diff options
Diffstat (limited to 'crypto/kerberosIV/appl/push/push.c')
| -rw-r--r-- | crypto/kerberosIV/appl/push/push.c | 795 |
1 files changed, 0 insertions, 795 deletions
diff --git a/crypto/kerberosIV/appl/push/push.c b/crypto/kerberosIV/appl/push/push.c deleted file mode 100644 index bc7574fa634e..000000000000 --- a/crypto/kerberosIV/appl/push/push.c +++ /dev/null @@ -1,795 +0,0 @@ -/* - * Copyright (c) 1997-1999 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 3. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include "push_locl.h" -RCSID("$Id: push.c,v 1.34.2.1 1999/12/06 17:25:28 assar Exp $"); - -#ifdef KRB4 -static int use_v4 = -1; -#endif - -#ifdef KRB5 -static int use_v5 = -1; -static krb5_context context; -#endif - -static char *port_str; -static int verbose_level; -static int do_fork; -static int do_leave; -static int do_version; -static int do_help; -static int do_from; -static int do_count; -static char *header_str; - -struct getargs args[] = { -#ifdef KRB4 - { "krb4", '4', arg_flag, &use_v4, "Use Kerberos V4", - NULL }, -#endif -#ifdef KRB5 - { "krb5", '5', arg_flag, &use_v5, "Use Kerberos V5", - NULL }, -#endif - { "verbose",'v', arg_counter, &verbose_level, "Verbose", - NULL }, - { "fork", 'f', arg_flag, &do_fork, "Fork deleting proc", - NULL }, - { "leave", 'l', arg_flag, &do_leave, "Leave mail on server", - NULL }, - { "port", 'p', arg_string, &port_str, "Use this port", - "number-or-service" }, - { "from", 0, arg_flag, &do_from, "Behave like from", - NULL }, - { "header", 0, arg_string, &header_str, "Header string to print", NULL }, - { "count", 'c', arg_flag, &do_count, "Print number of messages", NULL}, - { "version", 0, arg_flag, &do_version, "Print version", - NULL }, - { "help", 0, arg_flag, &do_help, NULL, - NULL } - -}; - -static void -usage (int ret) -{ - arg_printusage (args, - sizeof(args) / sizeof(args[0]), - NULL, - "[[{po:username[@hostname] | hostname[:username]}] ...]" - "filename"); - exit (ret); -} - -static int -do_connect (const char *hostname, int port, int nodelay) -{ - struct hostent *hostent = NULL; - char **h; - int error; - int af; - int s; - -#ifdef HAVE_IPV6 - if (hostent == NULL) - hostent = getipnodebyname (hostname, AF_INET6, 0, &error); -#endif - if (hostent == NULL) - hostent = getipnodebyname (hostname, AF_INET, 0, &error); - - if (hostent == NULL) - errx(1, "gethostbyname '%s' failed: %s", hostname, hstrerror(error)); - - af = hostent->h_addrtype; - - for (h = hostent->h_addr_list; *h != NULL; ++h) { - struct sockaddr_storage sa_ss; - struct sockaddr *sa = (struct sockaddr *)&sa_ss; - - sa->sa_family = af; - socket_set_address_and_port (sa, *h, port); - - s = socket (af, SOCK_STREAM, 0); - if (s < 0) - err (1, "socket"); - if (connect(s, sa, socket_sockaddr_size(sa)) < 0) { - warn ("connect(%s)", hostname); - close (s); - continue; - } else { - break; - } - } - freehostent (hostent); - if (*h == NULL) - return -1; - if(setsockopt(s, IPPROTO_TCP, TCP_NODELAY, - (void *)&nodelay, sizeof(nodelay)) < 0) - err (1, "setsockopt TCP_NODELAY"); - return s; -} - -typedef enum { INIT = 0, GREET, USER, PASS, STAT, RETR, TOP, - DELE, XDELE, QUIT} pop_state; - -#define PUSH_BUFSIZ 65536 - -#define STEP 16 - -struct write_state { - struct iovec *iovecs; - size_t niovecs, maxiovecs, allociovecs; - int fd; -}; - -static void -write_state_init (struct write_state *w, int fd) -{ -#ifdef UIO_MAXIOV - w->maxiovecs = UIO_MAXIOV; -#else - w->maxiovecs = 16; -#endif - w->allociovecs = min(STEP, w->maxiovecs); - w->niovecs = 0; - w->iovecs = malloc(w->allociovecs * sizeof(*w->iovecs)); - if (w->iovecs == NULL) - err (1, "malloc"); - w->fd = fd; -} - -static void -write_state_add (struct write_state *w, void *v, size_t len) -{ - if(w->niovecs == w->allociovecs) { - if(w->niovecs == w->maxiovecs) { - if(writev (w->fd, w->iovecs, w->niovecs) < 0) - err(1, "writev"); - w->niovecs = 0; - } else { - w->allociovecs = min(w->allociovecs + STEP, w->maxiovecs); - w->iovecs = realloc (w->iovecs, - w->allociovecs * sizeof(*w->iovecs)); - if (w->iovecs == NULL) - errx (1, "realloc"); - } - } - w->iovecs[w->niovecs].iov_base = v; - w->iovecs[w->niovecs].iov_len = len; - ++w->niovecs; -} - -static void -write_state_flush (struct write_state *w) -{ - if (w->niovecs) { - if (writev (w->fd, w->iovecs, w->niovecs) < 0) - err (1, "writev"); - w->niovecs = 0; - } -} - -static void -write_state_destroy (struct write_state *w) -{ - free (w->iovecs); -} - -static int -doit(int s, - const char *host, - const char *user, - const char *outfilename, - const char *header_str, - int leavep, - int verbose, - int forkp) -{ - int ret; - char out_buf[PUSH_BUFSIZ]; - size_t out_len = 0; - char in_buf[PUSH_BUFSIZ + 1]; /* sentinel */ - size_t in_len = 0; - char *in_ptr = in_buf; - pop_state state = INIT; - unsigned count, bytes; - unsigned asked_for = 0, retrieved = 0, asked_deleted = 0, deleted = 0; - unsigned sent_xdele = 0; - int out_fd; - char from_line[128]; - size_t from_line_length; - time_t now; - struct write_state write_state; - - if (do_from) { - out_fd = -1; - if (verbose) - fprintf (stderr, "%s@%s\n", user, host); - } else { - out_fd = open(outfilename, O_WRONLY | O_APPEND | O_CREAT, 0666); - if (out_fd < 0) - err (1, "open %s", outfilename); - if (verbose) - fprintf (stderr, "%s@%s -> %s\n", user, host, outfilename); - } - - now = time(NULL); - from_line_length = snprintf (from_line, sizeof(from_line), - "From %s %s", "push", ctime(&now)); - - out_len = snprintf (out_buf, sizeof(out_buf), - "USER %s\r\nPASS hej\r\nSTAT\r\n", - user); - if (net_write (s, out_buf, out_len) != out_len) - err (1, "write"); - if (verbose > 1) - write (STDERR_FILENO, out_buf, out_len); - - if (!do_from) - write_state_init (&write_state, out_fd); - - while(state != QUIT) { - fd_set readset, writeset; - - FD_ZERO(&readset); - FD_ZERO(&writeset); - FD_SET(s,&readset); - if (((state == STAT || state == RETR || state == TOP) - && asked_for < count) - || (state == XDELE && !sent_xdele) - || (state == DELE && asked_deleted < count)) - FD_SET(s,&writeset); - ret = select (s + 1, &readset, &writeset, NULL, NULL); - if (ret < 0) { - if (errno == EAGAIN) - continue; - else - err (1, "select"); - } - - if (FD_ISSET(s, &readset)) { - char *beg, *p; - size_t rem; - int blank_line = 0; - - ret = read (s, in_ptr, sizeof(in_buf) - in_len - 1); - if (ret < 0) - err (1, "read"); - else if (ret == 0) - errx (1, "EOF during read"); - - in_len += ret; - in_ptr += ret; - *in_ptr = '\0'; - - beg = in_buf; - rem = in_len; - while(rem > 1 - && (p = strstr(beg, "\r\n")) != NULL) { - if (state == TOP) { - char *copy = beg; - - if (strncasecmp(copy, - header_str, - min(p - copy + 1, strlen(header_str))) == 0) { - fprintf (stdout, "%.*s\n", (int)(p - copy), copy); - } - if (beg[0] == '.' && beg[1] == '\r' && beg[2] == '\n') { - state = STAT; - if (++retrieved == count) { - state = QUIT; - net_write (s, "QUIT\r\n", 6); - if (verbose > 1) - net_write (STDERR_FILENO, "QUIT\r\n", 6); - } - } - rem -= p - beg + 2; - beg = p + 2; - } else if (state == RETR) { - char *copy = beg; - if (beg[0] == '.') { - if (beg[1] == '\r' && beg[2] == '\n') { - if(!blank_line) - write_state_add(&write_state, "\n", 1); - state = STAT; - rem -= p - beg + 2; - beg = p + 2; - if (++retrieved == count) { - write_state_flush (&write_state); - if (fsync (out_fd) < 0) - err (1, "fsync"); - close(out_fd); - if (leavep) { - state = QUIT; - net_write (s, "QUIT\r\n", 6); - if (verbose > 1) - net_write (STDERR_FILENO, "QUIT\r\n", 6); - } else { - if (forkp) { - pid_t pid; - - pid = fork(); - if (pid < 0) - warn ("fork"); - else if(pid != 0) { - if(verbose) - fprintf (stderr, - "(exiting)"); - return 0; - } - } - - state = XDELE; - if (verbose) - fprintf (stderr, "deleting... "); - } - } - continue; - } else - ++copy; - } - *p = '\n'; - if(blank_line && - strncmp(copy, "From ", min(p - copy + 1, 5)) == 0) - write_state_add(&write_state, ">", 1); - write_state_add(&write_state, copy, p - copy + 1); - blank_line = (*copy == '\n'); - rem -= p - beg + 2; - beg = p + 2; - } else if (rem >= 3 && strncmp (beg, "+OK", 3) == 0) { - if (state == STAT) { - if (!do_from) - write_state_add(&write_state, - from_line, from_line_length); - blank_line = 0; - if (do_from) - state = TOP; - else - state = RETR; - } else if (state == XDELE) { - state = QUIT; - net_write (s, "QUIT\r\n", 6); - if (verbose > 1) - net_write (STDERR_FILENO, "QUIT\r\n", 6); - break; - } else if (state == DELE) { - if (++deleted == count) { - state = QUIT; - net_write (s, "QUIT\r\n", 6); - if (verbose > 1) - net_write (STDERR_FILENO, "QUIT\r\n", 6); - break; - } - } else if (++state == STAT) { - if(sscanf (beg + 4, "%u %u", &count, &bytes) != 2) - errx(1, "Bad STAT-line: %.*s", (int)(p - beg), beg); - if (verbose) { - fprintf (stderr, "%u message(s) (%u bytes). " - "fetching... ", - count, bytes); - if (do_from) - fprintf (stderr, "\n"); - } else if (do_count) { - fprintf (stderr, "%u message(s) (%u bytes).\n", - count, bytes); - } - if (count == 0) { - state = QUIT; - net_write (s, "QUIT\r\n", 6); - if (verbose > 1) - net_write (STDERR_FILENO, "QUIT\r\n", 6); - break; - } - } - - rem -= p - beg + 2; - beg = p + 2; - } else { - if(state == XDELE) { - state = DELE; - rem -= p - beg + 2; - beg = p + 2; - } else - errx (1, "Bad response: %.*s", (int)(p - beg), beg); - } - } - if (!do_from) - write_state_flush (&write_state); - - memmove (in_buf, beg, rem); - in_len = rem; - in_ptr = in_buf + rem; - } - if (FD_ISSET(s, &writeset)) { - if ((state == STAT && !do_from) || state == RETR) - out_len = snprintf (out_buf, sizeof(out_buf), - "RETR %u\r\n", ++asked_for); - else if ((state == STAT && do_from) || state == TOP) - out_len = snprintf (out_buf, sizeof(out_buf), - "TOP %u 0\r\n", ++asked_for); - else if(state == XDELE) { - out_len = snprintf(out_buf, sizeof(out_buf), - "XDELE %u %u\r\n", 1, count); - sent_xdele++; - } - else if(state == DELE) - out_len = snprintf (out_buf, sizeof(out_buf), - "DELE %u\r\n", ++asked_deleted); - if (net_write (s, out_buf, out_len) != out_len) - err (1, "write"); - if (verbose > 1) - write (STDERR_FILENO, out_buf, out_len); - } - } - if (verbose) - fprintf (stderr, "Done\n"); - if (!do_from) - write_state_destroy (&write_state); - return 0; -} - -#ifdef KRB5 -static int -do_v5 (const char *host, - int port, - const char *user, - const char *filename, - const char *header_str, - int leavep, - int verbose, - int forkp) -{ - krb5_error_code ret; - krb5_auth_context auth_context = NULL; - krb5_principal server; - int s; - - s = do_connect (host, port, 1); - if (s < 0) - return 1; - - ret = krb5_sname_to_principal (context, - host, - "pop", - KRB5_NT_SRV_HST, - &server); - if (ret) { - warnx ("krb5_sname_to_principal: %s", - krb5_get_err_text (context, ret)); - return 1; - } - - ret = krb5_sendauth (context, - &auth_context, - &s, - "KPOPV1.0", - NULL, - server, - 0, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL); - krb5_free_principal (context, server); - if (ret) { - warnx ("krb5_sendauth: %s", - krb5_get_err_text (context, ret)); - return 1; - } - return doit (s, host, user, filename, header_str, leavep, verbose, forkp); -} -#endif - -#ifdef KRB4 -static int -do_v4 (const char *host, - int port, - const char *user, - const char *filename, - const char *header_str, - int leavep, - int verbose, - int forkp) -{ - KTEXT_ST ticket; - MSG_DAT msg_data; - CREDENTIALS cred; - des_key_schedule sched; - int s; - int ret; - - s = do_connect (host, port, 1); - if (s < 0) - return 1; - ret = krb_sendauth(0, - s, - &ticket, - "pop", - (char *)host, - krb_realmofhost(host), - getpid(), - &msg_data, - &cred, - sched, - NULL, - NULL, - "KPOPV0.1"); - if(ret) { - warnx("krb_sendauth: %s", krb_get_err_text(ret)); - return 1; - } - return doit (s, host, user, filename, header_str, leavep, verbose, forkp); -} -#endif /* KRB4 */ - -#ifdef HESIOD - -#ifdef HESIOD_INTERFACES - -static char * -hesiod_get_pobox (const char **user) -{ - void *context; - struct hesiod_postoffice *hpo; - char *ret = NULL; - - if(hesiod_init (&context) != 0) - err (1, "hesiod_init"); - - hpo = hesiod_getmailhost (context, *user); - if (hpo == NULL) { - warn ("hesiod_getmailhost %s", *user); - } else { - if (strcasecmp(hpo->hesiod_po_type, "pop") != 0) - errx (1, "Unsupported po type %s", hpo->hesiod_po_type); - - ret = strdup(hpo->hesiod_po_host); - if(ret == NULL) - errx (1, "strdup: out of memory"); - *user = strdup(hpo->hesiod_po_name); - if (*user == NULL) - errx (1, "strdup: out of memory"); - hesiod_free_postoffice (context, hpo); - } - hesiod_end (context); - return ret; -} - -#else /* !HESIOD_INTERFACES */ - -static char * -hesiod_get_pobox (const char **user) -{ - char *ret = NULL; - struct hes_postoffice *hpo; - - hpo = hes_getmailhost (*user); - if (hpo == NULL) { - warn ("hes_getmailhost %s", *user); - } else { - if (strcasecmp(hpo->po_type, "pop") != 0) - errx (1, "Unsupported po type %s", hpo->po_type); - - ret = strdup(hpo->po_host); - if(ret == NULL) - errx (1, "strdup: out of memory"); - *user = strdup(hpo->po_name); - if (*user == NULL) - errx (1, "strdup: out of memory"); - } - return ret; -} - -#endif /* HESIOD_INTERFACES */ - -#endif /* HESIOD */ - -static char * -get_pobox (const char **user) -{ - char *ret = NULL; - -#ifdef HESIOD - ret = hesiod_get_pobox (user); -#endif - - if (ret == NULL) - ret = getenv("MAILHOST"); - if (ret == NULL) - errx (1, "MAILHOST not set"); - return ret; -} - -static void -parse_pobox (char *a0, const char **host, const char **user) -{ - const char *h, *u; - char *p; - int po = 0; - - if (a0 == NULL) { - - *user = getenv ("USERNAME"); - if (*user == NULL) { - struct passwd *pwd = getpwuid (getuid ()); - - if (pwd == NULL) - errx (1, "Who are you?"); - *user = strdup (pwd->pw_name); - if (*user == NULL) - errx (1, "strdup: out of memory"); - } - *host = get_pobox (user); - return; - } - - /* if the specification starts with po:, remember this information */ - if(strncmp(a0, "po:", 3) == 0) { - a0 += 3; - po++; - } - /* if there is an `@', the hostname is after it, otherwise at the - beginning of the string */ - p = strchr(a0, '@'); - if(p != NULL) { - *p++ = '\0'; - h = p; - } else { - h = a0; - } - /* if there is a `:', the username comes before it, otherwise at - the beginning of the string */ - p = strchr(a0, ':'); - if(p != NULL) { - *p++ = '\0'; - u = p; - } else { - u = a0; - } - if(h == u) { - /* some inconsistent compatibility with various mailers */ - if(po) { - h = get_pobox (&u); - } else { - u = get_default_username (); - if (u == NULL) - errx (1, "Who are you?"); - } - } - *host = h; - *user = u; -} - -int -main(int argc, char **argv) -{ - int port = 0; - int optind = 0; - int ret = 1; - const char *host, *user, *filename = NULL; - char *pobox = NULL; - - set_progname (argv[0]); - -#ifdef KRB5 - krb5_init_context (&context); -#endif - - if (getarg (args, sizeof(args) / sizeof(args[0]), argc, argv, - &optind)) - usage (1); - - argc -= optind; - argv += optind; - -#if defined(KRB4) && defined(KRB5) - if(use_v4 == -1 && use_v5 == 1) - use_v4 = 0; - if(use_v5 == -1 && use_v4 == 1) - use_v5 = 0; -#endif - - if (do_help) - usage (0); - - if (do_version) { - print_version(NULL); - return 0; - } - - if (do_from && header_str == NULL) - header_str = "From:"; - else if (header_str != NULL) - do_from = 1; - - if (do_from) { - if (argc == 0) - pobox = NULL; - else if (argc == 1) - pobox = argv[0]; - else - usage (1); - } else { - if (argc == 1) { - filename = argv[0]; - pobox = NULL; - } else if (argc == 2) { - filename = argv[1]; - pobox = argv[0]; - } else - usage (1); - } - - if (port_str) { - struct servent *s = roken_getservbyname (port_str, "tcp"); - - if (s) - port = s->s_port; - else { - char *ptr; - - port = strtol (port_str, &ptr, 10); - if (port == 0 && ptr == port_str) - errx (1, "Bad port `%s'", port_str); - port = htons(port); - } - } - if (port == 0) -#ifdef KRB5 - port = krb5_getportbyname (context, "kpop", "tcp", 1109); -#elif defined(KRB4) - port = k_getportbyname ("kpop", "tcp", 1109); -#else -#error must define KRB4 or KRB5 -#endif - - parse_pobox (pobox, &host, &user); - -#ifdef KRB5 - if (ret && use_v5) { - ret = do_v5 (host, port, user, filename, header_str, - do_leave, verbose_level, do_fork); - } -#endif - -#ifdef KRB4 - if (ret && use_v4) { - ret = do_v4 (host, port, user, filename, header_str, - do_leave, verbose_level, do_fork); - } -#endif /* KRB4 */ - return ret; -} |