diff options
Diffstat (limited to 'inet')
| -rw-r--r-- | inet/getnameinfo.c | 55 |
1 files changed, 27 insertions, 28 deletions
diff --git a/inet/getnameinfo.c b/inet/getnameinfo.c index 7c28e551b3..030447addb 100644 --- a/inet/getnameinfo.c +++ b/inet/getnameinfo.c @@ -72,16 +72,11 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. struct hostent *_addr2hostname_hosts(const char *, int, int); #endif /* HOSTTABLE */ -#ifndef MAXHOSTNAMELEN -#define MAXHOSTNAMELEN 128 -#endif - #ifndef min #define min(x,y) (((x) > (y)) ? (y) : (x)) #endif /* min */ -static char *domain; -static char domainbuffer[MAXHOSTNAMELEN]; +static const char *domain; static char *nrl_domainname(void) { @@ -114,32 +109,34 @@ static char *nrl_domainname(void) } if (h && (c = strchr(h->h_name, '.'))) { - strcpy(domain = domainbuffer, ++c); + domain = __strdup (++c); goto ret; } - if (!gethostname(domainbuffer, sizeof(domainbuffer))) { - if (c = strchr(domainbuffer, '.')) { - domain = ++c; - goto ret; - } + while (gethostname (tmpbuf, tmpbuflen)) { + tmpbuflen *= 2; + tmpbuf = __alloca (tmpbuflen); + } + if (c = strchr(tmpbuf, '.')) { + domain = __strdup(++c); + goto ret; + } - while (__gethostbyname_r(domainbuffer, &th, tmpbuf, tmpbuflen, &h, - &herror)) { - if (herror == NETDB_INTERNAL) { - if (errno == ERANGE) { - tmpbuflen *= 2; - tmpbuf = __alloca(tmpbuflen); - } - } else { - break; + while (__gethostbyname_r(tmpbuf, &th, tmpbuf, tmpbuflen, &h, + &herror)) { + if (herror == NETDB_INTERNAL) { + if (errno == ERANGE) { + tmpbuflen *= 2; + tmpbuf = __alloca(tmpbuflen); } + } else { + break; } + } - if (h && (c = strchr(h->h_name, '.'))) { - strcpy(domain = domainbuffer, ++c); - goto ret; - } + if (h && (c = strchr(h->h_name, '.'))) { + domain = __strdup(++c); + goto ret; } { @@ -147,7 +144,9 @@ static char *nrl_domainname(void) in_addr.s_addr = htonl(0x7f000001); - while (__gethostbyaddr_r((const char *)&in_addr, sizeof(struct in_addr), AF_INET, &th, tmpbuf, tmpbuflen, &h, &herror)) { + while (__gethostbyaddr_r((const char *)&in_addr, + sizeof(struct in_addr), AF_INET, &th, tmpbuf, + tmpbuflen, &h, &herror)) { if (herror == NETDB_INTERNAL) { if (errno == ERANGE) { tmpbuflen *= 2; @@ -159,7 +158,7 @@ static char *nrl_domainname(void) } if (h && (c = strchr(h->h_name, '.'))) { - domain = domainbuffer, ++c; + domain = __strdup(++c); goto ret; } } @@ -168,7 +167,7 @@ static char *nrl_domainname(void) ret: __libc_lock_unlock (lock); - }; + } return domain; }; |