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137 lines
2.5 KiB
C++
137 lines
2.5 KiB
C++
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <openssl/sha.h>
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#include <map>
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#include <list>
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#include <vector>
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#include <algorithm>
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#include "pcrepp.hh"
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#include "logfile.hh"
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#include "sequence_sink.hh"
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#include "sequence_matcher.hh"
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using namespace std;
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class my_source : public grep_proc_source {
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public:
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my_source(auto_fd &fd) : ms_offset(0) {
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this->ms_buffer.set_fd(fd);
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};
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bool grep_value_for_line(int line_number, string &value_out) {
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bool retval = false;
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try {
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size_t len;
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char *line;
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if ((line = this->ms_buffer.read_line(this->ms_offset,
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len)) != NULL) {
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value_out = string(line, len);
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retval = true;
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}
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}
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catch (line_buffer::error &e) {
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fprintf(stderr,
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"error: source buffer error %d %s\n",
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this->ms_buffer.get_fd(),
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strerror(e.e_err));
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}
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return retval;
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};
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private:
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line_buffer ms_buffer;
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off_t ms_offset;
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};
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int main(int argc, char *argv[])
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{
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int c, retval = EXIT_SUCCESS;
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const char *errptr;
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auto_fd fd;
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pcre *code;
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int eoff;
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if (argc < 3) {
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fprintf(stderr, "error: expecting pattern and file arguments\n");
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retval = EXIT_FAILURE;
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}
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else if ((fd = open(argv[2], O_RDONLY)) == -1) {
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perror("open");
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retval = EXIT_FAILURE;
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}
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else if ((code = pcre_compile(argv[1],
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PCRE_CASELESS,
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&errptr,
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&eoff,
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NULL)) == NULL) {
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fprintf(stderr, "error: invalid pattern -- %s\n", errptr);
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}
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else {
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my_source ms(fd);
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fd_set read_fds;
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int maxfd;
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sequence_matcher::field_col_t fc;
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fc.resize(2);
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sequence_matcher::field_row_t &frf = fc.front();
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frf.resize(2);
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frf[0] = "eth0";
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frf[1] = "eth0";
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sequence_matcher::field_row_t &frb = fc.back();
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frb.resize(2);
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frb[0] = "up";
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frb[1] = "down";
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static bookmark_type_t SEQUENCE;
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sequence_matcher sm(fc);
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bookmarks bm;
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sequence_sink ss(sm, bm[&SEQUENCE]);
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FD_ZERO(&read_fds);
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grep_proc gp(code, ms, maxfd, read_fds);
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gp.queue_request();
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gp.start();
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gp.set_sink(&ss);
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while (bm[&SEQUENCE].size() == 0) {
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fd_set rfds = read_fds;
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select(maxfd + 1, &rfds, NULL, NULL, NULL);
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gp.check_fd_set(rfds);
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}
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for (bookmark_vector::iterator iter = bm[&SEQUENCE].begin();
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iter != bm[&SEQUENCE].end();
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++iter) {
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printf("%d\n", (const int)*iter);
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}
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}
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return retval;
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}
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