diff options
Diffstat (limited to 'erts/etc/unix')
| -rw-r--r-- | erts/etc/unix/Install.src | 42 | ||||
| -rw-r--r-- | erts/etc/unix/cerl.src | 6 | ||||
| -rw-r--r-- | erts/etc/unix/erl.src.src | 6 | ||||
| -rw-r--r-- | erts/etc/unix/etp-commands | 34 | ||||
| -rw-r--r-- | erts/etc/unix/run_erl.c | 155 | ||||
| -rw-r--r-- | erts/etc/unix/to_erl.c | 9 |
6 files changed, 163 insertions, 89 deletions
diff --git a/erts/etc/unix/Install.src b/erts/etc/unix/Install.src index 8f40c43874..2dcd070a6d 100644 --- a/erts/etc/unix/Install.src +++ b/erts/etc/unix/Install.src @@ -2,7 +2,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 1996-2010. All Rights Reserved. +# Copyright Ericsson AB 1996-2012. All Rights Reserved. # # The contents of this file are subject to the Erlang Public License, # Version 1.1, (the "License"); you may not use this file except in @@ -66,12 +66,12 @@ then exit 1 fi -if [ ! -d $ERL_ROOT/bin ] +if [ ! -d "$ERL_ROOT/bin" ] then - mkdir $ERL_ROOT/bin + mkdir "$ERL_ROOT/bin" fi -cd $ERL_ROOT/erts-%I_VSN%/bin +cd "$ERL_ROOT/erts-%I_VSN%/bin" sed -e "s;%FINAL_ROOTDIR%;$TARGET_ERL_ROOT;" erl.src > erl chmod 755 erl @@ -79,18 +79,18 @@ chmod 755 erl # # Create start file for embedded system use, # -(cd $ERL_ROOT/erts-%I_VSN%/bin; +(cd "$ERL_ROOT/erts-%I_VSN%/bin"; sed -e "s;%FINAL_ROOTDIR%;$TARGET_ERL_ROOT;" start.src > start; chmod 755 start) -cd $ERL_ROOT/bin +cd "$ERL_ROOT/bin" -cp -p $ERL_ROOT/erts-%I_VSN%/bin/erl . -cp -p $ERL_ROOT/erts-%I_VSN%/bin/erlc . -cp -p $ERL_ROOT/erts-%I_VSN%/bin/dialyzer . -cp -p $ERL_ROOT/erts-%I_VSN%/bin/typer . -cp -p $ERL_ROOT/erts-%I_VSN%/bin/ct_run . -cp -p $ERL_ROOT/erts-%I_VSN%/bin/escript . +cp -p "$ERL_ROOT/erts-%I_VSN%/bin/erl" . +cp -p "$ERL_ROOT/erts-%I_VSN%/bin/erlc" . +cp -p "$ERL_ROOT/erts-%I_VSN%/bin/dialyzer" . +cp -p "$ERL_ROOT/erts-%I_VSN%/bin/typer" . +cp -p "$ERL_ROOT/erts-%I_VSN%/bin/ct_run" . +cp -p "$ERL_ROOT/erts-%I_VSN%/bin/escript" . # Remove in R16B ln -s ct_run run_test @@ -107,15 +107,15 @@ fi ln -s ../erts-%I_VSN%/bin/epmd epmd -cp -p $ERL_ROOT/erts-%I_VSN%/bin/run_erl . -cp -p $ERL_ROOT/erts-%I_VSN%/bin/to_erl . -cp -p $ERL_ROOT/erts-%I_VSN%/bin/start . -sed -e "s;%EMU%;%EMULATOR%%EMULATOR_NUMBER%;" $ERL_ROOT/erts-%I_VSN%/bin/start_erl.src > start_erl +cp -p "$ERL_ROOT/erts-%I_VSN%/bin/run_erl" . +cp -p "$ERL_ROOT/erts-%I_VSN%/bin/to_erl" . +cp -p "$ERL_ROOT/erts-%I_VSN%/bin/start" . +sed -e "s;%EMU%;%EMULATOR%%EMULATOR_NUMBER%;" "$ERL_ROOT/erts-%I_VSN%/bin/start_erl.src" > start_erl chmod 755 start_erl echo "" -echo %I_VSN% %I_SYSTEM_VSN% > $ERL_ROOT/releases/start_erl.data -sed -e "s;%ERL_ROOT%;$TARGET_ERL_ROOT;" $ERL_ROOT/releases/RELEASES.src > $ERL_ROOT/releases/RELEASES +echo %I_VSN% %I_SYSTEM_VSN% > "$ERL_ROOT/releases/start_erl.data" +sed -e "s;%ERL_ROOT%;$TARGET_ERL_ROOT;" "$ERL_ROOT/releases/RELEASES.src" > "$ERL_ROOT/releases/RELEASES" if [ "$start_option" = "query" ] then @@ -147,10 +147,10 @@ cp -p ../releases/%I_SYSTEM_VSN%/$Name.script start.script # Fixing the man pages # -if [ -d $ERL_ROOT/man ] +if [ -d "$ERL_ROOT/man" ] then - cd $ERL_ROOT - ./misc/format_man_pages $ERL_ROOT + cd "$ERL_ROOT" + ./misc/format_man_pages "$ERL_ROOT" fi exit 0 diff --git a/erts/etc/unix/cerl.src b/erts/etc/unix/cerl.src index 0b2d6512ea..e0d7404de7 100644 --- a/erts/etc/unix/cerl.src +++ b/erts/etc/unix/cerl.src @@ -2,7 +2,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 2003-2011. All Rights Reserved. +# Copyright Ericsson AB 2003-2012. All Rights Reserved. # # The contents of this file are subject to the Erlang Public License, # Version 1.1, (the "License"); you may not use this file except in @@ -227,7 +227,7 @@ done PATH=$BINDIR:$ROOTDIR/bin:$PATH EXEC=$BINDIR/erlexec -PROGNAME="$PROGNAME $cargs" +PROGNAME="$PROGNAME$cargs" EMU="$EMU$TYPE" EMU_NAME=`$EXEC -emu_name_exit $eeargs` @@ -302,7 +302,7 @@ else # Set annotation level for gdb in emacs 22 and higher. emacs_major=`$EMACS --version | head -1 | sed 's,^[^0-9]*\([0-9]*\).*,\1,g'` if [ '!' -z "$emacs_major" -a $emacs_major -gt 21 ]; then - GDBARGS="--annotate=3 " + GDBARGS="--annotate=1 " fi gdbcmd="$gdbcmd $GDBBP \ (insert-string \"source $ROOTDIR/erts/etc/unix/etp-commands\") \ diff --git a/erts/etc/unix/erl.src.src b/erts/etc/unix/erl.src.src index 50603f12f4..ce5d2b5def 100644 --- a/erts/etc/unix/erl.src.src +++ b/erts/etc/unix/erl.src.src @@ -2,7 +2,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 1996-2009. All Rights Reserved. +# Copyright Ericsson AB 1996-2012. All Rights Reserved. # # The contents of this file are subject to the Erlang Public License, # Version 1.1, (the "License"); you may not use this file except in @@ -17,7 +17,7 @@ # # %CopyrightEnd% # -ROOTDIR=%FINAL_ROOTDIR% +ROOTDIR="%FINAL_ROOTDIR%" BINDIR=$ROOTDIR/erts-%VSN%/bin EMU=%EMULATOR%%EMULATOR_NUMBER% PROGNAME=`echo $0 | sed 's/.*\///'` @@ -25,4 +25,4 @@ export EMU export ROOTDIR export BINDIR export PROGNAME -exec $BINDIR/erlexec ${1+"$@"} +exec "$BINDIR/erlexec" ${1+"$@"} diff --git a/erts/etc/unix/etp-commands b/erts/etc/unix/etp-commands index 6a01e0b7e0..1c886620bb 100644 --- a/erts/etc/unix/etp-commands +++ b/erts/etc/unix/etp-commands @@ -1,7 +1,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 2005-2009. All Rights Reserved. +# Copyright Ericsson AB 2005-2012. All Rights Reserved. # # The contents of this file are subject to the Erlang Public License, # Version 1.1, (the "License"); you may not use this file except in @@ -1883,6 +1883,28 @@ document etp-ets-tables %--------------------------------------------------------------------------- end +define etp-ets-obj +# Args: DbTerm* +# + set $etp_ets_obj_i = 1 + while $etp_ets_obj_i <= (($arg0)->tpl[0] >> 6) + if $etp_ets_obj_i == 1 + printf "{" + else + printf ", " + end + set $etp_ets_elem = ($arg0)->tpl[$etp_ets_obj_i] + if ($etp_ets_elem & 3) == 0 + printf "<compressed>" + else + etp-1 $etp_ets_elem 0 + end + set $etp_ets_obj_i++ + end + printf "}" +end + + define etp-ets-tabledump # Args: int tableindex # @@ -1896,10 +1918,10 @@ define etp-ets-tabledump if $etp_ets_tabledump_t->common.status & 0x130 # Hash table set $etp_ets_tabledump_h = $etp_ets_tabledump_t->hash - printf "%% nitems=%d\n", $etp_ets_tabledump_t->common.nitems - while $etp_ets_tabledump_i < $etp_ets_tabledump_h->nactive - set $etp_ets_tabledump_l = $etp_ets_tabledump_h->seg \ - [$etp_ets_tabledump_i>>8][$etp_ets_tabledump_i&0xFF] + printf "%% nitems=%d\n", (long) $etp_ets_tabledump_t->common.nitems + while $etp_ets_tabledump_i < (long) $etp_ets_tabledump_h->nactive + set $etp_ets_tabledump_seg = ((struct segment**)$etp_ets_tabledump_h->segtab)[$etp_ets_tabledump_i>>8] + set $etp_ets_tabledump_l = $etp_ets_tabledump_seg->buckets[$etp_ets_tabledump_i&0xFF] if $etp_ets_tabledump_l printf "%% Slot %d:\n", $etp_ets_tabledump_i while $etp_ets_tabledump_l @@ -1909,7 +1931,7 @@ define etp-ets-tabledump printf "[" end set $etp_ets_tabledump_n++ - etp-1 ((Eterm)($etp_ets_tabledump_l->dbterm.tpl)|0x2) 0 + etp-ets-obj &($etp_ets_tabledump_l->dbterm) if $etp_ets_tabledump_l->hvalue == ((unsigned long)-1) printf "% *\n" else diff --git a/erts/etc/unix/run_erl.c b/erts/etc/unix/run_erl.c index 8db8e09bee..910be3dce8 100644 --- a/erts/etc/unix/run_erl.c +++ b/erts/etc/unix/run_erl.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2012. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -126,7 +126,7 @@ /* prototypes */ static void usage(char *); static int create_fifo(char *name, int perm); -static int open_pty_master(char **name); +static int open_pty_master(char **name, int *sfd); static int open_pty_slave(char *name); static void pass_on(pid_t); static void exec_shell(char **); @@ -150,6 +150,10 @@ static int write_all(int fd, const char* buf, int len); static int extract_ctrl_seq(char* buf, int len); static void set_window_size(unsigned col, unsigned row); +static ssize_t sf_write(int fd, const void *buffer, size_t len); +static ssize_t sf_read(int fd, void *buffer, size_t len); +static int sf_open(const char *path, int flags, mode_t mode); +static int sf_close(int fd); #ifdef DEBUG static void show_terminal_settings(struct termios *t); @@ -216,7 +220,7 @@ static char* outbuf_in; int main(int argc, char **argv) { int childpid; - int sfd; + int sfd = -1; int fd; char *p, *ptyslave=NULL; int i = 1; @@ -338,9 +342,9 @@ int main(int argc, char **argv) strn_cat(fifo2, sizeof(fifo2), ".w"); /* Check that nobody is running run_erl already */ - if ((fd = open (fifo2, O_WRONLY|DONT_BLOCK_PLEASE, 0)) >= 0) { + if ((fd = sf_open(fifo2, O_WRONLY|DONT_BLOCK_PLEASE, 0)) >= 0) { /* Open as client succeeded -- run_erl is already running! */ - close(fd); + sf_close(fd); if (calculated_pipename) { ++highest_pipe_num; strn_catf(pipename, sizeof(pipename), "%s.%d", @@ -361,7 +365,7 @@ int main(int argc, char **argv) * Open master pseudo-terminal */ - if ((mfd = open_pty_master(&ptyslave)) < 0) { + if ((mfd = open_pty_master(&ptyslave, &sfd)) < 0) { ERRNO_ERR0(LOG_ERR,"Could not open pty master"); exit(1); } @@ -376,7 +380,7 @@ int main(int argc, char **argv) } if (childpid == 0) { /* Child */ - close(mfd); + sf_close(mfd); /* disassociate from control terminal */ #ifdef USE_SETPGRP_NOARGS /* SysV */ setpgrp(); @@ -386,15 +390,30 @@ int main(int argc, char **argv) setsid(); #endif /* Open the slave pty */ - if ((sfd = open_pty_slave(ptyslave)) < 0) { - ERRNO_ERR1(LOG_ERR,"Could not open pty slave '%s'", ptyslave); - exit(1); + if (sfd < 0) { + /* not allocated by open_pty_master */ + if ((sfd = open_pty_slave(ptyslave)) < 0) { + ERRNO_ERR1(LOG_ERR,"Could not open pty slave '%s'", ptyslave); + exit(1); + } + /* But sfd may be one of the stdio fd's now, and we should be unmodern and not use dup2... */ + /* easiest to dup it up... */ + while (sfd < 3) { + sfd = dup(sfd); + } } - /* But sfd may be one of the stdio fd's now, and we should be unmodern and not use dup2... */ - /* easiest to dup it up... */ - while (sfd < 3) { - sfd = dup(sfd); +#if defined(HAVE_OPENPTY) && defined(TIOCSCTTY) + else { + /* sfd is from open_pty_master + * openpty -> fork -> login_tty (forkpty) + * + * It would be preferable to implement a portable + * forkpty instead of open_pty_master / open_pty_slave + */ + /* login_tty(sfd); <- FAIL */ + ioctl(sfd, TIOCSCTTY, (char *)NULL); } +#endif #ifndef NO_SYSLOG /* Before fiddling with file descriptors we make sure syslog is turned off @@ -407,14 +426,14 @@ int main(int argc, char **argv) #endif /* Close stdio */ - close(0); - close(1); - close(2); + sf_close(0); + sf_close(1); + sf_close(2); if (dup(sfd) != 0 || dup(sfd) != 1 || dup(sfd) != 2) { status("Cannot dup\n"); } - close(sfd); + sf_close(sfd); exec_shell(argv+off_argv); /* exec_shell expects argv[2] to be */ /* the command name, so we have to */ /* adjust. */ @@ -466,7 +485,7 @@ static void pass_on(pid_t childpid) * We can't open the writing side because nobody is reading and * we'd either hang or get an error. */ - if ((rfd = open(fifo2, O_RDONLY|DONT_BLOCK_PLEASE, 0)) < 0) { + if ((rfd = sf_open(fifo2, O_RDONLY|DONT_BLOCK_PLEASE, 0)) < 0) { ERRNO_ERR1(LOG_ERR,"Could not open FIFO '%s' for reading.", fifo2); exit(1); } @@ -559,7 +578,7 @@ static void pass_on(pid_t childpid) char* buf = outbuf_first(); len = outbuf_size(); - written = write(wfd, buf, len); + written = sf_write(wfd, buf, len); if (written < 0 && errno == EAGAIN) { /* * Nothing was written - this is really strange because @@ -570,7 +589,7 @@ static void pass_on(pid_t childpid) * A write error. Assume that to_erl has terminated. */ clear_outbuf(); - close(wfd); + sf_close(wfd); wfd = 0; } else { /* Delete the written part (or all) from the buffer. */ @@ -585,10 +604,10 @@ static void pass_on(pid_t childpid) #ifdef DEBUG status("Pty master read; "); #endif - if ((len = read(mfd, buf, BUFSIZ)) <= 0) { - close(rfd); - if(wfd) close(wfd); - close(mfd); + if ((len = sf_read(mfd, buf, BUFSIZ)) <= 0) { + sf_close(rfd); + if(wfd) sf_close(wfd); + sf_close(mfd); unlink(fifo1); unlink(fifo2); if (len < 0) { @@ -619,10 +638,10 @@ static void pass_on(pid_t childpid) #ifdef DEBUG status("FIFO read; "); #endif - if ((len = read(rfd, buf, BUFSIZ)) < 0) { - close(rfd); - if(wfd) close(wfd); - close(mfd); + if ((len = sf_read(rfd, buf, BUFSIZ)) < 0) { + sf_close(rfd); + if(wfd) sf_close(wfd); + sf_close(mfd); unlink(fifo1); unlink(fifo2); ERRNO_ERR0(LOG_ERR,"Error in reading from FIFO."); @@ -631,8 +650,8 @@ static void pass_on(pid_t childpid) if(!len) { /* to_erl closed its end of the pipe */ - close(rfd); - rfd = open(fifo2, O_RDONLY|DONT_BLOCK_PLEASE, 0); + sf_close(rfd); + rfd = sf_open(fifo2, O_RDONLY|DONT_BLOCK_PLEASE, 0); if (rfd < 0) { ERRNO_ERR1(LOG_ERR,"Could not open FIFO '%s' for reading.", fifo2); exit(1); @@ -645,11 +664,11 @@ static void pass_on(pid_t childpid) * from to_erl, to_erl should already be reading this pipe - open * should succeed. But in case of error, we just ignore it. */ - if ((wfd = open(fifo1, O_WRONLY|DONT_BLOCK_PLEASE, 0)) < 0) { + if ((wfd = sf_open(fifo1, O_WRONLY|DONT_BLOCK_PLEASE, 0)) < 0) { status("Client expected on FIFO %s, but can't open (len=%d)\n", fifo1, len); - close(rfd); - rfd = open(fifo2, O_RDONLY|DONT_BLOCK_PLEASE, 0); + sf_close(rfd); + rfd = sf_open(fifo2, O_RDONLY|DONT_BLOCK_PLEASE, 0); if (rfd < 0) { ERRNO_ERR1(LOG_ERR,"Could not open FIFO '%s' for reading.", fifo2); exit(1); @@ -683,9 +702,9 @@ static void pass_on(pid_t childpid) } else if (len>0 && write_all(mfd, buf, len) != len) { ERRNO_ERR0(LOG_ERR,"Error in writing to terminal."); - close(rfd); - if(wfd) close(wfd); - close(mfd); + sf_close(rfd); + if(wfd) sf_close(wfd); + sf_close(mfd); exit(1); } } @@ -797,7 +816,7 @@ static int open_log(int log_num, int flags) /* Create or continue on the current log file */ sn_printf(buf, sizeof(buf), "%s/%s%d", log_dir, LOG_STUBNAME, log_num); - if((lfd = open(buf, flags, LOG_PERM))<0){ + if((lfd = sf_open(buf, flags, LOG_PERM))<0){ ERRNO_ERR1(LOG_ERR,"Can't open log file '%s'.", buf); exit(1); } @@ -841,7 +860,7 @@ static void write_to_log(int* lfd, int* log_num, char* buf, int len) size = lseek(*lfd,0,SEEK_END); if(size+len > log_maxsize) { - close(*lfd); + sf_close(*lfd); *log_num = next_log(*log_num); *lfd = open_log(*log_num, O_RDWR|O_CREAT|O_TRUNC|O_SYNC); } @@ -872,7 +891,7 @@ static int create_fifo(char *name, int perm) * Find a master device, open and return fd and slave device name. */ -static int open_pty_master(char **ptyslave) +static int open_pty_master(char **ptyslave, int *sfdp) { int mfd; @@ -882,7 +901,9 @@ static int open_pty_master(char **ptyslave) # ifdef HAVE_WORKING_POSIX_OPENPT if ((mfd = posix_openpt(O_RDWR)) >= 0) { # elif defined(__sun) && defined(__SVR4) - if ((mfd = open("/dev/ptmx", O_RDWR)) >= 0) { + mfd = sf_open("/dev/ptmx", O_RDWR, 0); + + if (mfd >= 0) { # endif if ((*ptyslave = ptsname(mfd)) != NULL && grantpt(mfd) == 0 && @@ -890,12 +911,12 @@ static int open_pty_master(char **ptyslave) return mfd; } - close(mfd); + sf_close(mfd); } /* fallback to openpty if it exist */ #endif -#ifdef HAVE_OPENPTY +#if defined(HAVE_OPENPTY) # ifdef PATH_MAX # define SLAVE_SIZE PATH_MAX # else @@ -903,11 +924,8 @@ static int open_pty_master(char **ptyslave) # endif { static char slave[SLAVE_SIZE]; - int sfd; # undef SLAVE_SIZE - - if (openpty(&mfd, &sfd, slave, NULL, NULL) == 0) { - close(sfd); + if (openpty(&mfd, sfdp, slave, NULL, NULL) == 0) { *ptyslave = slave; return mfd; } @@ -939,7 +957,8 @@ static int open_pty_master(char **ptyslave) for (minor = minorchars; *minor; minor++) { ptyname[10] = *minor; - if ((mfd = open(ptyname, O_RDWR, 0)) >= 0) { + + if ((mfd = sf_open(ptyname, O_RDWR, 0)) >= 0) { ptyname[9] = 's'; *ptyslave = ptyname; return mfd; @@ -957,7 +976,7 @@ static int open_pty_master(char **ptyslave) ptyname[13] = *major; for (minor = minorchars; *minor; minor++) { ptyname[14] = *minor; - if ((mfd = open(ptyname, O_RDWR, 0)) >= 0) { + if ((mfd = sf_open(ptyname, O_RDWR, 0)) >= 0) { ttyname[12] = *major; ttyname[13] = *minor; *ptyslave = ttyname; @@ -976,7 +995,7 @@ static int open_pty_master(char **ptyslave) ptyname[8] = *major; for (minor = minorchars; *minor; minor++) { ptyname[9] = *minor; - if ((mfd = open(ptyname, O_RDWR, 0)) >= 0) { + if ((mfd = sf_open(ptyname, O_RDWR, 0)) >= 0) { ptyname[5] = 't'; *ptyslave = ptyname; return mfd; @@ -993,7 +1012,7 @@ static int open_pty_slave(char *name) int sfd; struct termios tty_rmode; - if ((sfd = open(name, O_RDWR, 0)) < 0) { + if ((sfd = sf_open(name, O_RDWR, 0)) < 0) { return -1; } @@ -1120,7 +1139,7 @@ static void daemon_init(void) would be backward incompatible */ for (i = 0; i < maxfd; ++i ) { - close(i); + sf_close(i); } OPEN_SYSLOG(); @@ -1246,7 +1265,7 @@ static int write_all(int fd, const char* buf, int len) int left = len; int written; for (;;) { - written = write(fd,buf,left); + written = sf_write(fd,buf,left); if (written == left) { return len; } @@ -1258,6 +1277,36 @@ static int write_all(int fd, const char* buf, int len) } } +static ssize_t sf_read(int fd, void *buffer, size_t len) { + ssize_t n = 0; + + do { n = read(fd, buffer, len); } while (n < 0 && errno == EINTR); + + return n; +} + +static ssize_t sf_write(int fd, const void *buffer, size_t len) { + ssize_t n = 0; + + do { n = write(fd, buffer, len); } while (n < 0 && errno == EINTR); + + return n; +} + +static int sf_open(const char *path, int type, mode_t mode) { + int fd = 0; + + do { fd = open(path, type, mode); } while(fd < 0 && errno == EINTR); + + return fd; +} +static int sf_close(int fd) { + int res = 0; + + do { res = close(fd); } while(fd < 0 && errno == EINTR); + + return res; +} /* Extract any control sequences that are ment only for run_erl * and should not be forwarded to the pty. */ diff --git a/erts/etc/unix/to_erl.c b/erts/etc/unix/to_erl.c index 11fa3ff4cc..754b349338 100644 --- a/erts/etc/unix/to_erl.c +++ b/erts/etc/unix/to_erl.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2011. All Rights Reserved. + * Copyright Ericsson AB 1996-2012. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -352,7 +352,10 @@ int main(int argc, char **argv) * to trigger the version handshaking between to_erl and run_erl * at the start of every new to_erl-session. */ - write(wfd, "\022", 1); + + if (write(wfd, "\022", 1) < 0) { + fprintf(stderr, "Error in writing ^R to FIFO.\n"); + } /* * read and write @@ -412,7 +415,7 @@ int main(int argc, char **argv) if (len) { #ifdef DEBUG - write(1, buf, len); + if(write(1, buf, len)); #endif if (write_all(wfd, buf, len) != len) { fprintf(stderr, "Error in writing to FIFO.\n"); |