* (no output)
*/
+/* Testing script
+ * ./busybox find "$@" | tee /tmp/bb_find
+ * echo ==================
+ * /path/to/gnu/find "$@" | tee /tmp/std_find
+ * echo ==================
+ * diff -u /tmp/std_find /tmp/bb_find && echo Identical
+ */
+
#include <fnmatch.h>
-#include "busybox.h"
+#include "libbb.h"
+#if ENABLE_FEATURE_FIND_REGEX
+#include "xregex.h"
+#endif
+
+/* This is a NOEXEC applet. Be very careful! */
+
USE_FEATURE_FIND_XDEV(static dev_t *xdev_dev;)
USE_FEATURE_FIND_XDEV(static int xdev_count;)
#endif
} action;
#define ACTS(name, arg...) typedef struct { action a; arg; } action_##name;
-#define ACTF(name) static int func_##name(const char *fileName, struct stat *statbuf, action_##name* ap)
- ACTS(print)
- ACTS(name, const char *pattern;)
-USE_FEATURE_FIND_PRINT0(ACTS(print0))
-USE_FEATURE_FIND_TYPE( ACTS(type, int type_mask;))
-USE_FEATURE_FIND_PERM( ACTS(perm, char perm_char; mode_t perm_mask;))
-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_USER( ACTS(user, uid_t uid;))
-USE_FEATURE_FIND_GROUP( ACTS(group, gid_t gid;))
-USE_FEATURE_FIND_PAREN( ACTS(paren, action ***subexpr;))
-USE_FEATURE_FIND_SIZE( ACTS(size, off_t size;))
-USE_FEATURE_FIND_PRUNE( ACTS(prune))
+#define ACTF(name) static int func_##name(const char *fileName ATTRIBUTE_UNUSED, \
+ struct stat *statbuf ATTRIBUTE_UNUSED, \
+ action_##name* ap ATTRIBUTE_UNUSED)
+ ACTS(print)
+ ACTS(name, const char *pattern; bool iname;)
+USE_FEATURE_FIND_PATH( ACTS(path, const char *pattern;))
+USE_FEATURE_FIND_REGEX( ACTS(regex, regex_t compiled_pattern;))
+USE_FEATURE_FIND_PRINT0( ACTS(print0))
+USE_FEATURE_FIND_TYPE( ACTS(type, int type_mask;))
+USE_FEATURE_FIND_PERM( ACTS(perm, char perm_char; mode_t perm_mask;))
+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_USER( ACTS(user, uid_t uid;))
+USE_FEATURE_FIND_SIZE( ACTS(size, char size_char; off_t size;))
+USE_FEATURE_FIND_CONTEXT(ACTS(context, security_context_t context;))
+USE_FEATURE_FIND_PAREN( ACTS(paren, action ***subexpr;))
+USE_FEATURE_FIND_PRUNE( ACTS(prune))
+USE_FEATURE_FIND_DELETE( ACTS(delete))
+USE_FEATURE_FIND_EXEC( ACTS(exec, char **exec_argv; unsigned *subst_count; int exec_argc;))
+USE_FEATURE_FIND_GROUP( ACTS(group, gid_t gid;))
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;
- while ((str = strstr(str, "{}"))) {
+ unsigned count = 0;
+ while ((str = strstr(str, "{}")) != NULL) {
count++;
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);
}
#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)
{
int cur_group;
int cur_action;
- int rc = TRUE;
+ int rc = 0;
action **app, *ap;
+ /* "action group" is a set of actions ANDed together.
+ * groups are ORed together.
+ * We simply evaluate each group until we find one in which all actions
+ * succeed. */
+
+ /* -prune is special: if it is encountered, then we won't
+ * descend into current directory. It doesn't matter whether
+ * action group (in which -prune sits) will succeed or not:
+ * find * -prune -name 'f*' -o -name 'm*' -- prunes every dir
+ * find * -name 'f*' -o -prune -name 'm*' -- prunes all dirs
+ * not starting with 'f' */
+
+ /* We invert TRUE bit (bit 0). Now 1 there means 'failure'.
+ * and bitwise OR in "rc |= TRUE ^ ap->f()" will:
+ * (1) make SKIP (-prune) bit stick; and (2) detect 'failure'.
+ * On return, bit is restored. */
+
cur_group = -1;
while ((app = appp[++cur_group])) {
+ rc &= ~TRUE; /* 'success' so far, clear TRUE bit */
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; /* restore TRUE bit */
+ 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; /* restore TRUE bit */
}
ACTF(name)
{
- const char *tmp = strrchr(fileName, '/');
- if (tmp == NULL)
- tmp = fileName;
- else
- tmp++;
- return fnmatch(ap->pattern, tmp, FNM_PERIOD) == 0;
+ const char *tmp = bb_basename(fileName);
+ if (tmp != fileName && !*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 | (ap->iname ? FNM_CASEFOLD : 0)) == 0;
+}
+
+#if ENABLE_FEATURE_FIND_PATH
+ACTF(path)
+{
+ return fnmatch(ap->pattern, fileName, 0) == 0;
}
+#endif
+#if ENABLE_FEATURE_FIND_REGEX
+ACTF(regex)
+{
+ regmatch_t match;
+ if (regexec(&ap->compiled_pattern, fileName, 1, &match, 0 /*eflags*/))
+ return 0; /* no match */
+ if (match.rm_so)
+ return 0; /* match doesn't start at pos 0 */
+ if (fileName[match.rm_eo])
+ return 0; /* match doesn't end exactly at end of pathname */
+ return 1;
+}
+#endif
#if ENABLE_FEATURE_FIND_TYPE
ACTF(type)
{
ACTF(exec)
{
int i, rc;
- char *argv[ap->exec_argc+1];
+ char *argv[ap->exec_argc + 1];
for (i = 0; i < ap->exec_argc; i++)
argv[i] = subst(ap->exec_argv[i], ap->subst_count[i], fileName);
argv[i] = NULL; /* terminate the list */
- rc = wait4pid(spawn(argv));
- if (rc)
- bb_perror_msg("%s", argv[0]);
- for (i = 0; i < ap->exec_argc; i++)
- free(argv[i]);
- return rc == 0; /* return 1 if success */
+
+ rc = spawn_and_wait(argv);
+ if (rc < 0)
+ bb_simple_perror_msg(argv[0]);
+
+ i = 0;
+ while (argv[i])
+ free(argv[i++]);
+ return rc == 0; /* return 1 if exitcode 0 */
}
#endif
-
#if ENABLE_FEATURE_FIND_USER
ACTF(user)
{
return (statbuf->st_uid == ap->uid);
}
#endif
-
#if ENABLE_FEATURE_FIND_GROUP
ACTF(group)
{
return (statbuf->st_gid == ap->gid);
}
#endif
-
#if ENABLE_FEATURE_FIND_PRINT0
ACTF(print0)
{
return TRUE;
}
#endif
-
ACTF(print)
{
puts(fileName);
return TRUE;
}
-
#if ENABLE_FEATURE_FIND_PAREN
ACTF(paren)
{
return exec_actions(ap->subexpr, fileName, statbuf);
}
#endif
-
+#if ENABLE_FEATURE_FIND_SIZE
+ACTF(size)
+{
+ if (ap->size_char == '+')
+ return statbuf->st_size > ap->size;
+ if (ap->size_char == '-')
+ return statbuf->st_size < ap->size;
+ return statbuf->st_size == ap->size;
+}
+#endif
#if ENABLE_FEATURE_FIND_PRUNE
/*
* -prune: if -depth is not given, return true and do not descend
*/
ACTF(prune)
{
- return SKIP;
+ return SKIP + TRUE;
}
#endif
-
-#if ENABLE_FEATURE_FIND_SIZE
-ACTF(size)
+#if ENABLE_FEATURE_FIND_DELETE
+ACTF(delete)
{
- return statbuf->st_size == ap->size;
+ int rc;
+ if (S_ISDIR(statbuf->st_mode)) {
+ rc = rmdir(fileName);
+ } else {
+ rc = unlink(fileName);
+ }
+ if (rc < 0)
+ bb_simple_perror_msg(fileName);
+ return TRUE;
+}
+#endif
+#if ENABLE_FEATURE_FIND_CONTEXT
+ACTF(context)
+{
+ security_context_t con;
+ int rc;
+
+ if (recurse_flags & ACTION_FOLLOWLINKS) {
+ rc = getfilecon(fileName, &con);
+ } else {
+ rc = lgetfilecon(fileName, &con);
+ }
+ if (rc < 0)
+ return FALSE;
+ rc = strcmp(ap->context, con);
+ freecon(con);
+ return rc == 0;
}
#endif
-static int fileAction(const char *fileName, struct stat *statbuf, void* junk, int depth)
+static int fileAction(const char *fileName,
+ struct stat *statbuf,
+ void *userData SKIP_FEATURE_FIND_MAXDEPTH(ATTRIBUTE_UNUSED),
+ int depth SKIP_FEATURE_FIND_MAXDEPTH(ATTRIBUTE_UNUSED))
{
int i;
-#ifdef CONFIG_FEATURE_FIND_XDEV
+#if ENABLE_FEATURE_FIND_MAXDEPTH
+ int maxdepth = (int)(ptrdiff_t)userData;
+
+ if (depth > maxdepth) return SKIP;
+#endif
+
+#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)
- return SKIP;
+ if (xdev_dev[i] == statbuf->st_dev)
+ break;
}
+ if (i == xdev_count)
+ return SKIP;
}
#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;
}
}
#endif
-#if ENABLE_FEATURE_FIND_PERM || ENABLE_FEATURE_FIND_MTIME \
- || ENABLE_FEATURE_FIND_MMIN
+#if ENABLE_FEATURE_FIND_PERM \
+ || ENABLE_FEATURE_FIND_MTIME || ENABLE_FEATURE_FIND_MMIN \
+ || ENABLE_FEATURE_FIND_SIZE
static const char* plus_minus_num(const char* str)
{
if (*str == '-' || *str == '+')
static action*** parse_params(char **argv)
{
enum {
- PARM_a ,
- PARM_o ,
- USE_FEATURE_FIND_NOT( PARM_char_not ,)
- PARM_print ,
- USE_FEATURE_FIND_PRINT0(PARM_print0 ,)
- PARM_name ,
- USE_FEATURE_FIND_TYPE( PARM_type ,)
- USE_FEATURE_FIND_PERM( PARM_perm ,)
- USE_FEATURE_FIND_MTIME( PARM_mtime ,)
- USE_FEATURE_FIND_MMIN( PARM_mmin ,)
- USE_FEATURE_FIND_NEWER( PARM_newer ,)
- USE_FEATURE_FIND_INUM( PARM_inum ,)
- USE_FEATURE_FIND_EXEC( PARM_exec ,)
- USE_FEATURE_FIND_USER( PARM_user ,)
- USE_FEATURE_FIND_GROUP( PARM_group ,)
- USE_FEATURE_FIND_DEPTH( PARM_depth ,)
- USE_FEATURE_FIND_PAREN( PARM_char_brace,)
- USE_FEATURE_FIND_SIZE( PARM_size ,)
- USE_FEATURE_FIND_PRUNE( PARM_prune ,)
+ PARM_a ,
+ PARM_o ,
+ USE_FEATURE_FIND_NOT( PARM_char_not ,)
#if ENABLE_DESKTOP
- PARM_and ,
- PARM_or ,
- USE_FEATURE_FIND_NOT( PARM_not ,)
-#endif
+ PARM_and ,
+ PARM_or ,
+ USE_FEATURE_FIND_NOT( PARM_not ,)
+#endif
+ PARM_print ,
+ USE_FEATURE_FIND_PRINT0( PARM_print0 ,)
+ USE_FEATURE_FIND_DEPTH( PARM_depth ,)
+ USE_FEATURE_FIND_PRUNE( PARM_prune ,)
+ USE_FEATURE_FIND_DELETE( PARM_delete ,)
+ USE_FEATURE_FIND_EXEC( PARM_exec ,)
+ USE_FEATURE_FIND_PAREN( PARM_char_brace,)
+ /* All options starting from here require argument */
+ PARM_name ,
+ PARM_iname ,
+ USE_FEATURE_FIND_PATH( PARM_path ,)
+ USE_FEATURE_FIND_REGEX( PARM_regex ,)
+ USE_FEATURE_FIND_TYPE( PARM_type ,)
+ USE_FEATURE_FIND_PERM( PARM_perm ,)
+ USE_FEATURE_FIND_MTIME( PARM_mtime ,)
+ USE_FEATURE_FIND_MMIN( PARM_mmin ,)
+ USE_FEATURE_FIND_NEWER( PARM_newer ,)
+ USE_FEATURE_FIND_INUM( PARM_inum ,)
+ USE_FEATURE_FIND_USER( PARM_user ,)
+ USE_FEATURE_FIND_GROUP( PARM_group ,)
+ USE_FEATURE_FIND_SIZE( PARM_size ,)
+ USE_FEATURE_FIND_CONTEXT(PARM_context ,)
};
- static const char *const params[] = {
- "-a" ,
- "-o" ,
- USE_FEATURE_FIND_NOT( "!" ,)
- "-print" ,
- USE_FEATURE_FIND_PRINT0("-print0",)
- "-name" ,
- USE_FEATURE_FIND_TYPE( "-type" ,)
- USE_FEATURE_FIND_PERM( "-perm" ,)
- USE_FEATURE_FIND_MTIME( "-mtime" ,)
- USE_FEATURE_FIND_MMIN( "-mmin" ,)
- USE_FEATURE_FIND_NEWER( "-newer" ,)
- USE_FEATURE_FIND_INUM( "-inum" ,)
- USE_FEATURE_FIND_EXEC( "-exec" ,)
- USE_FEATURE_FIND_USER( "-user" ,)
- USE_FEATURE_FIND_GROUP( "-group" ,)
- USE_FEATURE_FIND_DEPTH( "-depth" ,)
- USE_FEATURE_FIND_PAREN( "(" ,)
- USE_FEATURE_FIND_SIZE( "-size" ,)
- USE_FEATURE_FIND_PRUNE( "-prune" ,)
+ static const char params[] ALIGN1 =
+ "-a\0"
+ "-o\0"
+ USE_FEATURE_FIND_NOT( "!\0" )
#if ENABLE_DESKTOP
- "-and" ,
- "-or" ,
- USE_FEATURE_FIND_NOT( "-not" ,)
-#endif
- NULL
- };
+ "-and\0"
+ "-or\0"
+ USE_FEATURE_FIND_NOT( "-not\0" )
+#endif
+ "-print\0"
+ USE_FEATURE_FIND_PRINT0( "-print0\0" )
+ USE_FEATURE_FIND_DEPTH( "-depth\0" )
+ USE_FEATURE_FIND_PRUNE( "-prune\0" )
+ USE_FEATURE_FIND_DELETE( "-delete\0" )
+ USE_FEATURE_FIND_EXEC( "-exec\0" )
+ USE_FEATURE_FIND_PAREN( "(\0" )
+ /* All options starting from here require argument */
+ "-name\0"
+ "-iname\0"
+ USE_FEATURE_FIND_PATH( "-path\0" )
+ USE_FEATURE_FIND_REGEX( "-regex\0" )
+ USE_FEATURE_FIND_TYPE( "-type\0" )
+ USE_FEATURE_FIND_PERM( "-perm\0" )
+ USE_FEATURE_FIND_MTIME( "-mtime\0" )
+ USE_FEATURE_FIND_MMIN( "-mmin\0" )
+ USE_FEATURE_FIND_NEWER( "-newer\0" )
+ USE_FEATURE_FIND_INUM( "-inum\0" )
+ USE_FEATURE_FIND_USER( "-user\0" )
+ USE_FEATURE_FIND_GROUP( "-group\0" )
+ USE_FEATURE_FIND_SIZE( "-size\0" )
+ USE_FEATURE_FIND_CONTEXT("-context\0")
+ ;
action*** appp;
unsigned cur_group = 0;
*/
while (*argv) {
const char *arg = argv[0];
+ int parm = index_in_strings(params, arg);
const char *arg1 = argv[1];
- int parm = index_in_str_array(params, arg);
+
+ if (parm >= PARM_name) {
+ /* All options starting from -name require argument */
+ if (!arg1)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ argv++;
+ }
+
+ /* We can use big switch() here, but on i386
+ * it doesn't give smaller code. Other arches? */
+
/* --- Operators --- */
if (parm == PARM_a USE_DESKTOP(|| parm == PARM_and)) {
/* no further special handling required */
(void) ALLOC_ACTION(print0);
}
#endif
- else if (parm == PARM_name) {
- action_name *ap;
- if (!*++argv)
+#if ENABLE_FEATURE_FIND_DEPTH
+ else if (parm == PARM_depth) {
+ recurse_flags |= ACTION_DEPTHFIRST;
+ }
+#endif
+#if ENABLE_FEATURE_FIND_PRUNE
+ else if (parm == PARM_prune) {
+ USE_FEATURE_FIND_NOT( invert_flag = 0; )
+ (void) ALLOC_ACTION(prune);
+ }
+#endif
+#if ENABLE_FEATURE_FIND_DELETE
+ else if (parm == PARM_delete) {
+ need_print = 0;
+ recurse_flags |= ACTION_DEPTHFIRST;
+ (void) ALLOC_ACTION(delete);
+ }
+#endif
+#if ENABLE_FEATURE_FIND_EXEC
+ else if (parm == PARM_exec) {
+ int i;
+ action_exec *ap;
+ need_print = 0;
+ USE_FEATURE_FIND_NOT( invert_flag = 0; )
+ ap = ALLOC_ACTION(exec);
+ ap->exec_argv = ++argv; /* first arg after -exec */
+ ap->exec_argc = 0;
+ while (1) {
+ if (!*argv) /* did not see ';' until end */
+ bb_error_msg_and_die("-exec CMD must end by ';'");
+ if (LONE_CHAR(argv[0], ';'))
+ break;
+ argv++;
+ ap->exec_argc++;
+ }
+ if (ap->exec_argc == 0)
bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ ap->subst_count = xmalloc(ap->exec_argc * sizeof(int));
+ i = ap->exec_argc;
+ while (i--)
+ ap->subst_count[i] = count_subst(ap->exec_argv[i]);
+ }
+#endif
+#if ENABLE_FEATURE_FIND_PAREN
+ else if (parm == PARM_char_brace) {
+ action_paren *ap;
+ char **endarg;
+ unsigned nested = 1;
+
+ endarg = argv;
+ while (1) {
+ if (!*++endarg)
+ bb_error_msg_and_die("unpaired '('");
+ if (LONE_CHAR(*endarg, '('))
+ nested++;
+ else if (LONE_CHAR(*endarg, ')') && !--nested) {
+ *endarg = NULL;
+ break;
+ }
+ }
+ ap = ALLOC_ACTION(paren);
+ ap->subexpr = parse_params(argv + 1);
+ *endarg = (char*) ")"; /* restore NULLed parameter */
+ argv = endarg;
+ }
+#endif
+ else if (parm == PARM_name || parm == PARM_iname) {
+ action_name *ap;
ap = ALLOC_ACTION(name);
ap->pattern = arg1;
+ ap->iname = (parm == PARM_iname);
}
+#if ENABLE_FEATURE_FIND_PATH
+ else if (parm == PARM_path) {
+ action_path *ap;
+ ap = ALLOC_ACTION(path);
+ ap->pattern = arg1;
+ }
+#endif
+#if ENABLE_FEATURE_FIND_REGEX
+ else if (parm == PARM_regex) {
+ action_regex *ap;
+ ap = ALLOC_ACTION(regex);
+ xregcomp(&ap->compiled_pattern, arg1, 0 /*cflags*/);
+ }
+#endif
#if ENABLE_FEATURE_FIND_TYPE
else if (parm == PARM_type) {
action_type *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
ap = ALLOC_ACTION(type);
ap->type_mask = find_type(arg1);
}
#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.
*/
else if (parm == PARM_perm) {
action_perm *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
ap = ALLOC_ACTION(perm);
ap->perm_char = arg1[0];
arg1 = plus_minus_num(arg1);
#if ENABLE_FEATURE_FIND_MTIME
else if (parm == PARM_mtime) {
action_mtime *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
ap = ALLOC_ACTION(mtime);
ap->mtime_char = arg1[0];
ap->mtime_days = xatoul(plus_minus_num(arg1));
#if ENABLE_FEATURE_FIND_MMIN
else if (parm == PARM_mmin) {
action_mmin *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
ap = ALLOC_ACTION(mmin);
ap->mmin_char = arg1[0];
ap->mmin_mins = xatoul(plus_minus_num(arg1));
#endif
#if ENABLE_FEATURE_FIND_NEWER
else if (parm == PARM_newer) {
- action_newer *ap;
struct stat stat_newer;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
- xstat(arg1, &stat_newer);
+ action_newer *ap;
ap = ALLOC_ACTION(newer);
+ xstat(arg1, &stat_newer);
ap->newer_mtime = stat_newer.st_mtime;
}
#endif
#if ENABLE_FEATURE_FIND_INUM
else if (parm == PARM_inum) {
action_inum *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
ap = ALLOC_ACTION(inum);
ap->inode_num = xatoul(arg1);
}
#endif
-#if ENABLE_FEATURE_FIND_EXEC
- else if (parm == PARM_exec) {
- int i;
- action_exec *ap;
- need_print = 0;
- USE_FEATURE_FIND_NOT( invert_flag = 0; )
- ap = ALLOC_ACTION(exec);
- ap->exec_argv = ++argv; /* first arg after -exec */
- ap->exec_argc = 0;
- while (1) {
- if (!*argv) /* did not see ';' util end */
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
- if (LONE_CHAR(argv[0], ';'))
- break;
- argv++;
- ap->exec_argc++;
- }
- if (ap->exec_argc == 0)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
- ap->subst_count = xmalloc(ap->exec_argc * sizeof(int));
- i = ap->exec_argc;
- while (i--)
- ap->subst_count[i] = count_subst(ap->exec_argv[i]);
- }
-#endif
#if ENABLE_FEATURE_FIND_USER
else if (parm == PARM_user) {
action_user *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
ap = ALLOC_ACTION(user);
ap->uid = bb_strtou(arg1, NULL, 10);
if (errno)
#if ENABLE_FEATURE_FIND_GROUP
else if (parm == PARM_group) {
action_group *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
ap = ALLOC_ACTION(group);
ap->gid = bb_strtou(arg1, NULL, 10);
if (errno)
ap->gid = xgroup2gid(arg1);
}
#endif
-#if ENABLE_FEATURE_FIND_DEPTH
- else if (parm == PARM_depth) {
- recurse_flags |= action_depthFirst;
- }
-#endif
-#if ENABLE_FEATURE_FIND_PAREN
- else if (parm == PARM_char_brace) {
- action_paren *ap;
- char **endarg;
- unsigned nested = 1;
-
- endarg = argv;
- while (1) {
- if (!*++endarg)
- bb_error_msg_and_die("unpaired '('");
- if (LONE_CHAR(*endarg, '('))
- nested++;
- else if (LONE_CHAR(*endarg, ')') && !--nested) {
- *endarg = NULL;
- break;
- }
- }
- ap = ALLOC_ACTION(paren);
- ap->subexpr = parse_params(argv + 1);
- *endarg = (char*) ")"; /* restore NULLed parameter */
- argv = endarg;
- }
-#endif
-#if ENABLE_FEATURE_FIND_PRUNE
- else if (parm == PARM_prune) {
- USE_FEATURE_FIND_NOT( invert_flag = 0; )
- (void) ALLOC_ACTION(prune);
- }
-#endif
#if ENABLE_FEATURE_FIND_SIZE
else if (parm == PARM_size) {
+/* -size n[bckw]: file uses n units of space
+ * b (default): units are 512-byte blocks
+ * c: 1 byte
+ * k: kilobytes
+ * w: 2-byte words
+ */
+#if ENABLE_LFS
+#define XATOU_SFX xatoull_sfx
+#else
+#define XATOU_SFX xatoul_sfx
+#endif
+ static const struct suffix_mult find_suffixes[] = {
+ { "c", 1 },
+ { "w", 2 },
+ { "", 512 },
+ { "b", 512 },
+ { "k", 1024 },
+ { }
+ };
action_size *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
ap = ALLOC_ACTION(size);
- ap->size = XATOOFF(arg1);
+ ap->size_char = arg1[0];
+ ap->size = XATOU_SFX(plus_minus_num(arg1), find_suffixes);
}
#endif
- else
+#if ENABLE_FEATURE_FIND_CONTEXT
+ else if (parm == PARM_context) {
+ action_context *ap;
+ ap = ALLOC_ACTION(context);
+ ap->context = NULL;
+ /* SELinux headers erroneously declare non-const parameter */
+ if (selinux_raw_to_trans_context((char*)arg1, &ap->context))
+ bb_simple_perror_msg(arg1);
+ }
+#endif
+ else {
+ bb_error_msg("unrecognized: %s", arg);
bb_show_usage();
+ }
argv++;
}
return appp;
}
-int find_main(int argc, char **argv);
+int find_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int find_main(int argc, char **argv)
{
- static const char * const options[] = {
- "-follow",
-USE_FEATURE_FIND_XDEV( "-xdev", )
- NULL
+ static const char options[] ALIGN1 =
+ "-follow\0"
+USE_FEATURE_FIND_XDEV( "-xdev\0" )
+USE_FEATURE_FIND_MAXDEPTH("-maxdepth\0")
+ ;
+ enum {
+ OPT_FOLLOW,
+USE_FEATURE_FIND_XDEV( OPT_XDEV ,)
+USE_FEATURE_FIND_MAXDEPTH(OPT_MAXDEPTH,)
};
- bool dereference = FALSE;
char *arg;
char **argp;
int i, firstopt, status = EXIT_SUCCESS;
+#if ENABLE_FEATURE_FIND_MAXDEPTH
+ int maxdepth = INT_MAX;
+#endif
for (firstopt = 1; firstopt < argc; firstopt++) {
if (argv[firstopt][0] == '-')
/* All options always return true. They always take effect
* rather than being processed only when their place in the
* expression is reached.
- * We implement: -follow, -xdev
+ * We implement: -follow, -xdev, -maxdepth
*/
/* Process options, and replace then with -a */
/* (-a will be ignored by recursive parser later) */
argp = &argv[firstopt];
while ((arg = argp[0])) {
- i = index_in_str_array(options, arg);
- if (i == 0) { /* -follow */
- dereference = TRUE;
+ int opt = index_in_strings(options, arg);
+ if (opt == OPT_FOLLOW) {
+ recurse_flags |= ACTION_FOLLOWLINKS;
argp[0] = (char*)"-a";
}
#if ENABLE_FEATURE_FIND_XDEV
- else if (i == 1) { /* -xdev */
+ if (opt == OPT_XDEV) {
struct stat stbuf;
if (!xdev_count) {
xdev_count = firstopt - 1;
}
argp[0] = (char*)"-a";
}
+#endif
+#if ENABLE_FEATURE_FIND_MAXDEPTH
+ if (opt == OPT_MAXDEPTH) {
+ if (!argp[1])
+ bb_show_usage();
+ maxdepth = xatoi_u(argp[1]);
+ argp[0] = (char*)"-a";
+ argp[1] = (char*)"-a";
+ argp++;
+ }
#endif
argp++;
}
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 */
+#if ENABLE_FEATURE_FIND_MAXDEPTH
+ /* double cast suppresses
+ * "cast to ptr from int of different size" */
+ (void*)(ptrdiff_t)maxdepth,/* user data */
+#else
NULL, /* user data */
+#endif
0)) /* depth */
status = EXIT_FAILURE;
}
projects / oweals / busybox.git / blobdiff