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89 lines
2.4 KiB
C
89 lines
2.4 KiB
C
/*
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* Copyright © 2013 Guillem Jover <guillem@hadrons.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/wait.h>
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#include <assert.h>
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#include <unistd.h>
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#include <wchar.h>
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#include <stdio.h>
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#include "test-stream.h"
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FILE *
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pipe_feed(enum pipe_data_mode mode, const void **buf, int buf_nmemb)
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{
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FILE *fp;
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int rc;
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int pipefd[2];
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pid_t pid;
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rc = pipe(pipefd);
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assert(rc >= 0);
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pid = fork();
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assert(pid >= 0);
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if (pid == 0) {
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int line;
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/* Child writes data to pipe. */
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rc = close(pipefd[0]);
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assert(rc >= 0);
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fp = fdopen(pipefd[1], "w");
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assert(fp);
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for (line = 0; line < buf_nmemb; line++) {
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if (mode == PIPE_DATA_ASCII)
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rc = fprintf(fp, "%s", (const char *)buf[line]);
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else
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rc = fprintf(fp, "%ls", (const wchar_t *)buf[line]);
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assert(rc >= 0);
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}
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rc = fclose(fp);
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assert(rc >= 0);
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_exit(0);
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} else {
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/* Parent gets a FILE and reads from it. */
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rc = close(pipefd[1]);
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assert(rc >= 0);
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fp = fdopen(pipefd[0], "r");
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assert(fp);
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return fp;
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}
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}
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void
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pipe_close(FILE *fp)
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{
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fclose(fp);
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wait(NULL);
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}
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