getcwd - Get the pathname of the current directory
Standard C Library:
#include <unistd.h>
char *getcwd(
char *buffer,
size_t size );
System V Library:
char *getcwd(
char *buffer,
int size );
Standard C Library (libc) System V Library (libsysv)
Interfaces documented on this reference page conform to
industry standards as follows:
getcwd() - libc version: XSH5.0
Refer to the standards(5) reference page for more information
about industry standards and associated tags.
Points to a string space to hold the pathname. Specifies
the length of the string space in bytes. The value of the
size parameter must be at least the length of the pathname
to be returned plus one byte for the terminating null.
The getcwd() function returns a pointer to a string containing
the absolute pathname of the current directory.
The getwd() function is called to obtain the pathname.
[Tru64 UNIX] If the buffer parameter is a null pointer,
the getcwd() function, using the malloc() function,
obtains the number of bytes of free space as specified by
the size parameter. In this case, the pointer returned by
the getcwd() function can be used as the parameter in a
subsequent call to the free() function.
[Tru64 UNIX] The getcwd() function is supported for multithreaded
applications.
Upon successful completion, getcwd() returns the buffer
parameter. Otherwise, a null value is returned and errno
is set to indicate the error.
The getcwd() function sets errno to the specified values
for the following conditions: Read or search permission
was denied for a component of the pathname. The size
parameter is zero.
[Tru64 UNIX] The size parameter is less than or
equal to zero (for the libsys5 version of getcwd()
only). The size parameter is greater than zero,
but is smaller than the length of the pathname + 1.
The requested amount of memory could not be allocated.
Functions: malloc(3), getwd(3)
Standards: standards(5)
getcwd(3)
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