Unbreak \h; can't do strlen(NULL).

This was broken by the following commmit.  Although the original commit was
backpatched all the way to 7.4, this particular bug exists only in the version
applied to HEAD.

http://archives.postgresql.org/pgsql-committers/2010-05/msg00058.php
This commit is contained in:
Robert Haas 2010-05-21 17:37:44 +00:00
parent 15ab0e9a60
commit c8518845de
1 changed files with 9 additions and 5 deletions

View File

@ -3,7 +3,7 @@
*
* Copyright (c) 2000-2010, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/bin/psql/command.c,v 1.219 2010/05/08 16:39:51 tgl Exp $
* $PostgreSQL: pgsql/src/bin/psql/command.c,v 1.220 2010/05/21 17:37:44 rhaas Exp $
*/
#include "postgres_fe.h"
#include "command.h"
@ -654,10 +654,14 @@ exec_command(const char *cmd,
size_t len;
/* strip any trailing spaces and semicolons */
len = strlen(opt);
while (len > 0 &&
(isspace((unsigned char) opt[len - 1]) || opt[len - 1] == ';'))
opt[--len] = '\0';
if (opt)
{
len = strlen(opt);
while (len > 0 &&
(isspace((unsigned char) opt[len - 1])
|| opt[len - 1] == ';'))
opt[--len] = '\0';
}
helpSQL(opt, pset.popt.topt.pager);
free(opt);