62 lines
2.3 KiB
Diff
62 lines
2.3 KiB
Diff
From c78eefc13562a8fc0c22c00a6d3001af89860258 Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Mon, 1 Jun 2020 17:08:38 +0200
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Subject: [PATCH] parse-util: allow '-0' as alternative to '0' and '+0'
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Let's allow "-0" as alternative to "+0" and "0" when parsing integers,
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unless the new SAFE_ATO_REFUSE_PLUS_MINUS flag is specified.
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In cases where allowing the +/- syntax shall not be allowed
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SAFE_ATO_REFUSE_PLUS_MINUS is the right flag to use, but this also means
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that -0 as only negative integer that fits into an unsigned value should
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be acceptable if the flag is not specified.
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Reference: https://github.com/systemd/systemd/commit/c78eefc13562a8fc0c22c00a6d3001af89860258
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Conflict: NA
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---
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src/basic/parse-util.c | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/src/basic/parse-util.c b/src/basic/parse-util.c
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index 15818958e4..7344dc4311 100644
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--- a/src/basic/parse-util.c
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+++ b/src/basic/parse-util.c
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@@ -392,7 +392,7 @@ int safe_atou_full(const char *s, unsigned base, unsigned *ret_u) {
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return -errno;
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if (!x || x == s || *x != 0)
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return -EINVAL;
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- if (s[0] == '-')
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+ if (l != 0 && s[0] == '-')
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return -ERANGE;
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if ((unsigned long) (unsigned) l != l)
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return -ERANGE;
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@@ -451,7 +451,7 @@ int safe_atollu_full(const char *s, unsigned base, long long unsigned *ret_llu)
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return -errno;
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if (!x || x == s || *x != 0)
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return -EINVAL;
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- if (*s == '-')
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+ if (l != 0 && s[0] == '-')
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return -ERANGE;
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if (ret_llu)
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@@ -493,7 +493,7 @@ int safe_atou8(const char *s, uint8_t *ret) {
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return -errno;
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if (!x || x == s || *x != 0)
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return -EINVAL;
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- if (s[0] == '-')
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+ if (l != 0 && s[0] == '-')
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return -ERANGE;
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if ((unsigned long) (uint8_t) l != l)
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return -ERANGE;
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@@ -530,7 +530,7 @@ int safe_atou16_full(const char *s, unsigned base, uint16_t *ret) {
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return -errno;
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if (!x || x == s || *x != 0)
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return -EINVAL;
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- if (s[0] == '-')
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+ if (l != 0 && s[0] == '-')
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return -ERANGE;
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if ((unsigned long) (uint16_t) l != l)
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return -ERANGE;
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--
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2.23.0
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