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From c103428e24f002e495412a5f9a0b919f4b92c2b7 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
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Date: Mon, 21 Nov 2022 20:06:55 +0100
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Subject: [PATCH] basic/strv: check printf arguments to strv_extendf()
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The second argument to _printf_() specifies where the arguments start. We need to
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use 0 in two cases: when the args in a va_list and can't be checked, and with journald
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logging functions which accept multiple format strings with multiple argument sets,
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which the _printf_ checker does not understand. But strv_extendf() can be checked.
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(cherry picked from commit 400102ec91aa3404848a04f49a43d49e1a181708)
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Related: #2138081
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---
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src/basic/strv.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/basic/strv.h b/src/basic/strv.h
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index d6f5ac6ba5..6c9fa47943 100644
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--- a/src/basic/strv.h
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+++ b/src/basic/strv.h
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@@ -45,7 +45,7 @@ static inline int strv_extend(char ***l, const char *value) {
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return strv_extend_with_size(l, NULL, value);
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}
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-int strv_extendf(char ***l, const char *format, ...) _printf_(2,0);
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+int strv_extendf(char ***l, const char *format, ...) _printf_(2,3);
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int strv_extend_front(char ***l, const char *value);
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int strv_push_with_size(char ***l, size_t *n, char *value);
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