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Avoid potentially following a symlink with open()

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Gabriel Kihlman 2019-05-15 12:50:05 +02:00
parent bec4e43732
commit 9d24c966c3
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1 changed files with 1 additions and 1 deletions
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ykpamcfg.c
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@ -250,7 +250,7 @@ do_add_hmac_chalresp(YK_KEY *yk, uint8_t slot, bool verbose, char *output_dir, u
umask(077);
fd = open (fn, O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, S_IRUSR | S_IWUSR);
fd = open (fn, O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC | O_NOFOLLOW | O_NOCTTY, S_IRUSR | S_IWUSR);
if (fd < 0) {
fprintf (stderr, "Failed to open '%s' for writing: %s\n", fn, strerror (errno));
goto out;