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Upgrade unbound library
These files were pulled from the 1.6.3 release tarball. This new version builds against OpenSSL version 1.1 which will be the default in the new Debian Stable which is due to be released RealSoonNow (tm).
This commit is contained in:
Erik de Castro Lopo
parent
e3da0ca828
commit
a85b5759f3
241 changed files with 33336 additions and 12049 deletions
150
external/unbound/daemon/unbound.c
vendored
150
external/unbound/daemon/unbound.c
vendored
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@ -57,6 +57,7 @@
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#include "util/data/msgreply.h"
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#include "util/module.h"
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#include "util/net_help.h"
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#include "util/ub_event.h"
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#include <signal.h>
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#include <fcntl.h>
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#include <openssl/crypto.h>
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@ -77,22 +78,6 @@
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#include <login_cap.h>
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#endif
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#ifdef USE_MINI_EVENT
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# ifdef USE_WINSOCK
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# include "util/winsock_event.h"
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# else
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# include "util/mini_event.h"
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# endif
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#else
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# ifdef HAVE_EVENT_H
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# include <event.h>
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# else
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# include "event2/event.h"
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# include "event2/event_struct.h"
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# include "event2/event_compat.h"
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# endif
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#endif
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#ifdef UB_ON_WINDOWS
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# include "winrc/win_svc.h"
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#endif
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@ -102,64 +87,14 @@
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# include "nss.h"
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#endif
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#ifdef HAVE_SBRK
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/** global debug value to keep track of heap memory allocation */
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void* unbound_start_brk = 0;
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#endif
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#if !defined(HAVE_EVENT_BASE_GET_METHOD) && (defined(HAVE_EV_LOOP) || defined(HAVE_EV_DEFAULT_LOOP))
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static const char* ev_backend2str(int b)
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{
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switch(b) {
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case EVBACKEND_SELECT: return "select";
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case EVBACKEND_POLL: return "poll";
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case EVBACKEND_EPOLL: return "epoll";
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case EVBACKEND_KQUEUE: return "kqueue";
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case EVBACKEND_DEVPOLL: return "devpoll";
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case EVBACKEND_PORT: return "evport";
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}
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return "unknown";
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}
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#endif
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/** get the event system in use */
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static void get_event_sys(const char** n, const char** s, const char** m)
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{
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#ifdef USE_WINSOCK
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*n = "event";
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*s = "winsock";
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*m = "WSAWaitForMultipleEvents";
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#elif defined(USE_MINI_EVENT)
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*n = "mini-event";
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*s = "internal";
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*m = "select";
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#else
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struct event_base* b;
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*s = event_get_version();
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# ifdef HAVE_EVENT_BASE_GET_METHOD
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*n = "libevent";
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b = event_base_new();
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*m = event_base_get_method(b);
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# elif defined(HAVE_EV_LOOP) || defined(HAVE_EV_DEFAULT_LOOP)
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*n = "libev";
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b = (struct event_base*)ev_default_loop(EVFLAG_AUTO);
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*m = ev_backend2str(ev_backend((struct ev_loop*)b));
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# else
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*n = "unknown";
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*m = "not obtainable";
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b = NULL;
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# endif
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# ifdef HAVE_EVENT_BASE_FREE
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event_base_free(b);
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# endif
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#endif
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}
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/** print usage. */
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static void usage()
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static void usage(void)
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{
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const char** m;
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const char *evnm="event", *evsys="", *evmethod="";
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time_t t;
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struct timeval now;
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struct ub_event_base* base;
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printf("usage: unbound [options]\n");
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printf(" start unbound daemon DNS resolver.\n");
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printf("-h this help\n");
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@ -173,11 +108,16 @@ static void usage()
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printf(" service - used to start from services control panel\n");
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#endif
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printf("Version %s\n", PACKAGE_VERSION);
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get_event_sys(&evnm, &evsys, &evmethod);
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base = ub_default_event_base(0,&t,&now);
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ub_get_event_sys(base, &evnm, &evsys, &evmethod);
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printf("linked libs: %s %s (it uses %s), %s\n",
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evnm, evsys, evmethod,
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#ifdef HAVE_SSL
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# ifdef SSLEAY_VERSION
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SSLeay_version(SSLEAY_VERSION)
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# else
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OpenSSL_version(OPENSSL_VERSION)
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# endif
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#elif defined(HAVE_NSS)
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NSS_GetVersion()
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#elif defined(HAVE_NETTLE)
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@ -190,6 +130,7 @@ static void usage()
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printf("\n");
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printf("BSD licensed, see LICENSE in source package for details.\n");
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printf("Report bugs to %s\n", PACKAGE_BUGREPORT);
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ub_event_base_free(base);
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}
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#ifndef unbound_testbound
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@ -230,7 +171,7 @@ checkrlimits(struct config_file* cfg)
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struct rlimit rlim;
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if(total > 1024 &&
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strncmp(event_get_version(), "mini-event", 10) == 0) {
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strncmp(ub_event_get_version(), "mini-event", 10) == 0) {
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log_warn("too many file descriptors requested. The builtin"
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"mini-event cannot handle more than 1024. Config "
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"for less fds or compile with libevent");
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@ -244,7 +185,7 @@ checkrlimits(struct config_file* cfg)
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total = 1024;
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}
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if(perthread > 64 &&
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strncmp(event_get_version(), "winsock-event", 13) == 0) {
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strncmp(ub_event_get_version(), "winsock-event", 13) == 0) {
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log_err("too many file descriptors requested. The winsock"
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" event handler cannot handle more than 64 per "
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" thread. Config for less fds");
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@ -298,19 +239,37 @@ checkrlimits(struct config_file* cfg)
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#endif /* S_SPLINT_S */
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}
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/** set default logfile identity based on value from argv[0] at startup **/
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static void
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log_ident_set_fromdefault(struct config_file* cfg,
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const char *log_default_identity)
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{
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if(cfg->log_identity == NULL || cfg->log_identity[0] == 0)
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log_ident_set(log_default_identity);
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else
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log_ident_set(cfg->log_identity);
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}
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/** set verbosity, check rlimits, cache settings */
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static void
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apply_settings(struct daemon* daemon, struct config_file* cfg,
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int cmdline_verbose, int debug_mode)
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int cmdline_verbose, int debug_mode, const char* log_default_identity)
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{
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/* apply if they have changed */
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verbosity = cmdline_verbose + cfg->verbosity;
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if (debug_mode > 1) {
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cfg->use_syslog = 0;
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free(cfg->logfile);
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cfg->logfile = NULL;
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}
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daemon_apply_cfg(daemon, cfg);
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checkrlimits(cfg);
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if (cfg->use_systemd && cfg->do_daemonize) {
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log_warn("use-systemd and do-daemonize should not be enabled at the same time");
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}
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log_ident_set_fromdefault(cfg, log_default_identity);
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}
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#ifdef HAVE_KILL
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@ -443,6 +402,9 @@ static void
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perform_setup(struct daemon* daemon, struct config_file* cfg, int debug_mode,
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const char** cfgfile)
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{
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#ifdef HAVE_KILL
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int pidinchroot;
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#endif
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#ifdef HAVE_GETPWNAM
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struct passwd *pwd = NULL;
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@ -481,6 +443,12 @@ perform_setup(struct daemon* daemon, struct config_file* cfg, int debug_mode,
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#endif
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#ifdef HAVE_KILL
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/* true if pidfile is inside chrootdir, or nochroot */
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pidinchroot = !(cfg->chrootdir && cfg->chrootdir[0]) ||
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(cfg->chrootdir && cfg->chrootdir[0] &&
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strncmp(cfg->pidfile, cfg->chrootdir,
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strlen(cfg->chrootdir))==0);
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/* check old pid file before forking */
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if(cfg->pidfile && cfg->pidfile[0]) {
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/* calculate position of pidfile */
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@ -490,12 +458,7 @@ perform_setup(struct daemon* daemon, struct config_file* cfg, int debug_mode,
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cfg, 1);
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if(!daemon->pidfile)
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fatal_exit("pidfile alloc: out of memory");
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checkoldpid(daemon->pidfile,
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/* true if pidfile is inside chrootdir, or nochroot */
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!(cfg->chrootdir && cfg->chrootdir[0]) ||
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(cfg->chrootdir && cfg->chrootdir[0] &&
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strncmp(daemon->pidfile, cfg->chrootdir,
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strlen(cfg->chrootdir))==0));
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checkoldpid(daemon->pidfile, pidinchroot);
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}
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#endif
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@ -508,10 +471,11 @@ perform_setup(struct daemon* daemon, struct config_file* cfg, int debug_mode,
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#ifdef HAVE_KILL
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if(cfg->pidfile && cfg->pidfile[0]) {
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writepid(daemon->pidfile, getpid());
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if(cfg->username && cfg->username[0] && cfg_uid != (uid_t)-1) {
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if(cfg->username && cfg->username[0] && cfg_uid != (uid_t)-1 &&
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pidinchroot) {
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# ifdef HAVE_CHOWN
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if(chown(daemon->pidfile, cfg_uid, cfg_gid) == -1) {
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log_err("cannot chown %u.%u %s: %s",
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verbose(VERB_QUERY, "cannot chown %u.%u %s: %s",
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(unsigned)cfg_uid, (unsigned)cfg_gid,
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daemon->pidfile, strerror(errno));
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}
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@ -597,7 +561,9 @@ perform_setup(struct daemon* daemon, struct config_file* cfg, int debug_mode,
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log_warn("unable to initgroups %s: %s",
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cfg->username, strerror(errno));
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# endif /* HAVE_INITGROUPS */
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# ifdef HAVE_ENDPWENT
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endpwent();
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# endif
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#ifdef HAVE_SETRESGID
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if(setresgid(cfg_gid,cfg_gid,cfg_gid) != 0)
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@ -633,9 +599,10 @@ perform_setup(struct daemon* daemon, struct config_file* cfg, int debug_mode,
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* @param cmdline_verbose: verbosity resulting from commandline -v.
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* These increase verbosity as specified in the config file.
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* @param debug_mode: if set, do not daemonize.
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* @param log_default_identity: Default identity to report in logs
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*/
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static void
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run_daemon(const char* cfgfile, int cmdline_verbose, int debug_mode)
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run_daemon(const char* cfgfile, int cmdline_verbose, int debug_mode, const char* log_default_identity)
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{
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struct config_file* cfg = NULL;
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struct daemon* daemon = NULL;
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@ -657,7 +624,7 @@ run_daemon(const char* cfgfile, int cmdline_verbose, int debug_mode)
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cfgfile);
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log_warn("Continuing with default config settings");
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}
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apply_settings(daemon, cfg, cmdline_verbose, debug_mode);
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apply_settings(daemon, cfg, cmdline_verbose, debug_mode, log_default_identity);
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if(!done_setup)
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config_lookup_uid(cfg);
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@ -665,7 +632,7 @@ run_daemon(const char* cfgfile, int cmdline_verbose, int debug_mode)
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if(!daemon_open_shared_ports(daemon))
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fatal_exit("could not open ports");
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if(!done_setup) {
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perform_setup(daemon, cfg, debug_mode, &cfgfile);
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perform_setup(daemon, cfg, debug_mode, &cfgfile);
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done_setup = 1;
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} else {
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/* reopen log after HUP to facilitate log rotation */
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@ -712,19 +679,16 @@ main(int argc, char* argv[])
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int c;
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const char* cfgfile = CONFIGFILE;
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const char* winopt = NULL;
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const char* log_ident_default;
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int cmdline_verbose = 0;
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int debug_mode = 0;
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#ifdef UB_ON_WINDOWS
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int cmdline_cfg = 0;
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#endif
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#ifdef HAVE_SBRK
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/* take debug snapshot of heap */
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unbound_start_brk = sbrk(0);
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#endif
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log_init(NULL, 0, NULL);
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log_ident_set(strrchr(argv[0],'/')?strrchr(argv[0],'/')+1:argv[0]);
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log_ident_default = strrchr(argv[0],'/')?strrchr(argv[0],'/')+1:argv[0];
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log_ident_set(log_ident_default);
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/* parse the options */
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while( (c=getopt(argc, argv, "c:dhvw:")) != -1) {
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switch(c) {
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@ -735,7 +699,7 @@ main(int argc, char* argv[])
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#endif
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break;
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case 'v':
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cmdline_verbose ++;
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cmdline_verbose++;
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verbosity++;
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break;
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case 'd':
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@ -768,7 +732,7 @@ main(int argc, char* argv[])
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return 1;
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}
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run_daemon(cfgfile, cmdline_verbose, debug_mode);
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run_daemon(cfgfile, cmdline_verbose, debug_mode, log_ident_default);
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log_init(NULL, 0, NULL); /* close logfile */
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return 0;
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}
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