From d259e194df12569c8fe286eacd285be28118ecd7 Mon Sep 17 00:00:00 2001 From: CoprDistGit Date: Sat, 7 Nov 2026 06:22:11 +0000 Subject: automatic import of zlib --- ...gzungetc-is-used-immediately-after-gzopen.patch | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 backport-Fix-bug-when-gzungetc-is-used-immediately-after-gzopen.patch (limited to 'backport-Fix-bug-when-gzungetc-is-used-immediately-after-gzopen.patch') diff --git a/backport-Fix-bug-when-gzungetc-is-used-immediately-after-gzopen.patch b/backport-Fix-bug-when-gzungetc-is-used-immediately-after-gzopen.patch new file mode 100644 index 0000000..a6b892e --- /dev/null +++ b/backport-Fix-bug-when-gzungetc-is-used-immediately-after-gzopen.patch @@ -0,0 +1,26 @@ +From 7dd6aa72455ef1f2aacdc28a00d1eaf632d59593 Mon Sep 17 00:00:00 2001 +From: Mark Adler +Date: Fri, 11 Aug 2023 10:59:03 -0700 +Subject: [PATCH] Fix bug when gzungetc() is used immediately after gzopen(). + +Reference:https://github.com/madler/zlib/commit/7dd6aa72455ef1f2aacdc28a00d1eaf632d59593 +Conflict:NA +--- + gzread.c | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/gzread.c b/gzread.c +index 6034a2823..4168cbc88 100644 +--- a/gzread.c ++++ b/gzread.c +@@ -443,6 +443,10 @@ int ZEXPORT gzungetc(int c, gzFile file) { + return -1; + state = (gz_statep)file; + ++ /* in case this was just opened, set up the input buffer */ ++ if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0) ++ (void)gz_look(state); ++ + /* check that we're reading and that there's no (serious) error */ + if (state->mode != GZ_READ || + (state->err != Z_OK && state->err != Z_BUF_ERROR)) -- cgit v1.2.3