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#include <unistd.h>
#include <errno.h>
#include <limits.h>
#include <string.h>
#include "syscall.h"
char *getcwd(char *buf, size_t size)
{
char tmp[PATH_MAX];
if (!buf) buf = tmp, size = PATH_MAX;
if (syscall(SYS_getcwd, buf, size) < 0) return 0;
return buf == tmp ? strdup(buf) : buf;
}
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