Plan 9 from Bell Labs’s /usr/web/sources/patch/applied/ape-reentrant/getlogin.c.orig

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Distributed under the MIT License.
Download the Plan 9 distribution.


#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/limits.h>

char *
getlogin(void)
{
	static char buf[NAME_MAX+1];
	int f, n;

	f = open("/dev/user", O_RDONLY);
	if(f < 0)
		return 0;
	n = read(f, buf, NAME_MAX+1);
	close(f);
	return (n>=0)? buf : 0;
}

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