fix: address mem issues

src/config.c

@@ -4,6 +4,14 @@
 #include "config.h"
 #include "util.h"
 
+// Alr so ima explain the bitfield returned by `cb` a bit
+// 4 bits:
+//  0b0001: break out of parsing (returning true)
+//  0b0010: free the value
+//  0b0100: free the key
+//  0b1000: break out of parsing (returning false)
+//
+// This would return true if everything goes fine, false otherwise (malloc error, broke parsing, etc)
 bool line_parser(FILE *fd, ssize_t *blksize,
                  u_char (*cb)(char *key, char *value)) {
   size_t opt_size = 4096;
@@ -41,19 +49,20 @@ bool line_parser(FILE *fd, ssize_t *blksize,
       if (ret & 0b1000) {
         free(buf);
         return false;
-	    }
-	    if (ret & 0b0001) {
-		    free(buf);
+      }
+      if (ret & 0b0001) {
+        free(buf);
         break;
-	    }
+      }
     }
-	  free(buf);
+    free(buf);
   }
 
   return true;
 }
 
 struct config *__config;
+// Yanderedev code (wanna fix this with a table or smth)
 u_char config_line_handler(char *k, char *v) {
   if (strcmp(k, "colors.bg") == 0)
     __config->theme.colors.bg = v;
@@ -98,16 +107,13 @@ u_char config_line_handler(char *k, char *v) {
   else if (strcmp(k, "functions.poweroff") == 0) {
     __config->functions.poweroff = find_keyname(v);
     return 0b0110;
-  }
-  else if (strcmp(k, "functions.reboot") == 0) {
+  } else if (strcmp(k, "functions.reboot") == 0) {
     __config->functions.reboot = find_keyname(v);
     return 0b0110;
-  }
-  else if (strcmp(k, "functions.refresh") == 0) {
+  } else if (strcmp(k, "functions.refresh") == 0) {
     __config->functions.refresh = find_keyname(v);
     return 0b0110;
-  }
-  else if (strcmp(k, "strings.f_poweroff") == 0)
+  } else if (strcmp(k, "strings.f_poweroff") == 0)
     __config->strings.f_poweroff = v;
   else if (strcmp(k, "strings.f_reboot") == 0)
     __config->strings.f_reboot = v;
@@ -126,15 +132,14 @@ u_char config_line_handler(char *k, char *v) {
   else if (strcmp(k, "behavior.include_defshell") == 0) {
     __config->behavior.include_defshell = strcmp(v, "true") == 0;
     return 0b0110;
-  }
-  else if (strcmp(k, "behavior.source") == 0)
+  } else if (strcmp(k, "behavior.source") == 0)
     vec_push(&__config->behavior.source, v);
   else if (strcmp(k, "behavior.user_source") == 0)
     vec_push(&__config->behavior.user_source, v);
   else
     return 0b1111;
 
-  return 0b100;
+  return 0b0100;
 }
 
 struct config *parse_config(char *path) {

src/sessions.c

@@ -54,6 +54,7 @@ static int fn(const char *fpath, const struct stat *sb, int typeflag) {
   char *exec_buf = NULL;
   char *tryexec_buf = NULL;
   // This should be made a specific function
+  // Emm, if anything goes wrong just free the inner loop and `break;` fd and the rest is handled after
   while (true) {
     char *buf = malloc(sb->st_blksize);
     ssize_t read_size = getline(&buf, &alloc_size, fd);
@@ -64,7 +65,19 @@ static int fn(const char *fpath, const struct stat *sb, int typeflag) {
 
     uint read;
     char *key = malloc(read_size + sizeof(char));
+    if(key == NULL) {
+      free(buf);
+      // TODO: more sophisticated error handling??
+      break;
+    }
     char *value = malloc(read_size + sizeof(char));
+    if(value == NULL) {
+      free(buf);
+      free(key);
+      // TODO: more sophisticated error handling??
+      break;
+    }
+    value[0] = '\0'; // I'm not sure if sscanf would null this string out
     if ((read = sscanf(buf, "%[^=]=%[^\n]\n", key, value)) != 0) {
       if (strcmp(key, "Name") == 0) {
         found &= 0b001;
@@ -78,13 +91,17 @@ static int fn(const char *fpath, const struct stat *sb, int typeflag) {
       } else {
         free(value);
       }
-	}
+    } else {
+      free(value);
+    }
     free(key);
-	  free(buf);
+    free(buf);
     if (found == 0b111) break;
   }
   /*printf("\nend parsing...\n");*/
 
+  // Generic handling of exit
+
   fclose(fd);
 
   // just add this to the list

src/util.c

@@ -68,7 +68,6 @@ static int selret_magic() {
   return select(1, &set, NULL, NULL, &timeout);
 }
 
-
 // Vector shii
 struct Vector vec_new() {
   struct Vector vec;
@@ -76,7 +75,7 @@ struct Vector vec_new() {
   return vec;
 }
 
-int vec_push(struct Vector* vec, void* item) {
+int vec_push(struct Vector *vec, void *item) {
   if (vec->length >= vec->alloc_len) {
     uint32_t new_size = vec->alloc_len + vec->alloc_size;
     void **new_location = realloc(vec->pages, vec->alloc_size);
@@ -93,33 +92,33 @@ int vec_push(struct Vector* vec, void* item) {
   return 0;
 }
 
-void vec_free(struct Vector* vec) {
-  while(vec->length > 0)
+void vec_free(struct Vector *vec) {
+  while (vec->length > 0)
     free(vec->pages[--vec->length]);
 
   vec_clear(vec);
 }
 
-void vec_clear(struct Vector* vec) {
+void vec_clear(struct Vector *vec) {
   free(vec->pages);
   vec_reset(vec);
 }
 
-void vec_reset(struct Vector* vec) {
+void vec_reset(struct Vector *vec) {
   vec->length = 0;
   vec->alloc_len = 0;
   vec->alloc_size = 4096; // 4KiB page size?
   vec->pages = NULL;
 }
 
-void* vec_pop(struct Vector* vec) {
+void *vec_pop(struct Vector *vec) {
   if (vec->length == 0)
     return NULL;
 
   return vec->pages[--vec->length];
 }
 
-void* vec_get(struct Vector* vec, size_t index) {
+void *vec_get(struct Vector *vec, size_t index) {
   if (index >= vec->length)
     return NULL;