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From deraadt@openbsd:

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Wrap bind() to AF_UNIX with umask() to avoid race.
This commit is contained in:
elad 2005-06-25 18:41:30 +00:00
parent d091e19a34
commit ddb0410ecc
1 changed files with 3 additions and 0 deletions
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3
bin/systrace/cradle.c
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@ -103,6 +103,7 @@ static int
mkunserv(const char *path)
{
int s;
mode_t old_umask;
struct sockaddr_un sun;
if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
@ -115,8 +116,10 @@ mkunserv(const char *path)
sizeof (sun.sun_path))
errx(1, "Path too long: %s", path);
old_umask = umask(S_IRUSR|S_IWUSR);
if (bind(s, (struct sockaddr *)&sun, sizeof(sun)) == -1)
err(1, "bind()");
umask(old_umask);
if (chmod(path, S_IRUSR | S_IWUSR) == -1)
err(1, "chmod()");