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9term: fix getpts on macOS 10.13 Since macOS 10.13, opening the /dev/ptyXX files always return ENOENT. Consequently, we changed getpts to use openpty to open a pseudoterminal, like on Linux and OpenBSD. Fixes #90. Fixes #110.
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 1 7321ed03 2017-10-13 0intro #define getpts not_using_this_getpts

 2 67e4fce4 2004-04-19 devnull #include "bsdpty.c"

 3 7321ed03 2017-10-13 0intro #undef getpts

 4 7321ed03 2017-10-13 0intro 

 5 7321ed03 2017-10-13 0intro #include <util.h>

 6 7321ed03 2017-10-13 0intro 

 7 7321ed03 2017-10-13 0intro int

 8 7321ed03 2017-10-13 0intro getpts(int fd[], char *slave)

 9 7321ed03 2017-10-13 0intro {

10 7321ed03 2017-10-13 0intro 	if(openpty(&fd[1], &fd[0], NULL, NULL, NULL) >= 0){

11 7321ed03 2017-10-13 0intro 		fchmod(fd[1], 0620);

12 7321ed03 2017-10-13 0intro 		strcpy(slave, ttyname(fd[0]));

13 7321ed03 2017-10-13 0intro 		return 0;

14 7321ed03 2017-10-13 0intro 	}

15 7321ed03 2017-10-13 0intro 	sysfatal("no ptys");

16 7321ed03 2017-10-13 0intro 	return 0;

17 7321ed03 2017-10-13 0intro }