catgets - get message from a message catalog
#include <nl_types.h>
char *catgets(nl_catd catalog, int set_number, int message_number,
const char *message);
catgets() reads the message message_number, in set set_number, from the
message catalog identified by catalog, where catalog is a catalog
descriptor returned from an earlier call to catopen(3). The fourth
argument message points to a default message string which will be
returned by catgets() if the identified message catalog is not currently
available. The message-text is contained in an internal buffer
area and should be copied by the application if it is to be saved or
modified. The return string is always terminated with a null byte.
On success, catgets() returns a pointer to an internal buffer area containing
the null-terminated message string. On failure, catgets()
returns the value message.
These functions are only available in libc.so.4.4.4c and above. The
Jan 1987 X/Open Portability Guide specifies a more subtle error return:
message is returned if the message catalog specified by catalog is not
available, while an empty string is returned when the message catalog
is available but does not contain the specified message. These two
possible error returns seem to be discarded in XPG4.2 in favour of
always returning message.
XPG4.2
catopen(3), setlocale(3)
1998-08-09 CATGETS(3)
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