From e9a910b33c7837b4b868e3abda18eb4810df7f02 Mon Sep 17 00:00:00 2001 From: Leah Rowe Date: Sat, 4 Oct 2025 09:14:33 +0100 Subject: config/git: import suckless sbase i currently use the output of sha512sum in several places of xbmk, which is a bit unreliable in case output changes. other cases where i use util outputs in variables are probably reliable, because i'm using mostly posix utilities in those. to mitigate this, i now import suckless sbase, which has a reasonable sha512sum implementation. *every* binary it builds is being placed in build.list, because i'll probably start using more of them. for example, i may start modifying the "date" implementation, adding the GNU-specific options that i need as mentioned on init.sh i'm importing it in util/ because the sha512sum util is needed for verifying project sources, so if sbase itself is a "project source", that means we can into a chicken and egg bootstrapping problem. this is sbase at revision: 055cc1ae1b3a13c3d8f25af0a4a3316590efcd48 Signed-off-by: Leah Rowe --- util/sbase/chgrp.c | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 util/sbase/chgrp.c (limited to 'util/sbase/chgrp.c') diff --git a/util/sbase/chgrp.c b/util/sbase/chgrp.c new file mode 100644 index 00000000..4042a0dd --- /dev/null +++ b/util/sbase/chgrp.c @@ -0,0 +1,75 @@ +/* See LICENSE file for copyright and license details. */ +#include + +#include +#include +#include +#include + +#include "fs.h" +#include "util.h" + +static int hflag = 0; +static gid_t gid = -1; +static int ret = 0; + +static void +chgrp(int dirfd, const char *name, struct stat *st, void *data, struct recursor *r) +{ + int flags = 0; + + if ((r->maxdepth == 0 && r->follow == 'P') || (r->follow == 'H' && r->depth) || (hflag && !(r->depth))) + flags |= AT_SYMLINK_NOFOLLOW; + if (fchownat(dirfd, name, -1, gid, flags) < 0) { + weprintf("chown %s:", r->path); + ret = 1; + } else if (S_ISDIR(st->st_mode)) { + recurse(dirfd, name, NULL, r); + } +} + +static void +usage(void) +{ + eprintf("usage: %s [-h] [-R [-H | -L | -P]] group file ...\n", argv0); +} + +int +main(int argc, char *argv[]) +{ + struct group *gr; + struct recursor r = { .fn = chgrp, .maxdepth = 1, .follow = 'P' }; + + ARGBEGIN { + case 'h': + hflag = 1; + break; + case 'R': + r.maxdepth = 0; + break; + case 'H': + case 'L': + case 'P': + r.follow = ARGC(); + break; + default: + usage(); + } ARGEND + + if (argc < 2) + usage(); + + errno = 0; + if ((gr = getgrnam(argv[0]))) { + gid = gr->gr_gid; + } else { + if (errno) + eprintf("getgrnam %s:", argv[0]); + gid = estrtonum(argv[0], 0, UINT_MAX); + } + + for (argc--, argv++; *argv; argc--, argv++) + recurse(AT_FDCWD, *argv, NULL, &r); + + return ret || recurse_status; +} -- cgit v1.2.1