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Diffstat (limited to 'findutils/find.c')
-rw-r--r--findutils/find.c68
1 files changed, 39 insertions, 29 deletions
diff --git a/findutils/find.c b/findutils/find.c
index 43120250b..3eea53db0 100644
--- a/findutils/find.c
+++ b/findutils/find.c
@@ -70,7 +70,7 @@ USE_FEATURE_FIND_MTIME( ACTS(mtime, char mtime_char; unsigned mtime_days;))
USE_FEATURE_FIND_MMIN( ACTS(mmin, char mmin_char; unsigned mmin_mins;))
USE_FEATURE_FIND_NEWER( ACTS(newer, time_t newer_mtime;))
USE_FEATURE_FIND_INUM( ACTS(inum, ino_t inode_num;))
-USE_FEATURE_FIND_EXEC( ACTS(exec, char **exec_argv; unsigned int *subst_count; int exec_argc;))
+USE_FEATURE_FIND_EXEC( ACTS(exec, char **exec_argv; unsigned *subst_count; int exec_argc;))
USE_FEATURE_FIND_USER( ACTS(user, uid_t uid;))
USE_FEATURE_FIND_GROUP( ACTS(group, gid_t gid;))
USE_FEATURE_FIND_PAREN( ACTS(paren, action ***subexpr;))
@@ -79,12 +79,12 @@ USE_FEATURE_FIND_PRUNE( ACTS(prune))
static action ***actions;
static bool need_print = 1;
-static int recurse_flags = action_recurse;
+static int recurse_flags = ACTION_RECURSE;
#if ENABLE_FEATURE_FIND_EXEC
-static unsigned int count_subst(const char *str)
+static unsigned count_subst(const char *str)
{
- unsigned int count = 0;
+ unsigned count = 0;
while ((str = strstr(str, "{}"))) {
count++;
str++;
@@ -93,7 +93,7 @@ static unsigned int count_subst(const char *str)
}
-static char* subst(const char *src, unsigned int count, const char* filename)
+static char* subst(const char *src, unsigned count, const char* filename)
{
char *buf, *dst, *end;
size_t flen = strlen(filename);
@@ -111,6 +111,10 @@ static char* subst(const char *src, unsigned int count, const char* filename)
}
#endif
+/* Return values of ACTFs ('action functions') are a bit mask:
+ * bit 1=1: prune (use SKIP constant for setting it)
+ * bit 0=1: matched successfully (TRUE)
+ */
static int exec_actions(action ***appp, const char *fileName, struct stat *statbuf)
{
@@ -121,24 +125,24 @@ static int exec_actions(action ***appp, const char *fileName, struct stat *statb
cur_group = -1;
while ((app = appp[++cur_group])) {
+ /* We invert TRUE bit (bit 0). Now 1 there means 'failure'.
+ * and bitwise OR in "rc |= TRUE ^ ap->f()" will:
+ * (1) make SKIP bit stick; and (2) detect 'failure' */
+ rc = 0; /* 'success' so far */
cur_action = -1;
while (1) {
ap = app[++cur_action];
- if (!ap) {
- /* all actions in group were successful */
- return rc;
- }
- rc = ap->f(fileName, statbuf, ap);
+ if (!ap) /* all actions in group were successful */
+ return rc ^ TRUE;
+ rc |= TRUE ^ ap->f(fileName, statbuf, ap);
#if ENABLE_FEATURE_FIND_NOT
- if (ap->invert) rc = !rc;
+ if (ap->invert) rc ^= TRUE;
#endif
- if (!rc) {
- /* current group failed, try next */
+ if (rc & TRUE) /* current group failed, try next */
break;
- }
}
}
- return rc;
+ return rc ^ TRUE; /* straighten things out */
}
@@ -147,8 +151,16 @@ ACTF(name)
const char *tmp = strrchr(fileName, '/');
if (tmp == NULL)
tmp = fileName;
- else
+ else {
tmp++;
+ if (!*tmp) { /* "foo/bar/". Oh no... go back to 'b' */
+ tmp--;
+ while (tmp != fileName && *--tmp != '/')
+ continue;
+ if (*tmp == '/')
+ tmp++;
+ }
+ }
return fnmatch(ap->pattern, tmp, FNM_PERIOD) == 0;
}
#if ENABLE_FEATURE_FIND_TYPE
@@ -269,7 +281,7 @@ ACTF(paren)
*/
ACTF(prune)
{
- return SKIP;
+ return SKIP + TRUE;
}
#endif
@@ -284,7 +296,7 @@ ACTF(size)
static int fileAction(const char *fileName, struct stat *statbuf, void* junk, int depth)
{
int i;
-#ifdef CONFIG_FEATURE_FIND_XDEV
+#if ENABLE_FEATURE_FIND_XDEV
if (S_ISDIR(statbuf->st_mode) && xdev_count) {
for (i = 0; i < xdev_count; i++) {
if (xdev_dev[i] != statbuf->st_dev)
@@ -294,11 +306,11 @@ static int fileAction(const char *fileName, struct stat *statbuf, void* junk, in
#endif
i = exec_actions(actions, fileName, statbuf);
/* Had no explicit -print[0] or -exec? then print */
- if (i && need_print)
+ if ((i & TRUE) && need_print)
puts(fileName);
/* Cannot return 0: our caller, recursive_action(),
* will perror() and skip dirs (if called on dir) */
- return i == 0 ? TRUE : i;
+ return (i & SKIP) ? SKIP : TRUE;
}
@@ -386,8 +398,8 @@ static action*** parse_params(char **argv)
USE_FEATURE_FIND_GROUP( "-group" ,)
USE_FEATURE_FIND_DEPTH( "-depth" ,)
USE_FEATURE_FIND_PAREN( "(" ,)
- USE_FEATURE_FIND_SIZE( "-size" ,)
- USE_FEATURE_FIND_PRUNE( "-prune" ,)
+ USE_FEATURE_FIND_SIZE( "-size" ,)
+ USE_FEATURE_FIND_PRUNE( "-prune" ,)
#if ENABLE_DESKTOP
"-and" ,
"-or" ,
@@ -486,8 +498,7 @@ static action*** parse_params(char **argv)
}
#endif
#if ENABLE_FEATURE_FIND_PERM
-/* TODO:
- * -perm mode File's permission bits are exactly mode (octal or symbolic).
+/* -perm mode File's permission bits are exactly mode (octal or symbolic).
* Symbolic modes use mode 0 as a point of departure.
* -perm -mode All of the permission bits mode are set for the file.
* -perm +mode Any of the permission bits mode are set for the file.
@@ -554,7 +565,7 @@ static action*** parse_params(char **argv)
ap->exec_argv = ++argv; /* first arg after -exec */
ap->exec_argc = 0;
while (1) {
- if (!*argv) /* did not see ';' util end */
+ if (!*argv) /* did not see ';' until end */
bb_error_msg_and_die(bb_msg_requires_arg, arg);
if (LONE_CHAR(argv[0], ';'))
break;
@@ -593,7 +604,7 @@ static action*** parse_params(char **argv)
#endif
#if ENABLE_FEATURE_FIND_DEPTH
else if (parm == PARM_depth) {
- recurse_flags |= action_depthFirst;
+ recurse_flags |= ACTION_DEPTHFIRST;
}
#endif
#if ENABLE_FEATURE_FIND_PAREN
@@ -652,7 +663,6 @@ USE_FEATURE_FIND_XDEV( "-xdev", )
NULL
};
- bool dereference = FALSE;
char *arg;
char **argp;
int i, firstopt, status = EXIT_SUCCESS;
@@ -684,7 +694,7 @@ USE_FEATURE_FIND_XDEV( "-xdev", )
while ((arg = argp[0])) {
i = index_in_str_array(options, arg);
if (i == 0) { /* -follow */
- dereference = TRUE;
+ recurse_flags |= ACTION_FOLLOWLINKS;
argp[0] = (char*)"-a";
}
#if ENABLE_FEATURE_FIND_XDEV
@@ -711,7 +721,7 @@ USE_FEATURE_FIND_XDEV( "-xdev", )
for (i = 1; i < firstopt; i++) {
if (!recursive_action(argv[i],
- recurse_flags|(1<<dereference), /* flags */
+ recurse_flags, /* flags */
fileAction, /* file action */
fileAction, /* dir action */
NULL, /* user data */
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-20 14:39:33 +0000