mirror of
https://github.com/tstack/lnav
synced 2024-11-17 15:29:40 +00:00
13f5ad0dce
* This change removes the external dependency on OpenSSL, which should allow the code to compile on Mac OS X without specifying the MAC_OS_X_VERSION_MIN_REQUIRED non-sense. * Spookyhash should be faster than SHA-1's Merkle-Damgård construction. * Spookyhash is only 128-bits as opposed to SHA-1's 160-bits so memory consumption should be less. I doubt it will lead to too many collisions. * The docs are updated to reflect the fact that OpenSSL is not a dependency.
163 lines
4.0 KiB
C++
163 lines
4.0 KiB
C++
/**
|
|
* Copyright (c) 2007-2012, Timothy Stack
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* * Neither the name of Timothy Stack nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
|
|
#include <map>
|
|
#include <list>
|
|
#include <vector>
|
|
#include <algorithm>
|
|
|
|
#include "pcrepp.hh"
|
|
#include "logfile.hh"
|
|
#include "sequence_sink.hh"
|
|
#include "sequence_matcher.hh"
|
|
|
|
using namespace std;
|
|
|
|
class my_source : public grep_proc_source {
|
|
|
|
public:
|
|
my_source(auto_fd &fd) : ms_offset(0) {
|
|
this->ms_buffer.set_fd(fd);
|
|
};
|
|
|
|
bool grep_value_for_line(int line_number, string &value_out) {
|
|
bool retval = false;
|
|
|
|
try {
|
|
size_t len;
|
|
char *line;
|
|
|
|
if ((line = this->ms_buffer.read_line(this->ms_offset,
|
|
len)) != NULL) {
|
|
value_out = string(line, len);
|
|
retval = true;
|
|
}
|
|
}
|
|
catch (line_buffer::error &e) {
|
|
fprintf(stderr,
|
|
"error: source buffer error %d %s\n",
|
|
this->ms_buffer.get_fd(),
|
|
strerror(e.e_err));
|
|
}
|
|
|
|
return retval;
|
|
};
|
|
|
|
private:
|
|
line_buffer ms_buffer;
|
|
off_t ms_offset;
|
|
|
|
};
|
|
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int c, retval = EXIT_SUCCESS;
|
|
const char *errptr;
|
|
auto_fd fd;
|
|
pcre *code;
|
|
int eoff;
|
|
|
|
if (argc < 3) {
|
|
fprintf(stderr, "error: expecting pattern and file arguments\n");
|
|
retval = EXIT_FAILURE;
|
|
}
|
|
else if ((fd = open(argv[2], O_RDONLY)) == -1) {
|
|
perror("open");
|
|
retval = EXIT_FAILURE;
|
|
}
|
|
else if ((code = pcre_compile(argv[1],
|
|
PCRE_CASELESS,
|
|
&errptr,
|
|
&eoff,
|
|
NULL)) == NULL) {
|
|
fprintf(stderr, "error: invalid pattern -- %s\n", errptr);
|
|
}
|
|
else {
|
|
my_source ms(fd);
|
|
fd_set read_fds;
|
|
int maxfd;
|
|
|
|
sequence_matcher::field_col_t fc;
|
|
|
|
fc.resize(2);
|
|
|
|
sequence_matcher::field_row_t &frf = fc.front();
|
|
frf.resize(2);
|
|
frf[0] = "eth0";
|
|
frf[1] = "eth0";
|
|
|
|
sequence_matcher::field_row_t &frb = fc.back();
|
|
frb.resize(2);
|
|
frb[0] = "up";
|
|
frb[1] = "down";
|
|
|
|
static bookmark_type_t SEQUENCE;
|
|
|
|
sequence_matcher sm(fc);
|
|
vis_bookmarks bm;
|
|
sequence_sink ss(sm, bm[&SEQUENCE]);
|
|
|
|
FD_ZERO(&read_fds);
|
|
|
|
grep_proc gp(code, ms, maxfd, read_fds);
|
|
|
|
gp.queue_request();
|
|
gp.start();
|
|
gp.set_sink(&ss);
|
|
|
|
while (bm[&SEQUENCE].size() == 0) {
|
|
fd_set rfds = read_fds;
|
|
|
|
select(maxfd + 1, &rfds, NULL, NULL, NULL);
|
|
|
|
gp.check_fd_set(rfds);
|
|
}
|
|
|
|
for (bookmark_vector<vis_line_t>::iterator iter = bm[&SEQUENCE].begin();
|
|
iter != bm[&SEQUENCE].end();
|
|
++iter) {
|
|
printf("%d\n", (const int)*iter);
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|