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vlog: New function vlog_set_levels_from_string_assert().

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Two of the users of vlog_set_levels_from_string() in the tests could have
silently failed, if their arguments were invalid.  This avoids that problem
(and a memory leak).

Found by Coverity.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
This commit is contained in:
Ben Pfaff
2013-01-24 14:17:21 -08:00
parent 146356e958
commit 316bd0f822
3 changed files with 16 additions and 5 deletions
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10
lib/vlog.c
View File

@@ -431,6 +431,16 @@ exit:
return msg;
}
/* Set debugging levels. Abort with an error message if 's' is invalid. */
void
vlog_set_levels_from_string_assert(const char *s)
{
char *error = vlog_set_levels_from_string(s);
if (error) {
ovs_fatal(0, "%s", error);
}
}
/* If 'arg' is null, configure maximum verbosity. Otherwise, sets
* configuration according to 'arg' (see vlog_set_levels_from_string()). */
void

5
lib/vlog.h
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -114,7 +114,8 @@ struct vlog_rate_limit {
enum vlog_level vlog_get_level(const struct vlog_module *, enum vlog_facility);
void vlog_set_levels(struct vlog_module *,
enum vlog_facility, enum vlog_level);
char *vlog_set_levels_from_string(const char *);
char *vlog_set_levels_from_string(const char *) WARN_UNUSED_RESULT;
void vlog_set_levels_from_string_assert(const char *);
char *vlog_get_levels(void);
bool vlog_is_enabled(const struct vlog_module *, enum vlog_level);
bool vlog_should_drop(const struct vlog_module *, enum vlog_level,

6
tests/test-odp.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2011, 2012 Nicira, Inc.
* Copyright (c) 2011, 2012, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -32,7 +32,7 @@ parse_keys(void)
struct ds in;
ds_init(&in);
vlog_set_levels_from_string("odp_util:console:dbg");
vlog_set_levels_from_string_assert("odp_util:console:dbg");
while (!ds_get_test_line(&in, stdin)) {
enum odp_key_fitness fitness;
struct ofpbuf odp_key;
@@ -98,7 +98,7 @@ parse_actions(void)
struct ds in;
ds_init(&in);
vlog_set_levels_from_string("odp_util:console:dbg");
vlog_set_levels_from_string_assert("odp_util:console:dbg");
while (!ds_get_test_line(&in, stdin)) {
struct ofpbuf odp_actions;
struct ds out;