- catching a polymorphic type by value - "output between 16 and 95 bytes into a destination of size 80"
187 lines
5.2 KiB
C
187 lines
5.2 KiB
C
/*-
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* Copyright (c) 2014 Spectra Logic Corporation. All rights reserved.
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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 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 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/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdbool.h>
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#include <stdio.h>
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <atf-c.h>
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const char create_pat[] = "!system=DEVFS subsystem=CDEV type=CREATE cdev=md";
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const char destroy_pat[] = "!system=DEVFS subsystem=CDEV type=DESTROY cdev=md";
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/* Helper functions*/
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/*
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* Create two devd events. The easiest way I know of, that requires no special
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* hardware, is to create md(4) devices.
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*/
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static void
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create_two_events(void)
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{
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FILE *create_stdout;
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FILE *destroy_stdout;
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char mdname[80];
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char destroy_cmd[95];
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char *error;
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create_stdout = popen("mdconfig -a -s 64 -t null", "r");
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ATF_REQUIRE(create_stdout != NULL);
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error = fgets(mdname, sizeof(mdname), create_stdout);
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ATF_REQUIRE(error != NULL);
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/* We only expect one line of output */
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ATF_REQUIRE_EQ(0, pclose(create_stdout));
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snprintf(destroy_cmd, nitems(destroy_cmd), "mdconfig -d -u %s", mdname);
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destroy_stdout = popen(destroy_cmd, "r");
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ATF_REQUIRE(destroy_stdout != NULL);
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/* We expect no output */
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ATF_REQUIRE_EQ(0, pclose(destroy_stdout));
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}
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/* Setup and return an open client socket */
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static int
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common_setup(int socktype, const char* sockpath) {
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struct sockaddr_un devd_addr;
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int s, error;
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memset(&devd_addr, 0, sizeof(devd_addr));
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devd_addr.sun_family = PF_LOCAL;
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strlcpy(devd_addr.sun_path, sockpath, sizeof(devd_addr.sun_path));
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s = socket(PF_LOCAL, socktype, 0);
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ATF_REQUIRE(s >= 0);
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error = connect(s, (struct sockaddr*)&devd_addr, SUN_LEN(&devd_addr));
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ATF_REQUIRE_EQ(0, error);
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create_two_events();
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return (s);
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}
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/*
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* Test Cases
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*/
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/*
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* Open a client connection to devd, create some events, and test that they can
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* be read _whole_ and _one_at_a_time_ from the socket
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*/
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ATF_TC_WITHOUT_HEAD(seqpacket);
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ATF_TC_BODY(seqpacket, tc)
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{
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int s;
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bool got_create_event = false;
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bool got_destroy_event = false;
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s = common_setup(SOCK_SEQPACKET, "/var/run/devd.seqpacket.pipe");
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/*
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* Loop until both events are detected on _different_ reads
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* There may be extra events due to unrelated system activity
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* If we never get both events, then the test will timeout.
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*/
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while (!(got_create_event && got_destroy_event)) {
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int cmp;
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ssize_t len;
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char event[1024];
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/* Read 1 less than sizeof(event) to allow space for NULL */
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len = recv(s, event, sizeof(event) - 1, MSG_WAITALL);
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ATF_REQUIRE(len != -1);
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/* NULL terminate the result */
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event[len] = '\0';
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printf("%s", event);
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cmp = strncmp(event, create_pat, sizeof(create_pat) - 1);
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if (cmp == 0)
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got_create_event = true;
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cmp = strncmp(event, destroy_pat, sizeof(destroy_pat) - 1);
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if (cmp == 0)
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got_destroy_event = true;
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}
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close(s);
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}
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/*
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* Open a client connection to devd using the stream socket, create some
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* events, and test that they can be read in any number of reads.
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*/
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ATF_TC_WITHOUT_HEAD(stream);
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ATF_TC_BODY(stream, tc)
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{
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int s;
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bool got_create_event = false;
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bool got_destroy_event = false;
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ssize_t len = 0;
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s = common_setup(SOCK_STREAM, "/var/run/devd.pipe");
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/*
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* Loop until both events are detected on the same or different reads.
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* There may be extra events due to unrelated system activity.
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* If we never get both events, then the test will timeout.
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*/
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while (!(got_create_event && got_destroy_event)) {
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char event[1024];
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ssize_t newlen;
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char *create_pos, *destroy_pos;
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/* Read 1 less than sizeof(event) to allow space for NULL */
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newlen = read(s, &event[len], sizeof(event) - len - 1);
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ATF_REQUIRE(newlen != -1);
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len += newlen;
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/* NULL terminate the result */
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event[len] = '\0';
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printf("%s", event);
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create_pos = strstr(event, create_pat);
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if (create_pos != NULL)
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got_create_event = true;
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destroy_pos = strstr(event, destroy_pat);
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if (destroy_pos != NULL)
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got_destroy_event = true;
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}
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close(s);
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}
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/*
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* Main.
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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, seqpacket);
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ATF_TP_ADD_TC(tp, stream);
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return (atf_no_error());
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}
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