Merged revisions 184220 via svnmerge from

https://origsvn.digium.com/svn/asterisk/trunk

................
  r184220 | eliel | 2009-03-25 10:38:19 -0400 (Wed, 25 Mar 2009) | 19 lines
  
  Merged revisions 184188 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.4
  
  ........
    r184188 | eliel | 2009-03-25 10:12:54 -0400 (Wed, 25 Mar 2009) | 13 lines
    
    Avoid destroying the CLI line when moving the cursor backward and trying to autocomplete.
    
    When moving the cursor backward and pressing TAB to autocomplete, a NULL is put
    in the line and we are loosing what we have already wrote after the actual
    cursor position.
    
    (closes issue #14373)
    Reported by: eliel
    Patches:
          asterisk.c.patch uploaded by eliel (license 64)
          Tested by: lmadsen
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.0@184222 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/asterisk.c

@@ -2249,11 +2249,12 @@ static char *cli_complete(EditLine *el, int ch)
 	int nummatches = 0;
 	char **matches;
 	int retval = CC_ERROR;
-	char buf[2048];
+	char buf[2048], savechr;
 	int res;
 
 	LineInfo *lf = (LineInfo *)el_line(el);
 
+	savechr = *(char *)lf->cursor;
 	*(char *)lf->cursor = '\0';
 	ptr = (char *)lf->cursor;
 	if (ptr) {
@@ -2279,8 +2280,10 @@ static char *cli_complete(EditLine *el, int ch)
 			char *mbuf;
 			int mlen = 0, maxmbuf = 2048;
 			/* Start with a 2048 byte buffer */			
-			if (!(mbuf = ast_malloc(maxmbuf)))
+			if (!(mbuf = ast_malloc(maxmbuf))) {
+				lf->cursor[0] = savechr;
 				return (char *)(CC_ERROR);
+			}
 			snprintf(buf, sizeof(buf), "_COMMAND MATCHESARRAY \"%s\" \"%s\"", lf->buffer, ptr); 
 			fdsend(ast_consock, buf);
 			res = 0;
@@ -2289,8 +2292,10 @@ static char *cli_complete(EditLine *el, int ch)
 				if (mlen + 1024 > maxmbuf) {
 					/* Every step increment buffer 1024 bytes */
 					maxmbuf += 1024;					
-					if (!(mbuf = ast_realloc(mbuf, maxmbuf)))
+					if (!(mbuf = ast_realloc(mbuf, maxmbuf))) {
+						lf->cursor[0] = savechr;
 						return (char *)(CC_ERROR);
+					}
 				}
 				/* Only read 1024 bytes at a time */
 				res = read(ast_consock, mbuf + mlen, 1024);
@@ -2350,6 +2355,8 @@ static char *cli_complete(EditLine *el, int ch)
 		ast_free(matches);
 	}
 
+	lf->cursor[0] = savechr;
+
 	return (char *)(long)retval;
 }