diff options
Diffstat (limited to 'toys/posix/chmod.c')
| -rw-r--r-- | toys/posix/chmod.c | 68 |
1 files changed, 33 insertions, 35 deletions
diff --git a/toys/posix/chmod.c b/toys/posix/chmod.c index dcef9751..89b6e083 100644 --- a/toys/posix/chmod.c +++ b/toys/posix/chmod.c @@ -1,6 +1,4 @@ -/* vi: set sw=4 ts=4: - * - * chmod.c - Change file mode bits +/* chmod.c - Change file mode bits * * Copyright 2012 Rob Landley <rob@landley.net> * @@ -9,59 +7,59 @@ USE_CHMOD(NEWTOY(chmod, "<2?vR", TOYFLAG_BIN)) config CHMOD - bool "chmod" - default y - help - usage: chmod [-R] MODE FILE... + bool "chmod" + default y + help + usage: chmod [-R] MODE FILE... - Change mode of listed file[s] (recursively with -R). + Change mode of listed file[s] (recursively with -R). - MODE can be (comma-separated) stanzas: [ugoa][+-=][rwxstXugo] + MODE can be (comma-separated) stanzas: [ugoa][+-=][rwxstXugo] - Stanzas are applied in order: For each category (u = user, - g = group, o = other, a = all three, if none specified default is a), - set (+), clear (-), or copy (=), r = read, w = write, x = execute. - s = u+s = suid, g+s = sgid, o+s = sticky. (+t is an alias for o+s). - suid/sgid: execute as the user/group who owns the file. - sticky: can't delete files you don't own out of this directory - X = x for directories or if any category already has x set. + Stanzas are applied in order: For each category (u = user, + g = group, o = other, a = all three, if none specified default is a), + set (+), clear (-), or copy (=), r = read, w = write, x = execute. + s = u+s = suid, g+s = sgid, o+s = sticky. (+t is an alias for o+s). + suid/sgid: execute as the user/group who owns the file. + sticky: can't delete files you don't own out of this directory + X = x for directories or if any category already has x set. - Or MODE can be an octal value up to 7777 ug uuugggooo top + - bit 1 = o+x, bit 1<<8 = u+w, 1<<11 = g+1 sstrwxrwxrwx bottom + Or MODE can be an octal value up to 7777 ug uuugggooo top + + bit 1 = o+x, bit 1<<8 = u+w, 1<<11 = g+1 sstrwxrwxrwx bottom - Examples: - chmod u+w file - allow owner of "file" to write to it. - chmod 744 file - user can read/write/execute, everyone else read only + Examples: + chmod u+w file - allow owner of "file" to write to it. + chmod 744 file - user can read/write/execute, everyone else read only */ #define FOR_chmod #include "toys.h" GLOBALS( - char *mode; + char *mode; ) int do_chmod(struct dirtree *try) { - mode_t mode; + mode_t mode; - if (!dirtree_notdotdot(try)) return 0; + if (!dirtree_notdotdot(try)) return 0; - mode = string_to_mode(TT.mode, try->st.st_mode); - if (toys.optflags & FLAG_v) { - char *s = dirtree_path(try, 0); - printf("chmod '%s' to %04o\n", s, mode); - free(s); - } - wfchmodat(dirtree_parentfd(try), try->name, mode); + mode = string_to_mode(TT.mode, try->st.st_mode); + if (toys.optflags & FLAG_v) { + char *s = dirtree_path(try, 0); + printf("chmod '%s' to %04o\n", s, mode); + free(s); + } + wfchmodat(dirtree_parentfd(try), try->name, mode); - return (toys.optflags & FLAG_R) ? DIRTREE_RECURSE : 0; + return (toys.optflags & FLAG_R) ? DIRTREE_RECURSE : 0; } void chmod_main(void) { - TT.mode = *toys.optargs; - char **file; + TT.mode = *toys.optargs; + char **file; - for (file = toys.optargs+1; *file; file++) dirtree_read(*file, do_chmod); + for (file = toys.optargs+1; *file; file++) dirtree_read(*file, do_chmod); } |