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From 663ac451b045b4823d6d633893a5d748c09f42f2 Mon Sep 17 00:00:00 2001
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From: Jan Kara <jack@suse.cz>
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Date: Wed, 1 Oct 2014 18:10:40 +0200
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Subject: [PATCH] Fix handling of space and inode values
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Commit 0214512479e0 (Properly handle signed space and inode values)
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broke parsing of pure numbers in str2number() so that it would always
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complain about "Integer overflow while interpreting decimal unit". Fix
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condition checking for overflow.
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Also number2str() was buggy and wouldn't guess proper units for negative
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numbers.
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Signed-off-by: Jan Kara <jack@suse.cz>
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Signed-off-by: Petr Písař <ppisar@redhat.com>
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---
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quotasys.c | 16 +++++++++-------
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1 file changed, 9 insertions(+), 7 deletions(-)
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diff --git a/quotasys.c b/quotasys.c
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index a5737a8..4b49e0e 100644
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--- a/quotasys.c
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+++ b/quotasys.c
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@@ -459,17 +459,19 @@ void number2str(long long num, char *buf, int format)
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int i;
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unsigned long long div;
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char suffix[8] = " kmgt";
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- long long anum = num >= 0 ? num : -num;
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- if (format)
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- for (i = 4, div = 1000000000000LL; i > 0; i--, div /= 1000)
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- if (num >= 100*div) {
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- int sign = num != anum ? -1 : 1;
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+ if (format) {
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+ long long anum = num >= 0 ? num : -num;
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+ int sign = num != anum ? -1 : 1;
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- sprintf(buf, "%lld%c", (num+div-1) / div * sign,
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+ for (i = 4, div = 1000000000000LL; i > 0; i--, div /= 1000)
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+ if (anum >= 100*div) {
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+ sprintf(buf, "%lld%c",
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+ DIV_ROUND_UP(anum, div) * sign,
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suffix[i]);
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return;
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}
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+ }
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sprintf(buf, "%lld", num);
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}
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@@ -500,7 +502,7 @@ const char *str2number(const char *string, qsize_t *inodes)
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return _("Unknown decimal unit. "
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"Valid units are k, m, g, t.");
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if (number > QSIZE_MAX / multiple ||
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- -number < QSIZE_MAX / multiple)
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+ number < -(QSIZE_MAX / multiple))
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return _("Integer overflow while interpreting decimal unit.");
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*inodes = number * multiple;
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return NULL;
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--
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1.9.3
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