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authorMark Johnston <markj@FreeBSD.org>2026-05-20 16:39:40 +0000
committerDag-Erling Smørgrav <des@FreeBSD.org>2026-05-27 13:10:57 +0000
commitbd15d6ef126ee4c0eac931117f6bbbf6f9a3fc72 (patch)
tree5892a977c6662675b0c63a9c3bd56e01456ce27c
parente9346d1d1383e8c1dced50a3aceb28edd5a4a5e2 (diff)
libarchive: Force GNU iconv compatibility on FreeBSD
When libarchive is compiled with FreeBSD's native iconv instead of libiconv, as happens with libarchive in the base system, we need to configure iconv(3) to handle invalid sequences by returning -1, as iconv_strncat_in_locale() assumes GNU iconv semantics. This corresponds to upstream PR 3056. PR: 294577 MFC after: 1 week
-rw-r--r--contrib/libarchive/libarchive/archive_string.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/contrib/libarchive/libarchive/archive_string.c b/contrib/libarchive/libarchive/archive_string.c
index c6ae8968d54f..4fb96a9fa178 100644
--- a/contrib/libarchive/libarchive/archive_string.c
+++ b/contrib/libarchive/libarchive/archive_string.c
@@ -1314,7 +1314,17 @@ create_sconv_object(const char *fc, const char *tc,
else if (strcmp(fc, "CP932") == 0)
sc->cd = iconv_open(tc, "SJIS");
}
-#if defined(_WIN32) && !defined(__CYGWIN__)
+#if defined(__FreeBSD__) && !defined(HAVE_LIBICONV)
+ /*
+ * FreeBSD's native iconv() by default returns the number of
+ * invalid characters in the input string, as specified by
+ * POSIX, but iconv_strncat_in_locale() assumes GNU iconv
+ * semantics.
+ */
+ int v = 1;
+
+ (void)iconvctl(sc->cd, ICONV_SET_ILSEQ_INVALID, &v);
+#elif defined(_WIN32) && !defined(__CYGWIN__)
/*
* archive_mstring on Windows directly convert multi-bytes
* into archive_wstring in order not to depend on locale