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init: handle getty string of "" (default)

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. the default entry for disabled ttys for getty
	  in /etc/ttys is "", but init crashed on handling that
	  string.

Change-Id: Ib7cd6c6869e338f47df0aa5abed36f15eda4f6ff
This commit is contained in:
Ben Gras 2013-06-11 14:30:31 +00:00
parent 93d9caa2d6
commit 63306d0ad5
1 changed files with 6 additions and 5 deletions
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11
servers/init/init.c
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@ -263,15 +263,16 @@ void startup(int linenr, struct ttyent *ttyp)
/* Construct argv for execute() */
ty_getty_argv = construct_argv(ttyp->ty_getty);
if (ty_getty_argv == NULL)
if (ty_getty_argv == NULL) {
report(2, "construct_argv");
/* Execute the getty process. */
execute(ty_getty_argv);
} else {
/* Execute the getty process. */
execute(ty_getty_argv);
}
/* Oops, disaster strikes. */
fcntl(2, F_SETFL, fcntl(2, F_GETFL) | O_NONBLOCK);
if (linenr != 0) report(2, ty_getty_argv[0]);
if (linenr != 0 && ty_getty_argv) report(2, ty_getty_argv[0]);
write(err[1], &errno, sizeof(errno));
_exit(1);
}