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4025b5b527
These sys/cdefs.h are not needed. Purge them. They are mostly left-over from the $FreeBSD$ removal. A few in libc are still required for macros that cdefs.h defines. Keep those. Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D42385 (cherry picked from commit 559a218c9b257775fb249b67945fe4a05b7a6b9f)
431 lines
11 KiB
C
431 lines
11 KiB
C
/*-
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* Copyright (c) 2009 David Schultz <das@FreeBSD.org>
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* Copyright (c) 2021 Dell EMC
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <atf-c.h>
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#define CHUNK_MAX 10
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/* The assertions depend on this string. */
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char apothegm[] = "All work and no play\0 makes Jack a dull boy.\n";
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/*
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* This is a neurotic reader function designed to give getdelim() a
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* hard time. It reads through the string `apothegm' and returns a
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* random number of bytes up to the requested length.
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*/
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static int
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_reader(void *cookie, char *buf, int len)
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{
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size_t *offp = cookie;
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size_t r;
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r = random() % CHUNK_MAX + 1;
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if (len > r)
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len = r;
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if (len > sizeof(apothegm) - *offp)
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len = sizeof(apothegm) - *offp;
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memcpy(buf, apothegm + *offp, len);
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*offp += len;
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return (len);
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}
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static FILE *
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mkfilebuf(void)
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{
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size_t *offp;
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offp = malloc(sizeof(*offp)); /* XXX leak */
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*offp = 0;
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return (fropen(offp, _reader));
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}
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ATF_TC_WITHOUT_HEAD(getline_basic);
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ATF_TC_BODY(getline_basic, tc)
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{
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FILE *fp;
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char *line;
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size_t linecap;
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int i;
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srandom(0);
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/*
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* Test multiple times with different buffer sizes
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* and different _reader() return values.
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*/
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errno = 0;
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for (i = 0; i < 8; i++) {
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fp = mkfilebuf();
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linecap = i;
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line = malloc(i);
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/* First line: the full apothegm */
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ATF_REQUIRE(getline(&line, &linecap, fp) == sizeof(apothegm) - 1);
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ATF_REQUIRE(memcmp(line, apothegm, sizeof(apothegm)) == 0);
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ATF_REQUIRE(linecap >= sizeof(apothegm));
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/* Second line: the NUL terminator following the newline */
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ATF_REQUIRE(getline(&line, &linecap, fp) == 1);
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ATF_REQUIRE(line[0] == '\0' && line[1] == '\0');
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/* Third line: EOF */
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line[0] = 'X';
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ATF_REQUIRE(getline(&line, &linecap, fp) == -1);
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ATF_REQUIRE(line[0] == '\0');
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free(line);
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line = NULL;
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ATF_REQUIRE(feof(fp));
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ATF_REQUIRE(!ferror(fp));
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fclose(fp);
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}
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ATF_REQUIRE(errno == 0);
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}
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ATF_TC_WITHOUT_HEAD(stream_error);
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ATF_TC_BODY(stream_error, tc)
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{
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char *line;
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size_t linecap;
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/* Make sure read errors are handled properly. */
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line = NULL;
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linecap = 0;
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errno = 0;
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ATF_REQUIRE(getline(&line, &linecap, stdout) == -1);
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ATF_REQUIRE(errno == EBADF);
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errno = 0;
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ATF_REQUIRE(getdelim(&line, &linecap, 'X', stdout) == -1);
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ATF_REQUIRE(errno == EBADF);
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ATF_REQUIRE(ferror(stdout));
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}
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ATF_TC_WITHOUT_HEAD(invalid_params);
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ATF_TC_BODY(invalid_params, tc)
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{
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FILE *fp;
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char *line;
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size_t linecap;
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/* Make sure NULL linep or linecapp pointers are handled. */
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fp = mkfilebuf();
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ATF_REQUIRE(getline(NULL, &linecap, fp) == -1);
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ATF_REQUIRE(errno == EINVAL);
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ATF_REQUIRE(getline(&line, NULL, fp) == -1);
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ATF_REQUIRE(errno == EINVAL);
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ATF_REQUIRE(ferror(fp));
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fclose(fp);
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}
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ATF_TC_WITHOUT_HEAD(eof);
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ATF_TC_BODY(eof, tc)
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{
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FILE *fp;
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char *line;
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size_t linecap;
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/* Make sure getline() allocates memory as needed if fp is at EOF. */
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errno = 0;
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fp = mkfilebuf();
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while (!feof(fp)) /* advance to EOF; can't fseek this stream */
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getc(fp);
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line = NULL;
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linecap = 0;
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printf("getline\n");
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ATF_REQUIRE(getline(&line, &linecap, fp) == -1);
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ATF_REQUIRE(line[0] == '\0');
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ATF_REQUIRE(linecap > 0);
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ATF_REQUIRE(errno == 0);
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printf("feof\n");
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ATF_REQUIRE(feof(fp));
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ATF_REQUIRE(!ferror(fp));
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fclose(fp);
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}
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ATF_TC_WITHOUT_HEAD(nul);
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ATF_TC_BODY(nul, tc)
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{
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FILE *fp;
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char *line;
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size_t linecap, n;
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errno = 0;
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line = NULL;
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linecap = 0;
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/* Make sure a NUL delimiter works. */
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fp = mkfilebuf();
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n = strlen(apothegm);
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printf("getdelim\n");
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ATF_REQUIRE(getdelim(&line, &linecap, '\0', fp) == n + 1);
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ATF_REQUIRE(strcmp(line, apothegm) == 0);
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ATF_REQUIRE(line[n + 1] == '\0');
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ATF_REQUIRE(linecap > n + 1);
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n = strlen(apothegm + n + 1);
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printf("getdelim 2\n");
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ATF_REQUIRE(getdelim(&line, &linecap, '\0', fp) == n + 1);
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ATF_REQUIRE(line[n + 1] == '\0');
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ATF_REQUIRE(linecap > n + 1);
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ATF_REQUIRE(errno == 0);
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ATF_REQUIRE(!ferror(fp));
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fclose(fp);
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}
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ATF_TC_WITHOUT_HEAD(empty_NULL_buffer);
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ATF_TC_BODY(empty_NULL_buffer, tc)
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{
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FILE *fp;
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char *line;
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size_t linecap;
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/* Make sure NULL *linep and zero *linecapp are handled. */
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fp = mkfilebuf();
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line = NULL;
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linecap = 42;
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ATF_REQUIRE(getline(&line, &linecap, fp) == sizeof(apothegm) - 1);
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ATF_REQUIRE(memcmp(line, apothegm, sizeof(apothegm)) == 0);
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fp = mkfilebuf();
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free(line);
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line = malloc(100);
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linecap = 0;
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ATF_REQUIRE(getline(&line, &linecap, fp) == sizeof(apothegm) - 1);
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ATF_REQUIRE(memcmp(line, apothegm, sizeof(apothegm)) == 0);
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free(line);
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ATF_REQUIRE(!ferror(fp));
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fclose(fp);
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}
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static void
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_ipc_read(int fd, char wait_c)
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{
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char c;
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ssize_t len;
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c = 0;
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while (c != wait_c) {
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len = read(fd, &c, 1);
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ATF_CHECK_MSG(len != 0,
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"EOF on IPC pipe while waiting. Did other side fail?");
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ATF_CHECK_MSG(len == 1 || errno == EINTR,
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"read %zu bytes errno %d\n", len, errno);
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if (len != 1 || errno != EINTR)
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break;
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}
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}
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static void
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_ipc_write(int fd, char c)
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{
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while ((write(fd, &c, 1) != 1))
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ATF_REQUIRE(errno == EINTR);
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}
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static void
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ipc_wait(int ipcfd[2])
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{
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_ipc_read(ipcfd[0], '+');
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/* Send ACK. */
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_ipc_write(ipcfd[1], '-');
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}
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static void
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ipc_wakeup(int ipcfd[2])
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{
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_ipc_write(ipcfd[1], '+');
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/* Wait for ACK. */
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_ipc_read(ipcfd[0], '-');
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}
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static void
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_nonblock_eagain(int buf_mode)
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{
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FILE *fp;
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const char delim = '!';
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const char *strs[] = {
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"first line partial!",
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"second line is sent in full!",
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"third line is sent partially!",
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"last line is sent in full!",
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};
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char *line;
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size_t linecap, strslen[nitems(strs)];
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ssize_t linelen;
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int fd_fifo, flags, i, ipcfd[2], pipedes[2], pipedes2[2], status;
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pid_t pid;
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line = NULL;
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linecap = 0;
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for (i = 0; i < nitems(strslen); i++)
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strslen[i] = strlen(strs[i]);
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ATF_REQUIRE(pipe2(pipedes, O_CLOEXEC) == 0);
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ATF_REQUIRE(pipe2(pipedes2, O_CLOEXEC) == 0);
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(void)unlink("fifo");
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ATF_REQUIRE(mkfifo("fifo", 0666) == 0);
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ATF_REQUIRE((pid = fork()) >= 0);
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if (pid == 0) {
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close(pipedes[0]);
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ipcfd[1] = pipedes[1];
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ipcfd[0] = pipedes2[0];
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close(pipedes2[1]);
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ATF_REQUIRE((fd_fifo = open("fifo", O_WRONLY)) != -1);
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/* Partial write. */
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ATF_REQUIRE(write(fd_fifo, strs[0], strslen[0] - 3) ==
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strslen[0] - 3);
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ipc_wakeup(ipcfd);
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ipc_wait(ipcfd);
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/* Finish off the first line. */
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ATF_REQUIRE(write(fd_fifo,
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&(strs[0][strslen[0] - 3]), 3) == 3);
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/* And include the second full line and a partial 3rd line. */
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ATF_REQUIRE(write(fd_fifo, strs[1], strslen[1]) == strslen[1]);
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ATF_REQUIRE(write(fd_fifo, strs[2], strslen[2] - 3) ==
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strslen[2] - 3);
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ipc_wakeup(ipcfd);
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ipc_wait(ipcfd);
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/* Finish the partial write and partially send the last. */
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ATF_REQUIRE(write(fd_fifo,
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&(strs[2][strslen[2] - 3]), 3) == 3);
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ATF_REQUIRE(write(fd_fifo, strs[3], strslen[3] - 3) ==
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strslen[3] - 3);
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ipc_wakeup(ipcfd);
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ipc_wait(ipcfd);
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/* Finish the write */
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ATF_REQUIRE(write(fd_fifo,
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&(strs[3][strslen[3] - 3]), 3) == 3);
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ipc_wakeup(ipcfd);
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_exit(0);
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}
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ipcfd[0] = pipedes[0];
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close(pipedes[1]);
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close(pipedes2[0]);
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ipcfd[1] = pipedes2[1];
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ATF_REQUIRE((fp = fopen("fifo", "r")) != NULL);
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setvbuf(fp, (char *)NULL, buf_mode, 0);
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ATF_REQUIRE((flags = fcntl(fileno(fp), F_GETFL, 0)) != -1);
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ATF_REQUIRE(fcntl(fileno(fp), F_SETFL, flags | O_NONBLOCK) >= 0);
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/* Wait until the writer completes its partial write. */
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ipc_wait(ipcfd);
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ATF_REQUIRE_ERRNO(EAGAIN,
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(linelen = getdelim(&line, &linecap, delim, fp)) == -1);
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ATF_REQUIRE_STREQ("", line);
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ATF_REQUIRE(ferror(fp));
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ATF_REQUIRE(!feof(fp));
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clearerr(fp);
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ipc_wakeup(ipcfd);
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ipc_wait(ipcfd);
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/*
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* Should now have the finished first line, a full second line,
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* and a partial third line.
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*/
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ATF_CHECK(getdelim(&line, &linecap, delim, fp) == strslen[0]);
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ATF_REQUIRE_STREQ(strs[0], line);
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ATF_REQUIRE(getdelim(&line, &linecap, delim, fp) == strslen[1]);
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ATF_REQUIRE_STREQ(strs[1], line);
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ATF_REQUIRE_ERRNO(EAGAIN,
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(linelen = getdelim(&line, &linecap, delim, fp)) == -1);
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ATF_REQUIRE_STREQ("", line);
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ATF_REQUIRE(ferror(fp));
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ATF_REQUIRE(!feof(fp));
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clearerr(fp);
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ipc_wakeup(ipcfd);
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/* Wait for the partial write to be completed and another to be done. */
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ipc_wait(ipcfd);
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ATF_REQUIRE((linelen = getdelim(&line, &linecap, delim, fp)) != -1);
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ATF_REQUIRE(!ferror(fp));
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ATF_REQUIRE(!feof(fp));
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ATF_REQUIRE_STREQ(strs[2], line);
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ATF_REQUIRE(linelen == strslen[2]);
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ATF_REQUIRE_ERRNO(EAGAIN,
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(linelen = getdelim(&line, &linecap, delim, fp)) == -1);
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ATF_REQUIRE_STREQ("", line);
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ATF_REQUIRE(ferror(fp));
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ATF_REQUIRE(!feof(fp));
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clearerr(fp);
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ipc_wakeup(ipcfd);
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ipc_wait(ipcfd);
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ATF_REQUIRE((linelen = getdelim(&line, &linecap, delim, fp)) != -1);
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ATF_REQUIRE(!ferror(fp));
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ATF_REQUIRE(!feof(fp));
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ATF_REQUIRE_STREQ(strs[3], line);
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ATF_REQUIRE(linelen == strslen[3]);
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ATF_REQUIRE(waitpid(pid, &status, WEXITED) != -1);
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ATF_REQUIRE(WIFEXITED(status));
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ATF_REQUIRE(WEXITSTATUS(status) == 0);
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}
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ATF_TC_WITHOUT_HEAD(nonblock_eagain_buffered);
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ATF_TC_BODY(nonblock_eagain_buffered, tc)
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{
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_nonblock_eagain(_IOFBF);
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}
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ATF_TC_WITHOUT_HEAD(nonblock_eagain_unbuffered);
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ATF_TC_BODY(nonblock_eagain_unbuffered, tc)
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{
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_nonblock_eagain(_IONBF);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, getline_basic);
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ATF_TP_ADD_TC(tp, stream_error);
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ATF_TP_ADD_TC(tp, eof);
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ATF_TP_ADD_TC(tp, invalid_params);
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ATF_TP_ADD_TC(tp, nul);
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ATF_TP_ADD_TC(tp, empty_NULL_buffer);
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ATF_TP_ADD_TC(tp, nonblock_eagain_unbuffered);
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ATF_TP_ADD_TC(tp, nonblock_eagain_buffered);
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return (atf_no_error());
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}
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