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plugins.d/password-request.c
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#define _GNU_SOURCE             /* TEMP_FAILURE_RETRY() */
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#include <stdio.h>
 
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#include <stdio.h>              /* fprintf(), stderr, fwrite(), stdout, ferror() */
 
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#include <stdint.h>             /* uint16_t, uint32_t */
 
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#include <stddef.h>             /* NULL, size_t, ssize_t */
 
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#include <stdlib.h>             /* free() */
 
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#include <stdbool.h>            /* bool, true */
 
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#include <string.h>             /* memset(), strcmp(), strlen, strerror() */
 
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#include <sys/ioctl.h>          /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
 
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                                   SIOCSIFFLAGS */
 
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#include <sys/types.h>          /* socket(), inet_pton(), sockaddr,
 
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                                   sockaddr_in6, PF_INET6, SOCK_STREAM, INET6_ADDRSTRLEN */
 
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#include <sys/socket.h>         /* socket(), struct sockaddr_in6,
 
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                                   struct in6_addr, inet_pton(),
 
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                                   connect() */
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#include <assert.h>
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#include <stdlib.h>
 
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#include <errno.h>              /* perror() */
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#include <time.h>
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#include <net/if.h>             /* if_nametoindex */
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#include <sys/ioctl.h>          /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
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                                   SIOCSIFFLAGS */
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#include <net/if.h>             /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
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                                   SIOCSIFFLAGS */
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#include <avahi-core/core.h>
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#include <avahi-core/lookup.h>
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#include <avahi-core/log.h>
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#include <avahi-common/simple-watch.h>
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#include <avahi-common/malloc.h>
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#include <avahi-common/error.h>
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/* Mandos client part */
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#include <sys/types.h>          /* socket(), inet_pton() */
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#include <sys/socket.h>         /* socket(), struct sockaddr_in6,
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                                   struct in6_addr, inet_pton() */
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#include <gnutls/gnutls.h>      /* All GnuTLS stuff */
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#include <gnutls/openpgp.h>     /* GnuTLS with openpgp stuff */
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#include <unistd.h>             /* close() */
 
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                                   SIOCSIFFLAGS, if_indextoname(),
 
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                                   if_nametoindex(), IF_NAMESIZE */
 
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#include <unistd.h>             /* close(), SEEK_SET, off_t, write()*/
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#include <netinet/in.h>
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#include <stdbool.h>            /* true */
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#include <string.h>             /* memset */
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#include <arpa/inet.h>          /* inet_pton() */
 
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#include <arpa/inet.h>          /* inet_pton(), htons */
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#include <iso646.h>             /* not */
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#include <net/if.h>             /* IF_NAMESIZE */
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#include <argp.h>               /* struct argp_option,
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                                   struct argp_state, struct argp,
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                                   argp_parse() */
 
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/* Avahi */
 
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#include <avahi-core/core.h>    /* AvahiSimplePoll, AvahiServer,
 
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                                   AvahiIfIndex */
 
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#include <avahi-core/lookup.h>
 
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#include <avahi-core/log.h>     /* AvahiLogLevel */
 
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#include <avahi-common/simple-watch.h>
 
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#include <avahi-common/malloc.h>
 
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#include <avahi-common/error.h>
 
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/* GnuTLS */
 
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#include <gnutls/gnutls.h>      /* gnutls_certificate_credentials_t,
 
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                                   gnutls_dh_params_t,
 
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                                   gnutls_strerror(),
 
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                                   gnutls_global_init(),
 
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                                   gnutls_global_set_log_level(),
 
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                                   gnutls_global_set_log_function(),
 
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                                   gnutls_certificate_allocate_credentials(),
 
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                                   gnutls_global_deinit(),
 
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                                   gnutls_dh_params_init(),
 
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                                   gnutls_dh_params_generate(),
 
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                                   gnutls_certificate_set_dh_params(),
 
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                                   gnutls_certificate_free_credentials(),
 
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                                   gnutls_session_t, gnutls_init(),
 
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                                   gnutls_priority_set_direct(),
 
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                                   gnutls_deinit(),
 
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                                   gnutls_credentials_set(),
 
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                                   gnutls_certificate_server_set_request(),
 
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                                   gnutls_dh_set_prime_bits(),
 
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                                   gnutls_transport_set_ptr(),
 
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                                   gnutls_transport_ptr_t,
 
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                                   gnutls_handshake(),
 
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                                   gnutls_record_recv()
 
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                                   gnutls_perror(), gnutls_bye(),
 
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                                   init_gnutls_session(),
 
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                                   GNUTLS_E_SUCCESS,
 
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                                   GNUTLS_CRD_CERTIFICATE,
 
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                                   GNUTLS_CERT_IGNORE,
 
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                                   GNUTLS_E_INTERRUPTED,
 
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                                   GNUTLS_E_AGAIN,
 
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                                   GNUTLS_E_REHANDSHAKE,
 
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                                   GNUTLS_SHUT_RDWR, */
 
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#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
 
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                               GNUTLS_OPENPGP_FMT_BASE64 */
 
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/* GPGME */
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#include <errno.h>              /* perror() */
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#include <gpgme.h>
 
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#include <gpgme.h>              /* gpgme_data_t, gpgme_ctx_t,
 
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                                   gpgme_error_t, gpgme_engine_info_t,
 
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                                   gpgme_check_version(),
 
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                                   gpgme_engine_check_version(),
 
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                                   gpgme_strsource(),
 
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                                   gpgme_strerror(),
 
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                                   gpgme_get_engine_info(),
 
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                                   gpgme_set_engine_info(),
 
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                                   gpgme_data_new_from_mem(),
 
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                                   gpgme_data_new(), gpgme_new(),
 
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                                   gpgme_op_decrypt(),
 
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                                   gpgme_decrypt_result_t,
 
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                                   gpgme_op_decrypt_result(),
 
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                                   gpgme_recipient_t,
 
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                                   gpgme_pubkey_algo_name(),
 
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                                   gpgme_data_seek(),
 
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                                   gpgme_data_read(),
 
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                                   gpgme_data_release()
 
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                                   GPGME_PROTOCOL_OpenPGP,
 
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                                   GPG_ERR_NO_ERROR,
 
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                                   GPG_ERR_NO_SECKEY, */
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#define BUFFER_SIZE 256
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 globalfail:
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  gnutls_certificate_free_credentials (mc->cred);
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  gnutls_global_deinit ();
 
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  gnutls_certificate_free_credentials(mc->cred);
 
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  gnutls_global_deinit();
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  return -1;
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}