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suricata/src/detect-rev.c

35 lines
856 B
C

/* REV part of the detection engine. */
#include "decode.h"
#include "detect.h"
#include "flow-var.h"
int DetectRevSetup (DetectEngineCtx *, Signature *s, SigMatch *m, char *str);
void DetectRevRegister (void) {
sigmatch_table[DETECT_REV].name = "rev";
sigmatch_table[DETECT_REV].Match = NULL;
sigmatch_table[DETECT_REV].Setup = DetectRevSetup;
sigmatch_table[DETECT_REV].Free = NULL;
sigmatch_table[DETECT_REV].RegisterTests = NULL;
}
int DetectRevSetup (DetectEngineCtx *de_ctx, Signature *s, SigMatch *m, char *rawstr)
{
char *str = rawstr;
char dubbed = 0;
/* strip "'s */
if (rawstr[0] == '\"' && rawstr[strlen(rawstr)-1] == '\"') {
str = strdup(rawstr+1);
str[strlen(rawstr)-2] = '\0';
dubbed = 1;
}
s->rev = (u_int8_t)atoi(str);
if (dubbed) free(str);
return 0;
}