diff options
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/recursive_action.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/libbb/recursive_action.c b/libbb/recursive_action.c index 513aff3..fe9ba2e 100644 --- a/libbb/recursive_action.c +++ b/libbb/recursive_action.c @@ -34,9 +34,19 @@ static int true_action(const char *fileName ATTRIBUTE_UNUSED, * recursive_action() return 0, but it doesn't stop directory traversal * (fileAction/dirAction will be called on each file). * - * if !depthFirst, dirAction return value of 0 (FALSE) or 2 (SKIP) - * prevents recursion into that directory, instead - * recursive_action() returns 0 (if FALSE) or 1 (if SKIP). + * If !ACTION_RECURSE, dirAction is called on the directory and its + * return value is returned from recursive_action(). No recursion. + * + * If ACTION_RECURSE, recursive_action() is called on each directory. + * If any one of these calls returns 0, current recursive_action() returns 0. + * + * If ACTION_DEPTHFIRST, dirAction is called after recurse. + * If it returns 0, the warning is printed and recursive_action() returns 0. + * + * If !ACTION_DEPTHFIRST, dirAction is called before we recurse. + * Return value of 0 (FALSE) or 2 (SKIP) prevents recursion + * into that directory, instead recursive_action() returns 0 (if FALSE) + * or 1 (if SKIP) * * followLinks=0/1 differs mainly in handling of links to dirs. * 0: lstat(statbuf). Calls fileAction on link name even if points to dir. @@ -59,7 +69,8 @@ int recursive_action(const char *fileName, if (!dirAction) dirAction = true_action; status = ACTION_FOLLOWLINKS; /* hijack a variable for bitmask... */ - if (!depth) status = ACTION_FOLLOWLINKS | ACTION_FOLLOWLINKS_L0; + if (!depth) + status = ACTION_FOLLOWLINKS | ACTION_FOLLOWLINKS_L0; status = ((flags & status) ? stat : lstat)(fileName, &statbuf); if (status < 0) { #ifdef DEBUG_RECURS_ACTION @@ -105,8 +116,9 @@ int recursive_action(const char *fileName, nextFile = concat_subpath_file(fileName, next->d_name); if (nextFile == NULL) continue; - /* now descend into it (NB: ACTION_RECURSE is set in flags) */ - if (!recursive_action(nextFile, flags, fileAction, dirAction, userData, depth+1)) + /* process every file (NB: ACTION_RECURSE is set in flags) */ + if (!recursive_action(nextFile, flags, fileAction, dirAction, + userData, depth + 1)) status = FALSE; free(nextFile); } @@ -117,9 +129,7 @@ int recursive_action(const char *fileName, goto done_nak_warn; } - if (!status) - return FALSE; - return TRUE; + return status; done_nak_warn: bb_simple_perror_msg(fileName); |