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Only check errno if getpwuid() fails - slock - simple X display locker utility |
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git clone git://git.suckless.org/slock |
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README |
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LICENSE |
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--- |
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commit 8745098fa440ef3bf1d8e173dcd91514b34600c6 |
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parent 9db14b10dd09336c6a8fe283f99108c9acc4667a |
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Author: sin <[email protected]> |
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Date: Wed, 9 Jul 2014 14:40:49 +0100 |
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Only check errno if getpwuid() fails |
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Checking errno otherwise is unspecified. |
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Diffstat: |
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M slock.c | 10 ++++++---- |
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1 file changed, 6 insertions(+), 4 deletions(-) |
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--- |
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diff --git a/slock.c b/slock.c |
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@@ -67,10 +67,12 @@ getpw(void) { /* only run as root */ |
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errno = 0; |
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pw = getpwuid(getuid()); |
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- if (errno) |
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- die("slock: getpwuid: %s\n", strerror(errno)); |
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- else if (!pw) |
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- die("slock: cannot retrieve password entry (make sure to suid … |
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+ if (!pw) { |
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+ if (errno) |
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+ die("slock: getpwuid: %s\n", strerror(errno)); |
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+ else |
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+ die("slock: cannot retrieve password entry (make sure … |
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+ } |
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endpwent(); |
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rval = pw->pw_passwd; |
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