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Check result of ast_var_assign() calls for memory allocation failure.

Browse Source 
We try to keep the system running even when all available memory is
spent.

Review: https://reviewboard.asterisk.org/r/2734/
........

Merged revisions 396279 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 396287 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@396309 65c4cc65-6c06-0410-ace0-fbb531ad65f3
changes/78/78/1
Walter Doekes 12 years ago
parent c0f302e1e1
commit ccdfe67bf2
9 changed files with 48 additions and 33 deletions
Show Stats Download Patch File Download Diff File

4
apps/app_playback.c
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@ -220,6 +220,10 @@ static int do_say(say_args_t *a, const char *s, const char *options, int depth)
s = x + 1;
ast_debug(2, "value is <%s>\n", s);
n = ast_var_assign("SAY", s);
if (!n) {
ast_log(LOG_ERROR, "Memory allocation error in do_say\n");
return -1;
}
AST_LIST_INSERT_HEAD(&head, n, entries);
/* scan the body, one piece at a time */

5
apps/app_stack.c
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@ -273,8 +273,9 @@ static int frame_set_var(struct ast_channel *chan, struct gosub_stack_frame *fra
}
if (!found) {
variables = ast_var_assign(var, "");
AST_LIST_INSERT_HEAD(&frame->varshead, variables, entries);
if ((variables = ast_var_assign(var, ""))) {
AST_LIST_INSERT_HEAD(&frame->varshead, variables, entries);
}
pbx_builtin_pushvar_helper(chan, var, value);
} else {
pbx_builtin_setvar_helper(chan, var, value);

9
funcs/func_global.c
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@ -282,11 +282,12 @@ static int shared_write(struct ast_channel *chan, const char *cmd, char *data, c
}
AST_LIST_TRAVERSE_SAFE_END;
var = ast_var_assign(args.var, S_OR(value, ""));
AST_LIST_INSERT_HEAD(varshead, var, entries);
if ((var = ast_var_assign(args.var, S_OR(value, "")))) {
AST_LIST_INSERT_HEAD(varshead, var, entries);
sprintf(shared_buffer, "SHARED(%s)", args.var);
ast_channel_publish_varset(chan, shared_buffer, value);
sprintf(shared_buffer, "SHARED(%s)", args.var);
ast_channel_publish_varset(chan, shared_buffer, value);
}
ast_channel_unlock(chan);

6
funcs/func_strings.c
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@ -1698,6 +1698,12 @@ AST_TEST_DEFINE(test_FIELDNUM)
for (i = 0; i < ARRAY_LEN(test_args); i++) {
struct ast_var_t *var = ast_var_assign("FIELDS", test_args[i].fields);
if (!var) {
ast_test_status_update(test, "Out of memory\n");
res = AST_TEST_FAIL;
break;
}
AST_LIST_INSERT_HEAD(ast_channel_varshead(chan), var, entries);
snprintf(expression, sizeof(expression), "${FIELDNUM(%s,%s,%s)}", var->name, test_args[i].delim, test_args[i].field);

13
main/cdr.c
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@ -699,8 +699,8 @@ static int copy_variables(struct varshead *to_list, struct varshead *from_list)
AST_LIST_TRAVERSE(from_list, variables, entries) {
if (variables &&
(var = ast_var_name(variables)) && (val = ast_var_value(variables)) &&
!ast_strlen_zero(var) && !ast_strlen_zero(val)) {
newvariable = ast_var_assign(var, val);
!ast_strlen_zero(var) && !ast_strlen_zero(val) &&
(newvariable = ast_var_assign(var, val))) {
AST_LIST_INSERT_HEAD(to_list, newvariable, entries);
x++;
}
@ -1033,8 +1033,7 @@ static void set_variable(struct varshead *headp, const char *name, const char *v
}
AST_LIST_TRAVERSE_SAFE_END;
if (value) {
newvariable = ast_var_assign(name, value);
if (value && (newvariable = ast_var_assign(name, value))) {
AST_LIST_INSERT_HEAD(headp, newvariable, entries);
}
}
@ -1113,15 +1112,15 @@ static struct ast_cdr *cdr_object_create_public_records(struct cdr_object *cdr)
copy_variables(&cdr_copy->varshead, &it_cdr->party_a.variables);
AST_LIST_TRAVERSE(&it_cdr->party_b.variables, it_var, entries) {
int found = 0;
struct ast_var_t *newvariable;
AST_LIST_TRAVERSE(&cdr_copy->varshead, it_copy_var, entries) {
if (!strcmp(ast_var_name(it_var), ast_var_name(it_copy_var))) {
found = 1;
break;
}
}
if (!found) {
AST_LIST_INSERT_TAIL(&cdr_copy->varshead, ast_var_assign(ast_var_name(it_var),
ast_var_value(it_var)), entries);
if (!found && (newvariable = ast_var_assign(ast_var_name(it_var), ast_var_value(it_var)))) {
AST_LIST_INSERT_TAIL(&cdr_copy->varshead, newvariable, entries);
}
}

6
main/pbx.c
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@ -10911,10 +10911,9 @@ void pbx_builtin_pushvar_helper(struct ast_channel *chan, const char *name, cons
headp = &globals;
}
if (value) {
if (value && (newvariable = ast_var_assign(name, value))) {
if (headp == &globals)
ast_verb(2, "Setting global variable '%s' to '%s'\n", name, value);
newvariable = ast_var_assign(name, value);
AST_LIST_INSERT_HEAD(headp, newvariable, entries);
}
@ -10961,10 +10960,9 @@ int pbx_builtin_setvar_helper(struct ast_channel *chan, const char *name, const
}
AST_LIST_TRAVERSE_SAFE_END;
if (value) {
if (value && (newvariable = ast_var_assign(name, value))) {
if (headp == &globals)
ast_verb(2, "Setting global variable '%s' to '%s'\n", name, value);
newvariable = ast_var_assign(name, value);
AST_LIST_INSERT_HEAD(headp, newvariable, entries);
ast_channel_publish_varset(chan, name, value);

20
pbx/pbx_dundi.c
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@ -607,14 +607,18 @@ static int dundi_lookup_local(struct dundi_result *dr, struct dundi_mapping *map
ast_eid_to_str(dr[anscnt].eid_str, sizeof(dr[anscnt].eid_str), &dr[anscnt].eid);
if (ast_test_flag(&flags, DUNDI_FLAG_EXISTS)) {
AST_LIST_HEAD_INIT_NOLOCK(&headp);
newvariable = ast_var_assign("NUMBER", called_number);
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
newvariable = ast_var_assign("EID", dr[anscnt].eid_str);
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
newvariable = ast_var_assign("SECRET", cursecret);
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
newvariable = ast_var_assign("IPADDR", ipaddr);
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
if ((newvariable = ast_var_assign("NUMBER", called_number))) {
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
}
if ((newvariable = ast_var_assign("EID", dr[anscnt].eid_str))) {
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
}
if ((newvariable = ast_var_assign("SECRET", cursecret))) {
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
}
if ((newvariable = ast_var_assign("IPADDR", ipaddr))) {
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
}
pbx_substitute_variables_varshead(&headp, map->dest, dr[anscnt].dest, sizeof(dr[anscnt].dest));
dr[anscnt].weight = get_mapping_weight(map, &headp);
while ((newvariable = AST_LIST_REMOVE_HEAD(&headp, entries)))

15
pbx/pbx_loopback.c
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@ -91,12 +91,15 @@ static char *loopback_subst(char *buf, int buflen, const char *exten, const char
snprintf(tmp, sizeof(tmp), "%d", priority);
AST_LIST_HEAD_INIT_NOLOCK(&headp);
newvariable = ast_var_assign("EXTEN", exten);
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
newvariable = ast_var_assign("CONTEXT", context);
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
newvariable = ast_var_assign("PRIORITY", tmp);
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
if ((newvariable = ast_var_assign("EXTEN", exten))) {
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
}
if ((newvariable = ast_var_assign("CONTEXT", context))) {
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
}
if ((newvariable = ast_var_assign("PRIORITY", tmp))) {
AST_LIST_INSERT_HEAD(&headp, newvariable, entries);
}
/* Substitute variables */
pbx_substitute_variables_varshead(&headp, data, buf, buflen);
/* free the list */

3
utils/extconf.c
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@ -3164,10 +3164,9 @@ static void pbx_builtin_setvar_helper(struct ast_channel *chan, const char *name
}
}
if (value) {
if (value && (newvariable = ast_var_assign(name, value))) {
if ((option_verbose > 1) && (headp == &globals))
ast_verbose(VERBOSE_PREFIX_2 "Setting global variable '%s' to '%s'\n", name, value);
newvariable = ast_var_assign(name, value);
AST_LIST_INSERT_HEAD(headp, newvariable, entries);
}

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