2 + 1);
+	s = xmalloc(length - 2 + 1);
 	strncpy(s, text +1, length - 2);
 	s[length] = '\0';