diff options
Diffstat (limited to 'net.c')
| -rw-r--r-- | net.c | 39 |
1 files changed, 39 insertions, 0 deletions
@@ -852,6 +852,44 @@ finalize_it: } +/* get the name of the local host. A pointer to a character pointer is passed + * in, which on exit points to the local hostname. This buffer is dynamically + * allocated and must be free()ed by the caller. If the functions returns an + * error, the pointer is NULL. This function is based on GNU/Hurd's localhostname + * function. + * rgerhards, 20080-04-10 + */ +static rsRetVal +getLocalHostname(uchar **ppName) +{ + DEFiRet; + uchar *buf = NULL; + size_t buf_len = 0; + + assert(ppName != NULL); + + do { + if(buf == NULL) { + buf_len = 128; /* Initial guess */ + CHKmalloc(buf = malloc(buf_len)); + } else { + buf_len += buf_len; + CHKmalloc(buf = realloc (buf, buf_len)); + } + } while((gethostname((char*)buf, buf_len) == 0 && !memchr (buf, '\0', buf_len)) || errno == ENAMETOOLONG); + + *ppName = buf; + buf = NULL; + +finalize_it: + if(iRet != RS_RET_OK) { + if(buf != NULL) + free(buf); + } + RETiRet; +} + + /* closes the UDP listen sockets (if they exist) and frees * all dynamically assigned memory. */ @@ -1047,6 +1085,7 @@ CODESTARTobjQueryInterface(net) pIf->closeUDPListenSockets = closeUDPListenSockets; pIf->isAllowedSender = isAllowedSender; pIf->should_use_so_bsdcompat = should_use_so_bsdcompat; + pIf->getLocalHostname = getLocalHostname; finalize_it: ENDobjQueryInterface(net) |