diff options
Diffstat (limited to '')
| -rw-r--r-- | common/sysutils.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/common/sysutils.c b/common/sysutils.c index 60483ac36..71200a604 100644 --- a/common/sysutils.c +++ b/common/sysutils.c @@ -62,6 +62,9 @@ # include <winsock2.h> # endif # include <windows.h> +#else /*!HAVE_W32_SYSTEM*/ +# include <sys/socket.h> +# include <sys/un.h> #endif #ifdef HAVE_INOTIFY_INIT # include <sys/inotify.h> @@ -1090,3 +1093,49 @@ gnupg_inotify_has_name (int fd, const char *name) return 0; /* Not found. */ } + + +/* Return a malloc'ed string that is the path to the passed + * unix-domain socket (or return NULL if this is not a valid + * unix-domain socket). We use a plain int here because it is only + * used on Linux. + * + * FIXME: This function needs to be moved to libassuan. */ +#ifndef HAVE_W32_SYSTEM +char * +gnupg_get_socket_name (int fd) +{ + struct sockaddr_un un; + socklen_t len = sizeof(un); + char *name = NULL; + + if (getsockname (fd, (struct sockaddr*)&un, &len) != 0) + log_error ("could not getsockname(%d): %s\n", fd, + gpg_strerror (gpg_error_from_syserror ())); + else if (un.sun_family != AF_UNIX) + log_error ("file descriptor %d is not a unix-domain socket\n", fd); + else if (len <= offsetof (struct sockaddr_un, sun_path)) + log_error ("socket name not present for file descriptor %d\n", fd); + else if (len > sizeof(un)) + log_error ("socket name for file descriptor %d was truncated " + "(passed %zu bytes, wanted %u)\n", fd, sizeof(un), len); + else + { + size_t namelen = len - offsetof (struct sockaddr_un, sun_path); + + log_debug ("file descriptor %d has path %s (%zu octets)\n", fd, + un.sun_path, namelen); + name = xtrymalloc (namelen + 1); + if (!name) + log_error ("failed to allocate memory for name of fd %d: %s\n", + fd, gpg_strerror (gpg_error_from_syserror ())); + else + { + memcpy (name, un.sun_path, namelen); + name[namelen] = 0; + } + } + + return name; +} +#endif /*!HAVE_W32_SYSTEM*/ |