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Viewing changes to plugins.d/mandos-client.c

  • Committer: Teddy Hogeborn
  • Date: 2016-02-28 20:26:27 UTC
  • Revision ID: teddy@recompile.se-20160228202627-vls5dia6repq6ks2
Depend on the GNU C Library 2.16 or later 

* INSTALL: Document dependency.
* plugin-runner.c: Remove #ifdefs for scandirat() and adding of
                   -Wsign-conversion for FD_SET, FD_CLR, and FD_ISSET.
* plugins.d/mandos-client.c: - '' -

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plugins.d/mandos-client.c
57
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#include <sys/socket.h>         /* socket(), struct sockaddr_in6,
58
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                                   inet_pton(), connect(),
59
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                                   getnameinfo() */
60
 
#include <fcntl.h>              /* open(), unlinkat(), AT_REMOVEDIR */
 
60
#include <fcntl.h>              /* open(), unlinkat() */
61
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#include <dirent.h>             /* opendir(), struct dirent, readdir()
62
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                                 */
63
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#include <inttypes.h>           /* PRIu16, PRIdMAX, intmax_t,
64
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                                   strtoimax() */
65
 
#include <errno.h>              /* perror(), errno, EINTR, EINVAL,
66
 
                                   EAI_SYSTEM, ENETUNREACH,
67
 
                                   EHOSTUNREACH, ECONNREFUSED, EPROTO,
68
 
                                   EIO, ENOENT, ENXIO, ENOMEM, EISDIR,
69
 
                                   ENOTEMPTY,
 
65
#include <errno.h>              /* perror(), errno,
70
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                                   program_invocation_short_name */
71
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#include <time.h>               /* nanosleep(), time(), sleep() */
72
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#include <net/if.h>             /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
517
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  fprintf_plus(stderr, "GnuTLS: %s", string);
518
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}
519
515
 
520
 
__attribute__((nonnull(1, 2, 4), warn_unused_result))
 
516
__attribute__((nonnull, warn_unused_result))
521
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static int init_gnutls_global(const char *pubkeyfilename,
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                              const char *seckeyfilename,
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                              const char *dhparamsfilename,
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    fprintf_plus(stderr, "Initializing GnuTLS\n");
530
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  }
531
527
  
 
528
  ret = gnutls_global_init();
 
529
  if(ret != GNUTLS_E_SUCCESS){
 
530
    fprintf_plus(stderr, "GnuTLS global_init: %s\n",
 
531
                 safer_gnutls_strerror(ret));
 
532
    return -1;
 
533
  }
 
534
  
532
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  if(debug){
533
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    /* "Use a log level over 10 to enable all debugging options."
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     * - GnuTLS manual
542
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  if(ret != GNUTLS_E_SUCCESS){
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    fprintf_plus(stderr, "GnuTLS memory error: %s\n",
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                 safer_gnutls_strerror(ret));
 
548
    gnutls_global_deinit();
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    return -1;
546
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  }
547
551
  
751
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 globalfail:
752
756
  
753
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  gnutls_certificate_free_credentials(mc->cred);
 
758
  gnutls_global_deinit();
754
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  gnutls_dh_params_deinit(mc->dh_params);
755
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  return -1;
756
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}
2961
2966
  
2962
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  if(gnutls_initialized){
2963
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    gnutls_certificate_free_credentials(mc.cred);
 
2969
    gnutls_global_deinit();
2964
2970
    gnutls_dh_params_deinit(mc.dh_params);
2965
2971
  }
2966
2972
  
3028
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  free(interfaces_to_take_down);
3029
3035
  free(interfaces_hooks);
3030
3036
  
3031
 
  void clean_dir_at(int base, const char * const dirname,
3032
 
                    uintmax_t level){
3033
 
    struct dirent **direntries = NULL;
3034
 
    int dret;
3035
 
    int dir_fd = (int)TEMP_FAILURE_RETRY(openat(base, dirname,
3036
 
                                                O_RDONLY
3037
 
                                                | O_NOFOLLOW
3038
 
                                                | O_DIRECTORY
3039
 
                                                | O_PATH));
3040
 
    if(dir_fd == -1){
3041
 
      perror_plus("open");
3042
 
    }
3043
 
    int numentries = scandirat(dir_fd, ".", &direntries,
3044
 
                               notdotentries, alphasort);
3045
 
    if(numentries >= 0){
3046
 
      for(int i = 0; i < numentries; i++){
3047
 
        if(debug){
3048
 
          fprintf_plus(stderr, "Unlinking \"%s/%s\"\n",
3049
 
                       dirname, direntries[i]->d_name);
3050
 
        }
3051
 
        dret = unlinkat(dir_fd, direntries[i]->d_name, 0);
3052
 
        if(dret == -1){
3053
 
          if(errno == EISDIR){
3054
 
              dret = unlinkat(dir_fd, direntries[i]->d_name,
3055
 
                              AT_REMOVEDIR);
3056
 
          }         
3057
 
          if((dret == -1) and (errno == ENOTEMPTY)
3058
 
             and (strcmp(direntries[i]->d_name, "private-keys-v1.d")
3059
 
                  == 0) and (level == 0)){
3060
 
            /* Recurse only in this special case */
3061
 
            clean_dir_at(dir_fd, direntries[i]->d_name, level+1);
3062
 
            dret = 0;
3063
 
          }
3064
 
          if(dret == -1){
3065
 
            fprintf_plus(stderr, "unlink(\"%s/%s\"): %s\n", dirname,
3066
 
                         direntries[i]->d_name, strerror(errno));
3067
 
          }
3068
 
        }
3069
 
        free(direntries[i]);
3070
 
      }
3071
 
      
3072
 
      /* need to clean even if 0 because man page doesn't specify */
3073
 
      free(direntries);
3074
 
      if(numentries == -1){
3075
 
        perror_plus("scandirat");
3076
 
      }
3077
 
      dret = unlinkat(base, dirname, AT_REMOVEDIR);
3078
 
      if(dret == -1 and errno != ENOENT){
3079
 
        perror_plus("rmdir");
3080
 
      }
3081
 
    } else {
3082
 
      perror_plus("scandirat");
3083
 
    }
3084
 
    close(dir_fd);
3085
 
  }
3086
 
  
3087
3037
  /* Removes the GPGME temp directory and all files inside */
3088
3038
  if(tempdir != NULL){
3089
 
    clean_dir_at(-1, tempdir, 0);
 
3039
    struct dirent **direntries = NULL;
 
3040
    int tempdir_fd = (int)TEMP_FAILURE_RETRY(open(tempdir, O_RDONLY
 
3041
                                                  | O_NOFOLLOW
 
3042
                                                  | O_DIRECTORY
 
3043
                                                  | O_PATH));
 
3044
    if(tempdir_fd == -1){
 
3045
      perror_plus("open");
 
3046
    } else {
 
3047
      int numentries = scandirat(tempdir_fd, ".", &direntries,
 
3048
                                 notdotentries, alphasort);
 
3049
      if(numentries >= 0){
 
3050
        for(int i = 0; i < numentries; i++){
 
3051
          ret = unlinkat(tempdir_fd, direntries[i]->d_name, 0);
 
3052
          if(ret == -1){
 
3053
            fprintf_plus(stderr, "unlinkat(open(\"%s\", O_RDONLY),"
 
3054
                         " \"%s\", 0): %s\n", tempdir,
 
3055
                         direntries[i]->d_name, strerror(errno));
 
3056
          }
 
3057
          free(direntries[i]);
 
3058
        }
 
3059
        
 
3060
        /* need to clean even if 0 because man page doesn't specify */
 
3061
        free(direntries);
 
3062
        if(numentries == -1){
 
3063
          perror_plus("scandir");
 
3064
        }
 
3065
        ret = rmdir(tempdir);
 
3066
        if(ret == -1 and errno != ENOENT){
 
3067
          perror_plus("rmdir");
 
3068
        }
 
3069
      }
 
3070
      close(tempdir_fd);
 
3071
    }
3090
3072
  }
3091
3073
  
3092
3074
  if(quit_now){