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use ttyname_r if ptsname_r is not available

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This commit is contained in:
hyung-hwan 2023-01-02 04:16:50 +00:00
parent e86a1feee6
commit d6f9917389
2 changed files with 24 additions and 3 deletions
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11
bin/te.c
View File

@ -180,9 +180,9 @@ int x11_setup(struct X11 *x11)
x11->buf_x = 0;
x11->buf_y = 0;
x11->buf = malloc(x11->buf_w * x11->buf_h);
if (x11->buf == NULL)
if (!x11->buf )
{
perror("calloc");
fprintf(stderr, "Could not allocate terminal buffer\n");
return -1;
}
memset (x11->buf, ' ', x11->buf_w * x11->buf_h);
@ -363,7 +363,7 @@ int main()
hio = hio_open(HIO_NULL, 0, HIO_NULL, HIO_FEATURE_ALL, 512, HIO_NULL);
if (!hio)
{
printf ("Cannot open hio\n");
fprintf (stderr, "Error: Unable to open hio\n");
return -1;
}
@ -382,6 +382,11 @@ int main()
pi.on_read = pty_on_read;
pi.on_close = pty_on_close;
pty = hio_dev_pty_make(hio, HIO_SIZEOF(*pair), &pi);
if (!pty)
{
fprintf (stderr, "Error: Unable to create pty - %s\n", hio_geterrbmsg(hio));
return -1;
}
pair = hio_dev_pty_getxtn(pty);
pair->x11 = &x11;

16
lib/pty.c
View File

@ -38,6 +38,13 @@
#if defined(HAVE_PTY_H)
# include <pty.h>
#endif
#if defined(HAVE_PATHS_H)
# include <paths.h>
#endif
#if !defined(_PATH_DEV)
# define _PATH_DEV "/dev/"
#endif
/* ========================================================================= */
@ -215,7 +222,11 @@ static int dev_pty_make (hio_dev_t* dev, void* ctx)
hio_oow_t capa = HIO_COUNTOF(pts_name_buf);
/* open a pty slave device name */
#if defined(HAVE_PTSNAME_R)
if (ptsname_r(pfds[0], ptr, capa) != 0)
#else
if (ttyname_r(pfds[0], ptr, capa) != 0)
#endif
{
if (errno == ERANGE)
{
@ -233,6 +244,11 @@ static int dev_pty_make (hio_dev_t* dev, void* ctx)
goto oops;
}
#if !defined(HAVE_PTSNAME_R)
/* ttyname_r() gives something like /dev/ptyp0. change the leading p to t */
ptr[HIO_SIZEOF(_PATH_DEV) - 1] = 't';
#endif
/* open a pty slave */
pfds[1] = open(ptr, O_RDWR | O_NOCTTY);
if (pfds[1] == -1)