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#define _GNU_SOURCE
#include "grok.h"
#include "grok_program.h"
#include "grok_config.h"
#include "conf.tab.h"
#include <unistd.h>
#include <getopt.h>
extern char *optarg; /* from unistd.h, getopt */
extern FILE *yyin; /* from conf.lex (flex provides this) */
static char *g_prog;
void usage() {
printf("Usage: %s [--verbose] [--patterns PATTERNSFILE]\n", g_prog);
printf(" --verbose\n");
printf(" --patterns PATTERNSFILE\n");
}
int main(int argc, char **argv) {
int opt = 0;
g_prog = argv[0];
struct option options[] = {
{ "patterns", required_argument, NULL, 'p' },
{ "help", no_argument, NULL, 'h' },
{ "verbose", no_argument, NULL, 'v' },
{ 0, 0, 0, 0 }
};
const char *prog = argv[0];
grok_t grok;
grok_init(&grok);
int pattern_count = 0;
while ((opt = getopt_long_only(argc, argv, "hp:v", options, NULL)) != -1) {
switch (opt) {
case 'h':
usage();
return 0;
case 'p':
pattern_count++;
grok_patterns_import_from_file(&grok, optarg);
break;
case 'v':
grok.logmask =~ 0;
break;
default:
usage();
return 1;
}
}
if (pattern_count == 0) {
fprintf(stderr, "%s: No patterns loaded.\n", prog);
fprintf(stderr, "You want to specify at least one patterns file to load\n");
return 1;
}
argc -= optind;
argv += optind;
int i;
FILE *fp = stdin;
if (argc > 0 && strcmp(argv[0], "-")) {
fp = fopen(argv[0], "r");
}
char buf[4096];
grok_discover_t *gdt;
gdt = grok_discover_new(&grok);
char *discovery;
int unused_length;
while (fgets(buf, 4096, fp) != NULL) {
strrchr(buf, '\n')[0] = '\0';
grok_discover(gdt, buf, &discovery, &unused_length);
printf("%s\n", discovery);
free(discovery);
}
grok_discover_free(gdt);
return 0; }
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