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/* Checks if a file consists of line of strictly monotonically
* increasing numbers. An expected start and end number may
* be set.
*
* Params
* -f<filename> MUST be given!
* -s<starting number> -e<ending number>
* default for s is 0. -e should be given (else it is also 0)
* -d may be specified, in which case duplicate messages are permitted.
*
* 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 <string.h>
#include <getopt.h>
int main(int argc, char *argv[])
{
FILE *fp;
int val;
int i;
int ret = 0;
int scanfOK;
int verbose = 0;
int bHaveExtraData = 0;
int dupsPermitted = 0;
int start = 0, end = 0;
int opt;
int nDups = 0;
int edLen; /* length of extra data */
static char edBuf[500*1024]; /* buffer for extra data (pretty large to be on the save side...) */
char *file = NULL;
while((opt = getopt(argc, argv, "e:f:ds:vE")) != EOF) {
switch((char)opt) {
case 'f':
file = optarg;
break;
case 'd':
dupsPermitted = 1;
break;
case 'e':
end = atoi(optarg);
break;
case 's':
start = atoi(optarg);
break;
case 'v':
++verbose;
break;
case 'E':
bHaveExtraData = 1;
break;
default:printf("Invalid call of chkseq, optchar='%c'\n", opt);
printf("Usage: chkseq file -sstart -eend -d -E\n");
exit(1);
}
}
if(file == NULL) {
printf("file must be given!\n");
exit(1);
}
if(start > end) {
printf("start must be less than or equal end!\n");
exit(1);
}
if(verbose) {
printf("chkseq: start %d, end %d\n", start, end);
}
/* read file */
fp = fopen(file, "r");
if(fp == NULL) {
printf("error opening file '%s'\n", file);
perror(file);
exit(1);
}
for(i = start ; i < end+1 ; ++i) {
if(bHaveExtraData) {
scanfOK = fscanf(fp, "%d,%d,%s\n", &val, &edLen, edBuf) == 3 ? 1 : 0;
if(edLen != (int) strlen(edBuf)) {
printf("extra data length specified %d, but actually is %ld in record %d\n",
edLen, (long) strlen(edBuf), i);
exit(1);
}
} else {
scanfOK = fscanf(fp, "%d\n", &val) == 1 ? 1 : 0;
}
if(!scanfOK) {
printf("scanf error in index i=%d\n", i);
exit(1);
}
if(val != i) {
if(val == i - 1 && dupsPermitted) {
--i;
++nDups;
} else {
printf("read value %d, but expected value %d\n", val, i);
exit(1);
}
}
}
if(nDups != 0)
printf("info: had %d duplicates (this is no error)\n", nDups);
if(i - 1 != end) {
printf("only %d records in file, expected %d\n", i - 1, end);
exit(1);
}
if(!feof(fp)) {
printf("end of processing, but NOT end of file!\n");
exit(1);
}
exit(ret);
}
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