add common alloc functions and handle cli argument

ccc.c

@@ -44,6 +44,7 @@ bool to_open_file = false;
 bool dirs_size = DIRS_SIZE;
 bool show_hidden = SHOW_HIDDEN;
 bool file_details = SHOW_DETAILS;
+char *argv_cp;
 char *trash_dir;
 char *cwd;
 char *p_cwd; /* previous cwd */
@@ -73,9 +74,14 @@ int main(int argc, char** argv)
         if (S_ISDIR(st.st_mode) && chdir(argv[1])) {
             perror("ccc");
             die("Error from chdir");
+        } else if (S_ISREG(st.st_mode)) {
+            argv_cp = estrdup(argv[1]);
+            char *last_slash = strrchr(argv_cp, '/');
+            *last_slash = '\0';
+            if (chdir(argv[1])) {
+                perror("ccc");
+                die("Error from chdir");
             }
-        if (S_ISREG(st.st_mode)) {
-//            char *rm_f_name = strrchr(argv[1], '/');
             to_open_file = true;
         }
     }
@@ -125,7 +131,7 @@ int main(int argc, char** argv)
     
     populate_files(cwd, 0);
     if (to_open_file) {
-        current_selection = arraylist_search(files, argv[1], true);
+        current_selection = arraylist_search(files, argv_cp, true);
         highlight_current_line();
     }
 
@@ -439,10 +445,7 @@ void change_dir(const char *buf, int selection, int ftype)
 {
     char *buf_dup;
     if (buf == p_cwd) {
-        buf_dup = strdup(p_cwd);
-        if (buf_dup == NULL) {
-            return;
-        }
+        buf_dup = estrdup(p_cwd);
     } else {
         buf_dup = (char *) buf;
     }
@@ -656,6 +659,9 @@ void add_file_stat(char *filename, char *path, int ftype)
     }
     /* get file mode string */
     char *mode_str = get_file_mode(file_stat.st_mode);
+    if (mode_str[0] == '-' && (mode_str[3] == 'x' || mode_str[6] == 'x' || mode_str[9] == 'x')) {
+        
+    }
 
     /* mode_str(11) + time(17) + size_size + 2 spaces + 1 null */
     size_t stat_size = 11 * sizeof(char) + time_size + size_size + 3 * sizeof(char);

file.c

@@ -83,31 +83,16 @@ void arraylist_add(ArrayList *list, char *name, char *path, char *stats, char *t
     char *stats_cp = NULL;
     wchar_t *icon_cp = NULL;
 
-    if (name != NULL) {
-        name_cp = strdup(name);
-        if (name_cp == NULL)
-            perror("can't add name to arraylist");
-    }
-    if (path != NULL) {
-        path_cp = strdup(path);
-        if (path_cp == NULL)
-            perror("can't add path to arraylist");
-    }
-    if (type != NULL) {
-        type_cp = strdup(type);
-        if (type_cp == NULL)
-            perror("can't add type to arraylist");
-    }
-    if (stats != NULL) {
-        stats_cp = strdup(stats);
-        if (stats_cp == NULL)
-            perror("can't add stats to arraylist");
-    }
-    if (icon != NULL) {
-        icon_cp = wcsdup(icon);
-        if (icon_cp == NULL)
-            perror("can't add icon to arraylist");
-    }
+    if (name != NULL)
+        name_cp = estrdup(name);
+    if (path != NULL)
+        path_cp = estrdup(path);
+    if (type != NULL)
+        type_cp = estrdup(type);
+    if (stats != NULL)
+        stats_cp = estrdup(stats);
+    if (icon != NULL)
+        icon_cp = ewcsdup(icon);
 
     /* name, path, stats, type, icon, color */
     file new_file = { name_cp, path_cp, type_cp, stats_cp, icon_cp, color };
@@ -145,18 +130,14 @@ void arraylist_add(ArrayList *list, char *name, char *path, char *stats, char *t
 char *get_line(ArrayList *list, long index, bool detail)
 {
     file file = list->items[index];
-    char *name = strdup(file.name);
-    wchar_t *icon = wcsdup(file.icon);
-    if (name == NULL || icon == NULL)
-        perror("ccc");
+    char *name = estrdup(file.name);
+    wchar_t *icon = ewcsdup(file.icon);
 
     size_t name_len = strlen(name);
     char *stats = NULL;
     size_t length;
     if (detail) {
-        stats = strdup(file.stats);
-        if (stats == NULL)
-            perror("ccc");
+        stats = estrdup(file.stats);
         length = name_len + strlen(stats) + 7;   /* 4 for icon, 2 for space and 1 for null */
     } else {
         length = name_len + 6;   /* 4 for icon, 1 for space and 1 for null */

util.c

@@ -1,5 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
 
 void die(char *reason)
 {
@@ -11,18 +13,37 @@ void *memalloc(size_t size)
 {
     void *ptr = malloc(size);
     if (!ptr) {
-        fprintf(stderr, "ccc: Error allocating memory\n");
+        perror("ccc");
         exit(EXIT_FAILURE);
     }
     return ptr;
 }
 
+void *estrdup(void *ptr)
+{
+    void *duped = strdup(ptr);
+    if (!duped) {
+        perror("ccc");
+        exit(EXIT_FAILURE);
+    }
+    return duped;
+}
+
+void *ewcsdup(void *ptr)
+{
+    void *duped = wcsdup(ptr);
+    if (!duped) {
+        perror("ccc");
+        exit(EXIT_FAILURE);
+    }
+    return duped;
+}
+
 void *rememalloc(void *ptr, size_t size)
 {
     ptr = realloc(ptr, size);
     if (!ptr) {
         perror("ccc");
-        fprintf(stderr, "ccc: Error allocating memory\n");
         exit(EXIT_FAILURE);
     }
     return ptr;

util.h

@@ -5,6 +5,8 @@
 
 void die(char *reason);
 void *memalloc(size_t size);
+void *estrdup(void *ptr);
+void *ewcsdup(void *ptr);
 void *rememalloc(void *ptr, size_t size);
 
 #endif