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CATGETS(3) Linux Programmer's Manual CATGETS(3)

NAME
catgets - get message from a message catalog

SYNOPSIS
#include <nl_types.h>

char *catgets(nl_catd catalog, int set_number, int message_number,
const char *message);

DESCRIPTION
catgets() reads the message message_number, in set set_number, from the message catalog identified by catalog, where cat-
alog 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.

RETURN VALUE
On success, catgets() returns a pointer to an internal buffer area containing the null-terminated message string. On
failure, catgets() returns the value message.

CONFORMING TO
POSIX.1-2001.

NOTES
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 SUSv2 in favor of always returning message.