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* src/misc.c (ttyname) [OS/2]: Add an implementation for OS/2 kLIBC

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KO Myung-Hun 2023-02-18 13:43:16 -05:00 committed by Paul Smith
parent c85f68c4e9
commit 62194015fa
1 changed files with 39 additions and 0 deletions
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39
src/misc.c
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@ -28,6 +28,11 @@ this program. If not, see <https://www.gnu.org/licenses/>. */
# include <io.h>
#endif
#ifdef __EMX__
# define INCL_DOS
# include <os2.h>
#endif
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#else
@ -781,6 +786,40 @@ get_tmpfile (char **name)
}
#if HAVE_TTYNAME && defined(__EMX__)
/* OS/2 kLIBC has a declaration for ttyname(), so configure finds it.
But, it is not implemented! Roll our own. */
char *ttyname (int fd)
{
ULONG type;
ULONG attr;
ULONG rc;
rc = DosQueryHType (fd, &type, &attr);
if (rc)
{
errno = EBADF;
return NULL;
}
if (type == HANDTYPE_DEVICE)
{
if (attr & 3) /* 1 = KBD$, 2 = SCREEN$ */
return (char *) "/dev/con";
if (attr & 4) /* 4 = NUL */
return (char *) "/dev/nul";
if (attr & 8) /* 8 = CLOCK$ */
return (char *) "/dev/clock$";
}
errno = ENOTTY;
return NULL;
}
#endif
#if !HAVE_STRCASECMP && !HAVE_STRICMP && !HAVE_STRCMPI
/* If we don't have strcasecmp() (from POSIX), or anything that can substitute
for it, define our own version. */