diff options
Diffstat (limited to 'appl/popper/pop_init.c')
| -rw-r--r-- | appl/popper/pop_init.c | 364 |
1 files changed, 0 insertions, 364 deletions
diff --git a/appl/popper/pop_init.c b/appl/popper/pop_init.c deleted file mode 100644 index ee550bd7f723..000000000000 --- a/appl/popper/pop_init.c +++ /dev/null @@ -1,364 +0,0 @@ -/* - * Copyright (c) 1989 Regents of the University of California. - * All rights reserved. The Berkeley software License Agreement - * specifies the terms and conditions for redistribution. - */ - -#include <popper.h> -RCSID("$Id$"); - - -#if defined(KRB5) - -static int -pop_net_read(POP *p, int fd, void *buf, size_t len) -{ -#ifdef KRB5 - return krb5_net_read(p->context, &fd, buf, len); -#else -#error must define KRB5 -#endif -} -#endif - -static char *addr_log; - -static void -pop_write_addr(POP *p, struct sockaddr *addr) -{ - char ts[32]; - char as[128]; - time_t t; - FILE *f; - if(addr_log == NULL) - return; - t = time(NULL); - strftime(ts, sizeof(ts), "%Y%m%d%H%M%S", localtime(&t)); - if(inet_ntop (addr->sa_family, socket_get_address(addr), - as, sizeof(as)) == NULL) { - pop_log(p, POP_PRIORITY, "failed to print address"); - return; - } - - f = fopen(addr_log, "a"); - if(f == NULL) { - pop_log(p, POP_PRIORITY, "failed to open address log (%s)", addr_log); - return; - } - fprintf(f, "%s %s\n", as, ts); - fclose(f); -} - -#ifdef KRB5 -static int -krb5_authenticate (POP *p, int s, u_char *buf, struct sockaddr *addr) -{ - krb5_error_code ret; - krb5_auth_context auth_context = NULL; - uint32_t len; - krb5_ticket *ticket; - char *server; - - if (memcmp (buf, "\x00\x00\x00\x13", 4) != 0) - return -1; - len = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | (buf[3]); - - if (krb5_net_read(p->context, &s, buf, len) != len) - return -1; - if (len != sizeof(KRB5_SENDAUTH_VERSION) - || memcmp (buf, KRB5_SENDAUTH_VERSION, len) != 0) - return -1; - - ret = krb5_recvauth (p->context, - &auth_context, - &s, - "KPOPV1.0", - NULL, /* let rd_req figure out what server to use */ - KRB5_RECVAUTH_IGNORE_VERSION, - NULL, - &ticket); - if (ret) { - pop_log(p, POP_PRIORITY, "krb5_recvauth: %s", - krb5_get_err_text(p->context, ret)); - return -1; - } - - - ret = krb5_unparse_name(p->context, ticket->server, &server); - if(ret) { - pop_log(p, POP_PRIORITY, "krb5_unparse_name: %s", - krb5_get_err_text(p->context, ret)); - ret = -1; - goto out; - } - /* does this make sense? */ - if(strncmp(server, "pop/", 4) != 0) { - pop_log(p, POP_PRIORITY, - "Got ticket for service `%s'", server); - ret = -1; - goto out; - } else if(p->debug) - pop_log(p, POP_DEBUG, - "Accepted ticket for service `%s'", server); - free(server); - out: - krb5_auth_con_free (p->context, auth_context); - krb5_copy_principal (p->context, ticket->client, &p->principal); - krb5_free_ticket (p->context, ticket); - - return ret; -} -#endif - -static int -krb_authenticate(POP *p, struct sockaddr *addr) -{ -#if defined(KRB5) - u_char buf[BUFSIZ]; - - if (pop_net_read (p, 0, buf, 4) != 4) { - pop_msg(p, POP_FAILURE, "Reading four bytes: %s", - strerror(errno)); - exit (1); - } - if (krb5_authenticate (p, 0, buf, addr) == 0){ - pop_write_addr(p, addr); - p->version = 5; - return POP_SUCCESS; - } -#endif - exit (1); - - return(POP_SUCCESS); -} - -static int -plain_authenticate (POP *p, struct sockaddr *addr) -{ - return(POP_SUCCESS); -} - -static int kerberos_flag; -static char *auth_str; -static int debug_flag; -static int interactive_flag; -static char *port_str; -static char *trace_file; -static int timeout; -static int help_flag; -static int version_flag; - -static struct getargs args[] = { -#if defined(KRB5) - { "kerberos", 'k', arg_flag, &kerberos_flag, "use kerberos" }, -#endif - { "auth-mode", 'a', arg_string, &auth_str, "required authentication", - "plaintext" -#ifdef OTP - "|otp" -#endif -#ifdef SASL - "|sasl" -#endif - }, - { "debug", 'd', arg_flag, &debug_flag }, - { "interactive", 'i', arg_flag, &interactive_flag, "create new socket" }, - { "port", 'p', arg_string, &port_str, "port to listen to", "port" }, - { "trace-file", 't', arg_string, &trace_file, "trace all command to file", "file" }, - { "timeout", 'T', arg_integer, &timeout, "timeout", "seconds" }, - { "address-log", 0, arg_string, &addr_log, "enable address log", "file" }, - { "help", 'h', arg_flag, &help_flag }, - { "version", 'v', arg_flag, &version_flag } -}; - -static int num_args = sizeof(args) / sizeof(args[0]); - -/* - * init: Start a Post Office Protocol session - */ - -static int -pop_getportbyname(POP *p, const char *service, - const char *proto, short def) -{ -#ifdef KRB5 - return krb5_getportbyname(p->context, service, proto, def); -#else - return htons(default); -#endif -} - -int -pop_init(POP *p,int argcount,char **argmessage) -{ - struct sockaddr_storage cs_ss; - struct sockaddr *cs = (struct sockaddr *)&cs_ss; - socklen_t len; - char * trace_file_name = "/tmp/popper-trace"; - int portnum = 0; - int optind = 0; - int error; - - /* Initialize the POP parameter block */ - memset (p, 0, sizeof(POP)); - - setprogname(argmessage[0]); - - /* Save my name in a global variable */ - p->myname = (char*)getprogname(); - - /* Get the name of our host */ - gethostname(p->myhost,MaxHostNameLen); - -#ifdef KRB5 - { - krb5_error_code ret; - - ret = krb5_init_context (&p->context); - if (ret) - errx (1, "krb5_init_context failed: %d", ret); - - krb5_openlog(p->context, p->myname, &p->logf); - krb5_set_warn_dest(p->context, p->logf); - } -#else - /* Open the log file */ - roken_openlog(p->myname,POP_LOGOPTS,POP_FACILITY); -#endif - - p->auth_level = AUTH_NONE; - - if(getarg(args, num_args, argcount, argmessage, &optind)){ - arg_printusage(args, num_args, NULL, ""); - exit(1); - } - if(help_flag){ - arg_printusage(args, num_args, NULL, ""); - exit(0); - } - if(version_flag){ - print_version(NULL); - exit(0); - } - - argcount -= optind; - argmessage += optind; - - if (argcount != 0) { - arg_printusage(args, num_args, NULL, ""); - exit(1); - } - - if(auth_str){ - if (strcasecmp (auth_str, "plaintext") == 0 || - strcasecmp (auth_str, "none") == 0) - p->auth_level = AUTH_NONE; - else if(strcasecmp(auth_str, "otp") == 0) { -#ifdef OTP - p->auth_level = AUTH_OTP; -#else - pop_log (p, POP_PRIORITY, "support for OTP not enabled"); - exit(1); -#endif - } else if(strcasecmp(auth_str, "sasl") == 0) { -#ifdef SASL - p->auth_level = AUTH_SASL; -#else - pop_log (p, POP_PRIORITY, "support for SASL not enabled"); - exit(1); -#endif - } else { - pop_log (p, POP_PRIORITY, "bad value for -a: %s", auth_str); - exit(1); - } - } - /* Debugging requested */ - p->debug = debug_flag; - - if(port_str) - portnum = htons(atoi(port_str)); - if(trace_file){ - p->debug++; - if ((p->trace = fopen(trace_file, "a+")) == NULL) { - pop_log(p, POP_PRIORITY, - "Unable to open trace file \"%s\", err = %d", - optarg,errno); - exit (1); - } - trace_file_name = trace_file; - } - -#if defined(KRB5) - p->kerberosp = kerberos_flag; -#endif - - if(timeout) - pop_timeout = timeout; - - /* Fake inetd */ - if (interactive_flag) { - if (portnum == 0) - portnum = p->kerberosp ? - pop_getportbyname(p, "kpop", "tcp", 1109) : - pop_getportbyname(p, "pop", "tcp", 110); - mini_inetd (portnum, NULL); - } - - /* Get the address and socket of the client to whom I am speaking */ - len = sizeof(cs_ss); - if (getpeername(STDIN_FILENO, cs, &len) < 0) { - pop_log(p,POP_PRIORITY, - "Unable to obtain socket and address of client, err = %d",errno); - exit (1); - } - - /* Save the dotted decimal form of the client's IP address - in the POP parameter block */ - inet_ntop (cs->sa_family, socket_get_address (cs), - p->ipaddr, sizeof(p->ipaddr)); - - /* Save the client's port */ - p->ipport = ntohs(socket_get_port (cs)); - - /* Get the canonical name of the host to whom I am speaking */ - error = getnameinfo_verified (cs, len, p->client, sizeof(p->client), - NULL, 0, 0); - if (error) { - pop_log (p, POP_PRIORITY, - "getnameinfo: %s", gai_strerror (error)); - strlcpy (p->client, p->ipaddr, sizeof(p->client)); - } - - /* Create input file stream for TCP/IP communication */ - if ((p->input = fdopen(STDIN_FILENO,"r")) == NULL){ - pop_log(p,POP_PRIORITY, - "Unable to open communication stream for input, err = %d",errno); - exit (1); - } - - /* Create output file stream for TCP/IP communication */ - if ((p->output = fdopen(STDOUT_FILENO,"w")) == NULL){ - pop_log(p,POP_PRIORITY, - "Unable to open communication stream for output, err = %d",errno); - exit (1); - } - - pop_log(p,POP_PRIORITY, - "(v%s) Servicing request from \"%s\" at %s\n", - VERSION,p->client,p->ipaddr); - -#ifdef DEBUG - if (p->trace) - pop_log(p,POP_PRIORITY, - "Tracing session and debugging information in file \"%s\"", - trace_file_name); - else if (p->debug) - pop_log(p,POP_PRIORITY,"Debugging turned on"); -#endif /* DEBUG */ - - - if(p->kerberosp) - return krb_authenticate(p, cs); - else - return plain_authenticate(p, cs); -} |