get_pidfd_from_fd: return -1 on error, not 0
Fixes: 6974df39a
: newuidmap and newgidmap: support passing pid as fd
Signed-off-by: Serge Hallyn <serge@hallyn.com>
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@ -35,6 +35,7 @@ int get_pid (const char *pidstr, pid_t *pid)
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/*
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* If use passed in fd:4 as an argument, then return the
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* value '4', the fd to use.
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* On error, return -1.
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*/
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int get_pidfd_from_fd(const char *pidfdstr)
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{
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@ -47,7 +48,7 @@ int get_pidfd_from_fd(const char *pidfdstr)
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|| ('\0' != *endptr)
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|| (ERANGE == errno)
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|| (/*@+longintegral@*/val != (pid_t)val)/*@=longintegral@*/) {
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return 0;
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return -1;
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}
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return (int)val;
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