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#include <u.h>
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#include <libc.h>
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#include <auth.h>
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#include <fcall.h>
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#include "../boot/boot.h"
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char	*authaddr;
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static void glenda(void);
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void
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authentication(int cpuflag)
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{
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	char *s;
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	char *argv[16], **av;
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	int ac;
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	if(access("/boot/factotum", AEXEC) < 0){
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		glenda();
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		return;
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	}
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	/* start agent */
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	ac = 0;
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	av = argv;
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	av[ac++] = "factotum";
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	if(getenv("debugfactotum"))
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		av[ac++] = "-p";
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	s = getenv("factotumopts");
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	if(s != nil && *s != '\0')
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		av[ac++] = s;
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//	av[ac++] = "-d";		/* debug traces */
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//	av[ac++] = "-D";		/* 9p messages */
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	if(cpuflag)
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		av[ac++] = "-S";
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	else
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		av[ac++] = "-u";
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	av[ac++] = "-sfactotum";
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	if(authaddr != nil){
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		av[ac++] = "-a";
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		av[ac++] = authaddr;
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	}
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	av[ac] = 0;
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	switch(fork()){
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	case -1:
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		fatal("starting factotum");
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	case 0:
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		exec("/boot/factotum", av);
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		fatal("execing /boot/factotum");
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	}
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	/* wait for agent to really be there */
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	while(access("/mnt/factotum", 0) < 0)
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		sleep(250);
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}
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static void
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glenda(void)
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{
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	int fd;
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	char *s;
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	s = getenv("user");
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	if(s == nil)
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		s = "glenda";
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	fd = open("#c/hostowner", OWRITE);
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	if(fd >= 0){
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		if(write(fd, s, strlen(s)) != strlen(s))
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			fprint(2, "setting #c/hostowner to %s: %r\n", s);
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		close(fd);
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	}
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}