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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <string.h> |
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#include <limits.h> |
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#include <errno.h> |
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#include <setjmp.h> |
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#include <locale.h> |
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|
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#include "config.h" |
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#include "imapfilter.h" |
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#include "data.h" |
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|
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#if defined SSL_TLS || defined ENCRYPTED_PASSWORDS |
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#include <openssl/crypto.h> |
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#endif |
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|
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|
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extern int sockpri; |
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extern account_t *accounts; |
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extern filter_t *filters; |
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extern namesp_t nsppri; |
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|
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unsigned int options; /* Program options. */ |
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unsigned int flags = 0; /* Program flags. */ |
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unsigned int capabilities; /* Capabilities of mail server. */ |
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unsigned int interval = 0; /* Poll at the specified interval. */ |
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|
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char authmech[AUTH_MECH_LEN]; /* Authentication mechanisms. */ |
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char logfile[PATH_MAX]; /* Log file. */ |
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char *home = NULL; /* User's home directory. */ |
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char charset[CHARSET_LEN]; /* Charset for IMAP SEARCH requests. */ |
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|
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#ifdef MEMORY_LOCK |
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uid_t ruid, euid; /* Real and effective UID. */ |
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|
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#endif |
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jmp_buf acctloop; |
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|
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|
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/* |
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* In the beginning there was main()... |
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*/ |
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int |
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main(int argc, char *argv[]) |
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{ |
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int c, r, f; |
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pid_t pid; |
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char *confile; /* Configuration file. */ |
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account_t *ca; /* Current account. */ |
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mbox_t *cm; /* Current mailbox. */ |
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|
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#ifdef MEMORY_LOCK |
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ruid = getuid(); |
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euid = geteuid(); |
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seteuid(ruid); /* Drop root privileges. */ |
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#endif |
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|
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setlocale(LC_ALL, ""); |
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|
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f = 0; |
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home = getenv("HOME"); |
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options = (OPTION_DETAILS_NORMAL | OPTION_NAMESPACE | OPTION_WARNING); |
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*charset = 0; |
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*logfile = 0; |
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confile = NULL; |
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|
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while ((c = getopt(argc, argv, "c:d:hkl:" |
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#ifdef ENCRYPTED_PASSWORDS |
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"p" |
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#endif |
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"qvV")) != -1) { |
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switch (c) { |
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case 'c': |
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confile = optarg; |
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break; |
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case 'd': |
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options |= OPTION_DAEMON_MODE; |
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errno = 0; |
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interval = strtoul(optarg, NULL, 10); |
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if (errno) |
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interval = 0; |
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break; |
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case 'h': |
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usage(); |
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exit(ERROR_UNDEFINED); |
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break; |
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case 'k': |
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kill_imapfilter(); |
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break; |
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case 'l': |
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strncat(logfile, optarg, PATH_MAX - 1); |
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break; |
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#ifdef ENCRYPTED_PASSWORDS |
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case 'p': |
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options |= OPTION_PASSWORD_EDITOR; |
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break; |
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#endif |
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case 'q': |
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options &= OPTION_DETAILS_CLEAR; |
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options |= OPTION_DETAILS_QUIET; |
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break; |
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case 'v': |
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options &= OPTION_DETAILS_CLEAR; |
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options |= OPTION_DETAILS_VERBOSE; |
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break; |
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case 'V': |
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version(); |
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exit(ERROR_UNDEFINED); |
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break; |
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default: |
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usage(); |
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exit(ERROR_UNDEFINED); |
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break; |
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} |
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} |
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|
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create_homedir(); |
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|
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lockfile_check(); |
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lockfile_create(); |
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|
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corefile_disable(); |
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|
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tty_store(); |
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catch_signals(); |
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|
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read_config(confile); |
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|
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#ifdef ENCRYPTED_PASSWORDS |
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read_passwords(); |
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|
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if ((options & OPTION_PASSWORD_EDITOR)) { |
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password_editor(); |
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|
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secmem_clear(); |
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lockfile_remove(); |
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|
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exit(0); |
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} |
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#endif |
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|
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open_logfile(); |
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|
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init_vbuf(); |
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|
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if (options & OPTION_DAEMON_MODE) { |
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f = 1; |
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options &= OPTION_DETAILS_CLEAR; |
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options |= OPTION_DETAILS_QUIET; |
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} |
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do { |
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for (ca = accounts; ca != NULL; ca = ca->next) { |
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|
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if (setjmp(acctloop)) |
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continue; |
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|
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if (init_connection(&sockpri, ca->server, ca->port, |
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ca->ssl)) |
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continue; |
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|
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r = greeting_response(&sockpri); |
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|
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#ifdef DEBUG |
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test(&sockpri); |
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#endif |
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|
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if (check_capabilities(&sockpri)) |
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continue; |
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|
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log_info(LOG_ACCOUNT, ca->key); |
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|
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if (r != RESPONSE_PREAUTH) { |
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if (ca->passwdattr == PASSWORD_NONE) { |
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printf("Enter password for %s@%s: ", |
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ca->username, ca->server); |
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get_password(ca->password, PASSWORD_LEN); |
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ca->passwdattr = PASSWORD_PLAIN; |
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} |
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if (login(&sockpri, ca->username, |
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ca->password) == RESPONSE_NO) { |
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error("username %s or password rejected " |
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"at %s\n", ca->username, ca->server); |
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continue; |
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} |
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} |
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check_namespace(&sockpri, &nsppri); |
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|
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for (cm = ca->mboxes; cm != NULL; cm = cm->next) |
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if (*cm->filters == NULL) |
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mailbox_status(&sockpri, cm->name, |
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&nsppri); |
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else if (!select_mailbox(&sockpri, cm->name, |
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&nsppri)) { |
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apply_filters(cm->name, cm->filters); |
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close_mailbox(&sockpri); |
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} |
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logout(&sockpri); |
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|
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close_connection(&sockpri); |
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} |
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|
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/* Fork if in daemon mode. */ |
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if (f) { |
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f = 0; |
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pid = fork(); |
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switch (pid) { |
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case -1: |
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fatal(ERROR_FORK, "forking; %s\n", |
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strerror(errno)); |
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break; |
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case 0: |
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#ifdef MEMORY_LOCK |
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secmem_lock(); |
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setuid(ruid); /* Capability to regain root |
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* privileges will not be |
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* needed any more. */ |
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#endif |
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lockfile_create(); |
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corefile_disable(); |
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flags |= FLAG_DAEMON_MODE; |
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break; |
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default: |
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secmem_clear(); |
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close_logfile(); |
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exit(0); |
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break; |
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} |
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} |
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if (interval) |
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sleep(interval); |
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} while (options & OPTION_DAEMON_MODE && interval); |
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|
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secmem_clear(); |
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close_logfile(); |
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|
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lockfile_remove(); |
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|
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exit(0); |
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} |
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|
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|
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/* |
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* Print a very brief usage message. |
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*/ |
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void |
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usage(void) |
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{ |
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fprintf(stderr, |
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"usage: imapfilter [-hk" |
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#ifdef ENCRYPTED_PASSWORDS |
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"p" |
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#endif |
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"qvV] [-c configfile] [-d interval] [-l logfile]\n"); |
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} |
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|
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|
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/* |
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* Print program's version, and if it is built in, OpenSSL's version number. |
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*/ |
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void |
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version(void) |
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{ |
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fprintf(stderr, "IMAPFilter %s" |
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#if defined SSL_TLS || defined ENCRYPTED_PASSWORDS |
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", OpenSSL 0x%8.8lx" |
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#endif |
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"\n", IMAPFILTER_VERSION |
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#if defined SSL_TLS || defined ENCRYPTED_PASSWORDS |
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,SSLeay() |
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#endif |
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); |
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} |
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