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lib: actually create the tree for the conversion

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Before this fix would always return empty results b/c there was no
libyang tree to print to output format.

Signed-off-by: Christian Hopps <chopps@labn.net>
(cherry picked from commit dff28248c3)
This commit is contained in:
Christian Hopps 2024-02-14 17:32:04 -05:00 committed by Mergify
parent ca30662b7f
commit 2d3b40dce6
1 changed files with 18 additions and 3 deletions
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21
lib/yang.c
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@ -795,23 +795,38 @@ char *yang_convert_lyd_format(const uint8_t *data, size_t data_len,
LYD_FORMAT out_format, bool shrink)
{
struct lyd_node *tree = NULL;
uint8_t *result = NULL;
uint32_t options = LYD_PRINT_WD_EXPLICIT | LYD_PRINT_WITHSIBLINGS;
uint8_t *result = NULL;
LY_ERR err;
assert(out_format != LYD_LYB);
if (!MGMT_MSG_VALIDATE_NUL_TERM(data, data_len))
if (in_format != LYD_LYB && !MGMT_MSG_VALIDATE_NUL_TERM(data, data_len)) {
zlog_err("Corrupt input data, no NUL terminating byte");
return NULL;
}
if (in_format == out_format)
return darr_strdup((const char *)data);
err = lyd_parse_data_mem(ly_native_ctx, (const char *)data, in_format,
LYD_PARSE_ONLY, 0, &tree);
if (err) {
flog_err_sys(EC_LIB_LIBYANG,
"cannot parse input data to convert: %s",
ly_last_errmsg());
return NULL;
}
if (shrink)
options |= LYD_PRINT_SHRINK;
/* Take a guess at the initial capacity based on input data size */
darr_ensure_cap(result, data_len);
if (yang_print_tree_append(&result, tree, out_format, options)) {
err = yang_print_tree_append(&result, tree, out_format, options);
lyd_free_all(tree);
if (err) {
darr_free(result);
return NULL;
}