Blame SOURCES/0079-strv-Make-sure-strv_make_nulstr-always-returns-a-val.patch
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From c59555a86d3fcd2b8d644885134e19fe864251e5 Mon Sep 17 00:00:00 2001
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From: Daan De Meyer <daan.j.demeyer@gmail.com>
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Date: Fri, 11 Nov 2022 11:26:54 +0100
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Subject: [PATCH] strv: Make sure strv_make_nulstr() always returns a valid
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nulstr
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strv_make_nulstr() is documented to always return a valid nulstr,
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but if the input is `NULL` we return a string terminated with only
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a single NUL terminator, so let's fix that and always terminate the
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resulting string with two NUL bytes.
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(cherry picked from commit 5ea173a91b2093664a9ebb9add678edd6f5d1efd)
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Related: #2138081
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---
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src/basic/strv.c | 6 ++----
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1 file changed, 2 insertions(+), 4 deletions(-)
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diff --git a/src/basic/strv.c b/src/basic/strv.c
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index eea34ca68d..24fc56a1a5 100644
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--- a/src/basic/strv.c
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+++ b/src/basic/strv.c
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@@ -721,7 +721,7 @@ int strv_make_nulstr(char * const *l, char **ret, size_t *ret_size) {
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}
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if (!m) {
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- m = new0(char, 1);
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+ m = new0(char, 2);
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if (!m)
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return -ENOMEM;
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n = 1;
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@@ -730,11 +730,9 @@ int strv_make_nulstr(char * const *l, char **ret, size_t *ret_size) {
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m[n] = '\0';
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assert(n > 0);
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- *ret = m;
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+ *ret = TAKE_PTR(m);
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*ret_size = n - 1;
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- m = NULL;
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-
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return 0;
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}
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