/* Utilities to execute a program in a subprocess (possibly linked by pipes
with other subprocesses), and wait for it. DJGPP specialization.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2005
- Free Software Foundation, Inc.
+ Copyright (C) 1996-2019 Free Software Foundation, Inc.
This file is part of the libiberty library.
Libiberty is free software; you can redistribute it and/or
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/stat.h>
#include <process.h>
/* Use ECHILD if available, otherwise use EINVAL. */
#endif
static int pex_djgpp_open_read (struct pex_obj *, const char *, int);
-static int pex_djgpp_open_write (struct pex_obj *, const char *, int);
-static long pex_djgpp_exec_child (struct pex_obj *, int, const char *,
- char * const *, int, int, int,
+static int pex_djgpp_open_write (struct pex_obj *, const char *, int, int);
+static pid_t pex_djgpp_exec_child (struct pex_obj *, int, const char *,
+ char * const *, char * const *,
+ int, int, int, int,
const char **, int *);
static int pex_djgpp_close (struct pex_obj *, int);
-static int pex_djgpp_wait (struct pex_obj *, long, int *, struct pex_time *,
+static pid_t pex_djgpp_wait (struct pex_obj *, pid_t, int *, struct pex_time *,
int, const char **, int *);
/* The list of functions we pass to the common routines. */
pex_djgpp_wait,
NULL, /* pipe */
NULL, /* fdopenr */
+ NULL, /* fdopenw */
NULL /* cleanup */
};
{
/* DJGPP does not support pipes. */
flags &= ~ PEX_USE_PIPES;
- return pex_init_common (flags, pname, tempbase, funcs);
+ return pex_init_common (flags, pname, tempbase, &funcs);
}
/* Open a file for reading. */
static int
pex_djgpp_open_write (struct pex_obj *obj ATTRIBUTE_UNUSED,
- const char *name, int binary)
+ const char *name, int binary, int append)
{
/* Note that we can't use O_EXCL here because gcc may have already
created the temporary file via make_temp_file. */
+ if (append)
+ return -1;
return open (name,
(O_WRONLY | O_CREAT | O_TRUNC
| (binary ? O_BINARY : O_TEXT)),
/* Execute a child. */
-static long
+static pid_t
pex_djgpp_exec_child (struct pex_obj *obj, int flags, const char *executable,
- char * const * argv, int in, int out, int errdes,
- const char **errmsg, int *err)
+ char * const * argv, char * const * env,
+ int in, int out, int errdes,
+ int toclose ATTRIBUTE_UNUSED, const char **errmsg,
+ int *err)
{
int org_in, org_out, org_errdes;
int status;
if (in != STDIN_FILE_NO)
{
- org_in = _dup (STDIN_FILE_NO);
+ org_in = dup (STDIN_FILE_NO);
if (org_in < 0)
{
*err = errno;
- *errmsg = "_dup";
- return -1;
+ *errmsg = "dup";
+ return (pid_t) -1;
}
- if (_dup2 (in, STDIN_FILE_NO) < 0)
+ if (dup2 (in, STDIN_FILE_NO) < 0)
{
*err = errno;
- *errmsg = "_dup2";
- return -1;
+ *errmsg = "dup2";
+ return (pid_t) -1;
}
- if (_close (in) < 0)
+ if (close (in) < 0)
{
*err = errno;
- *errmsg = "_close";
- return -1;
+ *errmsg = "close";
+ return (pid_t) -1;
}
}
if (out != STDOUT_FILE_NO)
{
- org_out = _dup (STDOUT_FILE_NO);
+ org_out = dup (STDOUT_FILE_NO);
if (org_out < 0)
{
*err = errno;
- *errmsg = "_dup";
- return -1;
+ *errmsg = "dup";
+ return (pid_t) -1;
}
- if (_dup2 (out, STDOUT_FILE_NO) < 0)
+ if (dup2 (out, STDOUT_FILE_NO) < 0)
{
*err = errno;
- *errmsg = "_dup2";
- return -1;
+ *errmsg = "dup2";
+ return (pid_t) -1;
}
- if (_close (out) < 0)
+ if (close (out) < 0)
{
*err = errno;
- *errmsg = "_close";
- return -1;
+ *errmsg = "close";
+ return (pid_t) -1;
}
}
if (errdes != STDERR_FILE_NO
|| (flags & PEX_STDERR_TO_STDOUT) != 0)
{
- int e;
-
- org_errdes = _dup (STDERR_FILE_NO);
+ org_errdes = dup (STDERR_FILE_NO);
if (org_errdes < 0)
{
*err = errno;
- *errmsg = "_dup";
- return -1;
+ *errmsg = "dup";
+ return (pid_t) -1;
}
- if (_dup2 ((flags & PEX_STDERR_TO_STDOUT) != 0 ? STDOUT_FILE_NO : errdes,
+ if (dup2 ((flags & PEX_STDERR_TO_STDOUT) != 0 ? STDOUT_FILE_NO : errdes,
STDERR_FILE_NO) < 0)
{
*err = errno;
- *errmsg = "_dup2";
- return -1;
+ *errmsg = "dup2";
+ return (pid_t) -1;
}
if (errdes != STDERR_FILE_NO)
{
- if (_close (errdes) < 0)
+ if (close (errdes) < 0)
{
*err = errno;
- *errmsg = "_close";
- return -1;
+ *errmsg = "close";
+ return (pid_t) -1;
}
}
}
- status = (((flags & PEX_SEARCH) != 0 ? _spawnvp : _spawnv)
- (P_WAIT, program, (const char **) argv));
+ if (env)
+ status = (((flags & PEX_SEARCH) != 0 ? spawnvpe : spawnve)
+ (P_WAIT, executable, argv, env));
+ else
+ status = (((flags & PEX_SEARCH) != 0 ? spawnvp : spawnv)
+ (P_WAIT, executable, argv));
if (status == -1)
{
*err = errno;
- *errmsg = ((flags & PEX_SEARCH) != 0) ? "_spawnvp" : "_spawnv";
+ *errmsg = ((flags & PEX_SEARCH) != 0) ? "spawnvp" : "spawnv";
}
if (in != STDIN_FILE_NO)
{
- if (_dup2 (org_in, STDIN_FILE_NO) < 0)
+ if (dup2 (org_in, STDIN_FILE_NO) < 0)
{
*err = errno;
- *errmsg = "_dup2";
- return -1;
+ *errmsg = "dup2";
+ return (pid_t) -1;
}
- if (_close (org_in) < 0)
+ if (close (org_in) < 0)
{
*err = errno;
- *errmsg = "_close";
- return -1;
+ *errmsg = "close";
+ return (pid_t) -1;
}
}
if (out != STDOUT_FILE_NO)
{
- if (_dup2 (org_out, STDOUT_FILE_NO) < 0)
+ if (dup2 (org_out, STDOUT_FILE_NO) < 0)
{
*err = errno;
- *errmsg = "_dup2";
- return -1;
+ *errmsg = "dup2";
+ return (pid_t) -1;
}
- if (_close (org_out) < 0)
+ if (close (org_out) < 0)
{
*err = errno;
- *errmsg = "_close";
- return -1;
+ *errmsg = "close";
+ return (pid_t) -1;
}
}
if (errdes != STDERR_FILE_NO
|| (flags & PEX_STDERR_TO_STDOUT) != 0)
{
- if (_dup2 (org_errdes, STDERR_FILE_NO) < 0)
+ if (dup2 (org_errdes, STDERR_FILE_NO) < 0)
{
*err = errno;
- *errmsg = "_dup2";
- return -1;
+ *errmsg = "dup2";
+ return (pid_t) -1;
}
- if (_close (org_errdes) < 0)
+ if (close (org_errdes) < 0)
{
*err = errno;
- *errmsg = "_close";
- return -1;
+ *errmsg = "close";
+ return (pid_t) -1;
}
}
is the number of children which have executed before this
one. */
statuses = (int *) obj->sysdep;
- statuses = xrealloc (statuses, (obj->count + 1) * sizeof (int));
+ statuses = XRESIZEVEC (int, statuses, obj->count + 1);
statuses[obj->count] = status;
obj->sysdep = (void *) statuses;
- return obj->count;
+ return (pid_t) obj->count;
}
/* Wait for a child process to complete. Actually the child process
has already completed, and we just need to return the exit
status. */
-static int
-pex_djgpp_wait (struct pex_obj *obj, long pid, int *status,
- struct pex_time *time, int done, const char **errmsg,
- int *err)
+static pid_t
+pex_djgpp_wait (struct pex_obj *obj, pid_t pid, int *status,
+ struct pex_time *time, int done ATTRIBUTE_UNUSED,
+ const char **errmsg ATTRIBUTE_UNUSED,
+ int *err ATTRIBUTE_UNUSED)
{
int *statuses;