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#include "config.h"
#include "fetchmail.h"
#include "i18n.h"
#include <signal.h>
#include <errno.h>
#include <string.h>
/** This is a getaddrinfo() replacement that blocks SIGALRM,
* to avoid issues with non-reentrant getaddrinfo() implementations
* after SIGALRM timeouts, for instance on MacOS X or NetBSD. */
int fm_getaddrinfo(const char *node, const char *serv, const struct addrinfo *hints, struct addrinfo **res)
{
int rc;
#ifndef GETADDRINFO_ASYNCSAFE
sigset_t ss, os;
sigemptyset(&ss);
sigaddset(&ss, SIGALRM);
if (sigprocmask(SIG_BLOCK, &ss, &os))
report(stderr, GT_("Cannot modify signal mask: %s"), strerror(errno));
#endif
rc = getaddrinfo(node, serv, hints, res);
#ifndef GETADDRINFO_ASYNCSAFE
if (sigprocmask(SIG_SETMASK, &os, NULL))
report(stderr, GT_("Cannot modify signal mask: %s"), strerror(errno));
#endif
return rc;
}
/** this is a debugging freeaddrinfo() wrapper. */
void fm_freeaddrinfo(struct addrinfo *ai)
{
freeaddrinfo(ai);
}
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