merges r24839 from trunk into ruby_1_9_1.

--
* dln.c (aix_loaderror): get rid of using uninitialized value in the
  case loadquery fails.  fixed wrong index variable usage.  see
  [ruby-core:25479].

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@25597 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 6 deletions

diff --git a/dln.c b/dln.c
index 8826e94c5f..1672838972 100644
--- a/dln.c
+++ b/dln.c
@@ -1155,10 +1155,10 @@ dln_strerror(void)
 static void
 aix_loaderror(const char *pathname)
 {
-    char *message[8], errbuf[1024];
+    char *message[1024], errbuf[1024];
     int i,j;
 
-    struct errtab { 
+    static const struct errtab {
 	int errnum;
 	char *errstr;
     } load_errtab[] = {
@@ -1179,15 +1179,16 @@ aix_loaderror(const char *pathname)
 #define LOAD_ERRTAB_LEN	(sizeof(load_errtab)/sizeof(load_errtab[0]))
 #define ERRBUF_APPEND(s) strncat(errbuf, s, sizeof(errbuf)-strlen(errbuf)-1)
 
-    snprintf(errbuf, 1024, "load failed - %s ", pathname);
+    snprintf(errbuf, sizeof(errbuf), "load failed - %s ", pathname);
 
-    if (!loadquery(1, &message[0], sizeof(message))) 
+    message[0] = NULL;
+    if (!loadquery(L_GETMESSAGE, &message[0], sizeof(message)))
 	ERRBUF_APPEND(strerror(errno));
     for(i = 0; message[i] && *message[i]; i++) {
 	int nerr = atoi(message[i]);
 	for (j=0; j<LOAD_ERRTAB_LEN; j++) {
-           if (nerr == load_errtab[i].errnum && load_errtab[i].errstr)
-		ERRBUF_APPEND(load_errtab[i].errstr);
+           if (nerr == load_errtab[j].errnum && load_errtab[j].errstr)
+		ERRBUF_APPEND(load_errtab[j].errstr);
 	}
 	while (isdigit(*message[i])) message[i]++; 
 	ERRBUF_APPEND(message[i]);