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-rw-r--r--src/list_management.c231
1 files changed, 0 insertions, 231 deletions
diff --git a/src/list_management.c b/src/list_management.c
deleted file mode 100644
index d1a93d3..0000000
--- a/src/list_management.c
+++ /dev/null
@@ -1,231 +0,0 @@
-/* SPDX-License-Identifier: Apache-2.0 */
-
-/* Copyright 2025 Thorsten Töpper
- *
- * vim:ts=4:sw=4:expandtab
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <dirent.h>
-#include <sys/stat.h>
-
-#include "output.h"
-#include "list_management.h"
-#include "options.h"
-
-
-
-/* === IMPLEMENTATION === */
-
-inline struct list_node *create_node(char *fname, struct stat *ln_stat) {
- struct list_node *node = NULL;
-
- if (fname == NULL || fname[0] == '\0') {
- LOGERR("ERROR: No valid filename given\n");
- return NULL;
- }
-
- if (ln_stat == NULL) {
- LOGERR("ERROR: No valid file information given\n");
- return NULL;
- }
-
- if ((node = calloc(1, sizeof(struct list_node))) == NULL) {
- LOGERR("ERROR: Failed allocate memory for node: %s\n", strerror(errno));
- return NULL;
- }
-
- node->next = NULL;
- /* With strncpy and strict compiler options it complained. A file name
- * can't be longer than 256 bytes, including the string terminating \0
- * byte at the end. As the code no longer's in the same file...*/
- memcpy(node->fname, fname, 255);
- node->fname[255] = '\0';
- memcpy(&(node->ln_stat), ln_stat, sizeof(struct stat));
- return node;
-}
-
-
-inline void destroy_list(struct list_head *list) {
- struct list_node *ptr = NULL;
- if (list == NULL)
- return;
- while (list->first != NULL) {
- ptr = list->first->next;
- if (ptr == NULL) {
- free(list->first);
- break;
- }
- list->first->next = ptr->next;
- free(ptr);
- }
- free(list);
-}
-
-
-/* dirty... */
-#define INSERT_BY_NUMERIC_FIELD(list, node, field) \
-{ struct list_node *ptr = NULL; \
- if (node->ln_stat.field > list->first->ln_stat.field) { \
- node->next = list->first; list->first = node; return 0; } \
- ptr = list->first; \
- while (ptr != NULL) { \
- if (ptr->next == NULL) { ptr->next = node; return 0; } \
- if (node->ln_stat.field > ptr->next->ln_stat.field) { \
- node->next = ptr->next; ptr->next = node; \
- return 0; } \
- ptr = ptr->next; \
- } \
-}
-
-
-inline int insert_sorted_by_size(struct list_head *list, struct list_node *node) {
- if (list == NULL) { LOGERR("ERROR: No list given.\n"); return -1; }
- if (node == NULL) { LOGERR("ERROR: No node given.\n"); return -2; }
-
- if (list->first == NULL) {
- list->first = node;
- return 0;
- }
- INSERT_BY_NUMERIC_FIELD(list, node, st_size);
- return -3;
-}
-
-inline int insert_sorted_by_time(struct list_head *list, struct list_node *node) {
- if (list == NULL) { LOGERR("ERROR: No list given.\n"); return -1; }
- if (node == NULL) { LOGERR("ERROR: No node given.\n"); return -2; }
-
- if (list->first == NULL) {
- list->first = node;
- return 0;
- }
- switch (option_time_field) {
- case 'm': /* default setting first */
- INSERT_BY_NUMERIC_FIELD(list, node, st_mtim.tv_sec);
- break;
- case 'a':
- INSERT_BY_NUMERIC_FIELD(list, node, st_atim.tv_sec);
- break;
- case 'c':
- INSERT_BY_NUMERIC_FIELD(list, node, st_ctim.tv_sec);
- break;
- default:
- LOGERR("WARNING: option_time_field has invalid value %c 0x%02X - going by default m\n",
- option_time_field, option_time_field);
- INSERT_BY_NUMERIC_FIELD(list, node, st_mtim.tv_sec);
- break;
- };
- return -3;
-}
-
-
-inline struct list_head *create_list_sort_reversed(struct list_head *list) {
- struct list_head *lh = NULL;
- struct list_node *cpynode = NULL, *ptr = NULL;
- if (list == NULL) {
- LOGERR("ERROR: No list given\n");
- return NULL;
- }
- if ((lh = calloc(1, sizeof(struct list_head))) == NULL) {
- LOGERR("ERROR: Failed to allocate memory for a struct list_head\n");
- return NULL;
- }
-
- lh->first = NULL;
- ptr = list->first;
-
- while (ptr != NULL) {
- cpynode = create_node(ptr->fname, &(ptr->ln_stat));
- if (cpynode == NULL) {
- destroy_list(lh);
- return NULL;
- }
- cpynode->next = lh->first;
- lh->first = cpynode;
- ptr = ptr->next;
- }
-
- return lh;
-}
-
-/* This function contains the only time critical code. The loop over
- * the directory content.
- *
- * Note for future:
- * I myself use the dir_monitor in combination with watch on a directory
- * containing temporary data, it may happen that a run into an error occurs,
- * but it's not tragic. To reduce the chance of the error the first step
- * would be to optimize the loop with putting the data into a list in stack
- * form and moving the nodes into a sorted list afterwards.
- */
-struct list_head *get_data_from_directory(char *path) {
- char *fullpath = NULL, *fname_in_path = NULL;
- DIR *dir = NULL;
- size_t l;
- struct dirent *de = NULL;
- struct list_node *tmp = NULL;
- struct list_head *list = NULL;
- struct stat stat_res;
-
- if (path == NULL) {
- LOGERR("ERROR: No path given.\n");
- return NULL;
- }
-
- l = strlen(path);
- /* 258 filename and possibly required PATH_SEP and of course string termination */
- if ((fullpath = calloc(l+258, sizeof(char))) == NULL) {
- LOGERR("ERROR: Failed to allocate memory for list head.\n");
- return NULL;
- }
- sprintf(fullpath, "%s%c", path, ((path[l-1] == PATH_SEP) ? '\0' : PATH_SEP));
- fname_in_path = (fullpath[l] == PATH_SEP) ? &(fullpath[l+1]) : &(fullpath[l]) ;
-
- if ((dir = opendir(path)) == NULL) {
- LOGERR("ERROR: Failed to open directory '%s': %s (errno %d)\n",
- path, strerror(errno), errno);
- return NULL;
- }
-
- /* TBH: In case those few bytes are not available, the process will be killed anyways */
- if ((list = calloc(1, sizeof(struct list_head))) == NULL) {
- LOGERR("ERROR: Failed to allocate memory for list head.\n");
- closedir(dir);
- return NULL;
- }
-
- errno = 0;
- /* Currently the code is specific UNIXoid, needs to be adjusted in case someone ports it. */
- while ((de = readdir(dir)) != NULL) {
- if (de->d_name[0] == '.' && option_show_hidden_entries == false)
- continue;
-
- sprintf(fname_in_path, "%s", de->d_name);
- DBGTRC("DEBUG: fullpath: '%s'\n", fullpath);
- if (lstat(fullpath, &stat_res) != 0) {
- LOGERR("ERROR: lstat call on '%s' failed: %s (errno %d)\n",
- fullpath, strerror(errno), errno);
- continue;
- }
- if ((tmp = create_node(de->d_name, &stat_res)) == NULL) {
- LOGERR("ERROR: Skipping entry %s\n", de->d_name);
- continue;
- }
- /* SORT_BY_SIZE is the default value, always check it first. */
- switch (option_sort_type) {
- case SORT_BY_SIZE:
- insert_sorted_by_size(list, tmp);
- break;
- case SORT_BY_TIME:
- insert_sorted_by_time(list, tmp);
- break;
- };
- }
-
- free(fullpath);
- closedir(dir);
- return list;
-}
-
generated by cgit v1.2.3-70-g09d2 (git 2.51.0) at 2025-12-29 18:31:14 +0000