tab completion on show dialplan from -r asterisk with large extensions.conf will...

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/v1-0@4008 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/cli.c b/cli.c
index 045844021aca0b34db1bd80713ec5cf6af25176e..f1ac752df6ed3b6dde48f2ec2712ef7de10b4734 100755 (executable)
--- a/cli.c
+++ b/cli.c
@@ -437,11 +437,11 @@ static char *__ast_cli_generator(char *text, char *word, int state, int lock);
 
 static int handle_commandmatchesarray(int fd, int argc, char *argv[])
 {
-       char *buf;
+       char *buf, *obuf;
        int buflen = 2048;
        int len = 0;
        char **matches;
-       int x;
+       int x, matchlen;
 
        if (argc != 4)
                return RESULT_SHOWUSAGE;
@@ -455,11 +455,17 @@ static int handle_commandmatchesarray(int fd, int argc, char *argv[])
 #if 0
                        printf("command matchesarray for '%s' %s got '%s'\n", argv[2], argv[3], matches[x]);
 #endif
-                       if (len + strlen(matches[x]) >= buflen) {
-                               buflen += strlen(matches[x]) * 3;
-                               buf = realloc(buf, buflen);
+                       matchlen = strlen(matches[x]) + 1;
+                       if (len + matchlen >= buflen) {
+                               buflen += matchlen * 3;
+                               obuf = buf;
+                               buf = realloc(obuf, buflen);
+                               if (!buf) 
+                                       /* Out of memory...  Just free old buffer and be done */
+                                       free(obuf);
                        }
-                       len += sprintf( buf + len, "%s ", matches[x]);
+                       if (buf)
+                               len += sprintf( buf + len, "%s ", matches[x]);
                        free(matches[x]);
                        matches[x] = NULL;
                }