Split posix_spawn.c into 3 different files

newlib/libc/posix/posix_spawn_file_actions.c

+/*-
+ * Copyright (c) 2008 Ed Schouten <ed@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _NO_POSIX_SPAWN
+
+#include <sys/cdefs.h>
+
+#include <errno.h>
+#include <spawn.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * File descriptor actions
+ */
+
+int
+_DEFUN(posix_spawn_file_actions_init, (ret),
+        posix_spawn_file_actions_t *ret)
+{
+        posix_spawn_file_actions_t* fa;
+
+        fa = malloc(sizeof(posix_spawn_file_actions_t));
+        if (fa == NULL)
+                return (-1);
+
+        STAILQ_INIT(&fa->fa_list);
+        ret = fa;
+        return (0);
+}
+
+int
+_DEFUN(posix_spawn_file_actions_destroy, (fa),
+        posix_spawn_file_actions_t *fa)
+{
+        posix_spawn_file_actions_entry_t *fae;
+
+        while ((fae = STAILQ_FIRST(&fa->fa_list)) != NULL) {
+                /* Remove file action entry from the queue */
+                STAILQ_REMOVE_HEAD(&fa->fa_list, fae_list);
+
+                /* Deallocate file action entry */
+                if (fae->fae_action == FAE_OPEN)
+                        free(fae->fae_path);
+                free(fae);
+        }
+
+        free(fa);
+        return (0);
+}
+
+int
+_DEFUN(posix_spawn_file_actions_addopen, (fa, fildes, path, oflag, mode),
+        posix_spawn_file_actions_t * __restrict fa _AND
+        int fildes _AND
+        _CONST char * __restrict path _AND
+        int oflag _AND
+        mode_t mode)
+{
+        posix_spawn_file_actions_entry_t *fae;
+        int error;
+
+        if (fildes < 0)
+                return (EBADF);
+
+        /* Allocate object */
+        fae = malloc(sizeof(posix_spawn_file_actions_entry_t));
+        if (fae == NULL)
+                return (errno);
+
+        /* Set values and store in queue */
+        fae->fae_action = FAE_OPEN;
+        fae->fae_path = strdup(path);
+        if (fae->fae_path == NULL) {
+                error = errno;
+                free(fae);
+                return (error);
+        }
+        fae->fae_fildes = fildes;
+        fae->fae_oflag = oflag;
+        fae->fae_mode = mode;
+
+        STAILQ_INSERT_TAIL(&fa->fa_list, fae, fae_list);
+        return (0);
+}
+
+int
+_DEFUN(posix_spawn_file_actions_adddup2, (fa, fildes, newfildes),
+        posix_spawn_file_actions_t *fa _AND
+        int fildes _AND
+        int newfildes)
+{
+        posix_spawn_file_actions_entry_t *fae;
+
+        if (fildes < 0 || newfildes < 0)
+                return (EBADF);
+
+        /* Allocate object */
+        fae = malloc(sizeof(posix_spawn_file_actions_entry_t));
+        if (fae == NULL)
+                return (errno);
+
+        /* Set values and store in queue */
+        fae->fae_action = FAE_DUP2;
+        fae->fae_fildes = fildes;
+        fae->fae_newfildes = newfildes;
+
+        STAILQ_INSERT_TAIL(&fa->fa_list, fae, fae_list);
+        return (0);
+}
+
+int
+_DEFUN(posix_spawn_file_actions_addclose, (fa, fildes),
+        posix_spawn_file_actions_t *fa _AND
+        int fildes)
+{
+        posix_spawn_file_actions_entry_t *fae;
+
+        if (fildes < 0)
+                return (EBADF);
+
+        /* Allocate object */
+        fae = malloc(sizeof(posix_spawn_file_actions_entry_t));
+        if (fae == NULL)
+                return (errno);
+
+        /* Set values and store in queue */
+        fae->fae_action = FAE_CLOSE;
+        fae->fae_fildes = fildes;
+
+        STAILQ_INSERT_TAIL(&fa->fa_list, fae, fae_list);
+        return (0);
+}
+
+#endif  /* !_NO_POSIX_SPAWN */