fixed doubling memory bug for config lines longer then 128

1 files changed, 6 insertions, 7 deletions

diff --git a/sway/readline.c b/sway/readline.c
index be8c35cc..dfdc3fe8 100644
--- a/sway/readline.c
+++ b/sway/readline.c
@@ -3,7 +3,7 @@
 #include <stdio.h>
 
 char *read_line(FILE *file) {
-        int i = 0, length = 0, size = 128;
+        int length = 0, size = 128;
         char *string = malloc(size);
         if (!string) {
                 return NULL;
@@ -16,21 +16,20 @@ char *read_line(FILE *file) {
                 if (c == '\r') {
                         continue;
                 }
-                if (i == size) {
-                        string = realloc(string, length *= 2);
+                if (length == size) {
+                        string = realloc(string, size *= 2);
                         if (!string) {
                                 return NULL;
                         }
                 }
-                string[i++] = (char)c;
-                length++;
+                string[length++] = c;
         }
-        if (i + 1 != size) {
+        if (length + 1 == size) {
                 string = realloc(string, length + 1);
                 if (!string) {
                         return NULL;
                 }
         }
-        string[i] = '\0';
+        string[length] = '\0';
         return string;
 }