Package: libc6 Version: 2.41-12 Severity: normal Tags: upstream Control: found -1 2.36-9+deb12u13 Control: found -1 2.43-7 Control: forwarded -1 https://sourceware.org/bugzilla/show_bug.cgi?id=22944
Dear Maintainer,
-- >8 --
#include <err.h>
#include <fts.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
int main(int, char * const * argv) {
errno = 0;
FTS * stream = fts_open(argv, FTS_PHYSICAL, nullptr);
for(FTSENT * ent; (ent = fts_read(stream));) {
printf("%zu: %s\n", strlen(ent->fts_path), ent->fts_info ==
FTS_NS ? "FTS_NS" :
ent->fts_info == FTS_D ? "FTS_D" :
ent->fts_info == FTS_DNR ? "FTS_DNR" :
ent->fts_info == FTS_DP ? "FTS_DP" :
ent->fts_info == FTS_F ? "FTS_F" :
ent->fts_info == FTS_SL ? "FTS_SL" :
ent->fts_info == FTS_SLNONE ? "FTS_SLNONE" :
ent->fts_info == FTS_DEFAULT ? "FTS_DEFAULT" :
ent->fts_info == FTS_ERR ? "FTS_ERR" :
ent->fts_info == FTS_DC ? "FTS_DC" :
ent->fts_info == FTS_DOT ? "FTS_DOT" :
ent->fts_info == FTS_NSOK ? "FTS_NSOK" :
"idk");
}
err(0, nullptr);
}
-- >8 --
when run as
mkdir -p $(yes a/ | head -n $((32 * 1024)) | tr -d '\n') && cc ftstest.c &&
./a.out a
tails out with
36615: FTS_D
36617: FTS_D
36619: FTS_D
36621: FTS_D
a.out: File name too long
(with s/a/qq/ it's after 36617). The correct tail ends like
(captured with musl and void-linux/musl-fts 1.2.7):
5: FTS_DP
3: FTS_DP
1: FTS_DP
a.out: No error information
Upstream commit 99303f387179332d64e5ee34a6b58e82a523bae5
(io: Use gnulib fts implementation (BZ 22944, BZ 20331)),
included in glibc 2.44, fixes this:
65529: FTS_D
65531: FTS_D
65533: FTS_D
65535: FTS_D
65535: FTS_DP
65533: FTS_DP
65531: FTS_DP
65529: FTS_DP
65527: FTS_DP
...
13: FTS_DP
11: FTS_DP
9: FTS_DP
7: FTS_DP
5: FTS_DP
3: FTS_DP
1: FTS_DP
a: Success
This bug appears equivalent to
https://sourceware.org/bugzilla/show_bug.cgi?id=22944
However, glibc 2.44 and trunk (46d325b68c1e49ad87b5e99a1ec9df5406350e31)
have a different bug when given absolute filenames in this case.
Best,
-- System Information:
Debian Release: trixie/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: x32 (x86_64)
Foreign Architectures: amd64, i386
Kernel: Linux 6.7.7-amd64 (SMP w/2 CPU threads; PREEMPT)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages libc6 depends on:
ii libgcc-s1 14.2.0-14
Versions of packages libc6 recommends:
ii libidn2-0 2.3.7-2+b1
Versions of packages libc6 suggests:
ii debconf [debconf-2.0] 1.5.89
pn glibc-doc <none>
ii libc-l10n 2.41-12
ii libnss-nis 3.1-5+b1
ii libnss-nisplus 1.3-5+b2
ii locales 2.41-12
-- debconf information excluded
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