filter_ref: avoid overwriting ref->old_sha1 with garbage

[git] / test-index-version.c

#include "cache.h"

int main(int argc, char **argv)
{
        struct cache_header hdr;
        int version;

        memset(&hdr,0,sizeof(hdr));
        if (read(0, &hdr, sizeof(hdr)) != sizeof(hdr))
                return 0;
        version = ntohl(hdr.hdr_version);
        printf("%d\n", version);
        return 0;
}