/* Asynchronous subprocess control for GNU Emacs.
-Copyright (C) 1985-1988, 1993-1996, 1998-1999, 2001-2014
- Free Software Foundation, Inc.
+Copyright (C) 1985-1988, 1993-1996, 1998-1999, 2001-2015 Free Software
+Foundation, Inc.
This file is part of GNU Emacs.
struct timespec *, void *);
#endif
+/* Work around GCC 4.7.0 bug with strict overflow checking; see
+ <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52904>.
+ These lines can be removed once the GCC bug is fixed. */
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+# pragma GCC diagnostic ignored "-Wstrict-overflow"
+#endif
+
+Lisp_Object Qeuid, Qegid, Qcomm, Qstate, Qppid, Qpgrp, Qsess, Qttname, Qtpgid;
+Lisp_Object Qminflt, Qmajflt, Qcminflt, Qcmajflt, Qutime, Qstime, Qcstime;
+Lisp_Object Qcutime, Qpri, Qnice, Qthcount, Qstart, Qvsize, Qrss, Qargs;
+Lisp_Object Quser, Qgroup, Qetime, Qpcpu, Qpmem, Qtime, Qctime;
+Lisp_Object QCname, QCtype;
+\f
+/* True if keyboard input is on hold, zero otherwise. */
+
+static bool kbd_is_on_hold;
+
+/* Nonzero means don't run process sentinels. This is used
+ when exiting. */
+bool inhibit_sentinels;
+
+#ifdef subprocesses
+
#ifndef SOCK_CLOEXEC
# define SOCK_CLOEXEC 0
#endif
return fd;
}
+# undef accept4
+# define accept4(sockfd, addr, addrlen, flags) \
+ process_accept4 (sockfd, addr, addrlen, flags)
static int
accept4 (int sockfd, struct sockaddr *addr, socklen_t *addrlen, int flags)
{
# define socket(domain, type, protocol) process_socket (domain, type, protocol)
#endif
-/* Work around GCC 4.7.0 bug with strict overflow checking; see
- <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52904>.
- These lines can be removed once the GCC bug is fixed. */
-#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
-# pragma GCC diagnostic ignored "-Wstrict-overflow"
-#endif
-
-Lisp_Object Qeuid, Qegid, Qcomm, Qstate, Qppid, Qpgrp, Qsess, Qttname, Qtpgid;
-Lisp_Object Qminflt, Qmajflt, Qcminflt, Qcmajflt, Qutime, Qstime, Qcstime;
-Lisp_Object Qcutime, Qpri, Qnice, Qthcount, Qstart, Qvsize, Qrss, Qargs;
-Lisp_Object Quser, Qgroup, Qetime, Qpcpu, Qpmem, Qtime, Qctime;
-Lisp_Object QCname, QCtype;
-\f
-/* True if keyboard input is on hold, zero otherwise. */
-
-static bool kbd_is_on_hold;
-
-/* Nonzero means don't run process sentinels. This is used
- when exiting. */
-bool inhibit_sentinels;
-
-#ifdef subprocesses
-
Lisp_Object Qprocessp;
static Lisp_Object Qrun, Qstop, Qsignal;
static Lisp_Object Qopen, Qclosed, Qconnect, Qfailed, Qlisten;
int len;
} datagram_address[FD_SETSIZE];
#define DATAGRAM_CHAN_P(chan) (datagram_address[chan].sa != 0)
-#define DATAGRAM_CONN_P(proc) (PROCESSP (proc) && datagram_address[XPROCESS (proc)->infd].sa != 0)
+#define DATAGRAM_CONN_P(proc) \
+ (PROCESSP (proc) && \
+ XPROCESS (proc)->infd >= 0 && \
+ datagram_address[XPROCESS (proc)->infd].sa != 0)
#else
#define DATAGRAM_CHAN_P(chan) (0)
#define DATAGRAM_CONN_P(proc) (0)
case AF_LOCAL:
{
struct sockaddr_un *sockun = (struct sockaddr_un *) sa;
- for (i = 0; i < sizeof (sockun->sun_path); i++)
- if (sockun->sun_path[i] == 0)
- break;
- return make_unibyte_string (sockun->sun_path, i);
+ ptrdiff_t name_length = len - offsetof (struct sockaddr_un, sun_path);
+ /* If the first byte is NUL, the name is a Linux abstract
+ socket name, and the name can contain embedded NULs. If
+ it's not, we have a NUL-terminated string. Be careful not
+ to walk past the end of the object looking for the name
+ terminator, however. */
+ if (name_length > 0 && sockun->sun_path[0] != '\0')
+ {
+ const char* terminator =
+ memchr (sockun->sun_path, '\0', name_length);
+
+ if (terminator)
+ name_length = terminator - (const char*) sockun->sun_path;
+ }
+
+ return make_unibyte_string (sockun->sun_path, name_length);
}
#endif
default:
return system_process_attributes (pid);
}
+#ifdef subprocesses
/* Arrange to catch SIGCHLD if this hasn't already been arranged.
Invoke this after init_process_emacs, and after glib and/or GNUstep
futz with the SIGCHLD handler, but before Emacs forks any children.
: old_action.sa_handler);
unblock_child_signal ();
}
+#endif /* subprocesses */
\f
/* This is not called "init_process" because that is the name of a
DEFSYM (Qcutime, "cutime");
DEFSYM (Qcstime, "cstime");
DEFSYM (Qctime, "ctime");
+#ifdef subprocesses
DEFSYM (Qinternal_default_process_sentinel,
"internal-default-process-sentinel");
DEFSYM (Qinternal_default_process_filter,
"internal-default-process-filter");
+#endif
DEFSYM (Qpri, "pri");
DEFSYM (Qnice, "nice");
DEFSYM (Qthcount, "thcount");