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#include <errno.h> /* ENOENT */
#include <netdb.h> /* getproto* */
#include <stddef.h> /* NULL, size_t */
#include <string.h> /* memcpy */
/**
* Retrieve information from the network protocol database by protocol name,
* reentrantly.
*
* LSB 5.0: LSB-Core-generic/baselib-getprotobyname-r.html
*/
int getprotobyname_r(const char *name, struct protoent *result_buf, char *buf,
size_t buflen, struct protoent **result)
{
struct protoent *prototmp = getprotobyname(name);
/* musl does not reuse static storage, so no race is possible. */
if (prototmp == NULL) {
*result = NULL;
return ENOENT;
}
*result = memcpy(result_buf, prototmp, sizeof(*result_buf));
return 0;
}
/**
* Retrieve information from the network protocol database by protocol number,
* reentrantly.
*
* LSB 5.0: LSB-Core-generic/baselib-getprotobynumber-r.html
*/
int getprotobynumber_r(int proto, struct protoent *result_buf, char *buf,
size_t buflen, struct protoent **result)
{
struct protoent *prototmp = getprotobynumber(proto);
/* musl does not reuse static storage, so no race is possible. */
if (prototmp == NULL) {
*result = NULL;
return ENOENT;
}
*result = memcpy(result_buf, prototmp, sizeof(*result_buf));
return 0;
}
/**
* Read the next entry of the protocol database, reentrantly.
*
* LSB 5.0: LSB-Core-generic/baselib-getprotoent-r.html
*/
int getprotoent_r(struct protoent *result_buf, char *buf, size_t buflen,
struct protoent **result)
{
struct protoent *prototmp = getprotoent();
/* musl does not reuse static storage, so no race is possible. */
if (prototmp == NULL) {
*result = NULL;
return ENOENT;
}
*result = memcpy(result_buf, prototmp, sizeof(*result_buf));
return 0;
}
/**
* Read the next entry of the network services database, reentrantly.
*
* LSB 5.0: LSB-Core-generic/baselib-getservent-r.html
*/
int getservent_r(struct servent *result_buf, char *buf, size_t buflen,
struct servent **result)
{
/* musl does not implement getservent(). */
*result = NULL;
return ENOENT;
}
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