NAME
catgets — read a
program message
SYNOPSIS
[XSI]
#include <nl_types.h>
char *catgets(nl_catd catd, int set_id, int msg_id, const char *s);
DESCRIPTION
The catgets () function shall attempt to
read message
msg_id,
in set
set_id,
from the message catalog identified by catd. The
catd argument is a message catalog descriptor returned
from an earlier call to catopen(3). The
s argument points to a default message string which shall
be returned by catgets () if it cannot retrieve the
identified message.
The catgets () function need not be
reentrant. A function that is not required to be reentrant is not required
to be thread-safe.
RETURN VALUE
If the identified message is retrieved successfully,
catgets () shall return a pointer to an internal
buffer area containing the null-terminated message string. If the call is
unsuccessful for any reason, s shall be returned and
errno
may be set to indicate the error.
ERRORS
The catgets () function may fail if:
- [EBADF]
- The catd argument is not a valid message catalog descriptor open for reading.
- [EBADMSG]
- The message identified by set_id and msg_id in the specified message catalog did not satisfy implementation-defined security criteria.
- [EINTR]
- The read operation was terminated due to the receipt of a signal, and no data was transferred.
- [EINVAL]
- The message catalog identified by catd is corrupted.
- [ENOMSG]
- The message identified by set_id and msg_id is not in the message catalog.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
catclose(3) , catopen(3) , the Base Definitions volume of IEEE Std 1003.1-2001 (“POSIX.1”), <nl_types.h>
CHANGE HISTORY
First released in Issue 2.
Issue 5
A note indicating that this function need not be reentrant is added to the DESCRIPTION.
Issue 6
In the DESCRIPTION, the note about reentrancy is expanded to cover thread-safety.
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