Bug #13443 Updated: gethostbyname returns the name not the IP addr.

ID: 13443 Updated by: jimw Reported By: brooks@netgate.net Status: Duplicate Bug Type: Unknown/Other Function Operating System: BSDI 4.1 PHP Version: 4.0.6 New Comment: php does not require a local dns server to be running unless your system's C library gethostbyname() call does (which seems extraordinarily unlikely). here's a small c program you can use to test your system's gethostbyname(). if it says that no ip address is found, that's the exact same situation in which php's gethostbyname() will return the original hostname. #include <stdlib.h> #include <stdio.h> #include <netdb.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> int main(int argc, char **argv) { struct hostent *host; struct in_addr in; if (argc != 2) { fprintf(stderr,"usage: %s hostname\n", argv[0]); exit(1); } host = gethostbyname(argv[1]); if (host->h_length) { memcpy(&in.s_addr, *(host->h_addr_list), sizeof(in.s_addr)); fprintf(stderr,"%s\n",inet_ntoa(in)); } else { fprintf(stderr,"no ip address found for %s\n", argv[1]); exit(1); } exit(0); } Previous Comments: ------------------------------------------------------------------------ [2001-09-26 17:33:02] brooks@netgate.net Does PHP require a local bind running? Everything seems to point in that direction. The resolver libs are doing a lookup to the address of 0.0.0.0 vs. the servers as configured in resolv.conf. ;; Querying server (# 1) address = 0.0.0.0 ------------------------------------------------------------------------ [2001-09-25 17:16:30] brooks@netgate.net IMHO this is not the same as #13423, which is why I didn't list it in the original report. Although the data returned is the same (hostname instead of IP address) the reason for the failure is seems very different. ------------------------------------------------------------------------ [2001-09-25 16:45:51] jimw@php.net duplicate of 13423, among the others listed in the report. gethostbyname() returns the hostname it is passed when the C-level gethostbyname() call fails. ------------------------------------------------------------------------ [2001-09-25 16:22:34] brooks@netgate.net This is basically the same report as 8754, 12678, and 8856. The gethostbyname function returns the name instead of the IP address. The host is configured correctly and names can be resolved from the shell using nslookup, dig, etc. This bug first appeared in 4.0.4 (although I didn't know it until now) and is present in 4.0.6 and 4.0.8-dev (php4-200109251335.tar.gz - latest from the snapshots dir as of 9/26/01). I regressed the bug back to my previous version of 3.0.14 and the bug is not present in that version. I have tried both gethostbyname (returns the name) and gethostbynamel (returns 0 items in the array). ------------------------------------------------------------------------ Edit this bug report at http://bugs.php.net/?id=13443&edit=1