34 lines
899 B
Diff
34 lines
899 B
Diff
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From f33b17585058381491e6fda08f491b8e48c7980c Mon Sep 17 00:00:00 2001
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From: Rich Felker <dalias@aerifal.cx>
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Date: Thu, 20 Oct 2016 13:22:20 -0400
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Subject: fix gratuitous undefined behavior in strptime
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accessing an object of type const char *restrict as if it had type
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char * is not defined.
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---
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src/time/strptime.c | 9 +++++++--
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1 file changed, 7 insertions(+), 2 deletions(-)
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diff --git a/src/time/strptime.c b/src/time/strptime.c
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index f41f55f..55c7ed1 100644
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--- a/src/time/strptime.c
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+++ b/src/time/strptime.c
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@@ -22,8 +22,13 @@ char *strptime(const char *restrict s, const char *restrict f, struct tm *restri
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}
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f++;
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if (*f == '+') f++;
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- if (isdigit(*f)) w=strtoul(f, (void *)&f, 10);
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- else w=-1;
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+ if (isdigit(*f)) {
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+ char *new_f;
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+ w=strtoul(f, &new_f, 10);
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+ f = new_f;
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+ } else {
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+ w=-1;
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+ }
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adj=0;
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switch (*f++) {
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case 'a': case 'A':
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--
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