static bool
execute_and_read_po_output (const char *progname,
const char *prog_path, char **prog_argv,
void *private_data)
{
struct locals *l = (struct locals *) private_data;
pid_t child;
int fd[1];
FILE *fp;
int exitstatus;
/* Open a pipe to the C# execution engine. */
child = create_pipe_in (progname, prog_path, prog_argv, NULL, false,
true, true, fd);
fp = fdopen (fd[0], "r");
if (fp == NULL)
error (EXIT_FAILURE, errno, _("fdopen() failed"));
/* Read the message list. */
l->mdlp = read_po (fp, "(pipe)", "(pipe)");
fclose (fp);
/* Remove zombie process from process list, and retrieve exit status. */
exitstatus = wait_subprocess (child, progname, false, false, true, true);
if (exitstatus != 0)
error (EXIT_FAILURE, 0, _("%s subprocess failed with exit code %d"),
progname, exitstatus);
return false;
}
/* Create a bi-directional pipe to a test child, and validate that the
child program returns the expected output.
PROG is the program to run in the child process.
STDERR_CLOSED is true if we have already closed fd 2. */
static void
test_pipe (const char *prog, bool stderr_closed)
{
int fd[2];
char *argv[3];
pid_t pid;
char buffer[2] = { 'a', 't' };
/* Set up child. */
argv[0] = (char *) prog;
argv[1] = (char *) (stderr_closed ? "1" : "0");
argv[2] = NULL;
pid = create_pipe_bidi (prog, prog, argv, false, true, true, fd);
ASSERT (0 <= pid);
ASSERT (STDERR_FILENO < fd[0]);
ASSERT (STDERR_FILENO < fd[1]);
/* Push child's input. */
ASSERT (write (fd[1], buffer, 1) == 1);
ASSERT (close (fd[1]) == 0);
/* Get child's output. */
ASSERT (read (fd[0], buffer, 2) == 1);
/* Wait for child. */
ASSERT (wait_subprocess (pid, prog, true, false, true, true, NULL) == 0);
ASSERT (close (fd[0]) == 0);
/* Check the result. */
ASSERT (buffer[0] == 'b');
ASSERT (buffer[1] == 't');
}
static bool
execute_and_read_line (const char *progname,
const char *prog_path, char **prog_argv,
void *private_data)
{
struct locals *l = (struct locals *) private_data;
pid_t child;
int fd[1];
FILE *fp;
char *line;
size_t linesize;
size_t linelen;
int exitstatus;
/* Open a pipe to the JVM. */
child = create_pipe_in (progname, prog_path, prog_argv, DEV_NULL, false,
true, false, fd);
if (child == -1)
return false;
/* Retrieve its result. */
fp = fdopen (fd[0], "r");
if (fp == NULL)
{
error (0, errno, _("fdopen() failed"));
return false;
}
line = NULL; linesize = 0;
linelen = getline (&line, &linesize, fp);
if (linelen == (size_t)(-1))
{
error (0, 0, _("%s subprocess I/O error"), progname);
return false;
}
if (linelen > 0 && line[linelen - 1] == '\n')
line[linelen - 1] = '\0';
fclose (fp);
/* Remove zombie process from process list, and retrieve exit status. */
exitstatus =
wait_subprocess (child, progname, true, false, true, false, NULL);
if (exitstatus != 0)
{
free (line);
return false;
}
l->line = line;
return false;
}
/* Terminate the child process. Do nothing if it already exited. */
static void
filter_terminate (struct pipe_filter_gi *filter)
{
if (!filter->exited)
{
/* Tell the child there is nothing more the parent will send. */
close (filter->fd[1]);
filter_cleanup (filter, !filter->reader_terminated);
close (filter->fd[0]);
filter->exitstatus =
wait_subprocess (filter->child, filter->progname, true,
filter->null_stderr, true, filter->exit_on_error,
NULL);
if (filter->exitstatus != 0 && filter->exit_on_error)
error (EXIT_FAILURE, 0,
_("subprocess %s terminated with exit code %d"),
filter->progname, filter->exitstatus);
filter->exited = true;
}
}
static int
compile_csharp_using_sscli (const char * const *sources,
unsigned int sources_count,
const char * const *libdirs,
unsigned int libdirs_count,
const char * const *libraries,
unsigned int libraries_count,
const char *output_file, bool output_is_library,
bool optimize, bool debug,
bool verbose)
{
static bool csc_tested;
static bool csc_present;
if (!csc_tested)
{
/* Test for presence of csc:
"csc -help >/dev/null 2>/dev/null \
&& ! { csc -help 2>/dev/null | grep -i chicken > /dev/null; }" */
char *argv[3];
pid_t child;
int fd[1];
int exitstatus;
argv[0] = "csc";
argv[1] = "-help";
argv[2] = NULL;
child = create_pipe_in ("csc", "csc", argv, DEV_NULL, true, true, false,
fd);
csc_present = false;
if (child != -1)
{
/* Read the subprocess output, and test whether it contains the
string "chicken". */
char c[7];
size_t count = 0;
csc_present = true;
while (safe_read (fd[0], &c[count], 1) > 0)
{
if (c[count] >= 'A' && c[count] <= 'Z')
c[count] += 'a' - 'A';
count++;
if (count == 7)
{
if (memcmp (c, "chicken", 7) == 0)
csc_present = false;
c[0] = c[1]; c[1] = c[2]; c[2] = c[3];
c[3] = c[4]; c[4] = c[5]; c[5] = c[6];
count--;
}
}
close (fd[0]);
/* Remove zombie process from process list, and retrieve exit
status. */
exitstatus =
wait_subprocess (child, "csc", false, true, true, false, NULL);
if (exitstatus != 0)
csc_present = false;
}
csc_tested = true;
}
if (csc_present)
{
unsigned int argc;
char **argv;
char **argp;
int exitstatus;
unsigned int i;
argc =
1 + 1 + 1 + libdirs_count + libraries_count
+ (optimize ? 1 : 0) + (debug ? 1 : 0) + sources_count;
argv = (char **) xmalloca ((argc + 1) * sizeof (char *));
argp = argv;
*argp++ = "csc";
*argp++ =
(char *) (output_is_library ? "-target:library" : "-target:exe");
{
char *option = (char *) xmalloca (5 + strlen (output_file) + 1);
memcpy (option, "-out:", 5);
strcpy (option + 5, output_file);
*argp++ = option;
}
for (i = 0; i < libdirs_count; i++)
{
char *option = (char *) xmalloca (5 + strlen (libdirs[i]) + 1);
memcpy (option, "-lib:", 5);
strcpy (option + 5, libdirs[i]);
*argp++ = option;
}
for (i = 0; i < libraries_count; i++)
{
char *option = (char *) xmalloca (11 + strlen (libraries[i]) + 4 + 1);
memcpy (option, "-reference:", 11);
memcpy (option + 11, libraries[i], strlen (libraries[i]));
strcpy (option + 11 + strlen (libraries[i]), ".dll");
*argp++ = option;
}
if (optimize)
*argp++ = "-optimize+";
if (debug)
*argp++ = "-debug+";
for (i = 0; i < sources_count; i++)
{
const char *source_file = sources[i];
if (strlen (source_file) >= 10
&& memcmp (source_file + strlen (source_file) - 10, ".resources",
10) == 0)
{
char *option = (char *) xmalloca (10 + strlen (source_file) + 1);
memcpy (option, "-resource:", 10);
strcpy (option + 10, source_file);
*argp++ = option;
}
else
*argp++ = (char *) source_file;
}
*argp = NULL;
/* Ensure argv length was correctly calculated. */
if (argp - argv != argc)
abort ();
if (verbose)
{
char *command = shell_quote_argv (argv);
printf ("%s\n", command);
free (command);
}
exitstatus = execute ("csc", "csc", argv, false, false, false, false,
true, true, NULL);
for (i = 2; i < 3 + libdirs_count + libraries_count; i++)
freea (argv[i]);
for (i = 0; i < sources_count; i++)
if (argv[argc - sources_count + i] != sources[i])
freea (argv[argc - sources_count + i]);
freea (argv);
return (exitstatus != 0);
}
else
return -1;
}
static int
compile_csharp_using_mono (const char * const *sources,
unsigned int sources_count,
const char * const *libdirs,
unsigned int libdirs_count,
const char * const *libraries,
unsigned int libraries_count,
const char *output_file, bool output_is_library,
bool optimize, bool debug,
bool verbose)
{
static bool mcs_tested;
static bool mcs_present;
if (!mcs_tested)
{
/* Test for presence of mcs:
"mcs --version >/dev/null 2>/dev/null"
and (to exclude an unrelated 'mcs' program on QNX 6)
"mcs --version 2>/dev/null | grep Mono >/dev/null" */
char *argv[3];
pid_t child;
int fd[1];
int exitstatus;
argv[0] = "mcs";
argv[1] = "--version";
argv[2] = NULL;
child = create_pipe_in ("mcs", "mcs", argv, DEV_NULL, true, true, false,
fd);
mcs_present = false;
if (child != -1)
{
/* Read the subprocess output, and test whether it contains the
string "Mono". */
char c[4];
size_t count = 0;
while (safe_read (fd[0], &c[count], 1) > 0)
{
count++;
if (count == 4)
{
if (memcmp (c, "Mono", 4) == 0)
mcs_present = true;
c[0] = c[1]; c[1] = c[2]; c[2] = c[3];
count--;
}
}
close (fd[0]);
/* Remove zombie process from process list, and retrieve exit
status. */
exitstatus =
wait_subprocess (child, "mcs", false, true, true, false, NULL);
if (exitstatus != 0)
mcs_present = false;
}
mcs_tested = true;
}
if (mcs_present)
{
unsigned int argc;
char **argv;
char **argp;
pid_t child;
int fd[1];
FILE *fp;
char *line[2];
size_t linesize[2];
size_t linelen[2];
unsigned int l;
int exitstatus;
unsigned int i;
argc =
1 + (output_is_library ? 1 : 0) + 1 + libdirs_count + libraries_count
+ (debug ? 1 : 0) + sources_count;
argv = (char **) xmalloca ((argc + 1) * sizeof (char *));
argp = argv;
*argp++ = "mcs";
if (output_is_library)
*argp++ = "-target:library";
{
char *option = (char *) xmalloca (5 + strlen (output_file) + 1);
memcpy (option, "-out:", 5);
strcpy (option + 5, output_file);
*argp++ = option;
}
for (i = 0; i < libdirs_count; i++)
{
char *option = (char *) xmalloca (5 + strlen (libdirs[i]) + 1);
memcpy (option, "-lib:", 5);
strcpy (option + 5, libdirs[i]);
*argp++ = option;
}
for (i = 0; i < libraries_count; i++)
{
char *option = (char *) xmalloca (11 + strlen (libraries[i]) + 4 + 1);
memcpy (option, "-reference:", 11);
memcpy (option + 11, libraries[i], strlen (libraries[i]));
strcpy (option + 11 + strlen (libraries[i]), ".dll");
*argp++ = option;
}
if (debug)
*argp++ = "-debug";
for (i = 0; i < sources_count; i++)
{
const char *source_file = sources[i];
if (strlen (source_file) >= 10
&& memcmp (source_file + strlen (source_file) - 10, ".resources",
10) == 0)
{
char *option = (char *) xmalloca (10 + strlen (source_file) + 1);
memcpy (option, "-resource:", 10);
strcpy (option + 10, source_file);
*argp++ = option;
}
else
*argp++ = (char *) source_file;
}
*argp = NULL;
/* Ensure argv length was correctly calculated. */
if (argp - argv != argc)
abort ();
if (verbose)
{
char *command = shell_quote_argv (argv);
printf ("%s\n", command);
free (command);
}
child = create_pipe_in ("mcs", "mcs", argv, NULL, false, true, true, fd);
/* Read the subprocess output, copying it to stderr. Drop the last
line if it starts with "Compilation succeeded". */
fp = fdopen (fd[0], "r");
if (fp == NULL)
error (EXIT_FAILURE, errno, _("fdopen() failed"));
line[0] = NULL; linesize[0] = 0;
line[1] = NULL; linesize[1] = 0;
l = 0;
for (;;)
{
linelen[l] = getline (&line[l], &linesize[l], fp);
if (linelen[l] == (size_t)(-1))
break;
l = (l + 1) % 2;
if (line[l] != NULL)
fwrite (line[l], 1, linelen[l], stderr);
}
l = (l + 1) % 2;
if (line[l] != NULL
&& !(linelen[l] >= 21
&& memcmp (line[l], "Compilation succeeded", 21) == 0))
fwrite (line[l], 1, linelen[l], stderr);
if (line[0] != NULL)
free (line[0]);
if (line[1] != NULL)
free (line[1]);
fclose (fp);
/* Remove zombie process from process list, and retrieve exit status. */
exitstatus =
wait_subprocess (child, "mcs", false, false, true, true, NULL);
for (i = 1 + (output_is_library ? 1 : 0);
i < 1 + (output_is_library ? 1 : 0)
+ 1 + libdirs_count + libraries_count;
i++)
freea (argv[i]);
for (i = 0; i < sources_count; i++)
if (argv[argc - sources_count + i] != sources[i])
freea (argv[argc - sources_count + i]);
freea (argv);
return (exitstatus != 0);
}
else
return -1;
}
int
main (int argc, char *argv[])
{
const char *child_path;
int test;
int fd[2];
int child;
int exitcode;
set_program_name (argv[0]);
child_path = argv[1];
test = atoi (argv[2]);
/* Create a pipe. */
ASSERT (pipe (fd) >= 0);
/* Map fd[0] to STDIN_FILENO and fd[1] to STDOUT_FILENO, because on Windows,
the only three file descriptors that are inherited by child processes are
STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO. */
if (fd[0] != STDIN_FILENO)
{
ASSERT (dup2 (fd[0], STDIN_FILENO) >= 0);
close (fd[0]);
}
if (fd[1] != STDOUT_FILENO)
{
ASSERT (dup2 (fd[1], STDOUT_FILENO) >= 0);
close (fd[1]);
}
/* Prepare the file descriptors. */
if (test & 1)
ASSERT (set_nonblocking_flag (STDOUT_FILENO, true) >= 0);
if (test & 2)
ASSERT (set_nonblocking_flag (STDIN_FILENO, true) >= 0);
/* Spawn the child process. */
{
const char *child_argv[3];
child_argv[0] = child_path;
child_argv[1] = argv[2];
child_argv[2] = NULL;
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
child = spawnvpe (P_NOWAIT, child_path, child_argv,
(const char **) environ);
ASSERT (child >= 0);
#else
{
pid_t child_pid;
int err =
posix_spawnp (&child_pid, child_path, NULL, NULL, (char **) child_argv,
environ);
ASSERT (err == 0);
child = child_pid;
}
#endif
}
/* Close unused file descriptors. */
close (STDIN_FILENO);
exitcode =
main_writer_loop (test, PIPE_DATA_BLOCK_SIZE, STDOUT_FILENO, false);
{
int err =
wait_subprocess (child, child_path, false, false, false, false, NULL);
ASSERT (err == 0);
}
return exitcode;
}
static void
output_skeleton (void)
{
int filter_fd[2];
pid_t pid;
/* Compute the names of the package data dir and skeleton files. */
char const *m4 = (m4 = getenv ("M4")) ? m4 : M4;
char const *datadir = pkgdatadir ();
char *m4sugar = xconcatenated_filename (datadir, "m4sugar/m4sugar.m4", NULL);
char *m4bison = xconcatenated_filename (datadir, "bison.m4", NULL);
char *skel = (IS_PATH_WITH_DIR (skeleton)
? xstrdup (skeleton)
: xconcatenated_filename (datadir, skeleton, NULL));
/* Test whether m4sugar.m4 is readable, to check for proper
installation. A faulty installation can cause deadlock, so a
cheap sanity check is worthwhile. */
xfclose (xfopen (m4sugar, "r"));
/* Create an m4 subprocess connected to us via two pipes. */
if (trace_flag & trace_tools)
fprintf (stderr, "running: %s %s - %s %s\n",
m4, m4sugar, m4bison, skel);
/* Some future version of GNU M4 (most likely 1.6) may treat the -dV in a
position-dependent manner. Keep it as the first argument so that all
files are traced.
See the thread starting at
<http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>
for details. */
{
char const *argv[10];
int i = 0;
argv[i++] = m4;
/* When POSIXLY_CORRECT is set, GNU M4 1.6 and later disable GNU
extensions, which Bison's skeletons depend on. With older M4,
it has no effect. M4 1.4.12 added a -g/--gnu command-line
option to make it explicit that a program wants GNU M4
extensions even when POSIXLY_CORRECT is set.
See the thread starting at
<http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>
for details. */
if (*M4_GNU_OPTION)
argv[i++] = M4_GNU_OPTION;
argv[i++] = "-I";
argv[i++] = datadir;
if (trace_flag & trace_m4)
argv[i++] = "-dV";
argv[i++] = m4sugar;
argv[i++] = "-";
argv[i++] = m4bison;
argv[i++] = skel;
argv[i++] = NULL;
aver (i <= ARRAY_CARDINALITY (argv));
/* The ugly cast is because gnulib gets the const-ness wrong. */
pid = create_pipe_bidi ("m4", m4, (char **)(void*)argv, false, true,
true, filter_fd);
}
free (m4sugar);
free (m4bison);
free (skel);
if (trace_flag & trace_muscles)
muscles_output (stderr);
{
FILE *out = xfdopen (filter_fd[1], "w");
muscles_output (out);
xfclose (out);
}
/* Read and process m4's output. */
timevar_push (TV_M4);
{
FILE *in = xfdopen (filter_fd[0], "r");
scan_skel (in);
/* scan_skel should have read all of M4's output. Otherwise, when we
close the pipe, we risk letting M4 report a broken-pipe to the
Bison user. */
aver (feof (in));
xfclose (in);
}
wait_subprocess (pid, "m4", false, false, true, true, NULL);
timevar_pop (TV_M4);
}
msgdomain_list_ty *
msgdomain_read_tcl (const char *locale_name, const char *directory)
{
const char *gettextdatadir;
char *tclscript;
size_t len;
char *frobbed_locale_name;
char *p;
char *file_name;
char *argv[4];
pid_t child;
int fd[1];
FILE *fp;
msgdomain_list_ty *mdlp;
int exitstatus;
size_t k;
/* Make it possible to override the msgunfmt.tcl location. This is
necessary for running the testsuite before "make install". */
gettextdatadir = getenv ("GETTEXTDATADIR");
if (gettextdatadir == NULL || gettextdatadir[0] == '\0')
gettextdatadir = relocate (GETTEXTDATADIR);
tclscript = concatenated_pathname (gettextdatadir, "msgunfmt.tcl", NULL);
/* Convert the locale name to lowercase and remove any encoding. */
len = strlen (locale_name);
frobbed_locale_name = (char *) xallocsa (len + 1);
memcpy (frobbed_locale_name, locale_name, len + 1);
for (p = frobbed_locale_name; *p != '\0'; p++)
if (*p >= 'A' && *p <= 'Z')
*p = *p - 'A' + 'a';
else if (*p == '.')
{
*p = '\0';
break;
}
file_name = concatenated_pathname (directory, frobbed_locale_name, ".msg");
freesa (frobbed_locale_name);
/* Prepare arguments. */
argv[0] = "tclsh";
argv[1] = tclscript;
argv[2] = file_name;
argv[3] = NULL;
if (verbose)
{
char *command = shell_quote_argv (argv);
printf ("%s\n", command);
free (command);
}
/* Open a pipe to the Tcl interpreter. */
child = create_pipe_in ("tclsh", "tclsh", argv, DEV_NULL, false, true, true,
fd);
fp = fdopen (fd[0], "r");
if (fp == NULL)
error (EXIT_FAILURE, errno, _("fdopen() failed"));
/* Read the message list. */
mdlp = read_catalog_stream (fp, "(pipe)", "(pipe)", &input_format_po);
fclose (fp);
/* Remove zombie process from process list, and retrieve exit status. */
exitstatus = wait_subprocess (child, "tclsh", false, false, true, true);
if (exitstatus != 0)
{
if (exitstatus == 2)
/* Special exitcode provided by msgunfmt.tcl. */
error (EXIT_FAILURE, ENOENT,
_("error while opening \"%s\" for reading"), file_name);
else
error (EXIT_FAILURE, 0, _("%s subprocess failed with exit code %d"),
"tclsh", exitstatus);
}
free (tclscript);
/* Move the header entry to the beginning. */
for (k = 0; k < mdlp->nitems; k++)
{
message_list_ty *mlp = mdlp->item[k]->messages;
size_t j;
for (j = 0; j < mlp->nitems; j++)
if (is_header (mlp->item[j]))
{
/* Found the header entry. */
if (j > 0)
{
message_ty *header = mlp->item[j];
size_t i;
for (i = j; i > 0; i--)
mlp->item[i] = mlp->item[i - 1];
mlp->item[0] = header;
}
break;
}
}
return mdlp;
}
int
main (int argc, char *argv[])
{
const char *child_path = argv[1];
int test = atoi (argv[2]);
int server;
int port;
int child;
int server_socket;
int exitcode;
/* Create a server socket. */
server = create_server (0, 1, &port);
/* Spawn the child process. */
{
char port_arg[10+1];
const char *child_argv[4];
sprintf (port_arg, "%u", port);
child_argv[0] = child_path;
child_argv[1] = argv[2];
child_argv[2] = port_arg;
child_argv[3] = NULL;
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
child = spawnvpe (P_NOWAIT, child_path, child_argv,
(const char **) environ);
ASSERT (child >= 0);
#else
{
pid_t child_pid;
int err =
posix_spawnp (&child_pid, child_path, NULL, NULL, (char **) child_argv,
environ);
ASSERT (err == 0);
child = child_pid;
}
#endif
}
/* Accept a connection from the child process. */
server_socket = create_server_socket (server);
/* Prepare the file descriptor. */
if (test & 1)
ASSERT (set_nonblocking_flag (server_socket, true) >= 0);
#if ENABLE_DEBUGGING
# ifdef SO_SNDBUF
{
int value;
socklen_t value_len = sizeof (value);
if (getsockopt (server_socket, SOL_SOCKET, SO_SNDBUF, &value, &value_len) >= 0)
fprintf (stderr, "SO_SNDBUF = %d\n", value);
}
# endif
# ifdef SO_RCVBUF
{
int value;
socklen_t value_len = sizeof (value);
if (getsockopt (server_socket, SOL_SOCKET, SO_RCVBUF, &value, &value_len) >= 0)
fprintf (stderr, "SO_RCVBUF = %d\n", value);
}
# endif
#endif
exitcode =
main_writer_loop (test, SOCKET_DATA_BLOCK_SIZE, server_socket,
SOCKET_HAS_LARGE_BUFFER);
{
int err =
wait_subprocess (child, child_path, false, false, false, false, NULL);
ASSERT (err == 0);
}
return exitcode;
}
/* Execute a command, optionally redirecting any of the three standard file
descriptors to /dev/null. Return its exit code.
If it didn't terminate correctly, exit if exit_on_error is true, otherwise
return 127.
If slave_process is true, the child process will be terminated when its
creator receives a catchable fatal signal. */
int
execute (const char *progname,
const char *prog_path, char **prog_argv,
bool ignore_sigpipe,
bool null_stdin, bool null_stdout, bool null_stderr,
bool slave_process, bool exit_on_error,
int *termsigp)
{
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
/* Native Windows API. */
int orig_stdin;
int orig_stdout;
int orig_stderr;
int exitcode;
int nullinfd;
int nulloutfd;
/* FIXME: Need to free memory allocated by prepare_spawn. */
prog_argv = prepare_spawn (prog_argv);
/* Save standard file handles of parent process. */
if (null_stdin)
orig_stdin = dup_safer_noinherit (STDIN_FILENO);
if (null_stdout)
orig_stdout = dup_safer_noinherit (STDOUT_FILENO);
if (null_stderr)
orig_stderr = dup_safer_noinherit (STDERR_FILENO);
exitcode = -1;
/* Create standard file handles of child process. */
nullinfd = -1;
nulloutfd = -1;
if ((!null_stdin
|| ((nullinfd = open ("NUL", O_RDONLY, 0)) >= 0
&& (nullinfd == STDIN_FILENO
|| (dup2 (nullinfd, STDIN_FILENO) >= 0
&& close (nullinfd) >= 0))))
&& (!(null_stdout || null_stderr)
|| ((nulloutfd = open ("NUL", O_RDWR, 0)) >= 0
&& (!null_stdout
|| nulloutfd == STDOUT_FILENO
|| dup2 (nulloutfd, STDOUT_FILENO) >= 0)
&& (!null_stderr
|| nulloutfd == STDERR_FILENO
|| dup2 (nulloutfd, STDERR_FILENO) >= 0)
&& ((null_stdout && nulloutfd == STDOUT_FILENO)
|| (null_stderr && nulloutfd == STDERR_FILENO)
|| close (nulloutfd) >= 0))))
/* Use spawnvpe and pass the environment explicitly. This is needed if
the program has modified the environment using putenv() or [un]setenv().
On Windows, programs have two environments, one in the "environment
block" of the process and managed through SetEnvironmentVariable(), and
one inside the process, in the location retrieved by the 'environ'
macro. When using spawnvp() without 'e', the child process inherits a
copy of the environment block - ignoring the effects of putenv() and
[un]setenv(). */
{
exitcode = spawnvpe (P_WAIT, prog_path, (const char **) prog_argv,
(const char **) environ);
if (exitcode < 0 && errno == ENOEXEC)
{
/* prog is not a native executable. Try to execute it as a
shell script. Note that prepare_spawn() has already prepended
a hidden element "sh.exe" to prog_argv. */
--prog_argv;
exitcode = spawnvpe (P_WAIT, prog_argv[0], (const char **) prog_argv,
(const char **) environ);
}
}
if (nulloutfd >= 0)
close (nulloutfd);
if (nullinfd >= 0)
close (nullinfd);
/* Restore standard file handles of parent process. */
if (null_stderr)
undup_safer_noinherit (orig_stderr, STDERR_FILENO);
if (null_stdout)
undup_safer_noinherit (orig_stdout, STDOUT_FILENO);
if (null_stdin)
undup_safer_noinherit (orig_stdin, STDIN_FILENO);
if (termsigp != NULL)
*termsigp = 0;
if (exitcode == -1)
{
if (exit_on_error || !null_stderr)
error (exit_on_error ? EXIT_FAILURE : 0, errno,
_("%s subprocess failed"), progname);
return 127;
}
return exitcode;
#else
/* Unix API. */
/* Note about 127: Some errors during posix_spawnp() cause the function
posix_spawnp() to return an error code; some other errors cause the
subprocess to exit with return code 127. It is implementation
dependent which error is reported which way. We treat both cases as
equivalent. */
sigset_t blocked_signals;
posix_spawn_file_actions_t actions;
bool actions_allocated;
posix_spawnattr_t attrs;
bool attrs_allocated;
int err;
pid_t child;
if (slave_process)
{
sigprocmask (SIG_SETMASK, NULL, &blocked_signals);
block_fatal_signals ();
}
actions_allocated = false;
attrs_allocated = false;
if ((err = posix_spawn_file_actions_init (&actions)) != 0
|| (actions_allocated = true,
(null_stdin
&& (err = posix_spawn_file_actions_addopen (&actions,
STDIN_FILENO,
"/dev/null", O_RDONLY,
0))
!= 0)
|| (null_stdout
&& (err = posix_spawn_file_actions_addopen (&actions,
STDOUT_FILENO,
"/dev/null", O_RDWR,
0))
!= 0)
|| (null_stderr
&& (err = posix_spawn_file_actions_addopen (&actions,
STDERR_FILENO,
"/dev/null", O_RDWR,
0))
!= 0)
|| (slave_process
&& ((err = posix_spawnattr_init (&attrs)) != 0
|| (attrs_allocated = true,
(err = posix_spawnattr_setsigmask (&attrs,
&blocked_signals))
!= 0
|| (err = posix_spawnattr_setflags (&attrs,
POSIX_SPAWN_SETSIGMASK))
!= 0)))
|| (err = posix_spawnp (&child, prog_path, &actions,
attrs_allocated ? &attrs : NULL, prog_argv,
environ))
!= 0))
{
if (actions_allocated)
posix_spawn_file_actions_destroy (&actions);
if (attrs_allocated)
posix_spawnattr_destroy (&attrs);
if (slave_process)
unblock_fatal_signals ();
if (termsigp != NULL)
*termsigp = 0;
if (exit_on_error || !null_stderr)
error (exit_on_error ? EXIT_FAILURE : 0, err,
_("%s subprocess failed"), progname);
return 127;
}
posix_spawn_file_actions_destroy (&actions);
if (attrs_allocated)
posix_spawnattr_destroy (&attrs);
if (slave_process)
{
register_slave_subprocess (child);
unblock_fatal_signals ();
}
return wait_subprocess (child, progname, ignore_sigpipe, null_stderr,
slave_process, exit_on_error, termsigp);
#endif
}
/* Execute a command, optionally redirecting any of the three standard file
descriptors to /dev/null. Return its exit code.
If it didn't terminate correctly, exit if exit_on_error is true, otherwise
return 127.
If slave_process is true, the child process will be terminated when its
creator receives a catchable fatal signal. */
int
execute (const char *progname,
const char *prog_path, char **prog_argv,
bool ignore_sigpipe,
bool null_stdin, bool null_stdout, bool null_stderr,
bool slave_process, bool exit_on_error)
{
#if defined _MSC_VER || defined __MINGW32__
/* Native Woe32 API. */
int orig_stdin;
int orig_stdout;
int orig_stderr;
int exitcode;
int nullinfd;
int nulloutfd;
prog_argv = prepare_spawn (prog_argv);
/* Save standard file handles of parent process. */
if (null_stdin)
orig_stdin = dup_noinherit (STDIN_FILENO);
if (null_stdout)
orig_stdout = dup_noinherit (STDOUT_FILENO);
if (null_stderr)
orig_stderr = dup_noinherit (STDERR_FILENO);
exitcode = -1;
/* Create standard file handles of child process. */
nullinfd = -1;
nulloutfd = -1;
if ((!null_stdin
|| ((nullinfd = open ("NUL", O_RDONLY, 0)) >= 0
&& (nullinfd == STDIN_FILENO
|| (dup2 (nullinfd, STDIN_FILENO) >= 0
&& close (nullinfd) >= 0))))
&& (!(null_stdout || null_stderr)
|| ((nulloutfd = open ("NUL", O_RDWR, 0)) >= 0
&& (!null_stdout
|| nulloutfd == STDOUT_FILENO
|| dup2 (nulloutfd, STDOUT_FILENO) >= 0)
&& (!null_stderr
|| nulloutfd == STDERR_FILENO
|| dup2 (nulloutfd, STDERR_FILENO) >= 0)
&& ((null_stdout && nulloutfd == STDOUT_FILENO)
|| (null_stderr && nulloutfd == STDERR_FILENO)
|| close (nulloutfd) >= 0))))
exitcode = spawnvp (P_WAIT, prog_path, prog_argv);
if (nulloutfd >= 0)
close (nulloutfd);
if (nullinfd >= 0)
close (nullinfd);
/* Restore standard file handles of parent process. */
if (null_stderr)
dup2 (orig_stderr, STDERR_FILENO), close (orig_stderr);
if (null_stdout)
dup2 (orig_stdout, STDOUT_FILENO), close (orig_stdout);
if (null_stdin)
dup2 (orig_stdin, STDIN_FILENO), close (orig_stdin);
if (exitcode == -1)
{
if (exit_on_error || !null_stderr)
error (exit_on_error ? EXIT_FAILURE : 0, errno,
_("%s subprocess failed"), progname);
return 127;
}
return exitcode;
#else
/* Unix API. */
/* Note about 127: Some errors during posix_spawnp() cause the function
posix_spawnp() to return an error code; some other errors cause the
subprocess to exit with return code 127. It is implementation
dependent which error is reported which way. We treat both cases as
equivalent. */
#if HAVE_POSIX_SPAWN
sigset_t blocked_signals;
posix_spawn_file_actions_t actions;
bool actions_allocated;
posix_spawnattr_t attrs;
bool attrs_allocated;
int err;
pid_t child;
#else
int child;
#endif
#if HAVE_POSIX_SPAWN
if (slave_process)
{
sigprocmask (SIG_SETMASK, NULL, &blocked_signals);
block_fatal_signals ();
}
actions_allocated = false;
attrs_allocated = false;
if ((err = posix_spawn_file_actions_init (&actions)) != 0
|| (actions_allocated = true,
(null_stdin
&& (err = posix_spawn_file_actions_addopen (&actions,
STDIN_FILENO,
"/dev/null", O_RDONLY,
0))
!= 0)
|| (null_stdout
&& (err = posix_spawn_file_actions_addopen (&actions,
STDOUT_FILENO,
"/dev/null", O_RDWR,
0))
!= 0)
|| (null_stderr
&& (err = posix_spawn_file_actions_addopen (&actions,
STDERR_FILENO,
"/dev/null", O_RDWR,
0))
!= 0)
|| (slave_process
&& ((err = posix_spawnattr_init (&attrs)) != 0
|| (attrs_allocated = true,
(err = posix_spawnattr_setsigmask (&attrs,
&blocked_signals))
!= 0
|| (err = posix_spawnattr_setflags (&attrs,
POSIX_SPAWN_SETSIGMASK))
!= 0)))
|| (err = posix_spawnp (&child, prog_path, &actions,
attrs_allocated ? &attrs : NULL, prog_argv,
environ))
!= 0))
{
if (actions_allocated)
posix_spawn_file_actions_destroy (&actions);
if (attrs_allocated)
posix_spawnattr_destroy (&attrs);
if (slave_process)
unblock_fatal_signals ();
if (exit_on_error || !null_stderr)
error (exit_on_error ? EXIT_FAILURE : 0, err,
_("%s subprocess failed"), progname);
return 127;
}
posix_spawn_file_actions_destroy (&actions);
if (attrs_allocated)
posix_spawnattr_destroy (&attrs);
#else
if (slave_process)
block_fatal_signals ();
/* Use vfork() instead of fork() for efficiency. */
if ((child = vfork ()) == 0)
{
/* Child process code. */
int nullinfd;
int nulloutfd;
if ((!null_stdin
|| ((nullinfd = open ("/dev/null", O_RDONLY, 0)) >= 0
&& (nullinfd == STDIN_FILENO
|| (dup2 (nullinfd, STDIN_FILENO) >= 0
&& close (nullinfd) >= 0))))
&& (!(null_stdout || null_stderr)
|| ((nulloutfd = open ("/dev/null", O_RDWR, 0)) >= 0
&& (!null_stdout
|| nulloutfd == STDOUT_FILENO
|| dup2 (nulloutfd, STDOUT_FILENO) >= 0)
&& (!null_stderr
|| nulloutfd == STDERR_FILENO
|| dup2 (nulloutfd, STDERR_FILENO) >= 0)
&& ((null_stdout && nulloutfd == STDOUT_FILENO)
|| (null_stderr && nulloutfd == STDERR_FILENO)
|| close (nulloutfd) >= 0)))
&& (!slave_process || (unblock_fatal_signals (), true)))
execvp (prog_path, prog_argv);
_exit (127);
}
if (child == -1)
{
if (slave_process)
unblock_fatal_signals ();
if (exit_on_error || !null_stderr)
error (exit_on_error ? EXIT_FAILURE : 0, errno,
_("%s subprocess failed"), progname);
return 127;
}
#endif
if (slave_process)
{
register_slave_subprocess (child);
unblock_fatal_signals ();
}
return wait_subprocess (child, progname, ignore_sigpipe, null_stderr,
slave_process, exit_on_error);
#endif
}
static int
compile_csharp_using_mono (const char * const *sources,
unsigned int sources_count,
const char * const *libdirs,
unsigned int libdirs_count,
const char * const *libraries,
unsigned int libraries_count,
const char *output_file, bool output_is_library,
bool optimize, bool debug,
bool verbose)
{
static bool mcs_tested;
static bool mcs_present;
if (!mcs_tested)
{
/* Test for presence of mcs:
"mcs --version >/dev/null 2>/dev/null" */
char *argv[3];
int exitstatus;
argv[0] = "mcs";
argv[1] = "--version";
argv[2] = NULL;
exitstatus = execute ("mcs", "mcs", argv, false, false, true, true, true,
false);
mcs_present = (exitstatus == 0);
mcs_tested = true;
}
if (mcs_present)
{
unsigned int argc;
char **argv;
char **argp;
pid_t child;
int fd[1];
FILE *fp;
char *line[2];
size_t linesize[2];
size_t linelen[2];
unsigned int l;
int exitstatus;
unsigned int i;
argc =
1 + (output_is_library ? 1 : 0) + 2 + 2 * libdirs_count
+ 2 * libraries_count + (debug ? 1 : 0) + sources_count;
argv = (char **) xallocsa ((argc + 1) * sizeof (char *));
argp = argv;
*argp++ = "mcs";
if (output_is_library)
*argp++ = "-target:library";
*argp++ = "-o";
*argp++ = (char *) output_file;
for (i = 0; i < libdirs_count; i++)
{
*argp++ = "-L";
*argp++ = (char *) libdirs[i];
}
for (i = 0; i < libraries_count; i++)
{
*argp++ = "-r";
*argp++ = (char *) libraries[i];
}
if (debug)
*argp++ = "-g";
for (i = 0; i < sources_count; i++)
{
const char *source_file = sources[i];
if (strlen (source_file) >= 9
&& memcmp (source_file + strlen (source_file) - 9, ".resource",
9) == 0)
{
char *option = (char *) xallocsa (10 + strlen (source_file) + 1);
memcpy (option, "-resource:", 10);
strcpy (option + 10, source_file);
*argp++ = option;
}
else
*argp++ = (char *) source_file;
}
*argp = NULL;
/* Ensure argv length was correctly calculated. */
if (argp - argv != argc)
abort ();
if (verbose)
{
char *command = shell_quote_argv (argv);
printf ("%s\n", command);
free (command);
}
child = create_pipe_in ("mcs", "mcs", argv, NULL, false, true, true, fd);
/* Read the subprocess output, copying it to stderr. Drop the last
line if it starts with "Compilation succeeded". */
fp = fdopen (fd[0], "r");
if (fp == NULL)
error (EXIT_FAILURE, errno, _("fdopen() failed"));
line[0] = NULL; linesize[0] = 0;
line[1] = NULL; linesize[1] = 0;
l = 0;
for (;;)
{
linelen[l] = getline (&line[l], &linesize[l], fp);
if (linelen[l] == (size_t)(-1))
break;
l = (l + 1) % 2;
if (line[l] != NULL)
fwrite (line[l], 1, linelen[l], stderr);
}
l = (l + 1) % 2;
if (line[l] != NULL
&& !(linelen[l] >= 21
&& memcmp (line[l], "Compilation succeeded", 21) == 0))
fwrite (line[l], 1, linelen[l], stderr);
if (line[0] != NULL)
free (line[0]);
if (line[1] != NULL)
free (line[1]);
fclose (fp);
/* Remove zombie process from process list, and retrieve exit status. */
exitstatus = wait_subprocess (child, "mcs", false, false, true, true);
for (i = 0; i < sources_count; i++)
if (argv[argc - sources_count + i] != sources[i])
freesa (argv[argc - sources_count + i]);
freesa (argv);
return (exitstatus != 0);
}
else
return -1;
}
