A64L(3) Library Functions Manual A64L(3)
a64l, l64a, l64a_r -- convert between a long integer and a base-64 ASCII
Standard C Library (libc, -lc)
a64l(const char *s);
l64a(long int l);
l64a_r(long int l, char *buffer, int buflen);
The a64l() and l64a() functions convert between a long integer and its
base-64 ASCII string representation.
The characters used to represent ``digits'' are `.' for 0, `/' for 1, `0'
- `9' for 2 - 11, `A' - `Z' for 12 - 37, and `a' - `z' for 38 - 63.
a64l() takes a pointer to a NUL-terminated base-64 ASCII string
representation, s, and returns the corresponding long integer value.
l64a() takes a long integer value, l, and returns a pointer to the
corresponding NUL-terminated base-64 ASCII string representation.
l64a_r() performs a conversion identical to that of l64a() and stores the
resulting representation in the memory area pointed to by buffer,
consuming at most buflen characters including the terminating NUL
On successful completion, a64l() returns the long integer value
corresponding to the input string. If the string pointed to by s is an
empty string, a64l() returns a value of 0L.
l64a() returns a pointer to the base-64 ASCII string representation
corresponding to the input value. If l is 0L, l64a() returns a pointer
to an empty string.
On successful completion, l64a_r() returns 0; if buffer is of
insufficient length, -1 is returned.
The a64l() and l64a() functions conform to X/Open Portability Guide
Issue 4, Version 2 (``XPG4.2'') and IEEE Std 1003.1-2004 (``POSIX.1'').
The l64a_r() function conforms to System V Interface Definition, Fourth
Edition (``SVID4''), Multithreading Extension.
The l64a() function is not reentrant. The value returned by it points
into a static buffer area; subsequent calls to la64a() may overwrite this
buffer. In multi-threaded applications, l64a_r() should be used instead.
NetBSD 6.1.5 May 6, 2010 NetBSD 6.1.5