Subversion Repositories planix.SVN

#include        "l.h"

/*
 * fake malloc
 */
void*
malloc(ulong n)
{
        void *p;

        while(n & 7)
                n++;
        while(nhunk < n)
                gethunk();
        p = hunk;
        nhunk -= n;
        hunk += n;
        return p;
}

void
free(void *p)
{
        USED(p);
}

void*
calloc(ulong m, ulong n)
{
        void *p;

        n *= m;
        p = malloc(n);
        memset(p, 0, n);
        return p;
}

void*
realloc(void*, ulong)
{
        fprint(2, "realloc called\n");
        abort();
        return 0;
}

void*
mysbrk(ulong size)
{
        return sbrk(size);
}

void
setmalloctag(void*, ulong)
{
}

int
fileexists(char *s)
{
        uchar dirbuf[400];

        /* it's fine if stat result doesn't fit in dirbuf, since even then the file exists */
        return stat(s, dirbuf, sizeof(dirbuf)) >= 0;
}