command.h

   1 /** \file command.h The structure of server and afs commands. */
   2
   3 /** Per connection data available to command handlers. */
   4 struct command_context {
   5         /** Network address of the peer. */
   6         const char *peer;
   7         /** The paraslash user that executes this command. */
   8         struct user *u;
   9         /** Argument count. */
  10         int argc;
  11         /** Argument vector. */
  12         char **argv;
  13         /** The command being executed. */
  14         struct server_command *cmd;
  15         /** File descriptor and crypto keys. */
  16         struct stream_cipher_context scc;
  17         /** Whether to use the sideband API for this command. */
  18         bool use_sideband;
  19 };
  20
  21 /**
  22  * Defines one command of para_server.
  23  */
  24 struct server_command {
  25         /** The name of the command. */
  26         const char *name;
  27         /** Pointer to the function that handles the command. */
  28         int (*handler)(struct command_context *);
  29         /** The privileges a user must have to execute this command. */
  30         unsigned int perms;
  31         /** One-line description of the command. */
  32         const char *description;
  33         /** Summary of the command line options. */
  34         const char *usage;
  35         /** The long help text. */
  36         const char *help;
  37 };
  38
  39 int send_sb(struct stream_cipher_context *scc, void *buf, size_t numbytes,
  40                 int band, bool dont_free);
  41 __printf_3_4 int send_sb_va(struct stream_cipher_context *scc, int band,
  42                 const char *fmt, ...);
  43 int recv_sb(struct stream_cipher_context *scc,
  44                 enum sb_designator expected_band,
  45                 size_t max_size, struct iovec *result);