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-rw-r--r--toys/posix/chgrp.c174
1 files changed, 86 insertions, 88 deletions
diff --git a/toys/posix/chgrp.c b/toys/posix/chgrp.c
index 48ce6751..ed2ff9b2 100644
--- a/toys/posix/chgrp.c
+++ b/toys/posix/chgrp.c
@@ -1,6 +1,4 @@
-/* vi: set sw=4 ts=4:
- *
- * chown.c - Change ownership
+/* chgrp.c - Change user and group ownership
*
* Copyright 2012 Georgi Chorbadzhiyski <georgi@unixsol.org>
*
@@ -13,103 +11,103 @@ USE_CHGRP(NEWTOY(chgrp, "<2hPLHRfv", TOYFLAG_BIN))
USE_CHGRP(OLDTOY(chown, chgrp, "<2hPLHRfv", TOYFLAG_BIN))
config CHGRP
- bool "chgrp/chown"
- default y
- help
- usage: chown [-RHLP] [-fvh] [owner][:group] file...
- usage: chgrp [-RHLP] [-fvh] group file...
-
- Change ownership of one or more files.
-
- -f suppress most error messages.
- -h change symlinks instead of what they point to
- -R recurse into subdirectories (implies -h).
- -H with -R change target of symlink, follow command line symlinks
- -L with -R change target of symlink, follow all symlinks
- -P with -R change symlink, do not follow symlinks (default)
- -v verbose output.
+ bool "chgrp/chown"
+ default y
+ help
+ usage: chown [-RHLP] [-fvh] [owner][:group] file...
+ usage: chgrp [-RHLP] [-fvh] group file...
+
+ Change ownership of one or more files.
+
+ -f suppress most error messages.
+ -h change symlinks instead of what they point to
+ -R recurse into subdirectories (implies -h).
+ -H with -R change target of symlink, follow command line symlinks
+ -L with -R change target of symlink, follow all symlinks
+ -P with -R change symlink, do not follow symlinks (default)
+ -v verbose output.
*/
#define FOR_chgrp
#include "toys.h"
GLOBALS(
- uid_t owner;
- gid_t group;
- char *owner_name, *group_name;
- int symfollow;
+ uid_t owner;
+ gid_t group;
+ char *owner_name, *group_name;
+ int symfollow;
)
static int do_chgrp(struct dirtree *node)
{
- int fd, ret, flags = toys.optflags;
-
- // Depth first search
- if (!dirtree_notdotdot(node)) return 0;
- if ((flags & FLAG_R) && node->data != -1 && S_ISDIR(node->st.st_mode))
- return DIRTREE_COMEAGAIN|((flags&FLAG_L) ? DIRTREE_SYMFOLLOW : 0);
-
- fd = dirtree_parentfd(node);
- ret = fchownat(fd, node->name, TT.owner, TT.group,
- (flags&(FLAG_L|FLAG_H)) || !(flags&(FLAG_h|FLAG_R))
- ? 0 : AT_SYMLINK_NOFOLLOW);
-
- if (ret || (flags & FLAG_v)) {
- char *path = dirtree_path(node, 0);
- if (flags & FLAG_v)
- xprintf("%s %s%s%s %s\n", toys.which->name,
- TT.owner_name ? TT.owner_name : "",
- toys.which->name[2]=='o' && TT.group_name ? ":" : "",
- TT.group_name ? TT.group_name : "", path);
- if (ret == -1 && !(toys.optflags & FLAG_f))
- perror_msg("changing owner:group of '%s' to '%s:%s'", path,
- TT.owner_name, TT.group_name);
- free(path);
- }
- toys.exitval |= ret;
-
- return 0;
+ int fd, ret, flags = toys.optflags;
+
+ // Depth first search
+ if (!dirtree_notdotdot(node)) return 0;
+ if ((flags & FLAG_R) && node->data != -1 && S_ISDIR(node->st.st_mode))
+ return DIRTREE_COMEAGAIN|((flags&FLAG_L) ? DIRTREE_SYMFOLLOW : 0);
+
+ fd = dirtree_parentfd(node);
+ ret = fchownat(fd, node->name, TT.owner, TT.group,
+ (flags&(FLAG_L|FLAG_H)) || !(flags&(FLAG_h|FLAG_R))
+ ? 0 : AT_SYMLINK_NOFOLLOW);
+
+ if (ret || (flags & FLAG_v)) {
+ char *path = dirtree_path(node, 0);
+ if (flags & FLAG_v)
+ xprintf("%s %s%s%s %s\n", toys.which->name,
+ TT.owner_name ? TT.owner_name : "",
+ toys.which->name[2]=='o' && TT.group_name ? ":" : "",
+ TT.group_name ? TT.group_name : "", path);
+ if (ret == -1 && !(toys.optflags & FLAG_f))
+ perror_msg("changing owner:group of '%s' to '%s:%s'", path,
+ TT.owner_name, TT.group_name);
+ free(path);
+ }
+ toys.exitval |= ret;
+
+ return 0;
}
void chgrp_main(void)
{
- int ischown = toys.which->name[2] == 'o';
- char **s, *own;
-
- // Distinguish chown from chgrp
- if (ischown) {
- char *grp;
- struct passwd *p;
-
- own = xstrdup(*toys.optargs);
- if ((grp = strchr(own, ':')) || (grp = strchr(own, '.'))) {
- *(grp++) = 0;
- TT.group_name = grp;
- }
- if (*own) {
- TT.owner_name = own;
- p = getpwnam(own);
- // TODO: trailing garbage?
- if (!p && isdigit(*own)) p=getpwuid(atoi(own));
- if (!p) error_exit("no user '%s'", own);
- TT.owner = p->pw_uid;
- }
- } else TT.group_name = *toys.optargs;
-
- if (TT.group_name) {
- struct group *g;
- g = getgrnam(TT.group_name);
- if (!g) g=getgrgid(atoi(TT.group_name));
- if (!g) error_exit("no group '%s'", TT.group_name);
- TT.group = g->gr_gid;
- }
-
- for (s=toys.optargs+1; *s; s++) {
- struct dirtree *new = dirtree_add_node(AT_FDCWD, *s,
- toys.optflags&(FLAG_H|FLAG_L));
- if (new) handle_callback(new, do_chgrp);
- else toys.exitval = 1;
- }
-
- if (CFG_TOYBOX_FREE) free(own);
+ int ischown = toys.which->name[2] == 'o';
+ char **s, *own;
+
+ // Distinguish chown from chgrp
+ if (ischown) {
+ char *grp;
+ struct passwd *p;
+
+ own = xstrdup(*toys.optargs);
+ if ((grp = strchr(own, ':')) || (grp = strchr(own, '.'))) {
+ *(grp++) = 0;
+ TT.group_name = grp;
+ }
+ if (*own) {
+ TT.owner_name = own;
+ p = getpwnam(own);
+ // TODO: trailing garbage?
+ if (!p && isdigit(*own)) p=getpwuid(atoi(own));
+ if (!p) error_exit("no user '%s'", own);
+ TT.owner = p->pw_uid;
+ }
+ } else TT.group_name = *toys.optargs;
+
+ if (TT.group_name) {
+ struct group *g;
+ g = getgrnam(TT.group_name);
+ if (!g) g=getgrgid(atoi(TT.group_name));
+ if (!g) error_exit("no group '%s'", TT.group_name);
+ TT.group = g->gr_gid;
+ }
+
+ for (s=toys.optargs+1; *s; s++) {
+ struct dirtree *new = dirtree_add_node(AT_FDCWD, *s,
+ toys.optflags&(FLAG_H|FLAG_L));
+ if (new) handle_callback(new, do_chgrp);
+ else toys.exitval = 1;
+ }
+
+ if (CFG_TOYBOX_FREE) free(own);
}
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