[pcre-dev] An issue from a pcre user

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Autor: 徐?z
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Dla: pcre-dev
Temat: [pcre-dev] An issue from a pcre user
Hi,

When I used the pattern "((.|\n)+)" to match a huge buffer which size was
about 32Kbytes, I got a segmentation fault. Is it a bug? My pcre version is
8.10 and I ran "./configure" to generate Makefile. The following is my test
program.

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include "pcre.h"

#define SRC_STR_LEN (4096 * 32)

char src_str[SRC_STR_LEN];

int pcre_test_func(int argc, char *argv[])
{
        pcre *expression;
        char *pattern = "((.|\n)+)";
        int ovector[300] = {0};
        const char *err;
        int err_offset;
        int i = 0;


        for(i=0; i< SRC_STR_LEN; i++) {
                src_str[i] = 'a';
        }


        expression = pcre_compile(pattern, 0, &err, &err_offset, NULL);
        if (expression == NULL) {
                printf("pcre_compile failed.\n");
                return -1;
        }


        ovector[0] = -1;
        ovector[1] = 0;


        printf("%s: %d\n", __FUNCTION__, __LINE__);


        pcre_exec(expression, NULL, src_str, SRC_STR_LEN, 0, 0, ovector,
300);


        printf("%s: %d\n", __FUNCTION__, __LINE__);


        pcre_free(expression);


        return 0;
}


int main(int argc,char *argv[])
{
        pcre_test_func(argc, argv);
        return 0;
}