src/netops.h

   1 /*
   2  * Copyright (C) the libgit2 contributors. All rights reserved.
   3  *
   4  * This file is part of libgit2, distributed under the GNU GPL v2 with
   5  * a Linking Exception. For full terms see the included COPYING file.
   6  */
   7 #ifndef INCLUDE_netops_h__
   8 #define INCLUDE_netops_h__
   9
  10 #include "posix.h"
  11 #include "common.h"
  12
  13 #ifdef GIT_SSL
  14 # include <openssl/ssl.h>
  15 #endif
  16
  17 struct gitno_ssl {
  18 #ifdef GIT_SSL
  19         SSL_CTX *ctx;
  20         SSL *ssl;
  21 #else
  22         size_t dummy;
  23 #endif
  24 };
  25
  26 typedef struct gitno_ssl gitno_ssl;
  27
  28 /* Represents a socket that may or may not be using SSL */
  29 struct gitno_socket {
  30         GIT_SOCKET socket;
  31         gitno_ssl ssl;
  32 };
  33
  34 typedef struct gitno_socket gitno_socket;
  35
  36 struct gitno_buffer {
  37         char *data;
  38         size_t len;
  39         size_t offset;
  40         gitno_socket *socket;
  41         int (*recv)(struct gitno_buffer *buffer);
  42         void *cb_data;
  43 };
  44
  45 typedef struct gitno_buffer gitno_buffer;
  46
  47 /* Flags to gitno_connect */
  48 enum {
  49         /* Attempt to create an SSL connection. */
  50         GITNO_CONNECT_SSL = 1,
  51
  52         /* Valid only when GITNO_CONNECT_SSL is also specified.
  53          * Indicates that the server certificate should not be validated. */
  54         GITNO_CONNECT_SSL_NO_CHECK_CERT = 2,
  55 };
  56
  57 void gitno_buffer_setup(gitno_socket *t, gitno_buffer *buf, char *data, size_t len);
  58 void gitno_buffer_setup_callback(gitno_socket *t, gitno_buffer *buf, char *data, size_t len, int (*recv)(gitno_buffer *buf), void *cb_data);
  59 int gitno_recv(gitno_buffer *buf);
  60
  61 void gitno_consume(gitno_buffer *buf, const char *ptr);
  62 void gitno_consume_n(gitno_buffer *buf, size_t cons);
  63
  64 int gitno_connect(gitno_socket *socket, const char *host, const char *port, int flags);
  65 int gitno_send(gitno_socket *socket, const char *msg, size_t len, int flags);
  66 int gitno_close(gitno_socket *s);
  67 int gitno_select_in(gitno_buffer *buf, long int sec, long int usec);
  68
  69 typedef struct gitno_connection_data {
  70         char *host;
  71         char *port;
  72         char *path;
  73         char *user;
  74         char *pass;
  75         bool use_ssl;
  76 } gitno_connection_data;
  77
  78 /*
  79  * This replaces all the pointers in `data` with freshly-allocated strings,
  80  * that the caller is responsible for freeing.
  81  * `gitno_connection_data_free_ptrs` is good for this.
  82  */
  83
  84 int gitno_connection_data_from_url(
  85                 gitno_connection_data *data,
  86                 const char *url,
  87                 const char *service_suffix);
  88
  89 /* This frees all the pointers IN the struct, but not the struct itself. */
  90 void gitno_connection_data_free_ptrs(gitno_connection_data *data);
  91
  92 int gitno_extract_url_parts(
  93                 char **host,
  94                 char **port,
  95                 char **username,
  96                 char **password,
  97                 const char *url,
  98                 const char *default_port);
  99
 100 #endif