mirror of
https://bitbucket.org/jsuto/piler.git
synced 2024-12-25 07:20:11 +01:00
really removed pilergetd
This commit is contained in:
SJ
parent
a83bdc43a7
commit
02e5ddcad8
399
src/pilergetd.c
399
src/pilergetd.c
@ -1,399 +0,0 @@
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/*
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* pilergetd.c, SJ
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <pwd.h>
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#include <signal.h>
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#include <syslog.h>
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#include <time.h>
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#include <unistd.h>
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#include <locale.h>
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#include <errno.h>
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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#include <piler.h>
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extern char *optarg;
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extern int optind;
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int sd;
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int quit = 0;
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int received_sighup = 0;
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char *configfile = CONFIG_FILE;
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struct __config cfg;
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struct __data data;
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struct passwd *pwd;
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struct child children[MAXCHILDREN];
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static void takesig(int sig);
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static void child_sighup_handler(int sig);
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static void child_main(struct child *ptr);
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static pid_t child_make(struct child *ptr);
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int search_slot_by_pid(pid_t pid);
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void kill_children(int sig);
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void p_clean_exit();
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void fatal(char *s);
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void initialise_configuration();
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static void takesig(int sig){
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int i, status;
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pid_t pid;
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switch(sig){
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case SIGHUP:
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initialise_configuration();
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if(read_key(&cfg)) fatal(ERR_READING_KEY);
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kill_children(SIGHUP);
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break;
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case SIGTERM:
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case SIGKILL:
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quit = 1;
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p_clean_exit();
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break;
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case SIGCHLD:
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while((pid = waitpid (-1, &status, WNOHANG)) > 0){
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if(quit == 0){
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i = search_slot_by_pid(pid);
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if(i >= 0){
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children[i].status = READY;
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children[i].pid = child_make(&children[i]);
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}
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else syslog(LOG_PRIORITY, "error: couldn't find slot for pid %d", pid);
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}
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}
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break;
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}
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return;
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}
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static void child_sighup_handler(int sig){
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if(sig == SIGHUP){
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received_sighup = 1;
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}
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}
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static void child_main(struct child *ptr){
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int new_sd;
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char s[INET6_ADDRSTRLEN];
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struct sockaddr_storage client_addr;
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socklen_t addr_size;
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ptr->messages = 0;
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if(cfg.verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "child (pid: %d) started main()", getpid());
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while(1){
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if(received_sighup == 1){
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if(cfg.verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "child (pid: %d) caught HUP signal", getpid());
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break;
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}
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ptr->status = READY;
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addr_size = sizeof(client_addr);
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new_sd = accept(sd, (struct sockaddr *)&client_addr, &addr_size);
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if(new_sd == -1) continue;
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ptr->status = BUSY;
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inet_ntop(client_addr.ss_family, get_in_addr((struct sockaddr *)&client_addr), s, sizeof(s));
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syslog(LOG_PRIORITY, "connection from %s", s);
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sig_block(SIGHUP);
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ptr->messages += handle_pilerget_request(new_sd, &data, &cfg);
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sig_unblock(SIGHUP);
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close(new_sd);
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if(cfg.max_requests_per_child > 0 && ptr->messages >= cfg.max_requests_per_child){
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if(cfg.verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "child (pid: %d) served enough: %d", getpid(), ptr->messages);
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break;
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}
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}
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ptr->status = UNDEF;
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#ifdef HAVE_MEMCACHED
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memcached_shutdown(&(data.memc));
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#endif
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if(cfg.verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "child decides to exit (pid: %d)", getpid());
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exit(0);
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}
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static pid_t child_make(struct child *ptr){
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pid_t pid;
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if((pid = fork()) > 0) return pid;
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if(pid == -1) return -1;
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if(cfg.verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "forked a child (pid: %d)", getpid());
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/* reset signals */
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set_signal_handler(SIGCHLD, SIG_DFL);
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set_signal_handler(SIGTERM, SIG_DFL);
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set_signal_handler(SIGHUP, child_sighup_handler);
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child_main(ptr);
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return -1;
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}
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int child_pool_create(){
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int i;
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for(i=0; i<MAXCHILDREN; i++){
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children[i].pid = 0;
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children[i].messages = 0;
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children[i].status = UNDEF;
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}
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for(i=0; i<cfg.number_of_worker_processes; i++){
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children[i].status = READY;
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children[i].pid = child_make(&children[i]);
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if(children[i].pid == -1){
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syslog(LOG_PRIORITY, "error: failed to fork a child");
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p_clean_exit();
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}
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}
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return 0;
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}
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int search_slot_by_pid(pid_t pid){
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int i;
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for(i=0; i<MAXCHILDREN; i++){
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if(children[i].pid == pid) return i;
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}
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return -1;
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}
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void kill_children(int sig){
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int i;
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for(i=0; i<MAXCHILDREN; i++){
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if(children[i].status != UNDEF && children[i].pid > 1){
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if(cfg.verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "sending signal to child (pid: %d)", children[i].pid);
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kill(children[i].pid, sig);
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}
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}
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}
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void p_clean_exit(){
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if(sd != -1) close(sd);
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kill_children(SIGTERM);
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syslog(LOG_PRIORITY, "%s has been terminated", PILERGETD_PROGNAME);
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unlink(cfg.pilergetd_pidfile);
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if(data.ctx){
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SSL_CTX_free(data.ctx);
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ERR_free_strings();
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}
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exit(1);
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}
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void fatal(char *s){
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syslog(LOG_PRIORITY, "%s\n", s);
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p_clean_exit();
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}
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int init_ssl(){
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SSL_library_init();
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SSL_load_error_strings();
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data.ctx = SSL_CTX_new(SSLv23_server_method());
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if(data.ctx == NULL){ syslog(LOG_PRIORITY, "SSL_CTX_new() failed"); return ERR; }
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if(SSL_CTX_set_cipher_list(data.ctx, cfg.cipher_list) == 0){ syslog(LOG_PRIORITY, "failed to set cipher list: '%s'", cfg.cipher_list); return ERR; }
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if(SSL_CTX_use_PrivateKey_file(data.ctx, cfg.pemfile, SSL_FILETYPE_PEM) != 1){ syslog(LOG_PRIORITY, "cannot load private key from %s", cfg.pemfile); return ERR; }
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if(SSL_CTX_use_certificate_file(data.ctx, cfg.pemfile, SSL_FILETYPE_PEM) != 1){ syslog(LOG_PRIORITY, "cannot load certificate from %s", cfg.pemfile); return ERR; }
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return OK;
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}
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void initialise_configuration(){
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cfg = read_config(configfile);
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if(cfg.number_of_worker_processes < 5) cfg.number_of_worker_processes = 5;
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if(cfg.number_of_worker_processes > MAXCHILDREN) cfg.number_of_worker_processes = MAXCHILDREN;
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if(strlen(cfg.username) > 1){
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pwd = getpwnam(cfg.username);
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if(!pwd) fatal(ERR_NON_EXISTENT_USER);
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}
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if(getuid() == 0 && pwd){
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check_and_create_directories(&cfg, pwd->pw_uid, pwd->pw_gid);
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}
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if(chdir(cfg.workdir)){
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syslog(LOG_PRIORITY, "workdir: *%s*", cfg.workdir);
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fatal(ERR_CHDIR);
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}
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setlocale(LC_MESSAGES, cfg.locale);
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setlocale(LC_CTYPE, cfg.locale);
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syslog(LOG_PRIORITY, "reloaded config: %s", configfile);
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#ifdef HAVE_MEMCACHED
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memcached_init(&(data.memc), cfg.memcached_servers, 11211);
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#endif
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}
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int main(int argc, char **argv){
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int i, rc, yes=1, daemonise=0;
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char port_string[8];
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struct addrinfo hints, *res;
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while((i = getopt(argc, argv, "c:dvVh")) > 0){
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switch(i){
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case 'c' :
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configfile = optarg;
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break;
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case 'd' :
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daemonise = 1;
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break;
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case 'v' :
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case 'V' :
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printf("%s %s, build %d, Janos SUTO <sj@acts.hu>\n\n%s\n\n", PILERGETD_PROGNAME, VERSION, get_build(), CONFIGURE_PARAMS);
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return 0;
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case 'h' :
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default :
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__fatal("usage: ...");
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}
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}
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(void) openlog(PILERGETD_PROGNAME, LOG_PID, LOG_MAIL);
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data.ctx = NULL;
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data.ssl = NULL;
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initialise_configuration();
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if(cfg.tls_enable > 0 && init_ssl() == ERR) fatal("cannot init ssl");
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set_signal_handler (SIGPIPE, SIG_IGN);
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if(read_key(&cfg)) fatal(ERR_READING_KEY);
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_UNSPEC;
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hints.ai_socktype = SOCK_STREAM;
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snprintf(port_string, sizeof(port_string)-1, "%d", cfg.pilergetd_listen_port);
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if((rc = getaddrinfo(cfg.pilergetd_listen_addr, port_string, &hints, &res)) != 0){
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fprintf(stderr, "getaddrinfo for '%s': %s\n", cfg.pilergetd_listen_addr, gai_strerror(rc));
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return 1;
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}
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if((sd = socket(res->ai_family, res->ai_socktype, res->ai_protocol)) == -1)
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fatal(ERR_OPEN_SOCKET);
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if(setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int)) == -1)
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fatal(ERR_SET_SOCK_OPT);
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if(bind(sd, res->ai_addr, res->ai_addrlen) == -1)
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fatal(ERR_BIND_TO_PORT);
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if(listen(sd, cfg.backlog) == -1)
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fatal(ERR_LISTEN);
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freeaddrinfo(res);
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if(drop_privileges(pwd)) fatal(ERR_SETUID);
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syslog(LOG_PRIORITY, "%s %s, build %d starting", PILERGETD_PROGNAME, VERSION, get_build());
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#if HAVE_DAEMON == 1
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if(daemonise == 1) i = daemon(1, 0);
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#endif
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write_pid_file(cfg.pilergetd_pidfile);
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child_pool_create();
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set_signal_handler(SIGCHLD, takesig);
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set_signal_handler(SIGTERM, takesig);
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set_signal_handler(SIGKILL, takesig);
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set_signal_handler(SIGHUP, takesig);
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for(;;){ sleep(1); }
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p_clean_exit();
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return 0;
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}
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273
src/retr.c
273
src/retr.c
@ -1,273 +0,0 @@
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/*
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* retr.c, SJ
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <signal.h>
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#include <syslog.h>
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#include <time.h>
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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#include <piler.h>
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int stat_file(struct session_data *sdata, char *f, char **buf, int buflen, struct __config *cfg){
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struct stat st;
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snprintf(*buf, buflen, "%s/%02x/%c%c%c/%c%c/%c%c/%s", cfg->queuedir, cfg->server_id, f[8], f[9], f[10], f[RND_STR_LEN-4], f[RND_STR_LEN-3], f[RND_STR_LEN-2], f[RND_STR_LEN-1], f);
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if(!stat(*buf, &st)) return st.st_size;
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#ifdef HAVE_SUPPORT_FOR_COMPAT_STORAGE_LAYOUT
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snprintf(*buf, TINYBUFSIZE-1, "%s/%02x/%c%c/%c%c/%c%c/%s", cfg->queuedir, cfg->server_id, f[RND_STR_LEN-6], f[RND_STR_LEN-5], f[RND_STR_LEN-4], f[RND_STR_LEN-3], f[RND_STR_LEN-2], f[RND_STR_LEN-1], f);
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if(!stat(*buf, &st)) return st.st_size;
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#endif
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return 0;
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}
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int stat_message(struct session_data *sdata, struct __data *data, char **buf, int buflen, struct __config *cfg){
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int i, attachments, len=0;
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struct ptr_array ptr_arr[MAX_ATTACHMENTS];
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char puf[TINYBUFSIZE];
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if(strlen(sdata->ttmpfile) != RND_STR_LEN){
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return ERR;
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}
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snprintf(*buf, buflen-2, "%s.m", sdata->ttmpfile);
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len = strlen(*buf);
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attachments = query_attachments(sdata, data, &ptr_arr[0], cfg);
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if(attachments == -1){
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return ERR;
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}
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for(i=1; i<=attachments; i++){
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if(len < buflen){
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snprintf(puf, sizeof(puf)-1, " %s.a%d", ptr_arr[i].piler_id, ptr_arr[i].attachment_id);
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strncat(*buf, puf, buflen);
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len += strlen(puf);
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}
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}
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strncat(*buf, "\r\n", buflen-2);
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return OK;
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}
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int do_ssl_handshake(struct session_data *sdata, struct __data *data, int new_sd, struct __config *cfg){
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int ssl_ok=0, rc;
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char ssl_error[SMALLBUFSIZE];
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if(data->ctx){
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data->ssl = SSL_new(data->ctx);
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if(data->ssl){
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if(SSL_set_fd(data->ssl, new_sd) == 1){
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ssl_ok = 1;
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}
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else syslog(LOG_PRIORITY, "SSL_set_fd() failed");
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}
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else syslog(LOG_PRIORITY, "SSL_new() failed");
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}
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else syslog(LOG_PRIORITY, "SSL ctx is null!");
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if(ssl_ok == 0){
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send(new_sd, SMTP_RESP_421_ERR_TMP, strlen(SMTP_RESP_421_ERR_TMP), 0);
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return ERR;
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}
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rc = SSL_accept(data->ssl);
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if(cfg->verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "SSL_accept() finished");
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if(rc == 1){
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sdata->tls = 1;
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return OK;
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}
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else {
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ERR_error_string_n(ERR_get_error(), ssl_error, SMALLBUFSIZE);
|
||||
syslog(LOG_PRIORITY, "SSL_accept() failed, rc=%d, errorcode: %d, error text: %s\n", rc, SSL_get_error(data->ssl, rc), ssl_error);
|
||||
return ERR;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
int handle_pilerget_request(int new_sd, struct __data *data, struct __config *cfg){
|
||||
int len, n, auth_ok=0, n_files=0;
|
||||
char *q, buf[MAXBUFSIZE], puf[MAXBUFSIZE], muf[TINYBUFSIZE], resp[MAXBUFSIZE];
|
||||
struct session_data sdata;
|
||||
int db_conn=0;
|
||||
struct __counters counters;
|
||||
|
||||
struct timezone tz;
|
||||
struct timeval tv1, tv2;
|
||||
|
||||
#ifdef HAVE_LIBWRAP
|
||||
struct request_info req;
|
||||
|
||||
request_init(&req, RQ_DAEMON, PILERGETD_PROGNAME, RQ_FILE, new_sd, 0);
|
||||
fromhost(&req);
|
||||
if(!hosts_access(&req)){
|
||||
send(new_sd, SMTP_RESP_550_ERR_YOU_ARE_BANNED_BY_LOCAL_POLICY, strlen(SMTP_RESP_550_ERR_YOU_ARE_BANNED_BY_LOCAL_POLICY), 0);
|
||||
syslog(LOG_PRIORITY, "denied connection from %s by tcp_wrappers", eval_client(&req));
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
init_session_data(&sdata, cfg);
|
||||
sdata.tls = 0;
|
||||
|
||||
bzero(&counters, sizeof(counters));
|
||||
|
||||
|
||||
/* open database connection */
|
||||
|
||||
db_conn = 0;
|
||||
|
||||
#ifdef NEED_MYSQL
|
||||
if(open_database(&sdata, cfg) == OK){
|
||||
db_conn = 1;
|
||||
}
|
||||
else
|
||||
syslog(LOG_PRIORITY, "%s", ERR_MYSQL_CONNECT);
|
||||
#endif
|
||||
|
||||
if(db_conn == 0){
|
||||
send(new_sd, SMTP_RESP_421_ERR_TMP, strlen(SMTP_RESP_421_ERR_TMP), 0);
|
||||
syslog(LOG_PRIORITY, "cannot make prepared statement");
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
gettimeofday(&tv1, &tz);
|
||||
|
||||
|
||||
if(cfg->tls_enable > 0){
|
||||
if(do_ssl_handshake(&sdata, data, new_sd, cfg) == ERR) goto QUITTING;
|
||||
}
|
||||
else {
|
||||
auth_ok = 1;
|
||||
}
|
||||
|
||||
|
||||
snprintf(buf, MAXBUFSIZE-1, SMTP_RESP_220_BANNER, cfg->hostid);
|
||||
|
||||
write1(new_sd, buf, strlen(buf), sdata.tls, data->ssl);
|
||||
|
||||
if(cfg->verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "sent: %s", buf);
|
||||
|
||||
while((n = recvtimeoutssl(new_sd, puf, MAXBUFSIZE, TIMEOUT, sdata.tls, data->ssl)) > 0){
|
||||
|
||||
if(strncasecmp(puf, "MESSAGE ", strlen("MESSAGE ")) == 0 && auth_ok == 1){
|
||||
trimBuffer(puf);
|
||||
q = &resp[0];
|
||||
|
||||
memset(resp, 0, sizeof(resp));
|
||||
|
||||
snprintf(sdata.ttmpfile, sizeof(sdata.ttmpfile)-1, "%s", &puf[8]);
|
||||
stat_message(&sdata, data, &q, sizeof(resp)-2, cfg);
|
||||
|
||||
write1(new_sd, resp, strlen(resp), sdata.tls, data->ssl);
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
|
||||
if(strncasecmp(puf, "AUTH ", strlen("AUTH ")) == 0){
|
||||
trimBuffer(puf);
|
||||
q = &muf[0];
|
||||
|
||||
if(strcmp(&puf[5], cfg->pilergetd_password)){
|
||||
snprintf(resp, sizeof(resp)-1, "550 AUTH FAILED\r\n");
|
||||
}
|
||||
else {
|
||||
snprintf(resp, sizeof(resp)-1, "250 AUTH\r\n");
|
||||
auth_ok = 1;
|
||||
}
|
||||
|
||||
write1(new_sd, resp, strlen(resp), sdata.tls, data->ssl);
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
|
||||
if(strncasecmp(puf, "STAT ", strlen("STAT ")) == 0 && auth_ok == 1){
|
||||
trimBuffer(puf);
|
||||
q = &muf[0];
|
||||
|
||||
len = stat_file(&sdata, &puf[5], &q, sizeof(muf)-2, cfg);
|
||||
|
||||
snprintf(resp, sizeof(resp)-1, "SIZE %s %d\r\n", &puf[5], len);
|
||||
|
||||
write1(new_sd, resp, strlen(resp), sdata.tls, data->ssl);
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
|
||||
if(strncasecmp(puf, "RETR ", strlen("RETR ")) == 0 && auth_ok == 1){
|
||||
|
||||
trimBuffer(puf);
|
||||
q = &muf[0];
|
||||
|
||||
if(strlen(&puf[5]) >= RND_STR_LEN){
|
||||
len = stat_file(&sdata, &puf[5], &q, sizeof(muf)-2, cfg);
|
||||
file_from_archive_to_network(muf, new_sd, sdata.tls, data, cfg);
|
||||
n_files++;
|
||||
}
|
||||
else {
|
||||
snprintf(resp, sizeof(resp)-1, "ERR\r\n");
|
||||
write1(new_sd, resp, strlen(resp), sdata.tls, data->ssl);
|
||||
}
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
|
||||
if(strncasecmp(puf, SMTP_CMD_QUIT, strlen(SMTP_CMD_QUIT)) == 0){
|
||||
snprintf(resp, sizeof(resp)-1, SMTP_RESP_221_GOODBYE, cfg->hostid);
|
||||
write1(new_sd, resp, strlen(resp), sdata.tls, data->ssl);
|
||||
|
||||
gettimeofday(&tv2, &tz);
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
snprintf(resp, sizeof(resp)-1, "550 ERR INVALID COMMAND\r\n");
|
||||
write1(new_sd, resp, strlen(resp), sdata.tls, data->ssl);
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
QUITTING:
|
||||
|
||||
#ifdef NEED_MYSQL
|
||||
close_database(&sdata);
|
||||
#endif
|
||||
|
||||
SSL_shutdown(data->ssl);
|
||||
SSL_free(data->ssl);
|
||||
|
||||
if(cfg->verbosity >= _LOG_DEBUG) syslog(LOG_PRIORITY, "served %d files", n_files);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user