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2007-08-01 Michael Snyder <msnyder@access-company.com>

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* cli/cli-decode.c (lookup_cmd): Check for null earlier, to
	avoid dereference in lookup_cmd_1.
This commit is contained in:
Michael Snyder
2007-08-01 20:26:31 +00:00
parent c0645fb52f
commit 3cebf8d882
2 changed files with 15 additions and 13 deletions
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25
gdb/cli/cli-decode.c
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@@ -1226,28 +1226,27 @@ lookup_cmd (char **line, struct cmd_list_element *list, char *cmdtype,
int allow_unknown, int ignore_help_classes)
{
struct cmd_list_element *last_list = 0;
struct cmd_list_element *c =
lookup_cmd_1 (line, list, &last_list, ignore_help_classes);
struct cmd_list_element *c;
/* Note: Do not remove trailing whitespace here because this
would be wrong for complete_command. Jim Kingdon */
if (!*line)
error (_("Lack of needed %scommand"), cmdtype);
c = lookup_cmd_1 (line, list, &last_list, ignore_help_classes);
if (!c)
{
if (!allow_unknown)
{
if (!*line)
error (_("Lack of needed %scommand"), cmdtype);
else
{
char *q;
int len = find_command_name_length (*line);
char *q;
int len = find_command_name_length (*line);
q = (char *) alloca (len + 1);
strncpy (q, *line, len);
q[len] = '\0';
undef_cmd_error (cmdtype, q);
}
q = (char *) alloca (len + 1);
strncpy (q, *line, len);
q[len] = '\0';
undef_cmd_error (cmdtype, q);
}
else
return 0;