diff options
Diffstat (limited to 'mdk-stage1/dietlibc/libcruft/gethostbyaddr_r.c')
-rw-r--r-- | mdk-stage1/dietlibc/libcruft/gethostbyaddr_r.c | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/mdk-stage1/dietlibc/libcruft/gethostbyaddr_r.c b/mdk-stage1/dietlibc/libcruft/gethostbyaddr_r.c deleted file mode 100644 index d18053c45..000000000 --- a/mdk-stage1/dietlibc/libcruft/gethostbyaddr_r.c +++ /dev/null @@ -1,84 +0,0 @@ -#include <string.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <netdb.h> -#include <stdlib.h> -#include <arpa/inet.h> -#include <unistd.h> -#include <errno.h> -#include "dietfeatures.h" -#include "dietdns.h" - -static int i2a(char* dest,unsigned int x) { - register unsigned int tmp=x; - register int len=0; - if (x>=100) { *dest++=tmp/100+'0'; tmp=tmp%100; ++len; } - if (x>=10) { *dest++=tmp/10+'0'; tmp=tmp%10; ++len; } - *dest++=tmp+'0'; - return len+1; -} - -static char hexdigit(char c) { - return c>9?c-10+'a':c+'0'; -} - -/* Oh boy, this interface sucks so badly, there are no words for it. - * Not one, not two, but _three_ error signalling methods! (*h_errnop - * nonzero? return value nonzero? *RESULT zero?) The glibc goons - * really outdid themselves with this one. */ -int gethostbyaddr_r(const char* addr, size_t length, int format, - struct hostent* result, char *buf, size_t buflen, - struct hostent **RESULT, int *h_errnop) { - char tmpbuf[100]; - char* tmp; - int res; - (void)length; /* shut gcc up about unused length. The length is implicit with format */ -#ifdef WANT_ETC_HOSTS - { - struct hostent* r; - while ((r=gethostent_r(buf,buflen))) { - if (r->h_addrtype==format && !memcmp(r->h_addr_list[0],addr,r->h_length)) { /* found it! */ - memmove(result,r,sizeof(struct hostent)); - *RESULT=result; - *h_errnop=0; - return 0; - } - } - endhostent(); - } -#endif - if (format==AF_INET) { - tmp=tmpbuf+i2a(tmpbuf,(unsigned char)addr[3]); *tmp++='.'; - tmp+=i2a(tmp,(unsigned char)addr[2]); *tmp++='.'; - tmp+=i2a(tmp,(unsigned char)addr[1]); *tmp++='.'; - tmp+=i2a(tmp,(unsigned char)addr[0]); strcpy(tmp,".in-addr.arpa"); - } else if (format==AF_INET6) { - int i; - tmp=tmpbuf; - for (i=15; i>=0; --i) { - tmp[0]=hexdigit(addr[i]&0xf); - tmp[1]='.'; - tmp[2]=hexdigit((addr[i]>>4)&0xf); - tmp[3]='.'; - tmp+=4; - } - strcpy(tmp,".ip6.int"); - } else return 1; - if (buflen<sizeof(struct hostent)+16) { - errno=ENOMEM; - *h_errnop=NO_RECOVERY; - return 1; - } - res= __dns_gethostbyx_r(tmpbuf,result,buf+16,buflen-16,RESULT,h_errnop,12); /* 12 == ns_t_ptr */ - if (res==0) { - if (format==AF_INET) { - result->h_length=4; - result->h_addrtype=format; - } - memcpy(buf,addr,result->h_length); - result->h_addr_list[0]=buf; - result->h_addr_list[1]=0; - } - return res; -} |