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https://github.com/sheumann/hush.git
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chown: do not use static data
function old new delta chown_main 160 182 +22 fileAction 750 744 -6 ugid 8 - -8
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08d120e6e1
@ -18,11 +18,11 @@
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#define OPT_STR ("Rh" USE_DESKTOP("vcfLHP"))
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#define BIT_RECURSE 1
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#define OPT_RECURSE (option_mask32 & 1)
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#define OPT_NODEREF (option_mask32 & 2)
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#define OPT_VERBOSE (USE_DESKTOP(option_mask32 & 0x04) SKIP_DESKTOP(0))
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#define OPT_CHANGED (USE_DESKTOP(option_mask32 & 0x08) SKIP_DESKTOP(0))
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#define OPT_QUIET (USE_DESKTOP(option_mask32 & 0x10) SKIP_DESKTOP(0))
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#define OPT_RECURSE (opt & 1)
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#define OPT_NODEREF (opt & 2)
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#define OPT_VERBOSE (USE_DESKTOP(opt & 0x04) SKIP_DESKTOP(0))
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#define OPT_CHANGED (USE_DESKTOP(opt & 0x08) SKIP_DESKTOP(0))
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#define OPT_QUIET (USE_DESKTOP(opt & 0x10) SKIP_DESKTOP(0))
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/* POSIX options
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* -L traverse every symbolic link to a directory encountered
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* -H if a command line argument is a symbolic link to a directory, traverse it
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@ -32,22 +32,27 @@
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* The last option specified shall determine the behavior of the utility." */
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/* -L */
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#define BIT_TRAVERSE 0x20
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#define OPT_TRAVERSE (USE_DESKTOP(option_mask32 & BIT_TRAVERSE) SKIP_DESKTOP(0))
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#define OPT_TRAVERSE (USE_DESKTOP(opt & BIT_TRAVERSE) SKIP_DESKTOP(0))
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/* -H or -L */
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#define BIT_TRAVERSE_TOP (0x20|0x40)
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#define OPT_TRAVERSE_TOP (USE_DESKTOP(option_mask32 & BIT_TRAVERSE_TOP) SKIP_DESKTOP(0))
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#define OPT_TRAVERSE_TOP (USE_DESKTOP(opt & BIT_TRAVERSE_TOP) SKIP_DESKTOP(0))
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typedef int (*chown_fptr)(const char *, uid_t, gid_t);
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static struct bb_uidgid_t ugid = { -1, -1 };
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struct param_t {
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struct bb_uidgid_t ugid;
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chown_fptr chown_func;
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};
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static int FAST_FUNC fileAction(const char *fileName, struct stat *statbuf,
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void *cf, int depth UNUSED_PARAM)
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void *vparam, int depth UNUSED_PARAM)
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{
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uid_t u = (ugid.uid == (uid_t)-1) ? statbuf->st_uid : ugid.uid;
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gid_t g = (ugid.gid == (gid_t)-1) ? statbuf->st_gid : ugid.gid;
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#define param (*(struct param_t*)vparam)
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#define opt option_mask32
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uid_t u = (param.ugid.uid == (uid_t)-1) ? statbuf->st_uid : param.ugid.uid;
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gid_t g = (param.ugid.gid == (gid_t)-1) ? statbuf->st_gid : param.ugid.gid;
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if (!((chown_fptr)cf)(fileName, u, g)) {
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if (param.chown_func(fileName, u, g) == 0) {
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if (OPT_VERBOSE
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|| (OPT_CHANGED && (statbuf->st_uid != u || statbuf->st_gid != g))
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) {
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@ -59,25 +64,30 @@ static int FAST_FUNC fileAction(const char *fileName, struct stat *statbuf,
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if (!OPT_QUIET)
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bb_simple_perror_msg(fileName); /* A filename can have % in it... */
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return FALSE;
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#undef opt
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#undef param
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}
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int chown_main(int argc UNUSED_PARAM, char **argv)
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{
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int retval = EXIT_SUCCESS;
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int flags;
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chown_fptr chown_func;
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int opt, flags;
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struct param_t param;
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param.ugid.uid = -1;
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param.ugid.gid = -1;
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param.chown_func = chown;
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opt_complementary = "-2";
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getopt32(argv, OPT_STR);
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opt = getopt32(argv, OPT_STR);
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argv += optind;
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/* This matches coreutils behavior (almost - see below) */
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chown_func = chown;
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if (OPT_NODEREF
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/* || (OPT_RECURSE && !OPT_TRAVERSE_TOP): */
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USE_DESKTOP( || (option_mask32 & (BIT_RECURSE|BIT_TRAVERSE_TOP)) == BIT_RECURSE)
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USE_DESKTOP( || (opt & (BIT_RECURSE|BIT_TRAVERSE_TOP)) == BIT_RECURSE)
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) {
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chown_func = lchown;
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param.chown_func = lchown;
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}
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flags = ACTION_DEPTHFIRST; /* match coreutils order */
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@ -88,7 +98,7 @@ int chown_main(int argc UNUSED_PARAM, char **argv)
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if (OPT_TRAVERSE)
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flags |= ACTION_FOLLOWLINKS; /* follow links if -L */
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parse_chown_usergroup_or_die(&ugid, argv[0]);
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parse_chown_usergroup_or_die(¶m.ugid, argv[0]);
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/* Ok, ready to do the deed now */
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argv++;
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@ -97,7 +107,7 @@ int chown_main(int argc UNUSED_PARAM, char **argv)
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flags, /* flags */
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fileAction, /* file action */
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fileAction, /* dir action */
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chown_func, /* user data */
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¶m, /* user data */
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0) /* depth */
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) {
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retval = EXIT_FAILURE;
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