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https://codeberg.org/libreboot/lbmk.git
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e9a910b33c
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 <leah@libreboot.org>
76 lines
1.4 KiB
C
76 lines
1.4 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <grp.h>
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#include <unistd.h>
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#include "fs.h"
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#include "util.h"
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static int hflag = 0;
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static gid_t gid = -1;
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static int ret = 0;
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static void
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chgrp(int dirfd, const char *name, struct stat *st, void *data, struct recursor *r)
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{
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int flags = 0;
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if ((r->maxdepth == 0 && r->follow == 'P') || (r->follow == 'H' && r->depth) || (hflag && !(r->depth)))
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flags |= AT_SYMLINK_NOFOLLOW;
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if (fchownat(dirfd, name, -1, gid, flags) < 0) {
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weprintf("chown %s:", r->path);
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ret = 1;
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} else if (S_ISDIR(st->st_mode)) {
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recurse(dirfd, name, NULL, r);
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}
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}
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static void
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usage(void)
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{
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eprintf("usage: %s [-h] [-R [-H | -L | -P]] group file ...\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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struct group *gr;
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struct recursor r = { .fn = chgrp, .maxdepth = 1, .follow = 'P' };
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ARGBEGIN {
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case 'h':
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hflag = 1;
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break;
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case 'R':
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r.maxdepth = 0;
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break;
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case 'H':
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case 'L':
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case 'P':
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r.follow = ARGC();
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break;
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default:
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usage();
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} ARGEND
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if (argc < 2)
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usage();
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errno = 0;
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if ((gr = getgrnam(argv[0]))) {
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gid = gr->gr_gid;
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} else {
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if (errno)
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eprintf("getgrnam %s:", argv[0]);
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gid = estrtonum(argv[0], 0, UINT_MAX);
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}
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for (argc--, argv++; *argv; argc--, argv++)
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recurse(AT_FDCWD, *argv, NULL, &r);
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return ret || recurse_status;
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}
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