void sal_detail_initialize(int argc, char ** argv) { if (argc == sal::detail::InitializeSoffice)
{
sal::detail::setSoffice(); return;
} #ifdefined MACOSX && !HAVE_FEATURE_MACOSX_SANDBOX // On macOS when not sandboxed, soffice can restart itself via exec (see // restartOnMac in desktop/source/app/app.cxx), which leaves all file // descriptors open, which in turn can have unwanted effects (see // <https://bugs.libreoffice.org/show_bug.cgi?id=50603> "Unable to update // LibreOffice without resetting user profile"). But closing fds in // restartOnMac before calling exec does not work, as additional threads // might still be running then, which can still use those fds and cause // crashes. Therefore, the simplest solution is to close fds at process // start (as early as possible, so that no other threads have been created // yet that might already have opened some fds); this is done for all kinds // of processes here, not just soffice, but hopefully none of our processes // rely on being spawned with certain fds already open. Unfortunately, Mac // macOS appears to have no better interface to close all fds (like // closefrom): long openMax = sysconf(_SC_OPEN_MAX); // When LibreOffice restarts itself on macOS 11 beta on arm64, for // some reason sysconf(_SC_OPEN_MAX) returns 0x7FFFFFFFFFFFFFFF, // so use a sanity limit here. if (openMax == -1 || openMax == std::numeric_limits<long>::max()) {
openMax = 100000;
}
assert(openMax >= 0 && openMax <= std::numeric_limits< int >::max()); for (int fd = 3; fd < int(openMax); ++fd) { struct stat s; if (fstat(fd, &s) != -1 && S_ISREG(s.st_mode))
close(fd);
} #endif
sal_initGlobalTimer(); #if HAVE_SYSLOG_H constchar *use_syslog = getenv("SAL_LOG_SYSLOG");
sal_use_syslog = use_syslog != nullptr && !strcmp(use_syslog, "1"); if (sal_use_syslog)
openlog("libreoffice", 0, LOG_USER); #endif
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