X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=net.c;h=bc7d234bfa2ec01619d8bc698dfb2841053b0eca;hb=61b0a431ca3c5dabfa5445355664f00e312c5299;hp=9d0cb6c09aeaf2ba9ff19057f146e5f3d922e3ae;hpb=471684761a2039bbc89aa1e3c33c62de6bef86cf;p=paraslash.git diff --git a/net.c b/net.c index 9d0cb6c0..bc7d234b 100644 --- a/net.c +++ b/net.c @@ -12,21 +12,23 @@ #include "error.h" -/** holds information about one encrypted connection */ +/** Information about one encrypted connection. */ struct crypt_data { - /** function used to decrypt received data */ + /** Function used to decrypt received data. */ crypt_function *recv; - /** function used to encrypt data to be sent */ + /** Function used to encrypt data to be sent. */ crypt_function *send; - /** context-dependent data, passed to \a recv() and \a send() */ + /** + * Context-dependent data (crypt keys), passed verbatim to the above + * crypt functions. + */ void *private_data; }; -/** array holding per fd crypt data per */ +/** Array holding per fd crypt data. */ static struct crypt_data *crypt_data_array; -/** current size of the crypt data array */ +/** Current size of the crypt data array. */ static unsigned cda_size = 0; - /** * activate encryption for one file descriptor * @@ -374,11 +376,11 @@ int init_unix_addr(struct sockaddr_un *u, const char *name) } /** - * prepare, create, and bind and socket for local communication + * Prepare, create, and bind a socket for local communication. * - * \param name the socket pathname - * \param unix_addr pointer to the \p AF_UNIX socket structure - * \param mode the desired mode of the socket + * \param name The socket pathname. + * \param unix_addr Pointer to the \p AF_UNIX socket structure. + * \param mode The desired mode of the socket. * * This functions creates a local socket for sequenced, reliable, * two-way, connection-based byte streams. @@ -389,23 +391,27 @@ int init_unix_addr(struct sockaddr_un *u, const char *name) * \sa bind(2) * \sa chmod(2) */ -int create_pf_socket(const char *name, struct sockaddr_un *unix_addr, +int create_local_socket(const char *name, struct sockaddr_un *unix_addr, mode_t mode) { int fd, ret; - fd = socket(PF_UNIX, SOCK_STREAM, 0); - if (fd < 0) - return -E_SOCKET; -// unlink(name); ret = init_unix_addr(unix_addr, name); if (ret < 0) return ret; + fd = socket(PF_UNIX, SOCK_STREAM, 0); + if (fd < 0) + return -E_SOCKET; + ret = -E_BIND; if (bind(fd, (struct sockaddr *) unix_addr, UNIX_PATH_MAX) < 0) - return -E_BIND; + goto err; + ret = -E_CHMOD; if (chmod(name, mode) < 0) - return -E_CHMOD; + goto err; return fd; +err: + close(fd); + return ret; } #ifndef HAVE_UCRED