1 files changed, 26 insertions, 14 deletions

diff --git a/src/commands/tac.c b/src/commands/tac.c
index fbd0f74..d188de9 100644
--- a/src/commands/tac.c
+++ b/src/commands/tac.c
@@ -10,29 +10,36 @@ static void help(void) {
 }
 
 static void print_range(FILE* file, int start, int end) {
-    int len = end - start;
+    int len, i;
+
+    len = end - start;
     fseek(file, start, SEEK_SET);
-    for (int i = 0; i < len; i++) {
+    
+    for (i = 0; i < len; i++) {
         putchar(getc(file));
     }
+    
     fflush(stdout);
 }
 
 static char stdin_path[PATH_MAX];
 
-static FILE* read_stdin() {
+static FILE* read_stdin (void) {
     static bool read;
     static FILE* file;
+    int r;
+    char c;
 
     if (read) goto finished;
     read = true;
     
     srand(time(NULL));
-    int r = rand() % 1000000;
+    
+    r = rand() % 1000000;
+    
     sprintf(stdin_path, "/tmp/%d.tac", r);
     file = get_file(stdin_path, "w");
 
-    char c;
     while((c = getchar()) != EOF) putc(c, file);
     fclose(file);
 
@@ -43,15 +50,15 @@ finished:
 }
 
 static void parse_file(FILE* file, struct Stack* stack) {
-    char buf[1024];
-    int read;
+    char buf[1024], c;
+    int read, i;
     int total = 1;
 
     stack_push_int(stack, 0);
     rewind(file);
     while ((read = fread(buf, 1, 1024, file)) > 0) {
-        for (int i = 0; i < read; i++) {
-            char c = buf[i];
+        for (i = 0; i < read; i++) {
+            c = buf[i];
             if (c != '\n') continue;
             stack_push_int(stack, total + i);
         }
@@ -61,34 +68,39 @@ static void parse_file(FILE* file, struct Stack* stack) {
 
 static void tac_file(FILE* file) {
     struct Stack stack;
+    int last, current;
+    
     stack_init(&stack, 80);
-
     parse_file(file, &stack);
-
     rewind(file);
-    int last, current;
+
     if (!stack_pop_int(&stack, &last)) goto cleanup;
+    
     while(stack_pop_int(&stack, &current)) {
         print_range(file, current, last);
         last = current;
     }
 
 cleanup:
+
     stack_free(&stack);
 }
 
 COMMAND(tac) {
 
+    FILE* in;
+    int i;
+
     parse_help(argc, argv, help);
 
-    FILE* in = read_stdin();
+    in = read_stdin();
 
     if (argc < 1) {
         tac_file(in);
         return EXIT_SUCCESS;
     }
 
-    for (int i = 0; i < argc; i++) {
+    for (i = 0; i < argc; i++) {
         FILE* file = get_file(argv[i], "r");
         if (file == stdin) {
             tac_file(in);