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| author | Karel Zak | 2015-12-15 12:25:56 +0100 |
|---|---|---|
| committer | Karel Zak | 2015-12-15 12:33:34 +0100 |
| commit | f7ac9e71b18fa7314151f2ab65ee0bdd2ea89c07 (patch) | |
| tree | d089c7b2317441444ab356d17fb200286aa0a550 /include/c.h | |
| parent | Merge branch 'test-fixes' of https://github.com/rudimeier/util-linux (diff) | |
| download | kernel-qcow2-util-linux-f7ac9e71b18fa7314151f2ab65ee0bdd2ea89c07.tar.gz kernel-qcow2-util-linux-f7ac9e71b18fa7314151f2ab65ee0bdd2ea89c07.tar.xz kernel-qcow2-util-linux-f7ac9e71b18fa7314151f2ab65ee0bdd2ea89c07.zip | |
login, mount: fix __SC_GETPW_R_SIZE_MAX usage
sysconf(_SC_GETPW_R_SIZE_MAX) returns initial suggested size for pwd
buffer (see getpwnam_r man page or POSIX). This is not large enough in
some cases.
Yes, this sysconf option is misnamed (should be _SC_GETPW_R_SIZE_MIN).
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'include/c.h')
| -rw-r--r-- | include/c.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/c.h b/include/c.h index 2a317eb52..ca028baee 100644 --- a/include/c.h +++ b/include/c.h @@ -346,4 +346,13 @@ static inline int xusleep(useconds_t usec) # define UL_ASAN_BLACKLIST /* nothing */ #endif + + +/* + * Note that sysconf(_SC_GETPW_R_SIZE_MAX) returns *initial* suggested size for + * pwd buffer and in some cases it is not large enough. See POSIX and + * getpwnam_r man page for more details. + */ +#define UL_GETPW_BUFSIZ (16 * 1024) + #endif /* UTIL_LINUX_C_H */ |