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BTG reading: don’t crash on empty error message

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Sentry-Id:FLIGHTGEAR-WA8
This commit is contained in:
James Turner
2021-07-15 08:43:31 +01:00
parent a9dddbcddc
commit cde75530fe
1 changed files with 3 additions and 1 deletions
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simgear/io/lowlevel.cxx
+3 -1
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@@ -48,9 +48,11 @@ static std::string gzErrorMessage(gzFile fd)
if (errNum == Z_ERRNO) { if (errNum == Z_ERRNO) {
return simgear::strutils::error_string(errno); return simgear::strutils::error_string(errno);
} else { } else if (gzMsg) {
return {gzMsg}; return {gzMsg};
} }
return {"GZError: no string code for code:" + std::to_string(errNum)};
} }
void sgReadChar ( gzFile fd, char *var ) void sgReadChar ( gzFile fd, char *var )