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Fix one more truncated stream detection bug.

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This fixes a false negative that has been there since 1.2.4.
This commit is contained in:
Mark Adler
2026-09-20 20:24:20 -07:00
parent 930cdf0770
commit ec63cd60eb
1 changed files with 8 additions and 2 deletions
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10
gzread.c
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@@ -302,8 +302,11 @@ local int gz_skip(gz_statep state) {
}
/* output buffer empty -- return if we're at the end of the input */
else if (state->eof && state->strm.avail_in == 0)
else if (state->eof && state->strm.avail_in == 0) {
if (state->how == GZIP && state->err == Z_OK)
gz_error(state, Z_BUF_ERROR, "unexpected end of file");
break;
}
/* need more data to skip -- load up output buffer */
else {
@@ -356,8 +359,11 @@ local z_size_t gz_read(gz_statep state, voidp buf, z_size_t len) {
}
/* output buffer empty -- return if we're at the end of the input */
else if (state->eof && state->strm.avail_in == 0)
else if (state->eof && state->strm.avail_in == 0) {
if (state->how == GZIP && state->err == Z_OK)
gz_error(state, Z_BUF_ERROR, "unexpected end of file");
break;
}
/* need output data -- for small len or new stream load up our output
buffer, so that gzgetc() can be fast */