SOL_API const char *
sol_network_link_addr_to_str(const struct sol_network_link_addr *addr,
struct sol_buffer *buf)
{
#if MODULE_GNRC_IPV6_NETIF
const char *r;
SOL_NULL_CHECK(addr, NULL);
SOL_NULL_CHECK(buf, NULL);
if (addr->family != SOL_NETWORK_FAMILY_INET6)
return NULL;
if (buf->capacity - buf->used < IPV6_ADDR_MAX_STR_LEN) {
int err;
err = sol_buffer_expand(buf, IPV6_ADDR_MAX_STR_LEN);
SOL_INT_CHECK(err, < 0, NULL);
}
SOL_API char *
sol_util_strerror(int errnum, struct sol_buffer *buf)
{
char *ret;
int err;
SOL_NULL_CHECK(buf, NULL);
#define CHUNK_SIZE (512)
#ifdef HAVE_XSI_STRERROR_R
/* XSI-compliant strerror_r returns int */
while (1) {
errno = 0;
ret = sol_buffer_at_end(buf);
err = strerror_r(errnum, ret, buf->capacity - buf->used);
if (err == ERANGE || (err < 0 && errno == ERANGE)) {
err = sol_buffer_expand(buf, CHUNK_SIZE);
SOL_INT_CHECK(err, < 0, NULL);
} else if (err != 0)
SOL_API char *
sol_json_escape_string(const char *str, struct sol_buffer *buf)
{
char *out, *r_str;
size_t i, escaped_len;
int r;
SOL_NULL_CHECK(str, NULL);
SOL_NULL_CHECK(buf, NULL);
escaped_len = sol_json_calculate_escaped_string_len(str);
r = sol_buffer_expand(buf, escaped_len);
SOL_INT_CHECK(r, < 0, NULL);
r_str = out = sol_buffer_at_end(buf);
for (i = 0; *str && i < escaped_len; str++, i++) {
if (memchr(sol_json_escapable_chars, *str, sizeof(sol_json_escapable_chars))) {
*out++ = '\\';
switch (*str) {
case '"': *out++ = '"'; break;
case '\\': *out++ = '\\'; break;
case '/': *out++ = '/'; break;
case '\b': *out++ = 'b'; break;
case '\f': *out++ = 'f'; break;
case '\n': *out++ = 'n'; break;
case '\r': *out++ = 'r'; break;
case '\t': *out++ = 't'; break;
}
} else {
*out++ = *str;
}
}
*out++ = '\0';
buf->used += escaped_len - 1;
return r_str;
}
