/* Runs a test suite on the rsyslog parser (and later potentially
* other things).
*
* Please note that this
* program works together with the config file AND easily extensible
* test case files (*.parse1) to run a number of checks. All test
* cases are executed, even if there is a failure early in the
* process. When finished, the numberof failed tests will be given.
*
* Part of the testbench for rsyslog.
*
* Copyright 2009 Rainer Gerhards and Adiscon GmbH.
*
* This file is part of rsyslog.
*
* Rsyslog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rsyslog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Rsyslog. If not, see .
*
* A copy of the GPL can be found in the file "COPYING" in this distribution.
*/
#include "config.h"
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#define EXIT_FAILURE 1
void readLine(int fd, char *ln)
{
char c;
int lenRead;
lenRead = read(fd, &c, 1);
while(lenRead == 1 && c != '\n') {
*ln++ = c;
lenRead = read(fd, &c, 1);
}
*ln = '\0';
}
/* send a message via UDP
* returns 0 if ok, something else otherwise.
*/
int
udpSend(char *buf, int lenBuf)
{
struct sockaddr_in si_other;
int s, slen=sizeof(si_other);
if((s=socket(AF_INET, SOCK_DGRAM, 0))==-1) {
perror("socket()");
return(1);
}
memset((char *) &si_other, 0, sizeof(si_other));
si_other.sin_family = AF_INET;
si_other.sin_port = htons(12514);
if(inet_aton("127.0.0.1", &si_other.sin_addr)==0) {
fprintf(stderr, "inet_aton() failed\n");
return(1);
}
if(sendto(s, buf, lenBuf, 0, (struct sockaddr*) &si_other, slen)==-1) {
perror("sendto");
fprintf(stderr, "sendto() failed\n");
return(1);
}
close(s);
return 0;
}
/* open pipe to test candidate - so far, this is
* always rsyslogd and with a fixed config. Later, we may
* change this. Returns 0 if ok, something else otherwise.
* rgerhards, 2009-03-31
*/
int openPipe(pid_t *pid, int *pfd)
{
int pipefd[2];
pid_t cpid;
char *newargv[] = {"../tools/rsyslogd", "dummy", "-c4", "-u2", "-n", "-irsyslog.pid",
"-M../runtime//.libs", NULL };
char confFile[1024];
char *newenviron[] = { NULL };
sprintf(confFile, "-f%s/testruns/parser.conf", getenv("srcdir"));
newargv[1] = confFile;
if (pipe(pipefd) == -1) {
perror("pipe");
exit(EXIT_FAILURE);
}
cpid = fork();
if (cpid == -1) {
perror("fork");
exit(EXIT_FAILURE);
}
if(cpid == 0) { /* Child reads from pipe */
fclose(stdout);
dup(pipefd[1]);
close(pipefd[1]);
close(pipefd[0]);
fclose(stdin);
execve("../tools/rsyslogd", newargv, newenviron);
} else {
close(pipefd[1]);
*pid = cpid;
*pfd = pipefd[0];
}
return(0);
}
/* Process a specific test case. File name is provided.
* Needs to return 0 if all is OK, something else otherwise.
*/
int
processTestFile(int fd, char *pszFileName)
{
FILE *fp;
char *testdata = NULL;
char *expected = NULL;
int ret = 0;
size_t lenLn;
char buf[4096];
if((fp = fopen((char*)pszFileName, "r")) == NULL) {
perror((char*)pszFileName);
return(2);
}
/* skip comments at start of file */
getline(&testdata, &lenLn, fp);
while(!feof(fp)) {
if(*testdata == '#')
getline(&testdata, &lenLn, fp);
else
break; /* first non-comment */
}
testdata[strlen(testdata)-1] = '\0'; /* remove \n */
/* now we have the test data to send */
if(udpSend(testdata, strlen(testdata)) != 0)
return(2);
/* next line is expected output
* we do not care about EOF here, this will lead to a failure and thus
* draw enough attention. -- rgerhards, 2009-03-31
*/
getline(&expected, &lenLn, fp);
expected[strlen(expected)-1] = '\0'; /* remove \n */
/* pull response from server and then check if it meets our expectation */
readLine(fd, buf);
if(strcmp(expected, buf)) {
printf("\nExpected Response:\n'%s'\nActual Response:\n'%s'\n",
expected, buf);
ret = 1;
}
free(testdata);
free(expected);
fclose(fp);
return(ret);
}
/* carry out all tests. Tests are specified via a file name
* wildcard. Each of the files is read and the test carried
* out.
* Returns the number of tests that failed. Zero means all
* success.
*/
int
doTests(int fd, char *files)
{
int iFailed = 0;
int iTests = 0;
int ret;
char *testFile;
glob_t testFiles;
size_t i = 0;
struct stat fileInfo;
glob(files, GLOB_MARK, NULL, &testFiles);
for(i = 0; i < testFiles.gl_pathc; i++) {
testFile = testFiles.gl_pathv[i];
if(stat((char*) testFile, &fileInfo) != 0)
continue; /* continue with the next file if we can't stat() the file */
++iTests;
/* all regular files are run through the test logic. Symlinks don't work. */
if(S_ISREG(fileInfo.st_mode)) { /* config file */
printf("processing test case '%s' ... ", testFile);
ret = processTestFile(fd, testFile);
if(ret == 0) {
printf("successfully completed\n");
} else {
printf("failed!\n");
++iFailed;
}
}
}
globfree(&testFiles);
if(iTests == 0) {
printf("Error: no test cases found, no tests executed.\n");
iFailed = 1;
} else {
printf("Number of tests run: %d, number of failures: %d\n", iTests, iFailed);
}
return(iFailed);
}
/* */
int main(int argc, char *argv[])
{
int fd;
pid_t pid;
int ret = 0;
char buf[4096];
char testcases[4096];
printf("running rsyslog parser tests ($srcdir=%s)\n", getenv("srcdir"));
openPipe(&pid, &fd);
readLine(fd, buf);
/* generate filename */
sprintf(testcases, "%s/testruns/*.parse1", getenv("srcdir"));
if(doTests(fd, testcases) != 0)
ret = 1;
/* cleanup */
kill(pid, SIGTERM);
printf("End of parser tests.\n");
exit(ret);
}