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#include <string.h>
#include <netdb.h>
extern int getprotobynumber_r(int proto,
struct protoent *res, char *buf, size_t buflen,
struct protoent **res_sig) {
while (!getprotoent_r(res,buf,buflen,res_sig))
if (proto==res->p_proto) goto found;
*res_sig=0;
found:
endprotoent();
return *res_sig?0:-1;
}
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