jset \
nfs \
ogg_to_pcm \
+ tal/talloc \
wwviaudio
MODS_EXTERNAL:=$(MODS_EXTERNAL_NO_SRC) $(MODS_EXTERNAL_WITH_SRC)
* RFC822 compliant, don't SEGV and try to return as much useful
* data as possible.
*
+ * Define TAL_USE_TALLOC to use libtalloc as the allocator, otherwise
+ * it will use ccan/tal (usually done on the cmdline, as tal/str will need
+ * it too).
+ *
* Example:
+ * // Given '' outputs 'body'
+ * // Given 'From' outputs ' <from@example.com>'
+ * // Given 'To' outputs ' <to@example.com>'
* char buf[] = "From: <from@example.com>\n"
* "To: <to@example.com>\n\n"
* "body\n";
* struct rfc822_msg *msg;
- * struct bytestring body;
+ * struct bytestring out;
*
* msg = rfc822_start(NULL, buf, sizeof(buf));
- * body = rfc822_body(msg);
- * fwrite(body.ptr, 1, body.len, stdout);
+ * if (!argv[1] || !argv[1][0])
+ * out = rfc822_body(msg);
+ * else {
+ * struct rfc822_header *hdr;
+ * hdr = rfc822_first_header_of_name(msg, argv[1]);
+ * if (!hdr)
+ * exit(1);
+ * out = rfc822_header_unfolded_value(msg, hdr);
+ * }
+ * fwrite(out.ptr, 1, out.len, stdout);
+ * rfc822_free(msg);
*
* License: LGPL (v2.1 or any later version)
*
return 1;
if (strcmp(argv[1], "depends") == 0) {
- printf("ccan/talloc\n");
+#ifdef TAL_USE_TALLOC
+ printf("ccan/tal/talloc\n");
+#else
+ printf("ccan/tal\n");
+#endif
printf("ccan/list\n");
printf("ccan/str\n");
printf("ccan/bytestring\n");
printf("ccan/failtest\n");
printf("ccan/foreach\n");
printf("ccan/array_size\n");
+ printf("ccan/tal/str\n");
return 0;
}
#include <string.h>
#include <ccan/str/str.h>
-#include <ccan/talloc/talloc.h>
#include <ccan/list/list.h>
+#include <stdio.h>
#include <ccan/rfc822/rfc822.h>
+#ifdef TAL_USE_TALLOC
+#include <ccan/tal/talloc/talloc.h>
+#else
+#include <ccan/tal/tal.h>
+#endif
+
#if !HAVE_MEMMEM
void *memmem(const void *haystack, size_t haystacklen,
const void *needle, size_t needlelen)
assert(msg);
if (!list_check(&msg->headers, abortstr))
return NULL;
+ if (!tal_check(msg, abortstr))
+ return NULL;
return (struct rfc822_msg *)msg;
}
struct rfc822_msg *msg;
int i;
- msg = talloc(ctx, struct rfc822_msg);
+ msg = tal(ctx, struct rfc822_msg);
ALLOC_CHECK(msg, NULL);
msg->data = p;
void rfc822_free(struct rfc822_msg *msg)
{
CHECK(msg, ">rfc822_free");
- talloc_free(msg);
+ tal_free(msg);
}
static struct rfc822_header *next_header_cached(struct rfc822_msg *msg,
msg->remainder = eh;
- hi = talloc_zero(msg, struct rfc822_header);
+ hi = talz(msg, struct rfc822_header);
ALLOC_CHECK(hi, NULL);
hi->all = bytestring(h, eh - h);
if (lines <= 1) {
hdr->unfolded = bytestring(raw.ptr, len);
} else {
- char *unfold = talloc_array(msg, char, len);
+ char *unfold = tal_arr(msg, char, len);
char *p = unfold;
ALLOC_CHECK(unfold, bytestring_NULL);
if (!hn) {
unsigned hash = headerhash(hname);
- hn = talloc_zero(msg, struct rfc822_headers_of_name);
+ hn = talz(msg, struct rfc822_headers_of_name);
ALLOC_CHECK(hn, NULL);
hn->name = hname;
* callback is called with a string describing where the failure
* occurred, which can be used to log a more useful error message.
*
+ * Note that tal also has a default function which calls abort() on allocation
+ * failure: see tal_set_backend().
+ *
* Example:
* static void my_handler(const char *str)
* {
* inconsistent, and the function will abort. If the state of the
* structure is valid it returns it unchanged.
*
- * Returns the list head if the list is consistent, NULL if not (it
- * can never return NULL if @abortstr is set).
+ * Returns the @msg if the message is consistent, NULL if not (it can
+ * never return NULL if @abortstr is set).
*/
struct rfc822_msg *rfc822_check(const struct rfc822_msg *msg,
const char *abortstr);
/**
* rfc822_start - start parsing a new rfc822 message
- * @ctx: talloc context to make allocations in
+ * @ctx: tal context to make allocations in (or talloc #ifdef TAL_USE_TALLOC)
* @p: pointer to a buffer containing the message text
* @len: length of the message text
*
#include <stdlib.h>
#include <stdio.h>
-#include <ccan/talloc/talloc.h>
#include <ccan/failtest/failtest_override.h>
#include <ccan/failtest/failtest.h>
/* failtest limitations mean we need these wrappers to test talloc
* failure paths. */
+#ifndef TAL_USE_TALLOC
static void *malloc_wrapper(size_t size)
{
return malloc(size);
{
return realloc(ptr, size);
}
+#endif
#if 0
static void allocation_failure_exit(const char *s)
}
}
+#ifdef TAL_USE_TALLOC
+#include <ccan/tal/talloc/talloc.h>
+#else
+#include <ccan/tal/tal.h>
+#endif
+
+/* Don't abort on allocation failures! */
+static void noabort_wrapper(const char *why)
+{
+ return;
+}
+
void failtest_setup(int argc, char *argv[])
{
failtest_init(argc, argv);
rfc822_set_allocation_failure_handler(allocation_failure_continue);
- talloc_set_allocator(malloc_wrapper, free_wrapper, realloc_wrapper);
+#ifdef TAL_USE_TALLOC
+ /* FIXME: we can't inject allocation failures in talloc! */
+ tal_set_backend(NULL, NULL, NULL, noabort_wrapper);
+#else
+ tal_set_backend(malloc_wrapper, realloc_wrapper, free_wrapper,
+ noabort_wrapper);
+#endif
}
void check_header(struct rfc822_msg *msg,
-#include <ccan/tap/tap.h>
+#include "config.h"
#include <stdlib.h>
#include <string.h>
+#include <assert.h>
#include <signal.h>
#include <errno.h>
#include <ccan/rfc822/rfc822.h>
-#include <ccan/rfc822/rfc822.c>
+#ifdef TAL_USE_TALLOC
+#include <ccan/tal/talloc/talloc.h>
+#else
+#include <ccan/tal/tal.h>
+#endif
-#include "testdata.h"
+static bool should_fail = false;
-static void *failing_malloc(size_t size)
+static void *mayfail_alloc(const void *ctx, size_t size)
{
- return NULL;
+ if (should_fail)
+ return NULL;
+ return tal_arrz(ctx, char, size);
}
+/* Override various tallocation functions. */
+#undef tal
+#undef talz
+#undef tal_arr
+#define tal(ctx, type) mayfail_alloc((ctx), sizeof(type))
+#define talz(ctx, type) mayfail_alloc((ctx), sizeof(type))
+#define tal_arr(ctx, type, num) mayfail_alloc((ctx), sizeof(type)*(num))
+
+#include <ccan/rfc822/rfc822.c>
+
+#include "testdata.h"
+
static void abort_handler(int signum)
{
- ok(1, "Aborted");
+ printf("Aborted");
exit(0);
}
};
int ret;
- plan_tests(2);
-
ret = sigaction(SIGABRT, &sa, NULL);
- ok(ret, "Couldn't install signal handler: %s", strerror(errno));
+ assert(ret == 0);
buf = assemble_msg(&test_msg_1, &len, 0);
msg = rfc822_start(NULL, buf, len);
-
- talloc_set_allocator(failing_malloc, free, realloc);
-
+ should_fail = true;
(void) rfc822_next_header(msg, NULL);
- ok(0, "Didn't get SIGABRT");
-
- rfc822_free(msg);
- talloc_free(buf);
-
- exit(exit_status());
+ /* We should never get here! */
+ abort();
}
test_hdrbody(e, buf, len, exname, crlf);
test_hdrhdr(e, buf, len, exname, crlf);
- talloc_free(buf);
+ tal_free(buf);
}
}
test_hdrbyname(e, buf, len, exname, crlf);
- talloc_free(buf);
+ tal_free(buf);
}
}
len, cmplen);
ok1(len == cmplen);
ok1(memcmp(msg, cmp, cmplen) == 0);
- talloc_free(msg);
+ tal_free(msg);
}
int main(int argc, char *argv[])
char *buf, *p;
int i, n = 0;
- buf = talloc_array(NULL, char, strlen(BEFORE) + strlen(AFTER) + 3*strlen(UNFOLDED) + 2);
+ buf = tal_arr(NULL, char, strlen(BEFORE) + strlen(AFTER) + 3*strlen(UNFOLDED) + 2);
if (!buf)
exit(0);
for (i = -1; i <= FOLD_POINTS; i++) {
msgbuf = fold_and_assemble(i, crlf, truncated);
check_folded_header(msgbuf.ptr, msgbuf.len);
- talloc_free(msgbuf.ptr);
+ tal_free(msgbuf.ptr);
}
}
}
#ifndef RFC822_TESTDATA_H
#define RFC822_TESTDATA_H
-#include <ccan/talloc/talloc.h>
+#include <ccan/tal/str/str.h>
#include <ccan/array_size/array_size.h>
#include <ccan/foreach/foreach.h>
{
const char *nl = crlf ? "\r\n" : "\n";
int nln = crlf ? 2 : 1;
- char *msg, *amsg;
+ char *msg;
size_t n = 0;
int i;
- msg = talloc_strdup(NULL, "");
+ msg = tal_strdup(NULL, "");
if (!msg)
return NULL;
for (i = 0; i < e->nhdrs; i++) {
- amsg = talloc_asprintf_append(msg, "%s:%s%s", e->hdrs[i].name,
- e->hdrs[i].val, nl);
- if (!amsg) {
- talloc_free(msg);
+ if (!tal_append_fmt(&msg, "%s:%s%s", e->hdrs[i].name,
+ e->hdrs[i].val, nl)) {
+ tal_free(msg);
return NULL;
}
- msg = amsg;
n += strlen(e->hdrs[i].name) + strlen(e->hdrs[i].val) + 1 + nln;
}
- amsg = talloc_asprintf_append(msg, "%s%s", nl, e->body);
- if (!amsg) {
- talloc_free(msg);
+ if (!tal_append_fmt(&msg, "%s%s", nl, e->body)) {
+ tal_free(msg);
return NULL;
}
- msg = amsg;
n += strlen(e->body) + nln;
*len = n;
return msg;
if (strcmp(argv[1], "depends") == 0) {
printf("ccan/str\n");
+#ifdef TAL_USE_TALLOC
+ printf("ccan/tal/talloc\n");
+#else
printf("ccan/tal\n");
+#endif
printf("ccan/take\n");
return 0;
}
#include <unistd.h>
#include <stdio.h>
#include <ccan/str/str.h>
-#include <ccan/tal/tal.h>
#include <ccan/take/take.h>
char *tal_strdup(const tal_t *ctx, const char *p)
/* Licensed under BSD-MIT - see LICENSE file for details */
#ifndef CCAN_STR_TAL_H
#define CCAN_STR_TAL_H
+#ifdef TAL_USE_TALLOC
+#include <ccan/tal/talloc/talloc.h>
+#else
#include <ccan/tal/tal.h>
-#include <ccan/tal/tal.h>
+#endif
#include <string.h>
#include <stdbool.h>
--- /dev/null
+/* tal/talloc can't implement tal_first/tal_next. */
+#ifdef TAL_USE_TALLOC
+static inline bool no_children(const void *ctx)
+{
+ return talloc_total_blocks(ctx) == 1;
+}
+
+static inline bool single_child(const void *ctx, const void *child)
+{
+ return talloc_total_blocks(ctx) == 2 && tal_parent(child) == ctx;
+}
+#else
+static inline bool no_children(const void *ctx)
+{
+ return !tal_first(ctx);
+}
+
+static inline bool single_child(const void *ctx, const void *child)
+{
+ return tal_first(ctx) == child && !tal_next(ctx, child);
+}
+#endif
#include <ccan/tal/str/str.h>
#include <ccan/tal/str/str.c>
#include <ccan/tap/tap.h>
+#include "helper.h"
int main(void)
{
ok1(tal_parent(c) == parent);
tal_free(c);
+#ifdef TAL_USE_TALLOC
+ c = tal_talloc_typechk_(parent, char *);
+#else
c = tal_typechk_(parent, char *);
+#endif
c = tal_dup(parent, char, "hello", 6, 0);
ok1(strcmp(c, "hello") == 0);
ok1(strcmp(tal_name(c), "char[]") == 0);
c = tal_strcat(parent, take(c), " again");
ok1(strcmp(c, "hello there again") == 0);
ok1(tal_parent(c) == parent);
- ok1(tal_first(parent) == c && !tal_next(parent, c));
+ ok1(single_child(parent, c));
c = tal_strcat(parent, "And ", take(c));
ok1(strcmp(c, "And hello there again") == 0);
ok1(tal_parent(c) == parent);
- ok1(tal_first(parent) == c && !tal_next(parent, c));
+ ok1(single_child(parent, c));
/* NULL pass through works... */
c = tal_strcat(parent, take(NULL), take(c));
ok1(!c);
- ok1(!tal_first(parent));
+ ok1(no_children(parent));
c = tal_strcat(parent, take(tal_strdup(parent, "hi")),
take(NULL));
ok1(!c);
- ok1(!tal_first(parent));
+ ok1(no_children(parent));
c = tal_strcat(parent, take(NULL), take(NULL));
ok1(!c);
- ok1(!tal_first(parent));
+ ok1(no_children(parent));
/* Appending formatted strings. */
c = tal_strdup(parent, "hi");
#include <ccan/tal/str/str.h>
#include <ccan/tal/str/str.c>
#include <ccan/tap/tap.h>
+#include "helper.h"
static bool find_parent(tal_t *child, tal_t *parent)
{
tal_free(a);
/* No leaks! */
- ok1(!tal_first(ctx));
+ ok1(no_children(ctx));
/* NULL arg with take means always fail. */
ok1(tal_strreg(ctx, take(NULL), "((hello|goodbye) world)",
ok1(streq(b, "hello"));
ok1(tal_parent(b) == ctx);
tal_free(b);
- ok1(tal_first(ctx) == NULL);
+ ok1(no_children(ctx));
/* Take regex. */
a = tal_strdup(ctx, "([a-z]+)");
ok1(streq(b, "hello"));
ok1(tal_parent(b) == ctx);
tal_free(b);
- ok1(tal_first(ctx) == NULL);
+ ok1(no_children(ctx));
/* Take both. */
a = tal_strdup(ctx, "([a-z]+)");
ok1(streq(b, "hello"));
ok1(tal_parent(b) == ctx);
tal_free(b);
- ok1(tal_first(ctx) == NULL);
+ ok1(no_children(ctx));
/* ... even if we fail to match. */
a = tal_strdup(ctx, "([a-z]+)");
ok1(tal_strreg(ctx, take(tal_strdup(ctx, "HELLO WORLD!")),
take(a), &b, invalid) == false);
- ok1(tal_first(ctx) == NULL);
+ ok1(no_children(ctx));
tal_free(ctx);
return exit_status();
#include <ccan/tal/str/str.h>
#include <ccan/tal/str/str.c>
#include <ccan/tap/tap.h>
+#include "helper.h"
int main(void)
{
ok1(tal_parent(c) == parent);
/* No leftover allocations. */
tal_free(c);
- ok1(tal_first(parent) == NULL);
+ ok1(no_children(parent));
tal_free(parent);
ok1(!taken_any());
#include <stdio.h>
#include <ccan/tal/str/str.c>
#include <ccan/tap/tap.h>
+#include "helper.h"
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
ok1(tal_check(ctx, NULL));
tal_free(split);
/* Previous free should get rid of str */
- ok1(!tal_first(ctx));
+ ok1(no_children(ctx));
/* tal_strsplit take delims */
str = tal_strdup(ctx, " ");
ok1(tal_check(ctx, NULL));
tal_free(split);
/* str is gone... */
- ok1(!tal_first(ctx));
+ ok1(no_children(ctx));
/* tal_strsplit takes both. */
split = tal_strsplit(ctx, take(tal_strdup(NULL, "hello world")),
ok1(tal_check(ctx, NULL));
tal_free(split);
/* temp allocs are gone... */
- ok1(!tal_first(ctx));
+ ok1(no_children(ctx));
/* tal_strjoin passthrough taken NULLs OK. */
ok1(tal_strjoin(ctx, take(NULL), "", STR_TRAIL) == NULL);
ok1(!strcmp(str, "hello there world"));
ok1(tal_parent(str) == ctx);
/* split is gone... */
- ok1(tal_first(ctx) == str && !tal_next(ctx, str));
+ ok1(single_child(ctx, str));
tal_free(str);
- ok1(!tal_first(ctx));
+ ok1(no_children(ctx));
/* tal_strjoin take delim */
split = tal_strsplit(ctx, "hello world", " ", STR_EMPTY_OK);
ok1(tal_parent(str) == ctx);
tal_free(split);
/* tmp alloc is gone, str is only remainder. */
- ok1(tal_first(ctx) == str && !tal_next(ctx, str));
+ ok1(single_child(ctx, str));
tal_free(str);
- ok1(!tal_first(ctx));
+ ok1(no_children(ctx));
/* tal_strjoin take both. */
str = tal_strjoin(ctx, take(tal_strsplit(ctx, "hello world", " ",
ok1(!strcmp(str, "hello there world"));
ok1(tal_parent(str) == ctx);
/* tmp allocs are gone, str is only remainder. */
- ok1(tal_first(ctx) == str && !tal_next(ctx, str));
+ ok1(single_child(ctx, str));
tal_free(str);
- ok1(!tal_first(ctx));
+ ok1(no_children(ctx));
tal_free(ctx);
return exit_status();
--- /dev/null
+../../../licenses/LGPL-3
\ No newline at end of file
--- /dev/null
+#include <stdio.h>
+#include <string.h>
+#include "config.h"
+
+/**
+ * tal/talloc - an implementation of the tal interface in terms of talloc.
+ *
+ * Tal and talloc are both hierarchical allocators, but have different APIs.
+ * The tal API is mostly a subset of talloc, but if your project already
+ * uses talloc then having both tal and talloc pointers is confusing, and
+ * a waste of resources.
+ *
+ * The standard convention to tell ccan modules to use this instead of
+ * ccan/tal is to define TAL_USE_TALLOC, usually on the commandline.
+ *
+ * Bugs:
+ * tal_first() and tal_next() can't be implemented.
+ * tal_set_backend() can only change the error function.
+ *
+ * License: LGPL
+ */
+int main(int argc, char *argv[])
+{
+ if (argc != 2)
+ return 1;
+
+ if (strcmp(argv[1], "depends") == 0) {
+ printf("ccan/take\n");
+ printf("ccan/typesafe_cb\n");
+ printf("talloc\n");
+ return 0;
+ }
+
+ if (strcmp(argv[1], "libs") == 0) {
+ printf("talloc\n");
+ return 0;
+ }
+
+ return 1;
+}
--- /dev/null
+/* Licensed under LGPL - see LICENSE file for details */
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/take/take.h>
+#include <errno.h>
+#include <assert.h>
+
+static void (*errorfn)(const char *msg) = (void *)abort;
+
+static void COLD call_error(const char *msg)
+{
+ errorfn(msg);
+}
+
+static void *error_on_null(void *p, const char *msg)
+{
+ if (!p)
+ call_error(msg);
+ return p;
+}
+
+void *tal_talloc_(const tal_t *ctx, size_t bytes, bool clear,
+ const char *label)
+{
+ void *ret;
+
+ if (clear)
+ ret = _talloc_zero(ctx, bytes, label);
+ else
+ ret = talloc_named_const(ctx, bytes, label);
+
+ return error_on_null(ret, "allocation failure");
+}
+
+void *tal_talloc_arr_(const tal_t *ctx, size_t bytes, size_t count, bool clear,
+ const char *label)
+{
+ void *ret;
+
+ if (clear)
+ ret = _talloc_zero_array(ctx, bytes, count, label);
+ else
+ ret = _talloc_array(ctx, bytes, count, label);
+
+ return error_on_null(ret, "array allocation failure");
+}
+
+void *tal_talloc_free_(const tal_t *ctx)
+{
+ int saved_errno = errno;
+ talloc_free((void *)ctx);
+ errno = saved_errno;
+ return NULL;
+}
+
+bool tal_talloc_set_name_(tal_t *ctx, const char *name, bool literal)
+{
+ if (!literal) {
+ name = talloc_strdup(ctx, name);
+ if (!name) {
+ call_error("set_name allocation failure");
+ return false;
+ }
+ }
+ talloc_set_name_const(ctx, name);
+ return true;
+}
+
+const char *tal_talloc_name_(const tal_t *ctx)
+{
+ const char *p = talloc_get_name(ctx);
+ if (p && unlikely(strcmp(p, "UNNAMED") == 0))
+ p = NULL;
+ return p;
+}
+
+static bool adjust_size(size_t *size, size_t count)
+{
+ /* Multiplication wrap */
+ if (count && unlikely(*size * count / *size != count))
+ goto overflow;
+
+ *size *= count;
+
+ /* Make sure we don't wrap adding header. */
+ if (*size + 1024 < 1024)
+ goto overflow;
+ return true;
+overflow:
+ call_error("allocation size overflow");
+ return false;
+}
+
+void *tal_talloc_dup_(const tal_t *ctx, const void *p, size_t size,
+ size_t n, size_t extra, const char *label)
+{
+ void *ret;
+ size_t nbytes = size;
+
+ if (!adjust_size(&nbytes, n)) {
+ if (taken(p))
+ tal_free(p);
+ return NULL;
+ }
+
+ /* Beware addition overflow! */
+ if (n + extra < n) {
+ call_error("dup size overflow");
+ if (taken(p))
+ tal_free(p);
+ return NULL;
+ }
+
+ if (taken(p)) {
+ if (unlikely(!p))
+ return NULL;
+ if (unlikely(!tal_talloc_resize_((void **)&p, size, n + extra)))
+ return tal_free(p);
+ if (unlikely(!tal_steal(ctx, p)))
+ return tal_free(p);
+ return (void *)p;
+ }
+
+ ret = tal_talloc_arr_(ctx, size, n + extra, false, label);
+ if (ret)
+ memcpy(ret, p, nbytes);
+ return ret;
+}
+
+bool tal_talloc_resize_(tal_t **ctxp, size_t size, size_t count)
+{
+ tal_t *newp;
+
+ if (unlikely(count == 0)) {
+ /* Don't free it! */
+ newp = talloc_size(talloc_parent(*ctxp), 0);
+ if (!newp) {
+ call_error("Resize failure");
+ return false;
+ }
+ talloc_free(*ctxp);
+ *ctxp = newp;
+ return true;
+ }
+ newp = _talloc_realloc_array(NULL, *ctxp, size, count, NULL);
+ if (!newp) {
+ call_error("Resize failure");
+ return false;
+ }
+ *ctxp = newp;
+ return true;
+}
+
+bool tal_talloc_expand_(tal_t **ctxp, const void *src, size_t size, size_t count)
+{
+ bool ret = false;
+ size_t old_count = talloc_get_size(*ctxp) / size;
+
+ /* Check for additive overflow */
+ if (old_count + count < count) {
+ call_error("dup size overflow");
+ goto out;
+ }
+
+ /* Don't point src inside thing we're expanding! */
+ assert(src < *ctxp
+ || (char *)src >= (char *)(*ctxp) + (size * old_count));
+
+ if (!tal_talloc_resize_(ctxp, size, old_count + count))
+ goto out;
+
+ memcpy((char *)*ctxp + size * old_count, src, count * size);
+ ret = true;
+
+out:
+ if (taken(src))
+ tal_free(src);
+ return ret;
+}
+
+/* Sucky inline hash table implementation, to avoid deps. */
+#define HTABLE_BITS 10
+struct destructor {
+ struct destructor *next;
+ const tal_t *ctx;
+ void (*destroy)(void *me);
+};
+static struct destructor *destr_hash[1 << HTABLE_BITS];
+
+static unsigned int hash_ptr(const void *p)
+{
+ unsigned long h = (unsigned long)p / sizeof(void *);
+
+ return (h ^ (h >> HTABLE_BITS)) & ((1 << HTABLE_BITS) - 1);
+}
+
+static int tal_talloc_destroy(const tal_t *ctx)
+{
+ struct destructor **d = &destr_hash[hash_ptr(ctx)];
+ while (*d) {
+ if ((*d)->ctx == ctx) {
+ struct destructor *this = *d;
+ this->destroy((void *)ctx);
+ *d = this->next;
+ talloc_free(this);
+ }
+ }
+ return 0;
+}
+
+bool tal_talloc_add_destructor_(const tal_t *ctx, void (*destroy)(void *me))
+{
+ struct destructor *d = talloc(ctx, struct destructor);
+ if (!d)
+ return false;
+
+ d->next = destr_hash[hash_ptr(ctx)];
+ d->ctx = ctx;
+ d->destroy = destroy;
+ destr_hash[hash_ptr(ctx)] = d;
+ talloc_set_destructor(ctx, tal_talloc_destroy);
+ return true;
+}
+
+bool tal_talloc_del_destructor_(const tal_t *ctx, void (*destroy)(void *me))
+{
+ struct destructor **d = &destr_hash[hash_ptr(ctx)];
+
+ while (*d) {
+ if ((*d)->ctx == ctx && (*d)->destroy == destroy) {
+ struct destructor *this = *d;
+ *d = this->next;
+ talloc_free(this);
+ return true;
+ }
+ d = &(*d)->next;
+ }
+ return false;
+}
+
+void tal_talloc_set_backend_(void *(*alloc_fn)(size_t size),
+ void *(*resize_fn)(void *, size_t size),
+ void (*free_fn)(void *),
+ void (*error_fn)(const char *msg))
+{
+ assert(!alloc_fn);
+ assert(!resize_fn);
+ assert(!free_fn);
+ errorfn = error_fn;
+ talloc_set_abort_fn(error_fn);
+}
+
+bool tal_talloc_check_(const tal_t *ctx, const char *errorstr)
+{
+ /* We can't really check, but this iterates (and may abort). */
+ return !ctx || talloc_total_blocks(ctx) >= 1;
+}
--- /dev/null
+/* Licensed under LGPL - see LICENSE file for details */
+#ifndef CCAN_TAL_TALLOC_H
+#define CCAN_TAL_TALLOC_H
+#include "config.h"
+#include <ccan/compiler/compiler.h>
+#include <ccan/likely/likely.h>
+#include <ccan/typesafe_cb/typesafe_cb.h>
+#include <ccan/str/str.h>
+#include <talloc.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdarg.h>
+
+/**
+ * tal_t - convenient alias for void to mark tal pointers.
+ *
+ * Since any pointer can be a tal-allocated pointer, it's often
+ * useful to use this typedef to mark them explicitly.
+ */
+typedef TALLOC_CTX tal_t;
+
+/**
+ * tal - basic allocator function
+ * @ctx: NULL, or tal allocated object to be parent.
+ * @type: the type to allocate.
+ *
+ * Allocates a specific type, with a given parent context. The name
+ * of the object is a string of the type, but if CCAN_TAL_DEBUG is
+ * defined it also contains the file and line which allocated it.
+ *
+ * Example:
+ * int *p = tal(NULL, int);
+ * *p = 1;
+ */
+#define tal(ctx, type) \
+ ((type *)tal_talloc_((ctx), sizeof(type), false, \
+ TAL_LABEL(type, "")))
+
+/**
+ * talz - zeroing allocator function
+ * @ctx: NULL, or tal allocated object to be parent.
+ * @type: the type to allocate.
+ *
+ * Equivalent to tal() followed by memset() to zero.
+ *
+ * Example:
+ * p = talz(NULL, int);
+ * assert(*p == 0);
+ */
+#define talz(ctx, type) \
+ ((type *)tal_talloc_((ctx), sizeof(type), true, \
+ TAL_LABEL(type, "")))
+
+/**
+ * tal_free - free a tal-allocated pointer.
+ * @p: NULL, or tal allocated object to free.
+ *
+ * This calls the destructors for p (if any), then does the same for all its
+ * children (recursively) before finally freeing the memory. It returns
+ * NULL, for convenience.
+ *
+ * Note: errno is preserved by this call.
+ *
+ * Example:
+ * p = tal_free(p);
+ */
+#define tal_free(p) tal_talloc_free_(p)
+
+/**
+ * tal_arr - allocate an array of objects.
+ * @ctx: NULL, or tal allocated object to be parent.
+ * @type: the type to allocate.
+ * @count: the number to allocate.
+ *
+ * Note that an object allocated with tal_arr() has a length property;
+ * see tal_count().
+ *
+ * Example:
+ * p = tal_arr(NULL, int, 2);
+ * p[0] = 0;
+ * p[1] = 1;
+ */
+#define tal_arr(ctx, type, count) \
+ ((type *)tal_talloc_arr_((ctx), sizeof(type), (count), false, \
+ TAL_LABEL(type, "[]")))
+
+/**
+ * tal_arrz - allocate an array of zeroed objects.
+ * @ctx: NULL, or tal allocated object to be parent.
+ * @type: the type to allocate.
+ * @count: the number to allocate.
+ *
+ * Note that an object allocated with tal_arrz() has a length property;
+ * see tal_count().
+ *
+ * Example:
+ * p = tal_arrz(NULL, int, 2);
+ * assert(p[0] == 0 && p[1] == 0);
+ */
+#define tal_arrz(ctx, type, count) \
+ ((type *)tal_talloc_arr_((ctx), sizeof(type), (count), true, \
+ TAL_LABEL(type, "[]")))
+
+/**
+ * tal_resize - enlarge or reduce a tal_arr[z].
+ * @p: A pointer to the tal allocated array to resize.
+ * @count: the number to allocate.
+ *
+ * This returns true on success (and may move *@p), or false on failure.
+ * If @p has a length property, it is updated on success.
+ *
+ * Example:
+ * tal_resize(&p, 100);
+ */
+#define tal_resize(p, count) \
+ tal_talloc_resize_((void **)(p), sizeof**(p), (count))
+
+/**
+ * tal_steal - change the parent of a tal-allocated pointer.
+ * @ctx: The new parent.
+ * @ptr: The tal allocated object to move.
+ *
+ * This may need to perform an allocation, in which case it may fail; thus
+ * it can return NULL, otherwise returns @ptr.
+ */
+#define tal_steal(ctx, ptr) talloc_steal((ctx), (ptr))
+
+/**
+ * tal_add_destructor - add a callback function when this context is destroyed.
+ * @ptr: The tal allocated object.
+ * @function: the function to call before it's freed.
+ *
+ * This is a more convenient form of tal_add_notifier(@ptr,
+ * TAL_NOTIFY_FREE, ...), in that the function prototype takes only @ptr.
+ */
+#define tal_add_destructor(ptr, function) \
+ tal_talloc_add_destructor_((ptr), typesafe_cb(void, void *, \
+ (function), (ptr)))
+
+/**
+ * tal_del_destructor - remove a destructor callback function.
+ * @ptr: The tal allocated object.
+ * @function: the function to call before it's freed.
+ *
+ * If @function has not been successfully added as a destructor, this returns
+ * false.
+ *
+ * Note: you can't add more than one destructor with the talloc backend!
+ */
+#define tal_del_destructor(ptr, function) \
+ tal_talloc_del_destructor_((ptr), typesafe_cb(void, void *, \
+ (function), (ptr)))
+
+/**
+ * tal_set_name - attach a name to a tal pointer.
+ * @ptr: The tal allocated object.
+ * @name: The name to use.
+ *
+ * The name is copied, unless we're certain it's a string literal.
+ */
+#define tal_set_name(ptr, name) \
+ tal_talloc_set_name_((ptr), (name), TAL_TALLOC_IS_LITERAL(name))
+
+/**
+ * tal_name - get the name for a tal pointer.
+ * @ptr: The tal allocated object.
+ *
+ * Returns NULL if no name has been set.
+ */
+#define tal_name(ptr) \
+ tal_talloc_name_(ptr)
+
+/**
+ * tal_count - get the count of objects in a tal_arr.
+ * @ptr: The tal allocated object array.
+ */
+#define tal_count(ptr) talloc_array_length(ptr)
+
+/**
+ * tal_parent - get the parent of a tal object.
+ * @ctx: The tal allocated object.
+ *
+ * Returns the parent, which may be NULL. Returns NULL if @ctx is NULL.
+ */
+#define tal_parent(ctx) talloc_parent(ctx)
+
+/**
+ * tal_dup - duplicate an array.
+ * @ctx: The tal allocated object to be parent of the result (may be NULL).
+ * @type: the type (should match type of @p!)
+ * @p: the array to copy (or resized & reparented if take())
+ * @n: the number of sizeof(type) entries to copy.
+ * @extra: the number of extra sizeof(type) entries to allocate.
+ */
+#define tal_dup(ctx, type, p, n, extra) \
+ ((type *)tal_talloc_dup_((ctx), tal_talloc_typechk_(p, type *), \
+ sizeof(type), (n), (extra), \
+ TAL_LABEL(type, "[]")))
+
+
+/**
+ * tal_set_backend - set the allocation or error functions to use
+ * @alloc_fn: NULL
+ * @resize_fn: NULL
+ * @free_fn: NULL
+ * @error_fn: called on errors or NULL (default is abort)
+ *
+ * The defaults are set up so tal functions never return NULL, but you
+ * can override error_fn to change that. error_fn can return, and is
+ * called if malloc or realloc fail.
+ */
+#define tal_set_backend(alloc_fn, resize_fn, free_fn, error_fn) \
+ tal_talloc_set_backend_((alloc_fn), (resize_fn), (free_fn), (error_fn))
+
+/**
+ * tal_expand - expand a tal array with contents.
+ * @a1p: a pointer to the tal array to expand.
+ * @a2: the second array (can be take()).
+ * @num2: the number of elements in the second array.
+ *
+ * Note that *@a1 and @a2 should be the same type. tal_count(@a1) will
+ * be increased by @num2.
+ *
+ * Example:
+ * int *arr1 = tal_arrz(NULL, int, 2);
+ * int arr2[2] = { 1, 3 };
+ *
+ * tal_expand(&arr1, arr2, 2);
+ * assert(tal_count(arr1) == 4);
+ * assert(arr1[2] == 1);
+ * assert(arr1[3] == 3);
+ */
+#define tal_expand(a1p, a2, num2) \
+ tal_talloc_expand_((void **)(a1p), (a2), sizeof**(a1p), \
+ (num2) + 0*sizeof(*(a1p) == (a2)))
+
+
+/**
+ * tal_check - set the allocation or error functions to use
+ * @ctx: a tal context, or NULL.
+ * @errorstr: a string to prepend calls to error_fn, or NULL.
+ *
+ * This sanity-checks a tal tree (unless NDEBUG is defined, in which case
+ * it simply returns true). If errorstr is not null, error_fn is called
+ * when a problem is found, otherwise it is not.
+ */
+#define tal_check(ctx, errorstr) \
+ tal_talloc_check_((ctx), (errorstr))
+
+
+/* Internal support functions */
+#ifndef TAL_TALLOC_LABEL
+#ifdef CCAN_TAL_NO_LABELS
+#define TAL_LABEL(type, arr) NULL
+#else
+#ifdef CCAN_TAL_DEBUG
+#define TAL_LABEL(type, arr) \
+ __FILE__ ":" stringify(__LINE__) ":" stringify(type) arr
+#else
+#define TAL_LABEL(type, arr) stringify(type) arr
+#endif /* CCAN_TAL_DEBUG */
+#endif
+#endif
+
+#if HAVE_BUILTIN_CONSTANT_P
+#define TAL_TALLOC_IS_LITERAL(str) __builtin_constant_p(str)
+#else
+#define TAL_TALLOC_IS_LITERAL(str) false
+#endif
+
+#if HAVE_TYPEOF && HAVE_STATEMENT_EXPR
+/* Careful: ptr can be const foo *, ptype is foo *. Also, ptr could
+ * be an array, eg "hello". */
+#define tal_talloc_typechk_(ptr, ptype) ({ __typeof__((ptr)+0) _p = (ptype)(ptr); _p; })
+#else
+#define tal_talloc_typechk_(ptr, ptype) (ptr)
+#endif
+
+void *tal_talloc_(const tal_t *ctx, size_t bytes, bool clear,
+ const char *label);
+void *tal_talloc_arr_(const tal_t *ctx, size_t bytes, size_t count, bool clear,
+ const char *label);
+void *tal_talloc_free_(const tal_t *ctx);
+const char *tal_talloc_name_(const tal_t *ctx);
+bool tal_talloc_set_name_(tal_t *ctx, const char *name, bool literal);
+
+bool tal_talloc_add_destructor_(const tal_t *ctx, void (*destroy)(void *me));
+bool tal_talloc_del_destructor_(const tal_t *ctx, void (*destroy)(void *me));
+
+/* ccan/tal/str uses this, so define it. */
+#define tal_dup_(ctx, p, size, n, extra, add_count, label) \
+ tal_talloc_dup_((ctx), (p), (size), (n), (extra), (label))
+void *tal_talloc_dup_(const tal_t *ctx, const void *p, size_t size,
+ size_t n, size_t extra, const char *label);
+
+bool tal_talloc_resize_(tal_t **ctxp, size_t size, size_t count);
+bool tal_talloc_expand_(tal_t **ctxp, const void *src, size_t size, size_t count);
+bool tal_talloc_check_(const tal_t *ctx, const char *errorstr);
+
+void tal_talloc_set_backend_(void *(*alloc_fn)(size_t size),
+ void *(*resize_fn)(void *, size_t size),
+ void (*free_fn)(void *),
+ void (*error_fn)(const char *msg));
+
+#endif /* CCAN_TAL_TALLOC_H */
--- /dev/null
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+ char *parent, *c[4];
+ int i;
+
+ plan_tests(11);
+
+ parent = tal(NULL, char);
+ ok1(parent);
+
+ /* Zeroing allocations. */
+ for (i = 0; i < 4; i++) {
+ c[i] = talz(parent, char);
+ ok1(*c[i] == '\0');
+ tal_free(c[i]);
+ }
+
+ /* Array allocation. */
+ for (i = 0; i < 4; i++) {
+ c[i] = tal_arr(parent, char, 4);
+ strcpy(c[i], "abc");
+ tal_free(c[i]);
+ }
+
+ /* Zeroing array allocation. */
+ for (i = 0; i < 4; i++) {
+ c[i] = tal_arrz(parent, char, 4);
+ ok1(!c[i][0] && !c[i][1] && !c[i][2] && !c[i][3]);
+ strcpy(c[i], "abc");
+ tal_free(c[i]);
+ }
+
+ /* Resizing. */
+ c[0] = tal_arrz(parent, char, 4);
+ ok1(tal_resize(&c[0], 6));
+ strcpy(c[0], "hello");
+ tal_free(c[0]);
+ ok1(talloc_total_blocks(parent) == 1);
+ tal_free(parent);
+
+ return exit_status();
+}
--- /dev/null
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+ char *p1, *p2;
+
+ plan_tests(12);
+
+ p1 = tal(NULL, char);
+ ok1(p1);
+ ok1(tal_count(p1) == 1);
+
+ p2 = tal_arr(p1, char, 1);
+ ok1(p2);
+ ok1(tal_count(p2) == 1);
+ ok1(tal_resize(&p2, 2));
+ ok1(tal_count(p2) == 2);
+ ok1(tal_check(NULL, NULL));
+ tal_free(p2);
+
+ p2 = tal_arrz(p1, char, 7);
+ ok1(p2);
+ ok1(tal_count(p2) == 7);
+ ok1(tal_resize(&p2, 0));
+ ok1(tal_count(p2) == 0);
+ ok1(tal_check(NULL, NULL));
+ tal_free(p2);
+ tal_free(p1);
+
+ return exit_status();
+}
--- /dev/null
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+
+static char *parent, *child;
+static int destroy_count;
+
+/* Parent gets destroyed first. */
+static void destroy_parent(char *p)
+{
+ ok1(p == parent);
+ ok1(destroy_count == 0);
+ /* Can still access child. */
+ *child = '1';
+ destroy_count++;
+}
+
+static void destroy_child(char *p)
+{
+ ok1(p == child);
+ ok1(destroy_count == 1);
+ /* Can still access parent (though destructor has been called). */
+ *parent = '1';
+ destroy_count++;
+}
+
+static void destroy_inc(char *p)
+{
+ destroy_count++;
+}
+
+int main(void)
+{
+ char *child2;
+
+ plan_tests(18);
+
+ destroy_count = 0;
+ parent = tal(NULL, char);
+ child = tal(parent, char);
+ ok1(tal_add_destructor(parent, destroy_parent));
+ ok1(tal_add_destructor(child, destroy_child));
+ tal_free(parent);
+ ok1(destroy_count == 2);
+
+ destroy_count = 0;
+ parent = tal(NULL, char);
+ child = tal(parent, char);
+ ok1(tal_add_destructor(parent, destroy_parent));
+ ok1(tal_add_destructor(child, destroy_child));
+ ok1(tal_del_destructor(child, destroy_child));
+ tal_free(parent);
+ ok1(destroy_count == 1);
+
+ destroy_count = 0;
+ parent = tal(NULL, char);
+ child = tal(parent, char);
+ child2 = tal(parent, char);
+ ok1(tal_add_destructor(parent, destroy_inc));
+ ok1(tal_add_destructor(parent, destroy_inc));
+ ok1(tal_add_destructor(child, destroy_inc));
+ ok1(tal_add_destructor(child2, destroy_inc));
+ tal_free(parent);
+ ok1(destroy_count == 4);
+
+ return exit_status();
+}
--- /dev/null
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+ int *a;
+ const int arr[] = { 1, 2 };
+
+ plan_tests(14);
+ talloc_enable_null_tracking_no_autofree();
+
+ a = tal_arrz(NULL, int, 1);
+ ok1(a);
+
+ ok1(tal_expand(&a, arr, 2));
+ ok1(tal_count(a) == 3);
+ ok1(a[0] == 0);
+ ok1(a[1] == 1);
+ ok1(a[2] == 2);
+
+ ok1(tal_expand(&a, take(tal_arrz(NULL, int, 1)), 1));
+ ok1(tal_count(a) == 4);
+ ok1(a[0] == 0);
+ ok1(a[1] == 1);
+ ok1(a[2] == 2);
+ ok1(a[3] == 0);
+ ok1(talloc_total_blocks(NULL) == 2);
+ ok1(talloc_total_blocks(a) == 1);
+
+ tal_free(a);
+
+ talloc_disable_null_tracking();
+ return exit_status();
+}
--- /dev/null
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+#include <errno.h>
+
+static void destroy_errno(char *p)
+{
+ errno = ENOENT;
+}
+
+int main(void)
+{
+ char *p;
+
+ plan_tests(2);
+
+ p = tal(NULL, char);
+ ok1(tal_add_destructor(p, destroy_errno));
+
+ /* Errno save/restored across free. */
+ errno = EINVAL;
+ tal_free(p);
+ ok1(errno == EINVAL);
+
+ return exit_status();
+}
--- /dev/null
+#define CCAN_TAL_DEBUG
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+ int *p;
+ char name[] = "test name";
+
+ plan_tests(6);
+
+ p = tal(NULL, int);
+ ok1(strcmp(tal_name(p), __FILE__ ":13:int") == 0);
+
+ tal_set_name(p, "some literal");
+ ok1(strcmp(tal_name(p), "some literal") == 0);
+
+ tal_set_name(p, name);
+ ok1(strcmp(tal_name(p), name) == 0);
+ /* You can't reuse my pointer though! */
+ ok1(tal_name(p) != name);
+
+ tal_set_name(p, "some other literal");
+ ok1(strcmp(tal_name(p), "some other literal") == 0);
+
+ tal_free(p);
+
+ p = tal_arr(NULL, int, 2);
+ ok1(strcmp(tal_name(p), __FILE__ ":29:int[]") == 0);
+ tal_free(p);
+
+ return exit_status();
+}
--- /dev/null
+#define CCAN_TAL_NO_LABELS
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+ int *p;
+ char name[] = "test name";
+
+ plan_tests(5);
+
+ p = tal(NULL, int);
+ ok1(tal_name(p) == NULL);
+
+ tal_set_name(p, "some literal");
+ ok1(strcmp(tal_name(p), "some literal") == 0);
+
+ tal_set_name(p, name);
+ ok1(strcmp(tal_name(p), name) == 0);
+ /* You can't reuse my pointer though! */
+ ok1(tal_name(p) != name);
+
+ tal_set_name(p, "some other literal");
+ ok1(strcmp(tal_name(p), "some other literal") == 0);
+
+ tal_free(p);
+
+ return exit_status();
+}
--- /dev/null
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+ int *p;
+ char name[] = "test name";
+
+ plan_tests(6);
+
+ p = tal(NULL, int);
+ ok1(strcmp(tal_name(p), "int") == 0);
+
+ tal_set_name(p, "some literal");
+ ok1(strcmp(tal_name(p), "some literal") == 0);
+
+ tal_set_name(p, name);
+ ok1(strcmp(tal_name(p), name) == 0);
+ /* You can't reuse my pointer though! */
+ ok1(tal_name(p) != name);
+
+ tal_set_name(p, "some other literal");
+ ok1(strcmp(tal_name(p), "some other literal") == 0);
+
+ tal_free(p);
+
+ p = tal_arr(NULL, int, 2);
+ ok1(strcmp(tal_name(p), "int[]") == 0);
+ tal_free(p);
+
+ return exit_status();
+}
--- /dev/null
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+
+static int error_count;
+
+static void my_error(const char *msg)
+{
+ error_count++;
+}
+
+int main(void)
+{
+ void *p;
+ int *pi, *origpi;
+ char *cp;
+
+ plan_tests(30);
+
+ tal_set_backend(NULL, NULL, NULL, my_error);
+ talloc_enable_null_tracking_no_autofree();
+
+ p = tal_arr(NULL, int, (size_t)-1);
+ ok1(!p);
+ ok1(error_count == 1);
+
+ p = tal_arr(NULL, char, (size_t)-2);
+ ok1(!p);
+ ok1(error_count == 2);
+
+ /* Now try overflow cases for tal_dup. */
+ error_count = 0;
+ origpi = tal_arr(NULL, int, 100);
+ ok1(origpi);
+ ok1(error_count == 0);
+ pi = tal_dup(NULL, int, origpi, (size_t)-1, 0);
+ ok1(!pi);
+ ok1(error_count == 1);
+ pi = tal_dup(NULL, int, origpi, 0, (size_t)-1);
+ ok1(!pi);
+ ok1(error_count == 2);
+
+ pi = tal_dup(NULL, int, origpi, (size_t)-1UL / sizeof(int),
+ (size_t)-1UL / sizeof(int));
+ ok1(!pi);
+ ok1(error_count == 3);
+ /* This will still overflow when tal_hdr is added. */
+ pi = tal_dup(NULL, int, origpi, (size_t)-1UL / sizeof(int) / 2,
+ (size_t)-1UL / sizeof(int) / 2);
+ ok1(!pi);
+ ok1(error_count == 4);
+ ok1(talloc_total_blocks(NULL) == 2);
+ tal_free(origpi);
+
+ /* Now, check that with taltk() we free old one on failure. */
+ origpi = tal_arr(NULL, int, 100);
+ error_count = 0;
+ pi = tal_dup(NULL, int, take(origpi), (size_t)-1, 0);
+ ok1(!pi);
+ ok1(error_count == 1);
+
+ origpi = tal_arr(NULL, int, 100);
+ error_count = 0;
+ pi = tal_dup(NULL, int, take(origpi), 0, (size_t)-1);
+ ok1(!pi);
+ ok1(error_count == 1);
+ ok1(talloc_total_blocks(NULL) == 1);
+
+ origpi = tal_arr(NULL, int, 100);
+ error_count = 0;
+ pi = tal_dup(NULL, int, take(origpi), (size_t)-1UL / sizeof(int),
+ (size_t)-1UL / sizeof(int));
+ ok1(!pi);
+ ok1(error_count == 1);
+ ok1(talloc_total_blocks(NULL) == 1);
+
+ origpi = tal_arr(NULL, int, 100);
+ error_count = 0;
+ /* This will still overflow when tal_hdr is added. */
+ pi = tal_dup(NULL, int, take(origpi), (size_t)-1UL / sizeof(int) / 2,
+ (size_t)-1UL / sizeof(int) / 2);
+ ok1(!pi);
+ ok1(error_count == 1);
+ ok1(talloc_total_blocks(NULL) == 1);
+
+ /* Overflow on expand addition. */
+ cp = tal_arr(p, char, 100);
+ ok1(!tal_expand(&cp, NULL, (size_t)-99UL));
+ ok1(error_count == 2);
+ tal_free(cp);
+
+ /* Overflow when multiplied by size */
+ origpi = tal_arr(NULL, int, 100);
+ ok1(!tal_expand(&origpi, NULL, (size_t)-1UL / sizeof(int)));
+ ok1(error_count == 3);
+ tal_free(origpi);
+
+ talloc_disable_null_tracking();
+ return exit_status();
+}
--- /dev/null
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+ char *p[5];
+ unsigned int i;
+
+ plan_tests(9);
+
+ p[0] = tal(NULL, char);
+ for (i = 1; i < 5; i++)
+ p[i] = tal(p[i-1], char);
+
+ tal_check(NULL, "check");
+ /* Steal node with no children. */
+ ok1(tal_steal(p[0], p[4]) == p[4]);
+ tal_check(NULL, "check");
+ /* Noop steal. */
+ ok1(tal_steal(p[0], p[4]) == p[4]);
+ tal_check(NULL, "check");
+ /* Steal with children. */
+ ok1(tal_steal(p[0], p[1]) == p[1]);
+ tal_check(NULL, "check");
+ /* Noop steal. */
+ ok1(tal_steal(p[0], p[1]) == p[1]);
+ tal_check(NULL, "check");
+ /* Steal from direct child. */
+ ok1(tal_steal(p[0], p[2]) == p[2]);
+ tal_check(NULL, "check");
+
+ ok1(tal_parent(p[1]) == p[0]);
+ ok1(tal_parent(p[2]) == p[0]);
+ ok1(tal_parent(p[3]) == p[2]);
+ ok1(tal_parent(p[4]) == p[0]);
+ tal_free(p[0]);
+
+ return exit_status();
+}
--- /dev/null
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+ char *parent, *c;
+
+ plan_tests(21);
+
+ /* We can take NULL. */
+ ok1(take(NULL) == NULL);
+ ok1(is_taken(NULL));
+ ok1(taken(NULL)); /* Undoes take() */
+ ok1(!is_taken(NULL));
+ ok1(!taken(NULL));
+
+ parent = tal(NULL, char);
+ ok1(parent);
+
+ ok1(take(parent) == parent);
+ ok1(is_taken(parent));
+ ok1(taken(parent)); /* Undoes take() */
+ ok1(!is_taken(parent));
+ ok1(!taken(parent));
+
+ c = tal(parent, char);
+ *c = 'h';
+ c = tal_dup(parent, char, take(c), 1, 0);
+ ok1(c[0] == 'h');
+ ok1(tal_parent(c) == parent);
+
+ c = tal_dup(parent, char, take(c), 1, 2);
+ ok1(c[0] == 'h');
+ strcpy(c, "hi");
+ ok1(tal_parent(c) == parent);
+
+ /* dup must reparent child. */
+ c = tal_dup(NULL, char, take(c), 1, 0);
+ ok1(c[0] == 'h');
+ ok1(tal_parent(c) == NULL);
+
+ /* No leftover allocations. */
+ tal_free(c);
+ ok1(talloc_total_blocks(parent) == 1);
+
+ tal_free(parent);
+ ok1(!taken_any());
+
+ /* NULL pass-through. */
+ c = NULL;
+ ok1(tal_dup(NULL, char, take(c), 5, 5) == NULL);
+ ok1(!taken_any());
+
+ return exit_status();
+}
--- /dev/null
+#include <ccan/tal/talloc/talloc.h>
+#include <ccan/tal/talloc/talloc.c>
+#include <ccan/tap/tap.h>
+
+int main(void)
+{
+ char *parent, *c[4];
+ int i, j;
+
+ plan_tests(9);
+
+ /* tal_free(NULL) works. */
+ ok1(tal_free(NULL) == NULL);
+
+ parent = tal(NULL, char);
+ ok1(parent);
+ ok1(tal_parent(parent) == NULL);
+ ok1(tal_parent(NULL) == NULL);
+
+ for (i = 0; i < 4; i++)
+ c[i] = tal(parent, char);
+
+ for (i = 0; i < 4; i++)
+ ok1(tal_parent(c[i]) == parent);
+
+ /* Free parent. */
+ ok1(tal_free(parent) == NULL);
+
+ parent = tal(NULL, char);
+
+ /* Test freeing in every order */
+ for (i = 0; i < 4; i++) {
+ for (j = 0; j < 4; j++)
+ c[j] = tal(parent, char);
+
+ tal_free(c[i]);
+ tal_free(c[(i+1) % 4]);
+ tal_free(c[(i+2) % 4]);
+ tal_free(c[(i+3) % 4]);
+ }
+ tal_free(parent);
+
+ return exit_status();
+}
}
for (i = 0; i < core_deps; i++) {
- if (!used[i])
+ if (!used[i] && strstarts(deps[i], "ccan/"))
score_file_error(score, m->info_file, 0,
"%s is an unused dependency",
deps[i]);
projects / ccan / commitdiff