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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Martin Wilck <mwilck@suse.com>
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Date: Tue, 12 May 2020 00:39:27 +0200
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Subject: [PATCH] libmultipath: set_uint: fix parsing for 32bit
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On architectures where sizeof(long) == sizeof(int), the code wouldn't
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work as intended. Use strtoul instead. As strtoul happily parses
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negative numbers as input, require the number to begin with a digit.
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Signed-off-by: Martin Wilck <mwilck@suse.com>
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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libmultipath/dict.c | 11 +++++++----
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1 file changed, 7 insertions(+), 4 deletions(-)
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diff --git a/libmultipath/dict.c b/libmultipath/dict.c
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index 3e25e74f..0e9ea387 100644
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--- a/libmultipath/dict.c
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+++ b/libmultipath/dict.c
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@@ -60,19 +60,22 @@ static int
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set_uint(vector strvec, void *ptr)
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{
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unsigned int *uint_ptr = (unsigned int *)ptr;
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- char *buff, *eptr;
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- long res;
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+ char *buff, *eptr, *p;
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+ unsigned long res;
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int rc;
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buff = set_value(strvec);
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if (!buff)
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return 1;
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- res = strtol(buff, &eptr, 10);
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+ p = buff;
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+ while (isspace(*p))
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+ p++;
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+ res = strtoul(p, &eptr, 10);
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if (eptr > buff)
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while (isspace(*eptr))
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eptr++;
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- if (*buff == '\0' || *eptr != '\0' || res < 0 || res > UINT_MAX) {
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+ if (*buff == '\0' || *eptr != '\0' || !isdigit(*p) || res > UINT_MAX) {
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condlog(1, "%s: invalid value for %s: \"%s\"",
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__func__, (char*)VECTOR_SLOT(strvec, 0), buff);
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rc = 1;
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--
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2.17.2
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