NAME     
| getwd – get current directory | 
SYNOPSIS     
| #include <u.h> #include <libc.h> 
    char* getwd(char *buf, int size) | 
DESCRIPTION     
| Getwd fills buf with a null–terminated string representing the
    current directory and returns buf. 
    Getwd places no more than size bytes in the buffer provided. | 
SOURCE     
| /sys/src/libc/9sys/getwd.c | 
SEE ALSO     
| pwd(1), fd2path(2) | 
DIAGNOSTICS     
| On error, zero is returned. Errstr(2) may be consulted for more
    information. | 
BUGS     
| Although the name returned by getwd is guaranteed to be the path
    used to reach the directory, if the name space has changed underfoot,
    the name may be incorrect. |