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getcwd(3) Library Functions Manual getcwd(3) NAME getcwd - Gets the pathname of the current directory LIBRARY Standard C Library (libc.so, libc.a) System V Compatibility Library (libsys5.a) SYNOPSIS Standard C Library: #include <unistd.h> char *getcwd( char *buffer, size_t size); System V Compatibility Library: char *getcwd( char *buffer, int size); STANDARDS Interfaces documented on this reference page conform to industry stan- dards as follows: getcwd() - libc version: XPG4, XPG4-UNIX Refer to the standards(5) reference page for more information about in- dustry standards and associated tags. PARAMETERS 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. DESCRIPTION The getcwd() function returns a pointer to a string containing the ab- solute pathname of the current directory. The getwd() function is called to obtain the pathname. [Digital] If the buffer parameter is a null pointer, the getcwd() func- tion, 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. NOTES [Digital] The getcwd() function is supported for multithreaded appli- cations. RETURN VALUES Upon successful completion, getcwd() returns the buffer parameter. Otherwise, a null value is returned and errno is set to indicate the error. ERRORS The getcwd() function sets errno to the specified values for the fol- lowing conditions: Read or search permission was denied for a component of the pathname. The size parameter is zero. [Digital] 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 path- name + 1. The requested amount of memory could not be allo- cated. RELATED INFORMATION Functions: malloc(3), getwd(3) Standards: standards(5) delim off getcwd(3)