Paths are truncated to early when `pathconf` is available

[Flamefire]

I'm doing a wget --mirror operation on a fairly long URL (including the host folder ~ 242 chars) into another folder via --outdir adding another couple of chars.

This runs into the length limitation at

wget/src/url.c

Line 1523 in 9a35fe6

if (max_length > 0 && outlen > max_length)

However I think that limitation is to aggressive/sensitive: It takes the entire quoted path (i.e. at least the 242 chars) and compares it against pathconf(..., _PC_NAME_MAX) when that is available. See

wget/src/utils.c

Lines 2665 to 2671 in 9a35fe6

	#if HAVE_PATHCONF
	ret = pathconf (*p ? p : ".", name);
	if (!(ret < 0 && errno == ENOENT))
	break;
	#else
	ret = PATH_MAX;
	#endif

Note that the _PC_NAME_MAX returns the maximum length for a filename while PATH_MAX is the maximum length of a path. The former is 255 while the latter is 4096 on "usual" Linux systems. So the 2 code paths are not nearly identical!

Given that the "chomp buffer" size (19) is additionally subtracted any output path is truncated at 255-19=236 chars which isn't enough for use-cases such as mine mirroring a larger hierarchy of folders (files in depth of 10 folders)