qga/commands-common-ssh.c

   1 /*
   2  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   3  * See the COPYING file in the top-level directory.
   4  */
   5
   6 #include "qemu/osdep.h"
   7 #include "qapi/error.h"
   8 #include "commands-common-ssh.h"
   9
  10 GStrv read_authkeys(const char *path, Error **errp)
  11 {
  12     g_autoptr(GError) err = NULL;
  13     g_autofree char *contents = NULL;
  14
  15     if (!g_file_get_contents(path, &contents, NULL, &err)) {
  16         error_setg(errp, "failed to read '%s': %s", path, err->message);
  17         return NULL;
  18     }
  19
  20     return g_strsplit(contents, "\n", -1);
  21 }
  22
  23 bool check_openssh_pub_keys(strList *keys, size_t *nkeys, Error **errp)
  24 {
  25     size_t n = 0;
  26     strList *k;
  27
  28     for (k = keys; k != NULL; k = k->next) {
  29         if (!check_openssh_pub_key(k->value, errp)) {
  30             return false;
  31         }
  32         n++;
  33     }
  34
  35     if (nkeys) {
  36         *nkeys = n;
  37     }
  38     return true;
  39 }
  40
  41 bool check_openssh_pub_key(const char *key, Error **errp)
  42 {
  43     /* simple sanity-check, we may want more? */
  44     if (!key || key[0] == '#' || strchr(key, '\n')) {
  45         error_setg(errp, "invalid OpenSSH public key: '%s'", key);
  46         return false;
  47     }
  48
  49     return true;
  50 }