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find: fix handling of -prune

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recursive_actions: uppercase flag constants
This commit is contained in:
Denis Vlasenko
2007-04-08 10:52:28 +00:00
parent ca3484103e
commit bbd695d801
9 changed files with 71 additions and 59 deletions
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68
findutils/find.c
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@@ -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 */