Commit Graph

3547 Commits

Author SHA1 Message Date
Alejandro Colomar
3c09e40a1f lib/utmp.c: Use XSTRNDUP() instead of its pattern
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
2a0c0dd24b lib/string/strdup/: XSTRNDUP(), STRNDUPA(): Add macros
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
9a9faf86f0 lib/string/strcpy/strncat.[ch]: STRNCAT(): Add macro
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
d9923431eb src/: Use xasprintf() instead of its pattern
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
44ba094766 src/groupmems.c: Fix number of elements in allocation
We are setting `sgrent.sg_adm[1] = NULL;`, so we need 2 elements.

Fixes: 87b56b19fb ("* NEWS, src/groupmems.c, man/groupmems.8.xml: Added support for [...]")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
c287317075 lib/gshadow.c: build_list(): Fix REALLOC() nmemb calculation
Fixes: efbbcade43 ("Use safer allocation macros")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
056f1d03ee lib/gshadow.c: build_list(): Fix forever loop on ENOMEM
Before this patch, the function looped while (s != NULL && *s != '\0').
However, nothing was modifying that string if REALLOC() failed, so the
loop was forever.

Fixes: 8e167d28af ("[svn-upgrade] Integrating new upstream version, shadow (4.0.8)")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
16cb664865 lib/, src/: Use strsep(3) instead of its pattern
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
8176e309ed src/useradd.c: tallylog_reset(): Use Basename() instead of its pattern
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
964df6ed6e lib/, src/: Use strchrnul(3) instead of its pattern
In the files where #include <string.h> is missing, add it, and sort the
includes.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
077f7b6ade lib/commonio.c: commonio_open(): MALLOC() and REALLOCF() already set ENOMEM
We don't need to set ENOMEM on failure of those functions.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
d611d1a947 lib/: Use REALLOCF() instead of its pattern
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
23663a1607 lib/, src/: Add missing include
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
bdf00dca44 lib/failure.c: failprint(): Remove dead code
This should have gone into the #else'd branch in 8451bed8b0, and
should have been removed in 3e602b58a2.

Fixes: 8451bed8b0 ("[svn-upgrade] Integrating new upstream version, shadow (4.0.13)")
Fixes: 3e602b58a2 ("Remove HAVE_STRFTIME ifdefs")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
bfb6aad7cb lib/, src/: Always pass NULL to time(2)
See time(2):

BUGS
     Error returns from this system  call  are  indistinguishable  from
     successful  reports  that  the  time  is  a few seconds before the
     Epoch, so the C library wrapper function never sets errno as a re‐
     sult of this call.

     The tloc argument is obsolescent and should always be NULL in  new
     code.  When tloc is NULL, the call cannot fail.

Fixes: 45c6603cc8 ("[svn-upgrade] Integrating new upstream version, shadow (19990709)")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
761eb07016 lib/getdate.y: NULL doesn't need a cast
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
2cb3deec72 lib/shadow.c: my_sgetspent(): Clarify that we're assigning an empty string
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
5e11e89fd9 lib/, src/: Reduce scope of local variables
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
847a19e7a3 src/login.c: Remove dead code
The functions that set these strings --do_rlogin() and login_prompt()--
make sure to terminate them with a NUL.

Fixes: 3704745289 ("* lib/defines.h: Define USER_NAME_MAX_LENGTH, based on utmp and [...]")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
e5d40a1863 src/logoutd.c: Remove unused variable
wait(2) accepts NULL if the status won't be read.  Simplify.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
89402f5171 src/su.c: save_caller_context(): Remove unused parameter
Fixes: e6c2e43937 ("Hardcoding Prog to known value")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
40ab806066 lib/string/strcpy/, lib/, src/, tests/: Move all copying APIs to a subdirectory
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
22272347b6 lib/string/sprintf/, lib/, src/, tests/: Move all sprintf(3)-like APIs to a subdirectory
And have a separate file for each pair of APIs.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-07-01 21:40:11 -05:00
Alejandro Colomar
89e4be3957 src/get_subid_owners.c: Use uid_t for holding UIDs (and GIDs)
Suggested-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
1f7c00b8f7 src/usermod.c: Fix const correctness
Now that we use liba2i's const-generic macros, we can (and must) use a
'const char **' endp where the input string is 'const char *'.

Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
7f3ab84714 lib/limits.c: setrlimit_value(): Reimplement in terms of a2i()
Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
7f86f893ab lib/, po/, src/: get_uid(): Move function to "atoi/getnum.h"
Implement it as an inline function, and add restrict and ATTR_STRING()
and ATTR_ACCESS() as appropriate.

Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
6093c93e81 lib/get_uid.c: get_uid(): Reimplement in terms of a2i()
Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
8ad2768472 src/usermod.c: getulong_range(): Reimplement in terms of a2ul()
Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
b198c1e782 lib/get_pid.c: get_pidfd_from_fd(): Don't open-code get_fd()
Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
a80715448b lib/atoi/getnum.[ch]: get_fd(): Add function for parsing a file descriptor from a string
Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
1557fac0a5 lib/: get_pid(): Move function to "atoi/getnum.h"
Implement it as an inline function, and add restrict and ATTR_STRING()
and ATTR_ACCESS() as appropriate.

Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
6fd56468c3 lib/get_pid.c: get_pid(): Reimplement in terms of a2i()
Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
509e3bcbf8 lib/: Don't open-code get_gid()
These functions were open-coding get_gid().  Use the actual function.

Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
f85a07f140 lib/, libsubid/, po/, src/: get_gid(): Move function to "atoi/getnum.h"
Implement it as an inline function, and add restrict and ATTR_STRING()
and ATTR_ACCESS() as appropriate.

Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
74a2ed4537 lib/get_gid.c: get_gid(): Reimplement in terms of a2i()
Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
678c2a23ee src/: Use str2[u]l() instead of atoi(3)
atoi(3) easily triggers Undefined Behavior.  Replace it by str2[u]l(),
which are safe from that, and add type safety too.

Reviewed-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
24695e6f38 tests/unit/test_typetraits.c: Add tests for typetraits.h macros
Suggested-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Alejandro Colomar
500ec3f8f3 lib/typetraits.h: Add macros that give information about a type
In the case of is_unsigned() and is_signed(), the natural thing would be
to compare to 0:

	#define is_unsigned(x)  (((typeof(x)) -1) > 0)
	#define is_signed(x)    (((typeof(x)) -1) < 0)

However, that would trigger -Wtype-limits, so we compare against 1,
which silences that, and does the same job.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-29 20:00:18 +02:00
Serge Hallyn
2457fc7c6b tests/run_some: make sure unshared root user can descend build dir
This was causing errors in my local testing in vms.

Signed-off-by: Serge Hallyn <serge@hallyn.com>
2024-06-28 14:45:25 -05:00
Alejandro Colomar
488bf4a519 Makefile.am: Use 'dist-hook' to clean up <tests/unit/Makefile>
Closes: <https://github.com/shadow-maint/shadow/issues/1027>
Reported-by: Chris Hofstaedtler <zeha@debian.org>
Cc: Iker Pedrosa <ipedrosa@redhat.com>
Co-developed-by: Serge Hallyn <shallyn@cisco.com>
Signed-off-by: Serge Hallyn <shallyn@cisco.com>
Co-developed-by: Alejandro Colomar <alx@kernel.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-28 09:37:27 -05:00
Serge Hallyn
75ea679799 have_range: open the subid db if needed
When we run for instance

  check_subid_range ubuntu u 100000 65536

when ubuntu user is defined and has that range, it returns no entries
because the subid db is not opened.  Open it in have_range if needed.

I haven't figured out why this ever worked.

Signed-off-by: Serge Hallyn <serge@hallyn.com>
2024-06-28 16:16:33 +02:00
Serge Hallyn
81b5b26925 libsubid test makefile: fix a typo
Fix a missing space after the -I path

Signed-off-by: Serge Hallyn <serge@hallyn.com>
2024-06-28 16:16:33 +02:00
Alejandro Colomar
6e57238bf9 tests/unit/test_xasprintf.c: Fix use of volatile pointer
volatile needs to be casted away behind a [[gnu::noipa]] function, to
make that invisible to the compiler.  Otherwise, the compiler can see
that it is being discarded, and is free to abuse Undefined Behavior.

Closes: <https://github.com/shadow-maint/shadow/issues/1028>
Reported-by: Chris Hofstaedtler <zeha@debian.org>
Tested-by: Chris Hofstaedtler <zeha@debian.org>
Reviewed-by: Chris Hofstaedtler <zeha@debian.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-28 08:57:01 -05:00
Alejandro Colomar
3307a8f4f0 tests/unit/test_xasprintf.c: Cosmetic
This is in preparation for the following commit.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-28 08:57:01 -05:00
Serge Hallyn
d55367bb16 tests/: Support run_some from exported tarball
common/config.sh currently tries to find the top directory by looking
for .git.  There are also many places under tests/ where we use
hard-coded ../../.. to find things like ${TOP_DIR}/lib.

We don't actually ship the tests with 'make dist'.  So we will
be exporting tests/ as a separate tarball.  In particular, I want
to then import this in the debian package.  However, there it will
be under shadow.git/debian/tests, not shadow.git/tests.

To support this, accept the environment variable BUILD_BASE_DIR,
which should point to shadow.git.

An alternative would be to move the tests to their own git
tree.  However, keeping tests in separate git tree tends to
lead to repos getting out of sync.  And we'd still need to accept
something like BUILD_BASE_DIR.

Note there are a lot of tests under run-all, which I'm not converting
as they currently are not being run in CI, so I'm more likely to
break something.

Changelog:
  2024 05 26: Incorporate feedback from alejandro-colomar

Link: <https://salsa.debian.org/debian/shadow/-/merge_requests/21>
Link: <https://salsa.debian.org/debian/shadow/-/merge_requests/22>
Cc: Chris Hofstaedtler <zeha@debian.org>
Signed-off-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-26 23:59:07 +02:00
Alejandro Colomar
47edcd3045 lib/csrand.c: Fix the lower part of the domain of csrand_uniform()
I accidentally broke this code during an un-optimization.  We need to
start from a random value of the width of the limit, that is, 32 bits.

Thanks to Jason for pointing to his similar code in the kernel, which
made me see my mistake.

Fixes: 2a61122b5e ("Unoptimize the higher part of the domain of csrand_uniform()")
Closes: <https://github.com/shadow-maint/shadow/issues/1015>
Reported-by: Michael Brunnbauer <https://github.com/michaelbrunnbauer>
Link: <https://git.zx2c4.com/linux-rng/tree/drivers/char/random.c#n535>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>
Link: <https://github.com/shadow-maint/shadow/pull/638>
Link: <https://github.com/shadow-maint/shadow/issues/634>
Link: <https://github.com/shadow-maint/shadow/pull/624>
Tested-by: Michael Brunnbauer <https://github.com/michaelbrunnbauer>
Reviewed-by: Michael Brunnbauer <https://github.com/michaelbrunnbauer>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
2024-06-20 21:38:58 -05:00
Serge Hallyn
cde08e422d configure.ac: release 4.16.0
Signed-off-by: Serge Hallyn <serge@hallyn.com>
4.16.0
2024-06-18 16:34:10 -05:00
Serge Hallyn
2df2c35bad release 4.16.0-rc1
Signed-off-by: Serge Hallyn <serge@hallyn.com>
4.16.0-rc1
2024-06-13 21:24:10 -05:00
Serge Hallyn
9b7d786b6f configure.ac: specify tar-pax to avoid 99 char filename limit
Signed-off-by: Serge Hallyn <serge@hallyn.com>
2024-06-13 21:24:10 -05:00