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nuttx/libs/libc/grp
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Alan Carvalho de Assis 3635004dcd libs/libc/grp: fix getgrbuf_r() pointer-alignment padding 
padlen = sizeof(void *) - (addr % sizeof(void *)) never returns 0, even
when addr is already pointer-aligned -- it returns a full alignment unit
instead. Since callers size buflen for zero padding, the subsequent
"buflen < padlen + reqdlen" check then always fails, so getgrgid()/
getgrnam() and their _r variants always return ERANGE.

Found via `id` on sim:toybox, which resolves gid 0 to "root" through
this path.

Signed-off-by: Alan C. Assis <acassis@gmail.com>
Assisted-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-14 10:20:52 +08:00
..
CMakeLists.txt libc/grp: add getgrouplist() 2026-06-23 23:09:22 +08:00
Kconfig
lib_find_grpfile.c sched: add supplementary group IDs (setgroups/getgroups/initgroups) 2026-08-12 16:06:03 -03:00
lib_getgrbuf.c libs/libc: migrate to SPDX identifier 2024-10-01 12:25:52 +08:00
lib_getgrbufr.c libs/libc/grp: fix getgrbuf_r() pointer-alignment padding 2026-08-14 10:20:52 +08:00
lib_getgrgid.c libs/libc: migrate to SPDX identifier 2024-10-01 12:25:52 +08:00
lib_getgrgidr.c libs/libc: migrate to SPDX identifier 2024-10-01 12:25:52 +08:00
lib_getgrnam.c libs/libc: migrate to SPDX identifier 2024-10-01 12:25:52 +08:00
lib_getgrnamr.c libs/libc: migrate to SPDX identifier 2024-10-01 12:25:52 +08:00
lib_getgrouplist.c libc/grp: add getgrouplist() 2026-06-23 23:09:22 +08:00
lib_grp.h libc/grp: add getgrouplist() 2026-06-23 23:09:22 +08:00
lib_grp_globals.c libs/libc: migrate to SPDX identifier 2024-10-01 12:25:52 +08:00
lib_initgroups.c sched: add supplementary group IDs (setgroups/getgroups/initgroups) 2026-08-12 16:06:03 -03:00
Make.defs libc/grp: add getgrouplist() 2026-06-23 23:09:22 +08:00