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recursive_action: preparatory changes. will introduce "int level".

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This commit is contained in:
Denis Vlasenko 2006-10-27 17:59:14 +00:00
parent 51b4c92f80
commit 3b8fc1c582
1 changed files with 49 additions and 51 deletions
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100
libbb/recursive_action.c
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@ -22,20 +22,27 @@
* and so isn't sufficiently portable to take over since glibc2.1
* is so stinking huge.
*/
static int true_action(const char *fileName, struct stat *statbuf, void* userData)
{
return TRUE;
}
int recursive_action(const char *fileName,
int recurse, int followLinks, int depthFirst,
int (*fileAction) (const char *fileName, struct stat * statbuf, void* userData),
int (*dirAction) (const char *fileName, struct stat * statbuf, void* userData),
void* userData)
{
int status;
struct stat statbuf;
int status;
DIR *dir;
struct dirent *next;
if (followLinks)
status = stat(fileName, &statbuf);
else
status = lstat(fileName, &statbuf);
if (!fileAction) fileAction = true_action;
if (!dirAction) dirAction = true_action;
status = (followLinks ? stat : lstat)(fileName, &statbuf);
if (status < 0) {
#ifdef DEBUG_RECURS_ACTION
@ -47,63 +54,54 @@ int recursive_action(const char *fileName,
}
if (!followLinks && (S_ISLNK(statbuf.st_mode))) {
if (fileAction == NULL)
return TRUE;
else
return fileAction(fileName, &statbuf, userData);
return fileAction(fileName, &statbuf, userData);
}
if (!recurse) {
if (S_ISDIR(statbuf.st_mode)) {
if (dirAction != NULL)
return (dirAction(fileName, &statbuf, userData));
else
return TRUE;
return dirAction(fileName, &statbuf, userData);
}
}
if (S_ISDIR(statbuf.st_mode)) {
DIR *dir;
if (!S_ISDIR(statbuf.st_mode))
return fileAction(fileName, &statbuf, userData);
if (dirAction != NULL && !depthFirst) {
status = dirAction(fileName, &statbuf, userData);
if (!status) {
bb_perror_msg("%s", fileName);
return FALSE;
} else if (status == SKIP)
return TRUE;
}
dir = opendir(fileName);
if (!dir) {
if (!depthFirst) {
status = dirAction(fileName, &statbuf, userData);
if (!status) {
bb_perror_msg("%s", fileName);
return FALSE;
}
status = TRUE;
while ((next = readdir(dir)) != NULL) {
char *nextFile;
nextFile = concat_subpath_file(fileName, next->d_name);
if(nextFile == NULL)
continue;
if (!recursive_action(nextFile, TRUE, followLinks, depthFirst,
fileAction, dirAction, userData)) {
status = FALSE;
}
free(nextFile);
}
closedir(dir);
if (dirAction != NULL && depthFirst) {
if (!dirAction(fileName, &statbuf, userData)) {
bb_perror_msg("%s", fileName);
return FALSE;
}
}
if (!status)
return FALSE;
} else {
if (fileAction == NULL)
if (status == SKIP)
return TRUE;
else
return fileAction(fileName, &statbuf, userData);
}
dir = opendir(fileName);
if (!dir) {
return FALSE;
}
status = TRUE;
while ((next = readdir(dir)) != NULL) {
char *nextFile;
nextFile = concat_subpath_file(fileName, next->d_name);
if (nextFile == NULL)
continue;
if (!recursive_action(nextFile, TRUE, followLinks, depthFirst,
fileAction, dirAction, userData)) {
status = FALSE;
}
free(nextFile);
}
closedir(dir);
if (depthFirst) {
if (!dirAction(fileName, &statbuf, userData)) {
bb_perror_msg("%s", fileName);
return FALSE;
}
}
if (!status)
return FALSE;
return TRUE;
}