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Added sequential (socket API) function gethostbyname and the struct hostent it uses

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goldsimon
2007-11-16 17:29:30 +00:00
parent e2cd201f6a
commit e6ec23d7cc
3 changed files with 62 additions and 2 deletions
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42
src/api/sockets.c
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@@ -96,6 +96,13 @@ static void event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len
static void lwip_getsockopt_internal(void *arg);
static void lwip_setsockopt_internal(void *arg);
#if LWIP_DNS
static struct hostent s_hostent;
static char *s_aliases;
static struct ip_addr s_hostent_addr;
static struct ip_addr *s_phostent_addr;
#endif /* LWIP_DNS */
static const int err_to_errno_table[] = {
0, /* ERR_OK 0 No error, everything OK. */
ENOMEM, /* ERR_MEM -1 Out of memory error. */
@@ -1795,4 +1802,39 @@ lwip_ioctl(int s, long cmd, void *argp)
} /* switch (cmd) */
}
#if LWIP_DNS
static void
lwip_fill_hostent(struct hostent *he, char *name, struct ip_addr **addr, char **aliases)
{
he->h_name = name;
he->h_aliases = aliases;
he->h_addrtype = AF_INET;
he->h_length = sizeof(struct ip_addr);
he->h_addr_list = (char**)addr;
}
struct hostent*
gethostbyname(const char *name)
{
err_t err;
struct ip_addr addr;
err = netconn_gethostbyname(name, &addr);
if (err != ERR_OK) {
return NULL;
}
s_hostent_addr = addr;
s_phostent_addr = &s_hostent_addr;
s_hostent.h_name = (char*)name;
s_hostent.h_aliases = &s_aliases;
s_hostent.h_addrtype = AF_INET;
s_hostent.h_length = sizeof(struct ip_addr);
s_hostent.h_addr_list = (char**)&s_phostent_addr;
return &s_hostent;
}
#endif /* LWIP_DNS*/
#endif /* LWIP_SOCKET */