X-Git-Url: http://git.hcoop.net/bpt/emacs.git/blobdiff_plain/a6b003185279915989b3e54321b940341081f822..2e34157cd9e74150e79e0ce23236252b47fb5f1a:/src/sysdep.c diff --git a/src/sysdep.c b/src/sysdep.c index 455ebacae2..8bde434f52 100644 --- a/src/sysdep.c +++ b/src/sysdep.c @@ -1,5 +1,5 @@ /* Interfaces to system-dependent kernel and library entries. - Copyright (C) 1985, 86, 87, 88, 93, 94 Free Software Foundation, Inc. + Copyright (C) 1985, 86, 87, 88, 93, 94, 95 Free Software Foundation, Inc. This file is part of GNU Emacs. @@ -15,7 +15,8 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Emacs; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ #include @@ -26,6 +27,10 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "blockinput.h" #undef NULL +#ifdef HAVE_TERMIOS_H +#include +#endif + #define min(x,y) ((x) > (y) ? (y) : (x)) /* In this file, open, read and write refer to the system calls, @@ -40,6 +45,13 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #undef read #undef write +#ifdef WINDOWSNT +#define read _read +#define write _write +#include +extern int errno; +#endif /* not WINDOWSNT */ + #ifndef close #define sys_close close #else @@ -59,16 +71,35 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #undef fwrite #endif +#ifndef HAVE_H_ERRNO +extern int h_errno; +#endif + #include #include #include #include +/* Get _POSIX_VDISABLE, if it is available. */ +#ifdef HAVE_UNISTD_H +#include +#endif + +/* Get SI_SRPC_DOMAIN, if it is available. */ +#ifdef HAVE_SYS_SYSTEMINFO_H +#include +#endif + #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */ #include #include "dosfns.h" #include "msdos.h" #include + +#if __DJGPP__ > 1 +extern int etext; +extern unsigned start __asm__ ("start"); +#endif #endif extern int errno; @@ -93,11 +124,11 @@ extern int errno; #ifndef RAB$C_BID #include #endif -#define MAXIOSIZE ( 32 * PAGESIZE ) /* Don't I/O more than 32 blocks at a time */ +#define MAXIOSIZE (32 * PAGESIZE) /* Don't I/O more than 32 blocks at a time */ #endif /* VMS */ #ifndef BSD4_1 -#ifdef BSD /* this is done this way to avoid defined (BSD) || defined (USG) +#ifdef BSD_SYSTEM /* avoid writing defined (BSD_SYSTEM) || defined (USG) because the vms compiler doesn't grok `defined' */ #include #endif @@ -108,23 +139,16 @@ extern int errno; #endif #endif /* not 4.1 bsd */ -#ifdef BROKEN_FASYNC -/* On some systems (DGUX comes to mind real fast) FASYNC causes - background writes to the terminal to stop all processes in the - process group when invoked under the csh (and probably any shell - with job control). This stops Emacs dead in its tracks when coming - up under X11. */ -#undef FASYNC -#endif - #ifndef MSDOS #include #endif + #include "systty.h" #include "syswait.h" #ifdef BROKEN_TIOCGWINSZ #undef TIOCGWINSZ +#undef TIOCSWINSZ #endif #ifdef USG @@ -133,7 +157,7 @@ extern int errno; #ifndef MEMORY_IN_STRING_H #include #endif -#ifdef TIOCGWINSZ +#if defined (TIOCGWINSZ) || defined (ISC4_0) #ifdef NEED_SIOCTL #include #endif @@ -141,7 +165,7 @@ extern int errno; #include #include #endif -#endif /* TIOCGWINSZ */ +#endif /* TIOCGWINSZ or ISC4_0 */ #endif /* USG */ extern int quit_char; @@ -154,12 +178,38 @@ extern int quit_char; #include "dispextern.h" #include "process.h" +#ifdef WINDOWSNT +#include +/* In process.h which conflicts with the local copy. */ +#define _P_WAIT 0 +int _CRTAPI1 _spawnlp (int, const char *, const char *, ...); +int _CRTAPI1 _getpid (void); +#endif + #ifdef NONSYSTEM_DIR_LIBRARY #include "ndir.h" #endif /* NONSYSTEM_DIR_LIBRARY */ #include "syssignal.h" #include "systime.h" +#ifdef HAVE_UTIME_H +#include +#endif + +#ifndef HAVE_UTIMES +#ifndef HAVE_STRUCT_UTIMBUF +/* We want to use utime rather than utimes, but we couldn't find the + structure declaration. We'll use the traditional one. */ +struct utimbuf { + long actime; + long modtime; +}; +#endif +#endif + +#ifndef VFORK_RETURN_TYPE +#define VFORK_RETURN_TYPE int +#endif /* LPASS8 is new in 4.3, and makes cbreak mode provide all 8 bits. */ #ifndef LPASS8 @@ -180,13 +230,16 @@ static int baud_convert[] = }; #endif +#ifdef HAVE_TERMIOS_H +extern speed_t ospeed; +#else extern short ospeed; +#endif /* The file descriptor for Emacs's input terminal. - Under Unix, this is normaly zero except when using X; - under VMS, we place the input channel number here. - This allows us to write more code that works for both VMS and Unix. */ -static int input_fd; + Under Unix, this is normally zero except when using X; + under VMS, we place the input channel number here. */ +int input_fd; /* Specify a different file descriptor for further input operations. */ @@ -201,6 +254,7 @@ change_input_fd (fd) discard_tty_input () { +#ifndef WINDOWSNT struct emacs_tty buf; if (noninteractive) @@ -223,15 +277,16 @@ discard_tty_input () ioctl (input_fd, TIOCFLUSH, &zero); } #else /* not Apollo */ -#ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */ +#ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */ while (dos_keyread () != -1) - ; + ; #else /* not MSDOS */ EMACS_GET_TTY (input_fd, &buf); EMACS_SET_TTY (input_fd, &buf, 0); #endif /* not MSDOS */ #endif /* not Apollo */ #endif /* not VMS */ +#endif /* not WINDOWSNT */ } #ifdef SIGTSTP @@ -242,6 +297,9 @@ discard_tty_input () stuff_char (c) char c; { + if (read_socket_hook) + return; + /* Should perhaps error if in batch mode */ #ifdef TIOCSTI ioctl (input_fd, TIOCSTI, &c); @@ -258,9 +316,12 @@ init_baud_rate () ospeed = 0; else { -#ifdef MSDOS - ospeed = 15; +#ifdef INIT_BAUD_RATE + INIT_BAUD_RATE (); #else +#ifdef DOS_NT + ospeed = 15; +#else /* not DOS_NT */ #ifdef VMS struct sensemode sg; @@ -274,6 +335,11 @@ init_baud_rate () sg.c_cflag = B9600; tcgetattr (input_fd, &sg); ospeed = cfgetospeed (&sg); +#if defined (USE_GETOBAUD) && defined (getobaud) + /* m88k-motorola-sysv3 needs this (ghazi@noc.rutgers.edu) 9/1/94. */ + if (ospeed == 0) + ospeed = getobaud (sg.c_cflag); +#endif #else /* neither VMS nor TERMIOS */ #ifdef HAVE_TERMIO struct termio sg; @@ -295,11 +361,12 @@ init_baud_rate () #endif /* not HAVE_TERMIO */ #endif /* not HAVE_TERMIOS */ #endif /* not VMS */ -#endif /* not MSDOS */ +#endif /* not DOS_NT */ +#endif /* not INIT_BAUD_RATE */ } baud_rate = (ospeed < sizeof baud_convert / sizeof baud_convert[0] - ? baud_convert[ospeed] : 9600); + ? baud_convert[ospeed] : 9600); if (baud_rate == 0) baud_rate = 1200; } @@ -318,7 +385,7 @@ set_exclusive_use (fd) wait_without_blocking () { -#ifdef BSD +#ifdef BSD_SYSTEM wait3 (0, WNOHANG | WUNTRACED, 0); #else croak ("wait_without_blocking"); @@ -329,7 +396,7 @@ wait_without_blocking () #endif /* not subprocesses */ int wait_debugging; /* Set nonzero to make following function work under dbx - (at least for bsd). */ + (at least for bsd). */ SIGTYPE wait_for_termination_signal () @@ -350,7 +417,7 @@ wait_for_termination (pid) status = SYS$FORCEX (&pid, 0, 0); break; #else /* not VMS */ -#if defined (BSD) || (defined (HPUX) && !defined (HPUX_5)) +#if defined (BSD_SYSTEM) || (defined (HPUX) && !defined (HPUX_5)) /* Note that kill returns -1 even if the process is just a zombie now. But inevitably a SIGCHLD interrupt should be generated and child_sig will do wait3 and make the process go away. */ @@ -360,7 +427,7 @@ wait_for_termination (pid) if that causes the problem to go away or get worse. */ sigsetmask (sigmask (SIGCHLD)); if (0 > kill (pid, 0)) - { + { sigsetmask (SIGEMPTYMASK); kill (getpid (), SIGCHLD); break; @@ -369,13 +436,13 @@ wait_for_termination (pid) sleep (1); else sigpause (SIGEMPTYMASK); -#else /* not BSD, and not HPUX version >= 6 */ +#else /* not BSD_SYSTEM, and not HPUX version >= 6 */ #if defined (UNIPLUS) if (0 > kill (pid, 0)) break; wait (0); -#else /* neither BSD nor UNIPLUS: random sysV */ -#ifdef POSIX_SIGNALS /* would this work for LINUX as well? */ +#else /* neither BSD_SYSTEM nor UNIPLUS: random sysV */ +#ifdef POSIX_SIGNALS /* would this work for LINUX as well? */ sigblock (sigmask (SIGCHLD)); if (0 > kill (pid, 0)) { @@ -393,18 +460,26 @@ wait_for_termination (pid) } sigpause (SIGCHLD); #else /* not HAVE_SYSV_SIGPAUSE */ +#ifdef WINDOWSNT + wait (0); + break; +#else /* not WINDOWSNT */ if (0 > kill (pid, 0)) break; /* Using sleep instead of pause avoids timing error. If the inferior dies just before the sleep, we lose just one second. */ sleep (1); +#endif /* not WINDOWSNT */ #endif /* not HAVE_SYSV_SIGPAUSE */ #endif /* not POSIX_SIGNALS */ #endif /* not UNIPLUS */ -#endif /* not BSD, and not HPUX version >= 6 */ +#endif /* not BSD_SYSTEM, and not HPUX version >= 6 */ #endif /* not VMS */ #else /* not subprocesses */ +#if __DJGPP__ > 1 + break; +#else /* not __DJGPP__ > 1 */ #ifndef BSD4_1 if (kill (pid, 0) < 0) break; @@ -415,6 +490,7 @@ wait_for_termination (pid) if (status == pid || status == -1) break; #endif /* BSD4_1 */ +#endif /* not __DJGPP__ > 1*/ #endif /* not subprocesses */ } } @@ -456,7 +532,7 @@ flush_pending_output (channel) child_setup_tty (out) int out; { -#ifndef MSDOS +#ifndef DOS_NT struct emacs_tty s; EMACS_GET_TTY (out, &s); @@ -473,9 +549,13 @@ child_setup_tty (out) #ifdef IUCLC s.main.c_iflag &= ~IUCLC; /* Disable downcasing on input. */ #endif +#ifdef ISTRIP + s.main.c_iflag &= ~ISTRIP; /* don't strip 8th bit on input */ +#endif #ifdef OLCUC s.main.c_oflag &= ~OLCUC; /* Disable upcasing on output. */ #endif + s.main.c_oflag &= ~TAB3; /* Disable tab expansion */ s.main.c_cflag = (s.main.c_cflag & ~CSIZE) | CS8; /* Don't strip 8th bit */ #if 0 /* Said to be unnecessary: */ @@ -485,8 +565,8 @@ child_setup_tty (out) s.main.c_lflag |= ICANON; /* Enable erase/kill and eof processing */ s.main.c_cc[VEOF] = 04; /* insure that EOF is Control-D */ - s.main.c_cc[VERASE] = 0377; /* disable erase processing */ - s.main.c_cc[VKILL] = 0377; /* disable kill processing */ + s.main.c_cc[VERASE] = CDISABLE; /* disable erase processing */ + s.main.c_cc[VKILL] = CDISABLE; /* disable kill processing */ #ifdef HPUX s.main.c_cflag = (s.main.c_cflag & ~CBAUD) | B9600; /* baud rate sanity */ @@ -544,18 +624,11 @@ child_setup_tty (out) ioctl (out, FIOASYNC, &zero); } #endif /* RTU */ -#endif /* not MSDOS */ +#endif /* not DOS_NT */ } #endif /* not VMS */ #endif /* subprocesses */ - -/*ARGSUSED*/ -setpgrp_of_tty (pid) - int pid; -{ - EMACS_SET_TTY_PGRP (input_fd, &pid); -} /* Record a signal code and the handler for it. */ struct save_signal @@ -642,8 +715,11 @@ sys_subshell () int st; char oldwd[MAXPATHLEN+1]; /* Fixed length is safe on MSDOS. */ #endif - int pid = fork (); + int pid; struct save_signal saved_handlers[5]; + Lisp_Object dir; + unsigned char *str = 0; + int len; saved_handlers[0].code = SIGINT; saved_handlers[1].code = SIGQUIT; @@ -655,73 +731,106 @@ sys_subshell () saved_handlers[3].code = 0; #endif + /* Mentioning current_buffer->buffer would mean including buffer.h, + which somehow wedges the hp compiler. So instead... */ + + dir = intern ("default-directory"); + if (NILP (Fboundp (dir))) + goto xyzzy; + dir = Fsymbol_value (dir); + if (!STRINGP (dir)) + goto xyzzy; + + dir = expand_and_dir_to_file (Funhandled_file_name_directory (dir), Qnil); + str = (unsigned char *) alloca (XSTRING (dir)->size + 2); + len = XSTRING (dir)->size; + bcopy (XSTRING (dir)->data, str, len); + if (str[len - 1] != '/') str[len++] = '/'; + str[len] = 0; + xyzzy: + +#ifdef WINDOWSNT + pid = -1; +#else /* not WINDOWSNT */ + +#ifdef MSDOS + pid = 0; +#if __DJGPP__ > 1 + save_signal_handlers (saved_handlers); + synch_process_alive = 1; +#endif /* __DJGPP__ > 1 */ +#else + pid = vfork (); if (pid == -1) error ("Can't spawn subshell"); +#endif + if (pid == 0) +#endif /* not WINDOWSNT */ { - char *sh; + char *sh = 0; -#ifdef MSDOS /* MW, Aug 1993 */ +#ifdef MSDOS /* MW, Aug 1993 */ getwd (oldwd); + if (sh == 0) + sh = (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */ #endif - sh = (char *) egetenv ("SHELL"); + if (sh == 0) + sh = (char *) egetenv ("SHELL"); if (sh == 0) sh = "sh"; /* Use our buffer's default directory for the subshell. */ - { - Lisp_Object dir; - unsigned char *str; - int len; - - /* mentioning current_buffer->buffer would mean including buffer.h, - which somehow wedges the hp compiler. So instead... */ - - dir = intern ("default-directory"); - /* Can't use NILP */ - if (XFASTINT (Fboundp (dir)) == XFASTINT (Qnil)) - goto xyzzy; - dir = Fsymbol_value (dir); - if (XTYPE (dir) != Lisp_String) - goto xyzzy; - - str = (unsigned char *) alloca (XSTRING (dir)->size + 2); - len = XSTRING (dir)->size; - bcopy (XSTRING (dir)->data, str, len); - if (str[len - 1] != '/') str[len++] = '/'; - str[len] = 0; + if (str) chdir (str); - } - xyzzy: + #ifdef subprocesses close_process_descs (); /* Close Emacs's pipes/ptys */ #endif -#ifdef PRIO_PROCESS +#ifdef SET_EMACS_PRIORITY { extern int emacs_priority; - if (emacs_priority) + if (emacs_priority < 0) nice (-emacs_priority); } #endif -#ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */ +#ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */ st = system (sh); chdir (oldwd); +#if 0 /* This is also reported if last command executed in subshell failed, KFS */ if (st) - report_file_error ("Can't execute subshell", Fcons (build_string (sh), Qnil)); + report_file_error ("Can't execute subshell", Fcons (build_string (sh), Qnil)); +#endif #else /* not MSDOS */ +#ifdef WINDOWSNT + /* Waits for process completion */ + pid = _spawnlp (_P_WAIT, sh, sh, NULL); + if (pid == -1) + write (1, "Can't execute subshell", 22); + + take_console (); +#else /* not WINDOWSNT */ execlp (sh, sh, 0); write (1, "Can't execute subshell", 22); _exit (1); +#endif /* not WINDOWSNT */ #endif /* not MSDOS */ } + /* Do this now if we did not do it before. */ +#if !defined (MSDOS) || __DJGPP__ == 1 save_signal_handlers (saved_handlers); synch_process_alive = 1; +#endif + +#ifndef MSDOS wait_for_termination (pid); +#endif restore_signal_handlers (saved_handlers); + synch_process_alive = 0; #endif /* !VMS */ } @@ -750,12 +859,14 @@ restore_signal_handlers (saved_handlers) int old_fcntl_flags; -init_sigio () +init_sigio (fd) + int fd; { #ifdef FASYNC - old_fcntl_flags = fcntl (input_fd, F_GETFL, 0) & ~FASYNC; + old_fcntl_flags = fcntl (fd, F_GETFL, 0) & ~FASYNC; + fcntl (fd, F_SETFL, old_fcntl_flags | FASYNC); #endif - request_sigio (); + interrupts_deferred = 0; } reset_sigio () @@ -767,6 +878,9 @@ reset_sigio () request_sigio () { + if (read_socket_hook) + return; + #ifdef SIGWINCH sigunblock (sigmask (SIGWINCH)); #endif @@ -777,6 +891,9 @@ request_sigio () unrequest_sigio () { + if (read_socket_hook) + return; + #ifdef SIGWINCH sigblock (sigmask (SIGWINCH)); #endif @@ -790,6 +907,10 @@ unrequest_sigio () request_sigio () { int on = 1; + + if (read_socket_hook) + return; + ioctl (input_fd, FIOASYNC, &on); interrupts_deferred = 0; } @@ -798,6 +919,9 @@ unrequest_sigio () { int off = 0; + if (read_socket_hook) + return; + ioctl (input_fd, FIOASYNC, &off); interrupts_deferred = 1; } @@ -813,6 +937,9 @@ request_sigio () int on = 1; sigset_t st; + if (read_socket_hook) + return; + sigemptyset(&st); sigaddset(&st, SIGIO); ioctl (input_fd, FIOASYNC, &on); @@ -824,6 +951,9 @@ unrequest_sigio () { int off = 0; + if (read_socket_hook) + return; + ioctl (input_fd, FIOASYNC, &off); interrupts_deferred = 1; } @@ -832,11 +962,17 @@ unrequest_sigio () request_sigio () { + if (read_socket_hook) + return; + croak ("request_sigio"); } unrequest_sigio () { + if (read_socket_hook) + return; + croak ("unrequest_sigio"); } @@ -924,11 +1060,11 @@ emacs_get_tty (fd, settings) return -1; #else -#ifndef MSDOS +#ifndef DOS_NT /* I give up - I hope you have the BSD ioctls. */ if (ioctl (fd, TIOCGETP, &settings->main) < 0) return -1; -#endif /* not MSDOS */ +#endif /* not DOS_NT */ #endif #endif #endif @@ -952,15 +1088,14 @@ emacs_get_tty (fd, settings) /* Set the parameters of the tty on FD according to the contents of - *SETTINGS. If WAITP is non-zero, we wait for all queued output to - be written before making the change; otherwise, we forget any - queued input and make the change immediately. + *SETTINGS. If FLUSHP is non-zero, we discard input. Return 0 if all went well, and -1 if anything failed. */ + int -emacs_set_tty (fd, settings, waitp) +emacs_set_tty (fd, settings, flushp) int fd; struct emacs_tty *settings; - int waitp; + int flushp; { /* Set the primary parameters - baud rate, character size, etcetera. */ #ifdef HAVE_TCATTR @@ -974,7 +1109,7 @@ emacs_set_tty (fd, settings, waitp) AIX requires this to keep tty from hanging occasionally." */ /* This make sure that we don't loop indefinitely in here. */ for (i = 0 ; i < 10 ; i++) - if (tcsetattr (fd, waitp ? TCSAFLUSH : TCSADRAIN, &settings->main) < 0) + if (tcsetattr (fd, flushp ? TCSAFLUSH : TCSADRAIN, &settings->main) < 0) { if (errno == EINTR) continue; @@ -1004,7 +1139,7 @@ emacs_set_tty (fd, settings, waitp) #else #ifdef HAVE_TERMIO /* The SYSV-style interface? */ - if (ioctl (fd, waitp ? TCSETAW : TCSETAF, &settings->main) < 0) + if (ioctl (fd, flushp ? TCSETAF : TCSETAW, &settings->main) < 0) return -1; #else @@ -1016,11 +1151,11 @@ emacs_set_tty (fd, settings, waitp) return -1; #else -#ifndef MSDOS +#ifndef DOS_NT /* I give up - I hope you have the BSD ioctls. */ - if (ioctl (fd, (waitp) ? TIOCSETP : TIOCSETN, &settings->main) < 0) + if (ioctl (fd, (flushp) ? TIOCSETP : TIOCSETN, &settings->main) < 0) return -1; -#endif /* not MSDOS */ +#endif /* not DOS_NT */ #endif #endif @@ -1047,7 +1182,11 @@ emacs_set_tty (fd, settings, waitp) /* The initial tty mode bits */ struct emacs_tty old_tty; -int term_initted; /* 1 if outer tty status has been recorded */ +/* 1 if we have been through init_sys_modes. */ +int term_initted; + +/* 1 if outer tty status has been recorded. */ +int old_tty_valid; #ifdef BSD4_1 /* BSD 4.1 needs to keep track of the lmode bits in order to start @@ -1075,7 +1214,7 @@ char _sobuf[BUFSIZ]; static struct ltchars new_ltchars = {-1,-1,-1,-1,-1,-1}; #endif #ifdef HAVE_TCHARS - static struct tchars new_tchars = {-1,-1,-1,-1,-1,-1}; +static struct tchars new_tchars = {-1,-1,-1,-1,-1,-1}; #endif init_sys_modes () @@ -1089,6 +1228,8 @@ init_sys_modes () #endif #endif + Vtty_erase_char = Qnil; + if (noninteractive) return; @@ -1129,15 +1270,31 @@ init_sys_modes () narrow_foreground_group (); #endif - EMACS_GET_TTY (input_fd, &old_tty); - +#ifdef HAVE_WINDOW_SYSTEM + /* Emacs' window system on MSDOG uses the `internal terminal' and therefore + needs the initialization code below. */ if (!read_socket_hook && EQ (Vwindow_system, Qnil)) +#endif { + EMACS_GET_TTY (input_fd, &old_tty); + + old_tty_valid = 1; + tty = old_tty; #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) + XSETINT (Vtty_erase_char, old_tty.main.c_cc[VERASE]); + +#ifdef DGUX + /* This allows meta to be sent on 8th bit. */ + tty.main.c_iflag &= ~INPCK; /* don't check input for parity */ +#endif tty.main.c_iflag |= (IGNBRK); /* Ignore break condition */ tty.main.c_iflag &= ~ICRNL; /* Disable map of CR to NL on input */ +#ifdef INLCR /* I'm just being cautious, + since I can't check how widespread INLCR is--rms. */ + tty.main.c_iflag &= ~INLCR; /* Disable map of NL to CR on input */ +#endif #ifdef ISTRIP tty.main.c_iflag &= ~ISTRIP; /* don't strip 8th bit on input */ #endif @@ -1199,10 +1356,21 @@ init_sys_modes () #ifdef VDISCARD tty.main.c_cc[VDISCARD] = CDISABLE; #endif /* VDISCARD */ +#ifdef VSTART + tty.main.c_cc[VSTART] = CDISABLE; +#endif /* VSTART */ +#ifdef VSTOP + tty.main.c_cc[VSTOP] = CDISABLE; +#endif /* VSTOP */ #endif /* mips or HAVE_TCATTR */ +#ifdef SET_LINE_DISCIPLINE + /* Need to explicitly request TERMIODISC line discipline or + Ultrix's termios does not work correctly. */ + tty.main.c_line = SET_LINE_DISCIPLINE; +#endif #ifdef AIX #ifndef IBMR2AIX - /* AIX enhanced edit loses NULs, so disable it */ + /* AIX enhanced edit loses NULs, so disable it. */ tty.main.c_line = 0; tty.main.c_iflag &= ~ASCEDIT; #else @@ -1211,6 +1379,15 @@ init_sys_modes () tty.main.c_cc[VSUSP] = 255; tty.main.c_cc[VDSUSP] = 255; #endif /* IBMR2AIX */ + if (flow_control) + { +#ifdef VSTART + tty.main.c_cc[VSTART] = '\021'; +#endif /* VSTART */ +#ifdef VSTOP + tty.main.c_cc[VSTOP] = '\023'; +#endif /* VSTOP */ + } /* Also, PTY overloads NUL and BREAK. don't ignore break, but don't signal either, so it looks like NUL. This really serves a purpose only if running in an XTERM window @@ -1229,12 +1406,13 @@ init_sys_modes () tty.main.tt_char &= ~TT$M_TTSYNC; tty.main.tt2_char |= TT2$M_PASTHRU | TT2$M_XON; #else /* not VMS (BSD, that is) */ -#ifndef MSDOS +#ifndef DOS_NT + Vtty_erase_char = tty.main.sg_erase; tty.main.sg_flags &= ~(ECHO | CRMOD | XTABS); if (meta_key) tty.main.sg_flags |= ANYP; tty.main.sg_flags |= interrupt_input ? RAW : CBREAK; -#endif +#endif /* not DOS_NT */ #endif /* not VMS (BSD, that is) */ #endif /* not HAVE_TERMIO */ @@ -1273,7 +1451,8 @@ init_sys_modes () tty.ltchars = new_ltchars; #endif /* HAVE_LTCHARS */ #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */ - internal_terminal_init (); + if (!term_initted) + internal_terminal_init (); dos_ttraw (); #endif @@ -1291,7 +1470,13 @@ init_sys_modes () #endif #endif -#ifdef AIX +#if defined (HAVE_TERMIOS) || defined (HPUX9) +#ifdef TCOON + if (!flow_control) tcflow (input_fd, TCOON); +#endif +#endif + +#ifdef AIXHFT hft_init (); #ifdef IBMR2AIX { @@ -1303,7 +1488,7 @@ init_sys_modes () write (1, "\033[20l", 5); } #endif -#endif +#endif /* AIXHFT */ #ifdef VMS /* Appears to do nothing when in PASTHRU mode. @@ -1317,11 +1502,12 @@ init_sys_modes () #ifdef F_SETFL #ifndef F_SETOWN_BUG #ifdef F_GETOWN /* F_SETFL does not imply existence of F_GETOWN */ - if (interrupt_input) + if (interrupt_input + && ! read_socket_hook && EQ (Vwindow_system, Qnil)) { old_fcntl_owner = fcntl (input_fd, F_GETOWN, 0); fcntl (input_fd, F_SETOWN, getpid ()); - init_sigio (); + init_sigio (input_fd); } #endif /* F_GETOWN */ #endif /* F_SETOWN_BUG */ @@ -1329,7 +1515,7 @@ init_sys_modes () #ifdef BSD4_1 if (interrupt_input) - init_sigio (); + init_sigio (input_fd); #endif #ifdef VMS /* VMS sometimes has this symbol but lacks setvbuf. */ @@ -1343,7 +1529,13 @@ init_sys_modes () #else setbuf (stdout, _sobuf); #endif - set_terminal_modes (); +#ifdef HAVE_WINDOW_SYSTEM + /* Emacs' window system on MSDOG uses the `internal terminal' and therefore + needs the initialization code below. */ + if (! read_socket_hook && EQ (Vwindow_system, Qnil)) +#endif + set_terminal_modes (); + if (term_initted && no_redraw_on_reenter) { if (display_completed) @@ -1352,10 +1544,8 @@ init_sys_modes () else { frame_garbaged = 1; -#ifdef MULTI_FRAME if (FRAMEP (Vterminal_frame)) FRAME_GARBAGED_P (XFRAME (Vterminal_frame)) = 1; -#endif } term_initted = 1; @@ -1371,10 +1561,10 @@ tabs_safe_p () EMACS_GET_TTY (input_fd, &tty); return EMACS_TTY_TABS_OK (&tty); } - + /* Get terminal size from system. - Store number of lines into *heightp and width into *widthp. - If zero or a negative number is stored, the value is not valid. */ + Store number of lines into *HEIGHTP and width into *WIDTHP. + We store 0 if there's no valid information. */ get_frame_size (widthp, heightp) int *widthp, *heightp; @@ -1431,6 +1621,43 @@ get_frame_size (widthp, heightp) #endif /* not BSD-style */ } +/* Set the logical window size associated with descriptor FD + to HEIGHT and WIDTH. This is used mainly with ptys. */ + +int +set_window_size (fd, height, width) + int fd, height, width; +{ +#ifdef TIOCSWINSZ + + /* BSD-style. */ + struct winsize size; + size.ws_row = height; + size.ws_col = width; + + if (ioctl (fd, TIOCSWINSZ, &size) == -1) + return 0; /* error */ + else + return 1; + +#else +#ifdef TIOCSSIZE + + /* SunOS - style. */ + struct ttysize size; + size.ts_lines = height; + size.ts_cols = width; + + if (ioctl (fd, TIOCGSIZE, &size) == -1) + return 0; + else + return 1; +#else + return -1; +#endif /* not SunOS-style */ +#endif /* not BSD-style */ +} + /* Prepare the terminal for exiting Emacs; move the cursor to the bottom of the frame, turn off interrupt-driven I/O, etc. */ @@ -1443,13 +1670,17 @@ reset_sys_modes () } if (!term_initted) return; +#ifdef HAVE_WINDOW_SYSTEM + /* Emacs' window system on MSDOG uses the `internal terminal' and therefore + needs the clean-up code below. */ if (read_socket_hook || !EQ (Vwindow_system, Qnil)) return; +#endif cursor_to (FRAME_HEIGHT (selected_frame) - 1, 0); clear_end_of_line (FRAME_WIDTH (selected_frame)); /* clear_end_of_line may move the cursor */ cursor_to (FRAME_HEIGHT (selected_frame) - 1, 0); -#ifdef IBMR2AIX +#if defined (IBMR2AIX) && defined (AIXHFT) { /* HFT devices normally use ^J as a LF/CR. We forced it to do the LF only. Now, we need to reset it. */ @@ -1462,7 +1693,7 @@ reset_sys_modes () reset_terminal_modes (); fflush (stdout); -#ifdef BSD +#ifdef BSD_SYSTEM #ifndef BSD4_1 /* Avoid possible loss of output when changing terminal modes. */ fsync (fileno (stdout)); @@ -1488,14 +1719,22 @@ reset_sys_modes () reset_sigio (); #endif /* BSD4_1 */ - while (EMACS_SET_TTY (input_fd, &old_tty, 0) < 0 && errno == EINTR) - ; + if (old_tty_valid) + while (EMACS_SET_TTY (input_fd, &old_tty, 0) < 0 && errno == EINTR) + ; #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */ dos_ttcooked (); #endif -#ifdef AIX +#ifdef SET_LINE_DISCIPLINE + /* Ultrix's termios *ignores* any line discipline except TERMIODISC. + A different old line discipline is therefore not restored, yet. + Restore the old line discipline by hand. */ + ioctl (0, TIOCSETD, &old_tty.main.c_line); +#endif + +#ifdef AIXHFT hft_reset (); #endif @@ -1636,12 +1875,8 @@ kbd_input_ast () { struct input_event e; e.kind = ascii_keystroke; - XSET (e.code, Lisp_Int, c); -#ifdef MULTI_FRAME - XSET(e.frame_or_window, Lisp_Frame, selected_frame); -#else - e.frame_or_window = Qnil; -#endif + XSETINT (e.code, c); + XSETFRAME (e.frame_or_window, selected_frame); kbd_buffer_store_event (&e); } if (input_available_clear_time) @@ -1769,7 +2004,8 @@ sys_sleep (timeval) SYS$WAITFR (timer_ef); /* Wait for timer expiry only */ } -init_sigio () +init_sigio (fd) + int fd; { request_sigio (); } @@ -1812,7 +2048,7 @@ unrequest_sigio () * */ -#if !defined (CANNOT_UNEXEC) && !defined (HAVE_TEXT_START) +#ifndef HAVE_TEXT_START char * start_of_text () { @@ -1828,7 +2064,7 @@ start_of_text () #endif /* GOULD */ #endif /* TEXT_START */ } -#endif /* not CANNOT_UNEXEC and not HAVE_TEXT_START */ +#endif /* not HAVE_TEXT_START */ /* * Return the address of the start of the data segment prior to @@ -1851,7 +2087,7 @@ start_of_text () * at least on UniPlus, is temacs will have to be made unshared so * that text and data are contiguous. Then once loadup is complete, * unexec will produce a shared executable where the data can be - * at the normal shared text boundry and the startofdata variable + * at the normal shared text boundary and the startofdata variable * will be patched by unexec to the correct value. * */ @@ -1917,17 +2153,14 @@ end_of_data () #endif /* not CANNOT_DUMP */ -/* get_system_name returns as its value - a string for the Lisp function system-name to return. */ +/* init_system_name sets up the string for the Lisp function + system-name to return. */ #ifdef BSD4_1 #include #endif -/* Can't have this within the function since `static' is #defined to - nothing for some USG systems. */ -static char *get_system_name_cache; -static int get_system_name_predump_p; +extern Lisp_Object Vsystem_name; #ifndef BSD4_1 #ifndef VMS @@ -1938,108 +2171,165 @@ static int get_system_name_predump_p; #endif /* not VMS */ #endif /* not BSD4_1 */ -char * -get_system_name () +void +init_system_name () { #ifdef BSD4_1 - return sysname; + Vsystem_name = build_string (sysname); #else -#ifndef CANNOT_DUMP - /* If the cached value is from before the dump, and we've dumped - since then, then the cached value is no good. */ - if (get_system_name_predump_p && initialized && get_system_name_cache) - { - xfree (get_system_name_cache); - get_system_name_cache = 0; - } -#endif - if (!get_system_name_cache) - { - /* No cached value, so get the name from the system. */ #ifdef VMS - char *sp; - if ((sp = egetenv ("SYS$NODE")) == 0) - sp = "vax-vms"; - else - { - char *end; - - if ((end = index (sp, ':')) != 0) - *end = '\0'; - } - get_system_name_cache = (char *) xmalloc (strlen (sp) + 1); - strcpy (get_system_name_cache, sp); + char *sp, *end; + if ((sp = egetenv ("SYS$NODE")) == 0) + Vsystem_name = build_string ("vax-vms"); + else if ((end = index (sp, ':')) == 0) + Vsystem_name = build_string (sp); + else + Vsystem_name = make_string (sp, end - sp); #else #ifndef HAVE_GETHOSTNAME - struct utsname uts; - uname (&uts); - get_system_name_cache = (char *) xmalloc (strlen (uts.nodename) + 1); - strcpy (get_system_name_cache, uts.nodename); + struct utsname uts; + uname (&uts); + Vsystem_name = build_string (uts.nodename); #else /* HAVE_GETHOSTNAME */ - { - int hostname_size = 256; - char *hostname = (char *) xmalloc (hostname_size); - - /* Try to get the host name; if the buffer is too short, try - again. Apparently, the only indication gethostname gives of - whether the buffer was large enough is the presence or absence - of a '\0' in the string. Eech. */ - for (;;) - { - gethostname (hostname, hostname_size - 1); - hostname[hostname_size - 1] = '\0'; + unsigned int hostname_size = 256; + char *hostname = (char *) alloca (hostname_size); + + /* Try to get the host name; if the buffer is too short, try + again. Apparently, the only indication gethostname gives of + whether the buffer was large enough is the presence or absence + of a '\0' in the string. Eech. */ + for (;;) + { + gethostname (hostname, hostname_size - 1); + hostname[hostname_size - 1] = '\0'; - /* Was the buffer large enough for the '\0'? */ - if (strlen (hostname) < hostname_size - 1) - break; + /* Was the buffer large enough for the '\0'? */ + if (strlen (hostname) < hostname_size - 1) + break; - hostname_size <<= 1; - hostname = (char *) xrealloc (hostname, hostname_size); - } - get_system_name_cache = hostname; + hostname_size <<= 1; + hostname = (char *) alloca (hostname_size); + } #ifdef HAVE_SOCKETS - /* Turn the hostname into the official, fully-qualified hostname. - Don't do this if we're going to dump; this can confuse system - libraries on some machines and make the dumped emacs core dump. */ + /* Turn the hostname into the official, fully-qualified hostname. + Don't do this if we're going to dump; this can confuse system + libraries on some machines and make the dumped emacs core dump. */ #ifndef CANNOT_DUMP - if (initialized) + if (initialized) #endif /* not CANNOT_DUMP */ - { - struct hostent *hp = gethostbyname (hostname); - if (hp) - { - char *fqdn = hp->h_name; - if (!index (fqdn, '.')) - { - /* We still don't have a fully qualified domain name. - Try to find one in the list of alternate names */ - char **alias = hp->h_aliases; - while (*alias && !index (*alias, '.')) - alias++; - if (*alias) - fqdn = *alias; - } - hostname = (char *) xrealloc (hostname, strlen (fqdn) + 1); - strcpy (hostname, fqdn); - } - } + { + struct hostent *hp; + int count; + for (count = 0;; count++) + { +#ifdef TRY_AGAIN + h_errno = 0; +#endif + hp = gethostbyname (hostname); +#ifdef TRY_AGAIN + if (! (hp == 0 && h_errno == TRY_AGAIN)) +#endif + break; + if (count >= 5) + break; + Fsleep_for (make_number (1), Qnil); + } + if (hp) + { + char *fqdn = (char *) hp->h_name; + char *p; + + if (!index (fqdn, '.')) + { + /* We still don't have a fully qualified domain name. + Try to find one in the list of alternate names */ + char **alias = hp->h_aliases; + while (*alias && !index (*alias, '.')) + alias++; + if (*alias) + fqdn = *alias; + } + hostname = fqdn; +#if 0 + /* Convert the host name to lower case. */ + /* Using ctype.h here would introduce a possible locale + dependence that is probably wrong for hostnames. */ + p = hostname; + while (*p) + { + if (*p >= 'A' && *p <= 'Z') + *p += 'a' - 'A'; + p++; + } +#endif + } + } #endif /* HAVE_SOCKETS */ - get_system_name_cache = hostname; - } +#if (HAVE_SYSINFO && defined (SI_SRPC_DOMAIN)) || HAVE_GETDOMAINNAME + if (! index (hostname, '.')) + { + /* The hostname is not fully qualified. Append the domain name. */ + + int hostlen = strlen (hostname); + int domain_size = 256; + + for (;;) + { + char *fqdn = (char *) alloca (hostlen + 1 + domain_size); + char *domain = fqdn + hostlen + 1; +#if HAVE_SYSINFO && defined (SI_SRPC_DOMAIN) + int sys_domain_size = sysinfo (SI_SRPC_DOMAIN, domain, domain_size); + if (sys_domain_size <= 0) + break; + if (domain_size < sys_domain_size) + { + domain_size = sys_domain_size; + continue; + } +#else /* HAVE_GETDOMAINNAME */ + if (getdomainname (domain, domain_size - 1) != 0 || ! *domain) + break; + domain[domain_size - 1] = '\0'; + if (strlen (domain) == domain_size - 1) + { + domain_size *= 2; + continue; + } + /* If we get an answer which means "domain unknown", + don't use a domain. */ + if (!strcmp (domain, "(none)")) + { + *domain = 0; + break; + } +#endif /* HAVE_GETDOMAINNAME */ + strcpy (fqdn, hostname); + fqdn[hostlen] = '.'; + hostname = fqdn; + break; + } + } +#endif /*! ((HAVE_SYSINFO && defined (SI_SRPC_DOMAIN)) || HAVE_GETDOMAINNAME)*/ + Vsystem_name = build_string (hostname); #endif /* HAVE_GETHOSTNAME */ #endif /* VMS */ -#ifndef CANNOT_DUMP - get_system_name_predump_p = !initialized; -#endif - } - return (get_system_name_cache); #endif /* BSD4_1 */ + { + unsigned char *p; + for (p = XSTRING (Vsystem_name)->data; *p; p++) + if (*p == ' ' || *p == '\t') + *p = '-'; + } } +#ifndef MSDOS #ifndef VMS -#ifndef HAVE_SELECT +#if !defined (HAVE_SELECT) || defined (BROKEN_SELECT_NON_X) -#ifdef HAVE_X_WINDOWS +#include "sysselect.h" +#undef select + +#if defined (HAVE_X_WINDOWS) && !defined (HAVE_SELECT) /* Cause explanatory error message at compile time, since the select emulation is not good enough for X. */ int *x = &x_windows_lose_if_no_select_system_call; @@ -2074,15 +2364,18 @@ select_alarm () longjmp (read_alarm_throw, 1); } +#ifndef WINDOWSNT /* Only rfds are checked. */ int -select (nfds, rfds, wfds, efds, timeout) +sys_select (nfds, rfds, wfds, efds, timeout) int nfds; - int *rfds, *wfds, *efds, *timeout; + SELECT_TYPE *rfds, *wfds, *efds; + EMACS_TIME *timeout; { - int ravail = 0, orfds = 0, old_alarm; - int timeoutval = timeout ? *timeout : 100000; - int *local_timeout = &timeoutval; + int ravail = 0, old_alarm; + SELECT_TYPE orfds; + int timeoutval; + int *local_timeout; extern int proc_buffered_char[]; #ifndef subprocesses int process_tick = 0, update_tick = 0; @@ -2092,52 +2385,64 @@ select (nfds, rfds, wfds, efds, timeout) SIGTYPE (*old_trap) (); unsigned char buf; +#if defined (HAVE_SELECT) && defined (HAVE_X_WINDOWS) + /* If we're using X, then the native select will work; we only need the + emulation for non-X usage. */ + if (!NILP (Vwindow_system)) + return select (nfds, rfds, wfds, efds, timeout); +#endif + timeoutval = timeout ? EMACS_SECS (*timeout) : 100000; + local_timeout = &timeoutval; + FD_ZERO (&orfds); if (rfds) { orfds = *rfds; - *rfds = 0; + FD_ZERO (rfds); } if (wfds) - *wfds = 0; + FD_ZERO (wfds); if (efds) - *efds = 0; + FD_ZERO (efds); /* If we are looking only for the terminal, with no timeout, just read it and wait -- that's more efficient. */ - if (orfds == 1 && *local_timeout == 100000 && process_tick == update_tick) + if (*local_timeout == 100000 && process_tick == update_tick + && FD_ISSET (0, &orfds)) { + int fd; + for (fd = 1; fd < nfds; ++fd) + if (FD_ISSET (fd, &orfds)) + goto hardway; if (! detect_input_pending ()) read_input_waiting (); - *rfds = 1; + FD_SET (0, rfds); return 1; } + hardway: /* Once a second, till the timer expires, check all the flagged read * descriptors to see if any input is available. If there is some then * set the corresponding bit in the return copy of rfds. */ while (1) { - register int to_check, bit, fd; + register int to_check, fd; if (rfds) { - for (to_check = nfds, bit = 1, fd = 0; --to_check >= 0; bit <<= 1, fd++) + for (to_check = nfds, fd = 0; --to_check >= 0; fd++) { - if (orfds & bit) + if (FD_ISSET (fd, &orfds)) { int avail = 0, status = 0; - if (bit == 1) + if (fd == 0) avail = detect_input_pending (); /* Special keyboard handler */ else { #ifdef FIONREAD status = ioctl (fd, FIONREAD, &avail); #else /* no FIONREAD */ -#ifdef MSDOS - abort (); /* I don't think we need it. */ -#else /* not MSDOS */ /* Hoping it will return -1 if nothing available or 0 if all 0 chars requested are read. */ if (proc_buffered_char[fd] >= 0) @@ -2148,12 +2453,11 @@ select (nfds, rfds, wfds, efds, timeout) if (avail > 0) proc_buffered_char[fd] = buf; } -#endif /* not MSDOS */ #endif /* no FIONREAD */ } if (status >= 0 && avail > 0) { - (*rfds) |= bit; + FD_SET (fd, rfds); ravail++; } } @@ -2169,14 +2473,10 @@ select (nfds, rfds, wfds, efds, timeout) while (select_alarmed == 0 && *local_timeout != 0 && process_tick == update_tick) { -#ifdef MSDOS - sleep_or_kbd_hit (SELECT_PAUSE, (orfds & 1) != 0); - select_alarm (); -#else /* not MSDOS */ /* If we are interested in terminal input, wait by reading the terminal. That makes instant wakeup for terminal input at least. */ - if (orfds & 1) + if (FD_ISSET (0, &orfds)) { read_input_waiting (); if (detect_input_pending ()) @@ -2184,7 +2484,6 @@ select (nfds, rfds, wfds, efds, timeout) } else pause (); -#endif /* not MSDOS */ } (*local_timeout) -= SELECT_PAUSE; /* Reset the old alarm if there was one */ @@ -2204,12 +2503,13 @@ select (nfds, rfds, wfds, efds, timeout) } return ravail; } +#endif /* not WINDOWSNT */ /* Read keyboard input into the standard buffer, waiting for at least one character. */ -/* Make all keyboard buffers much bigger when using X windows. */ -#ifdef HAVE_X_WINDOWS +/* Make all keyboard buffers much bigger when using a window system. */ +#ifdef HAVE_WINDOW_SYSTEM #define BUFFER_SIZE_FACTOR 16 #else #define BUFFER_SIZE_FACTOR 1 @@ -2238,7 +2538,7 @@ read_input_waiting () /* Don't look at input that follows a C-g too closely. This reduces lossage due to autorepeat on C-g. */ if (buf[i].kind == ascii_keystroke - && XINT(buf[i].code) == quit_char) + && buf[i].code == quit_char) break; } } @@ -2249,7 +2549,7 @@ read_input_waiting () /* Scan the chars for C-g and store them in kbd_buffer. */ e.kind = ascii_keystroke; - e.frame_or_window = selected_frame; + XSETFRAME (e.frame_or_window, selected_frame); e.modifiers = 0; for (i = 0; i < nread; i++) { @@ -2264,7 +2564,7 @@ read_input_waiting () buf[i] &= ~0x80; } - XSET (e.code, Lisp_Int, buf[i]); + XSETINT (e.code, buf[i]); kbd_buffer_store_event (&e); /* Don't look at input that follows a C-g too closely. This reduces lossage due to autorepeat on C-g. */ @@ -2276,6 +2576,7 @@ read_input_waiting () #endif /* not HAVE_SELECT */ #endif /* not VMS */ +#endif /* not MSDOS */ #ifdef BSD4_1 /* @@ -2297,12 +2598,13 @@ sys_open (path, oflag, mode) return open (path, oflag); } -init_sigio () +init_sigio (fd) + int fd; { if (noninteractive) return; lmode = LINTRUP | lmode; - ioctl (0, TIOCLSET, &lmode); + ioctl (fd, TIOCLSET, &lmode); } reset_sigio () @@ -2385,11 +2687,6 @@ init_signals () signal_handler_t sys_signal (int signal_number, signal_handler_t action) { -#ifdef DGUX - /* This gets us restartable system calls for efficiency. - The "else" code will works as well. */ - return (berk_signal (signal_number, action)); -#else sigemptyset (&new_action.sa_mask); new_action.sa_handler = action; #ifdef SA_RESTART @@ -2402,7 +2699,6 @@ sys_signal (int signal_number, signal_handler_t action) #endif sigaction (signal_number, &new_action, &old_action); return (old_action.sa_handler); -#endif /* DGUX */ } #ifndef __GNUC__ @@ -2457,122 +2753,80 @@ sys_sigsetmask (sigset_t new_mask) #endif /* POSIX_SIGNALS */ -#ifndef BSTRING +#ifndef HAVE_RANDOM +#ifdef random +#define HAVE_RANDOM +#endif +#endif -#ifndef bzero +/* Figure out how many bits the system's random number generator uses. + `random' and `lrand48' are assumed to return 31 usable bits. + BSD `rand' returns a 31 bit value but the low order bits are unusable; + so we'll shift it and treat it like the 15-bit USG `rand'. */ + +#ifndef RAND_BITS +# ifdef HAVE_RANDOM +# define RAND_BITS 31 +# else /* !HAVE_RANDOM */ +# ifdef HAVE_LRAND48 +# define RAND_BITS 31 +# define random lrand48 +# else /* !HAVE_LRAND48 */ +# define RAND_BITS 15 +# if RAND_MAX == 32767 +# define random rand +# else /* RAND_MAX != 32767 */ +# if RAND_MAX == 2147483647 +# define random() (rand () >> 16) +# else /* RAND_MAX != 2147483647 */ +# ifdef USG +# define random rand +# else +# define random() (rand () >> 16) +# endif /* !USG */ +# endif /* RAND_MAX != 2147483647 */ +# endif /* RAND_MAX != 32767 */ +# endif /* !HAVE_LRAND48 */ +# endif /* !HAVE_RANDOM */ +#endif /* !RAND_BITS */ void -bzero (b, length) - register char *b; - register int length; -{ -#ifdef VMS - short zero = 0; - long max_str = 65535; - - while (length > max_str) { - (void) LIB$MOVC5 (&zero, &zero, &zero, &max_str, b); - length -= max_str; - b += max_str; - } - max_str = length; - (void) LIB$MOVC5 (&zero, &zero, &zero, &max_str, b); -#else - while (length-- > 0) - *b++ = 0; -#endif /* not VMS */ -} - -#endif /* no bzero */ - -#ifndef bcopy -/* Saying `void' requires a declaration, above, where bcopy is used - and that declaration causes pain for systems where bcopy is a macro. */ -bcopy (b1, b2, length) - register char *b1; - register char *b2; - register int length; -{ -#ifdef VMS - long max_str = 65535; - - while (length > max_str) { - (void) LIB$MOVC3 (&max_str, b1, b2); - length -= max_str; - b1 += max_str; - b2 += max_str; - } - max_str = length; - (void) LIB$MOVC3 (&length, b1, b2); -#else - while (length-- > 0) - *b2++ = *b1++; -#endif /* not VMS */ -} -#endif /* no bcopy */ - -#ifndef bcmp -int -bcmp (b1, b2, length) /* This could be a macro! */ - register char *b1; - register char *b2; - register int length; +seed_random (arg) + long arg; { -#ifdef VMS - struct dsc$descriptor_s src1 = {length, DSC$K_DTYPE_T, DSC$K_CLASS_S, b1}; - struct dsc$descriptor_s src2 = {length, DSC$K_DTYPE_T, DSC$K_CLASS_S, b2}; - - return STR$COMPARE (&src1, &src2); +#ifdef HAVE_RANDOM + srandom ((unsigned int)arg); #else - while (length-- > 0) - if (*b1++ != *b2++) - return 1; - - return 0; -#endif /* not VMS */ +# ifdef HAVE_LRAND48 + srand48 (arg); +# else + srand ((unsigned int)arg); +# endif +#endif } -#endif /* no bcmp */ -#endif /* not BSTRING */ - -#ifndef HAVE_RANDOM -#ifdef USG /* - * The BSD random returns numbers in the range of - * 0 to 2e31 - 1. The USG rand returns numbers in the - * range of 0 to 2e15 - 1. This is probably not significant - * in this usage. + * Build a full Emacs-sized word out of whatever we've got. + * This suffices even for a 64-bit architecture with a 15-bit rand. */ - long -random () -{ - /* Arrange to return a range centered on zero. */ - return (rand () << 15) + rand () - (1 << 29); -} - -srandom (arg) - int arg; -{ - srand (arg); +get_random () +{ + long val = random (); +#if VALBITS > RAND_BITS + val = (val << RAND_BITS) ^ random (); +#if VALBITS > 2*RAND_BITS + val = (val << RAND_BITS) ^ random (); +#if VALBITS > 3*RAND_BITS + val = (val << RAND_BITS) ^ random (); +#if VALBITS > 4*RAND_BITS + val = (val << RAND_BITS) ^ random (); +#endif /* need at least 5 */ +#endif /* need at least 4 */ +#endif /* need at least 3 */ +#endif /* need at least 2 */ + return val & ((1L << VALBITS) - 1); } - -#endif /* USG */ - -#ifdef BSD4_1 -long random () -{ - /* Arrange to return a range centered on zero. */ - return (rand () << 15) + rand () - (1 << 29); -} - -srandom (arg) - int arg; -{ - srand (arg); -} -#endif /* BSD4_1 */ -#endif #ifdef WRONG_NAME_INSQUE @@ -2640,7 +2894,7 @@ sys_abort () #ifdef VMS #ifdef LINK_CRTL_SHARE -#ifdef SHAREABLE_LIB_BUG +#ifdef SHARABLE_LIB_BUG /* Variables declared noshare and initialized in sharable libraries cannot be shared. The VMS linker incorrectly forces you to use a private version which is uninitialized... If not for this "feature", we @@ -2686,11 +2940,12 @@ char *sys_errlist[] = "I/O stream empty", "vax/vms specific error code nontranslatable error" }; -#endif /* SHAREABLE_LIB_BUG */ +#endif /* SHARABLE_LIB_BUG */ #endif /* LINK_CRTL_SHARE */ #endif /* VMS */ #ifndef HAVE_STRERROR +#ifndef WINDOWSNT char * strerror (errnum) int errnum; @@ -2702,7 +2957,7 @@ strerror (errnum) return sys_errlist[errnum]; return (char *) "Unknown error"; } - +#endif /* not WINDOWSNT */ #endif /* ! HAVE_STRERROR */ #ifdef INTERRUPTIBLE_OPEN @@ -2727,10 +2982,19 @@ sys_open (path, oflag, mode) sys_close (fd) int fd; { + int did_retry = 0; register int rtnval; while ((rtnval = close (fd)) == -1 - && (errno == EINTR)); + && (errno == EINTR)) + did_retry = 1; + + /* If close is interrupted SunOS 4.1 may or may not have closed the + file descriptor. If it did the second close will fail with + errno = EBADF. That means we have succeeded. */ + if (rtnval == -1 && did_retry && errno == EBADF) + return 0; + return rtnval; } @@ -2783,16 +3047,17 @@ sys_write (fildes, buf, nbyte) #endif /* INTERRUPTIBLE_IO */ #ifndef HAVE_VFORK - +#ifndef WINDOWSNT /* - * Substitute fork for vfork on USG flavors. + * Substitute fork for vfork on USG flavors. */ +VFORK_RETURN_TYPE vfork () { return (fork ()); } - +#endif /* not WINDOWSNT */ #endif /* not HAVE_VFORK */ #ifdef USG @@ -2844,10 +3109,12 @@ char *sys_siglist[NSIG + 1] = "LAN I/O interrupt", /* 25 SIGAIO */ "PTY I/O interrupt", /* 26 SIGPTY */ "I/O intervention required", /* 27 SIGIOINT */ +#ifdef AIXHFT "HFT grant", /* 28 SIGGRANT */ "HFT retract", /* 29 SIGRETRACT */ "HFT sound done", /* 30 SIGSOUND */ "HFT input ready", /* 31 SIGMSG */ +#endif #else /* not AIX */ "bogus signal", /* 0 */ "hangup", /* 1 SIGHUP */ @@ -2872,7 +3139,7 @@ char *sys_siglist[NSIG + 1] = #ifdef sun "window size change", /* 20 SIGWINCH */ "urgent socket condition", /* 21 SIGURG */ - "pollable event occured", /* 22 SIGPOLL */ + "pollable event occurred", /* 22 SIGPOLL */ "stop (cannot be caught or ignored)", /* 23 SIGSTOP */ "user stop requested from tty", /* 24 SIGTSTP */ "stopped process has been continued", /* 25 SIGCONT */ @@ -2884,8 +3151,12 @@ char *sys_siglist[NSIG + 1] = "exceeded file size limit", /* 31 SIGXFSZ */ "process's lwps are blocked", /* 32 SIGWAITING */ "special signal used by thread library", /* 33 SIGLWP */ +#ifdef SIGFREEZE "Special Signal Used By CPR", /* 34 SIGFREEZE */ +#endif +#ifdef SIGTHAW "Special Signal Used By CPR", /* 35 SIGTHAW */ +#endif #endif /* sun */ #endif /* not AIX */ 0 @@ -2951,37 +3222,6 @@ rename (from, to) #endif -#ifdef MISSING_UTIMES - -/* HPUX (among others) sets HAVE_TIMEVAL but does not implement utimes. */ - -utimes () -{ -} -#endif - -#ifdef IRIS_UTIME - -/* The IRIS (3.5) has timevals, but uses sys V utime, and doesn't have the - utimbuf structure defined anywhere but in the man page. */ - -struct utimbuf - { - long actime; - long modtime; - }; - -utimes (name, tvp) - char *name; - struct timeval tvp[]; -{ - struct utimbuf utb; - utb.actime = tvp[0].tv_sec; - utb.modtime = tvp[1].tv_sec; - utime (name, &utb); -} -#endif /* IRIS_UTIME */ - #ifdef HPUX #ifndef HAVE_PERROR @@ -3321,6 +3561,24 @@ readdirver (dirp) #endif /* NONSYSTEM_DIR_LIBRARY */ +int +set_file_times (filename, atime, mtime) + char *filename; + EMACS_TIME atime, mtime; +{ +#ifdef HAVE_UTIMES + struct timeval tv[2]; + tv[0] = atime; + tv[1] = mtime; + return utimes (filename, tv); +#else /* not HAVE_UTIMES */ + struct utimbuf utb; + utb.actime = EMACS_SECS (atime); + utb.modtime = EMACS_SECS (mtime); + return utime (filename, &utb); +#endif /* not HAVE_UTIMES */ +} + /* mkdir and rmdir functions, for systems which don't have them. */ #ifndef HAVE_MKDIR @@ -3433,17 +3691,17 @@ rmdir (dpath) dup2 (fd, 1); dup2 (fd, 2); } - wait_for_termination (cpid); - if (synch_process_death != 0 || synch_process_retcode != 0) - return -1; /* /bin/rmdir failed */ + execl ("/bin/rmdir", "rmdir", dpath, (char *) 0); + _exit (-1); /* Can't exec /bin/rmdir */ + default: /* Parent process */ - while (cpid != wait (&status)); /* Wait for kid to finish */ + wait_for_termination (cpid); } - if (WIFSIGNALED (status) || WEXITSTATUS (status) != 0) + if (synch_process_death != 0 || synch_process_retcode != 0) { errno = EIO; /* We don't know why, but */ - return -1; /* /bin/mkdir failed */ + return -1; /* /bin/rmdir failed */ } return 0; @@ -3561,8 +3819,8 @@ sys_access (path, mode) #else /* not VMS4_4 */ #include -#define ACE$M_WRITE 2 -#define ACE$C_KEYID 1 +#define ACE$M_WRITE 2 +#define ACE$C_KEYID 1 static unsigned short memid, grpid; static unsigned int uic; @@ -3595,13 +3853,13 @@ sys_access (filename, type) grpid = uic >> 16; } - if (type != 2) /* not checking write access */ + if (type != 2) /* not checking write access */ return access (filename, type); /* Check write protection. */ -#define CHECKPRIV(bit) (prvmask.bit) -#define WRITEABLE(field) (! ((xab.xab$w_pro >> field) & XAB$M_NOWRITE)) +#define CHECKPRIV(bit) (prvmask.bit) +#define WRITABLE(field) (! ((xab.xab$w_pro >> field) & XAB$M_NOWRITE)) /* Find privilege bits */ status = SYS$SETPRV (0, 0, 0, prvmask); @@ -3622,7 +3880,7 @@ sys_access (filename, type) return -1; SYS$CLOSE (&fab, 0, 0); /* Check system access */ - if (CHECKPRIV (PRV$V_SYSPRV) && WRITEABLE (XAB$V_SYS)) + if (CHECKPRIV (PRV$V_SYSPRV) && WRITABLE (XAB$V_SYS)) return 0; /* Check ACL entries, if any */ acl_controlled = 0; @@ -3648,16 +3906,16 @@ sys_access (filename, type) return -1; } /* No ACL entries specified, check normal protection */ - if (WRITEABLE (XAB$V_WLD)) /* World writeable */ + if (WRITABLE (XAB$V_WLD)) /* World writable */ return 0; - if (WRITEABLE (XAB$V_GRP) && + if (WRITABLE (XAB$V_GRP) && (unsigned short) (xab.xab$l_uic >> 16) == grpid) - return 0; /* Group writeable */ - if (WRITEABLE (XAB$V_OWN) && + return 0; /* Group writable */ + if (WRITABLE (XAB$V_OWN) && (xab.xab$l_uic & 0xFFFF) == memid) - return 0; /* Owner writeable */ + return 0; /* Owner writable */ - return -1; /* Not writeable */ + return -1; /* Not writable */ } #endif /* not VMS4_4 */ #endif /* access */ @@ -4340,7 +4598,7 @@ cnv_uaf_pw (up) retpw.pw_uid = up->uaf$w_mem; retpw.pw_gid = up->uaf$w_grp; - /* I suppose this is not the best sytle, to possibly overwrite one + /* I suppose this is not the best style, to possibly overwrite one byte beyond the end of the field, but what the heck... */ ptr = &up->uaf$t_username[UAF$S_USERNAME]; while (ptr[-1] == ' ') @@ -4706,7 +4964,7 @@ srandom (seed) } #endif /* VMS */ -#ifdef AIX +#ifdef AIXHFT /* Called from init_sys_modes. */ hft_init () @@ -4798,4 +5056,111 @@ hft_reset () hftctl (0, HFSKBD, &buf); } -#endif /* AIX */ +#endif /* AIXHFT */ + +#ifdef USE_DL_STUBS + +/* These are included on Sunos 4.1 when we do not use shared libraries. + X11 libraries may refer to these functions but (we hope) do not + actually call them. */ + +void * +dlopen () +{ + return 0; +} + +void * +dlsym () +{ + return 0; +} + +int +dlclose () +{ + return -1; +} + +#endif /* USE_DL_STUBS */ + +#ifndef BSTRING + +#ifndef bzero + +void +bzero (b, length) + register char *b; + register int length; +{ +#ifdef VMS + short zero = 0; + long max_str = 65535; + + while (length > max_str) { + (void) LIB$MOVC5 (&zero, &zero, &zero, &max_str, b); + length -= max_str; + b += max_str; + } + max_str = length; + (void) LIB$MOVC5 (&zero, &zero, &zero, &max_str, b); +#else + while (length-- > 0) + *b++ = 0; +#endif /* not VMS */ +} + +#endif /* no bzero */ +#endif /* BSTRING */ + +#if (!defined (BSTRING) && !defined (bcopy)) || defined (NEED_BCOPY) +#undef bcopy + +/* Saying `void' requires a declaration, above, where bcopy is used + and that declaration causes pain for systems where bcopy is a macro. */ +bcopy (b1, b2, length) + register char *b1; + register char *b2; + register int length; +{ +#ifdef VMS + long max_str = 65535; + + while (length > max_str) { + (void) LIB$MOVC3 (&max_str, b1, b2); + length -= max_str; + b1 += max_str; + b2 += max_str; + } + max_str = length; + (void) LIB$MOVC3 (&length, b1, b2); +#else + while (length-- > 0) + *b2++ = *b1++; +#endif /* not VMS */ +} +#endif /* (defined (BSTRING) && !defined (bcopy)) || defined (NEED_BCOPY) */ + +#ifndef BSTRING +#ifndef bcmp +int +bcmp (b1, b2, length) /* This could be a macro! */ + register char *b1; + register char *b2; + register int length; +{ +#ifdef VMS + struct dsc$descriptor_s src1 = {length, DSC$K_DTYPE_T, DSC$K_CLASS_S, b1}; + struct dsc$descriptor_s src2 = {length, DSC$K_DTYPE_T, DSC$K_CLASS_S, b2}; + + return STR$COMPARE (&src1, &src2); +#else + while (length-- > 0) + if (*b1++ != *b2++) + return 1; + + return 0; +#endif /* not VMS */ +} +#endif /* no bcmp */ +#endif /* not BSTRING */