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author | Laurent Bercot <ska-skaware@skarnet.org> | 2023-02-12 01:36:13 +0000 |
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committer | Laurent Bercot <ska@appnovation.com> | 2023-02-12 01:36:13 +0000 |
commit | 4d41f0d5e871b86b8f56339a99cfb1b80fbb420c (patch) | |
tree | 0446c51aeb07d8ef817fe3cdc53955dc7fe3a09d /src/libs6ps/s6ps_grcache.c | |
parent | 2f8984613e17f9e5971ec338240b0bb6d2dd1cc6 (diff) | |
download | s6-linux-utils-4d41f0d5e871b86b8f56339a99cfb1b80fbb420c.tar.gz s6-linux-utils-4d41f0d5e871b86b8f56339a99cfb1b80fbb420c.tar.xz s6-linux-utils-4d41f0d5e871b86b8f56339a99cfb1b80fbb420c.zip |
Deglobalize s6-ps
Signed-off-by: Laurent Bercot <ska@appnovation.com>
Diffstat (limited to 'src/libs6ps/s6ps_grcache.c')
-rw-r--r-- | src/libs6ps/s6ps_grcache.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/libs6ps/s6ps_grcache.c b/src/libs6ps/s6ps_grcache.c new file mode 100644 index 0000000..49d84e5 --- /dev/null +++ b/src/libs6ps/s6ps_grcache.c @@ -0,0 +1,47 @@ +/* ISC license. */ + +#include <stdint.h> +#include <grp.h> +#include <errno.h> + +#include <skalibs/types.h> +#include <skalibs/stralloc.h> +#include <skalibs/genalloc.h> +#include <skalibs/skamisc.h> +#include <skalibs/avltree.h> + +#include "s6ps.h" +#include "s6ps-internal.h" + +int s6ps_grcache_lookup (s6ps_cache_t *cache, stralloc *sa, gid_t gid) +{ + dius_t d = { .left = (uint32_t)gid, .right = satmp.len } ; + uint32_t i ; + if (!avltree_search(&cache->tree, &d.left, &i)) + { + struct group *gr ; + size_t n = genalloc_len(dius_t, &cache->index) ; + errno = 0 ; + gr = getgrgid(gid) ; + if (!gr) + { + if (errno) return 0 ; + if (!stralloc_readyplus(&satmp, UINT_FMT + 2)) return 0 ; + stralloc_catb(&satmp, "(", 1) ; + satmp.len += uint_fmt(satmp.s + satmp.len, gid) ; + stralloc_catb(&satmp, ")", 2) ; + } + else if (!stralloc_cats(&satmp, gr->gr_name) || !stralloc_0(&satmp)) return 0 ; + if (!genalloc_append(dius_t, &cache->index, &d)) goto err ; + if (!avltree_insert(&cache->tree, n)) + { + genalloc_setlen(dius_t, &cache->index, n) ; + goto err ; + } + i = n ; + } + return stralloc_cats(sa, satmp.s + genalloc_s(dius_t, &cache->index)[i].right) ; + err: + satmp.len = d.right ; + return 0 ; +} |