Mail Archives: cygwin/2004/10/13/01:40:13
Carlo Florendo wrote:
> File: inetutils-1.3.2-28 /ftp/main.c (line numbers preceed each line)
>
> 147 sp = getservbyname("ftp", "tcp");
> 148 if (sp == 0)
> 149 errx(1, "ftp/tcp: unknown service");
Okay, so the 'SYSTEM' thing was a red herring, and you're just running
this from a normal command prompt. Your SYSTEMROOT is set and nothing
seems odd in your cygcheck, and permissions on the "services" file seem
okay. Although I think your reasoning there is a little off-base:
Cygwin itself does not attempt to access that file at all. Cygwin's
getservbyname() just a straight passthru to the Winsock function of the
same name which does the actual lookup.
Try the following and see what happens:
cat <<ENDL >getservbyname.c && \
gcc getservbyname.c -o getservbyname && ./getservbyname
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <netdb.h>
#include <netinet/in.h>
int main(int argc, char *argv[])
{
struct servent *sv = getservbyname("ftp", "tcp");
if(sv)
printf( "getservbyname() returned port %hu\n",
ntohs(sv->s_port));
else
printf( "getservbyname() returned NULL: %s\n",
strerror(errno));
}
ENDL
Also try the following variant that will create a mingw version of the
same test:
cat <<ENDL >getservbyname-mingw.c && gcc -mno-cygwin \
getservbyname-mingw.c -o getservbyname-mingw && ./getservbyname-mingw
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <winsock2.h>
int main(int argc, char *argv[])
{
struct servent *sv;
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 2, 2 );
err = WSAStartup( wVersionRequested, &wsaData );
if( err != 0 ) {
printf( "Unable to load ws2_32.dll: error %u\n", err);
exit(1);
}
if( ( sv = getservbyname("ftp", "tcp") ) )
printf( "getservbyname() returned port %hu\n",
ntohs(sv->s_port));
else
printf( "getservbyname() returned NULL: win32 error %u\n",
WSAGetLastError());
}
ENDL
Both of those should say "getservbyname() returned port 21". If either
fails, paste the output. I suppose it's remotely possible that
something's wrong with wsock32.dll or ws2_32.dll on your system, but if
that was the case you'd have many more problems I'd think.
Brian
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