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/* ====================================================================
* Copyright (c) 1999 The Apache Group. 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.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* 4. The names "Apache Server" and "Apache Group" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Apache Group
* for use in the Apache HTTP server project (http://www.apache.org/)."
*
* THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
* EXPRESSED 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 APACHE GROUP OR
* ITS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Group.
* For more information on the Apache Group and the Apache HTTP server
* project, please see <http://www.apache.org/>.
*
*/
#include "fileio.h"
static ap_status_t pipenonblock(struct file_t *thefile)
{
#ifndef BEOS /* this code won't work on BeOS */
int fd_flags = fcntl(thefile->filedes, F_GETFL, 0);
#if defined(O_NONBLOCK)
fd_flags |= O_NONBLOCK;
#elif defined(O_NDELAY)
fd_flags |= O_NDELAY;
#elif defined(FNDELAY)
fd_flags |= O_FNDELAY;
#else */
/* XXXX: this breaks things, but an alternative isn't obvious...*/
return -1;
#endif
if (fcntl(thefile->filedes, F_SETFL, fd_flags) == -1) {
return errno;
}
#endif /* !BeOS */
return APR_SUCCESS;
}
/* ***APRDOC********************************************************
* ap_status_t ap_set_pipe_timeout(ap_file_t *, ap_int32_t)
* Set the timeout value for a pipe.
* arg 1) The pipe we are setting a timeout on.
* arg 3) The timeout value in seconds. Values < 0 mean wait forever, 0
* means do not wait at all.
*/
ap_status_t ap_set_pipe_timeout(struct file_t *thepipe, ap_int32_t timeout)
{
if (thepipe->pipe == 1) {
thepipe->timeout = timeout;
return APR_SUCCESS;
}
return APR_EINVAL;
}
/* ***APRDOC********************************************************
* ap_status_t ap_create_pipe(ap_file_t **, ap_context_t *, ap_file_t **)
* Create an anonymous pipe.
* arg 1) The context to operate on.
* arg 2) The file descriptor to use as input to the pipe.
* arg 3) The file descriptor to use as output from the pipe.
*/
ap_status_t ap_create_pipe(struct file_t **in, struct file_t **out, ap_context_t *cont)
{
int filedes[2];
if (pipe(filedes) == -1) {
return errno;
}
(*in) = (struct file_t *)ap_palloc(cont, sizeof(struct file_t));
(*in)->cntxt = cont;
(*in)->filedes = filedes[0];
(*in)->buffered = 0;
(*in)->pipe = 1;
(*in)->fname = ap_pstrdup(cont, "PIPE");
(*in)->timeout = -1;
(*out) = (struct file_t *)ap_palloc(cont, sizeof(struct file_t));
(*out)->cntxt = cont;
(*out)->filedes = filedes[1];
(*out)->buffered = 0;
(*out)->pipe = 1;
(*out)->fname = ap_pstrdup(cont, "PIPE");
(*out)->timeout = -1;
pipenonblock(*in);
pipenonblock(*out);
return APR_SUCCESS;
}
/* ***APRDOC********************************************************
* ap_status_t ap_create_namedpipe(ap_context_t *, char *, ap_fileperms_t,
* char **)
* Create a named pipe.
* arg 1) The context to operate on.
* arg 2) The directory to create the pipe in.
* arg 3) The permissions for the newly created pipe.
* arg 4) The name of the new pipe.
*/
ap_status_t ap_create_namedpipe(char **new, char *dirpath,
ap_fileperms_t perm, ap_context_t *cont)
{
mode_t mode = get_fileperms(perm);
*new = tempnam(dirpath, NULL);
if (mkfifo((*new), mode) == -1) {
return errno;
}
return APR_SUCCESS;
}
ap_status_t ap_block_pipe(ap_file_t *thefile)
{
#ifndef BEOS /* this code won't work on BeOS */
int fd_flags;
fd_flags = fcntl(thefile->filedes, F_GETFL, 0);
#if defined(O_NONBLOCK)
fd_flags &= ~O_NONBLOCK;
#elif defined(~O_NDELAY)
fd_flags &= ~O_NDELAY;
#elif defined(FNDELAY)
fd_flags &= ~O_FNDELAY;
#else
/* XXXX: this breaks things, but an alternative isn't obvious...*/
return -1;
#endif
if (fcntl(thefile->filedes, F_SETFL, fd_flags) == -1) {
return errno;
}
#endif /* !BeOS */
return APR_SUCCESS;
}
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