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-rw-r--r--tests/parsertest.c269
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diff --git a/tests/parsertest.c b/tests/parsertest.c
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+/* 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 <http://www.gnu.org/licenses/>.
+ *
+ * A copy of the GPL can be found in the file "COPYING" in this distribution.
+ */
+#include "config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+#include <arpa/inet.h>
+#include <assert.h>
+#include <unistd.h>
+#include <string.h>
+#include <glob.h>
+#include <netinet/in.h>
+
+#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);
+}