fix: memory leaks

Fixes the first two lines in the sha256sum

> *Why dont the checks runnnnnnnnnnnn*

assets/pkg/aur/lidm-bin/.SRCINFO

@@ -1,17 +1,17 @@
 pkgbase = lidm-bin
 	pkgdesc = A fully colorful customizable TUI display manager made in C. (release binary)
-	pkgver = 0.2.0
-	pkgrel = 1
+	pkgver = 0.2.1
+	pkgrel = 2
 	url = https://github.com/javalsai/lidm
 	arch = x86_64
 	license = GPL
 	depends = pam
 	provides = lidm
 	conflicts = lidm
-	source = lidm::https://github.com/javalsai/lidm/releases/download/v0.2.0/lidm-amd64
-	source = default-theme.ini::https://raw.githubusercontent.com/javalsai/lidm/v0.2.0/themes/default.ini
-	source = lidm.1::https://raw.githubusercontent.com/javalsai/lidm/v0.2.0/assets/man/lidm.1
-	source = lidm-config.5::https://raw.githubusercontent.com/javalsai/lidm/v0.2.0/assets/man/lidm-config.5
+	source = lidm::https://github.com/javalsai/lidm/releases/download/v0.2.1/lidm-amd64
+	source = default-theme.ini::https://raw.githubusercontent.com/javalsai/lidm/v0.2.1/themes/default.ini
+	source = lidm.1::https://raw.githubusercontent.com/javalsai/lidm/v0.2.1/assets/man/lidm.1
+	source = lidm-config.5::https://raw.githubusercontent.com/javalsai/lidm/v0.2.1/assets/man/lidm-config.5
 	sha256sums = 65b42f4f7acd970b167fe84d1fa75450b54e01a6f0edddb9d8dd487058a20850
 	sha256sums = 68662430a6d262b35cc54d9f0e164ed935b7f7f4497a87cc94946c558bbe8a91
 	sha256sums = a6807a55ff72ec5a5678583156b3efd0d367f0bcb79854094132771f0cb86bce

assets/pkg/aur/lidm-bin/PKGBUILD

@@ -1,8 +1,8 @@
 # shellcheck disable=SC2034,SC2148,SC2128,SC2154,SC2164
 # Maintainer: javalsai <javalsai@proton.me>
 pkgname=lidm-bin
-pkgver=0.2.0
-pkgrel=1
+pkgver=0.2.1
+pkgrel=2
 depends=('pam')
 pkgdesc="A fully colorful customizable TUI display manager made in C. (release binary)"
 arch=('x86_64')

assets/pkg/aur/lidm-git/PKGBUILD

@@ -1,7 +1,7 @@
 # shellcheck disable=SC2034,SC2148,SC2128,SC2154,SC2164
 # Maintainer: javalsai <javalsai@proton.me>
 pkgname=lidm-git
-pkgver=0.2.0.r2.g255256b
+pkgver=0.2.1.r0.ge2014f4
 pkgrel=1
 depends=('pam')
 makedepends=('git' 'make' 'gcc')

assets/pkg/aur/lidm/.SRCINFO

@@ -1,6 +1,6 @@
 pkgbase = lidm
 	pkgdesc = A fully colorful customizable TUI display manager made in C. (build latest tag)
-	pkgver = 0.2.0
+	pkgver = 0.2.1
 	pkgrel = 1
 	url = https://github.com/javalsai/lidm
 	arch = any
@@ -8,7 +8,7 @@ pkgbase = lidm
 	makedepends = git
 	makedepends = gcc
 	depends = pam
-	source = tarball.tar.gz::https://github.com/javalsai/lidm/archive/refs/tags/v0.2.0.tar.gz
-	sha256sums = 6d397cf75cafdcb95e5a2623d70f2e07bbb085a07b7c3b743caac06454ed7b16
+	source = tarball.tar.gz::https://github.com/javalsai/lidm/archive/refs/tags/v0.2.1.tar.gz
+	sha256sums = 56aaf8025fac16f5deef3058274635198fc3bf3f7eadc1de5c6539614f03d84b
 
 pkgname = lidm

assets/pkg/aur/lidm/PKGBUILD

@@ -1,7 +1,7 @@
 # shellcheck disable=SC2034,SC2148,SC2128,SC2154,SC2164
 # Maintainer: javalsai <javalsai@proton.me>
 pkgname=lidm
-pkgver=0.2.0
+pkgver=0.2.1
 pkgrel=1
 depends=('pam')
 makedepends=('git' 'gcc')
@@ -10,7 +10,7 @@ arch=('any')
 url="https://github.com/javalsai/lidm"
 license=('GPL')
 source=("tarball.tar.gz::https://github.com/javalsai/lidm/archive/refs/tags/v$pkgver.tar.gz")
-sha256sums=('6d397cf75cafdcb95e5a2623d70f2e07bbb085a07b7c3b743caac06454ed7b16')
+sha256sums=('56aaf8025fac16f5deef3058274635198fc3bf3f7eadc1de5c6539614f03d84b')
 
 build() {
     tar -xzf "tarball.tar.gz"

include/util.h

@@ -14,18 +14,20 @@ void read_press(u_char *, char *);
 void strcln(char **dest, const char *source);
 
 struct Vector {
-    uint32_t length;
-    uint32_t alloc_len;
-    uint16_t alloc_size;
-    void** pages;
+  uint32_t length;
+  uint32_t capacity;
+  void **pages;
 };
 
 struct Vector vec_new();
-int vec_push(struct Vector*, void* item);
-void vec_free(struct Vector*);
-void vec_clear(struct Vector*);
-void vec_reset(struct Vector*);
-void* vec_pop(struct Vector*); // won't free it, nor shrink vec list space
-void* vec_get(struct Vector*, size_t index);
+int vec_resize(struct Vector *, size_t size);
+int vec_reserve(struct Vector *, size_t size);
+int vec_reserve_exact(struct Vector *, size_t size);
+int vec_push(struct Vector *, void *item);
+void vec_free(struct Vector *);
+void vec_clear(struct Vector *);
+void vec_reset(struct Vector *);
+void *vec_pop(struct Vector *); // won't free it, nor shrink vec list space
+void *vec_get(struct Vector *, size_t index);
 
 #endif

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;
@@ -27,23 +35,34 @@ bool line_parser(FILE *fd, ssize_t *blksize,
       free(buf);
       return false;
     }
-    if ((read = sscanf(buf, "%[^ ] = %[^\n]\n", key, buf)) != 0) {
-      u_char ret = cb(key, buf);
+    char *value = malloc(read_size);
+    if (value == NULL) {
+      free(buf);
+      return false;
+    }
+    if ((read = sscanf(buf, "%[^ ] = %[^\n]\n", key, value)) != 0) {
+      u_char ret = cb(key, value);
       if (ret & 0b0100)
         free(key);
       if (ret & 0b0010)
+        free(value);
+      if (ret & 0b1000) {
         free(buf);
-      if (ret & 0b1000)
         return false;
-      if (ret & 0b0001)
+      }
+      if (ret & 0b0001) {
+        free(buf);
         break;
+      }
     }
+    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;
@@ -85,13 +104,16 @@ u_char config_line_handler(char *k, char *v) {
     __config->theme.chars.cbl = v;
   else if (strcmp(k, "chars.cbr") == 0)
     __config->theme.chars.cbr = v;
-  else if (strcmp(k, "functions.poweroff") == 0)
+  else if (strcmp(k, "functions.poweroff") == 0) {
     __config->functions.poweroff = find_keyname(v);
-  else if (strcmp(k, "functions.reboot") == 0)
+    return 0b0110;
+  } else if (strcmp(k, "functions.reboot") == 0) {
     __config->functions.reboot = find_keyname(v);
-  else if (strcmp(k, "functions.refresh") == 0)
+    return 0b0110;
+  } else if (strcmp(k, "functions.refresh") == 0) {
     __config->functions.refresh = find_keyname(v);
-  else if (strcmp(k, "strings.f_poweroff") == 0)
+    return 0b0110;
+  } 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;
@@ -107,16 +129,17 @@ u_char config_line_handler(char *k, char *v) {
     __config->strings.s_xorg = v;
   else if (strcmp(k, "strings.s_shell") == 0)
     __config->strings.s_shell = v;
-  else if (strcmp(k, "behavior.include_defshell") == 0)
+  else if (strcmp(k, "behavior.include_defshell") == 0) {
     __config->behavior.include_defshell = strcmp(v, "true") == 0;
-  else if (strcmp(k, "behavior.source") == 0)
+    return 0b0110;
+  } 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);
@@ -63,28 +64,44 @@ static int fn(const char *fpath, const struct stat *sb, int typeflag) {
     }
 
     uint read;
-    char *key = malloc(read_size);
-    if ((read = sscanf(buf, "%[^=]=%[^\n]\n", key, buf)) != 0) {
+    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;
-        name_buf = realloc(buf, read);
+        name_buf = realloc(value, strlen(value) + sizeof(char));
       } else if (strcmp(key, "Exec") == 0) {
         found &= 0b010;
-        exec_buf = realloc(buf, read);
+        exec_buf = realloc(value, strlen(value) + sizeof(char));
       } else if (strcmp(key, "TryExec") == 0) {
         found &= 0b100;
-        tryexec_buf = realloc(buf, read);
-      } else
-        free(buf);
-    } else
-      free(buf);
+        tryexec_buf = realloc(value, strlen(value) + sizeof(char));
+      } else {
+        free(value);
+      }
+    } else {
+      free(value);
+    }
     free(key);
-
-    if (found == 0b111)
-      break;
+    free(buf);
+    if (found == 0b111) break;
   }
   /*printf("\nend parsing...\n");*/
 
+  // Generic handling of exit
+
   fclose(fd);
 
   // just add this to the list
@@ -108,6 +125,7 @@ static int fn(const char *fpath, const struct stat *sb, int typeflag) {
 // This code is designed to be run purely single threaded
 struct Vector get_avaliable_sessions() {
   struct Vector sessions = vec_new();
+  vec_reserve(&sessions, 8);
 
   cb_sessions = &sessions;
   for (size_t i = 0; i < (sizeof(sources) / sizeof(sources[0])); i++) {

src/ui.c

@@ -322,6 +322,7 @@ void ffield_type(char *text) {
   print_ffield();
 }
 
+static char* unknown_str = "unknown";
 int load(struct Vector *users, struct Vector *sessions) {
   /// SETUP
   gusers = users;
@@ -331,9 +332,9 @@ int load(struct Vector *users, struct Vector *sessions) {
   char *hostname = malloc(16);
   if (gethostname(hostname, 16) != 0) {
     free(hostname);
-    hostname = "unknown";
+    hostname = unknown_str;
   } else {
-    hostname = realloc(hostname, strlen(hostname) + 1);
+    hostname[15] = '\0';
   }
 
   of_session = ofield_new(sessions->length + behavior.include_defshell);
@@ -350,12 +351,14 @@ int load(struct Vector *users, struct Vector *sessions) {
   printf("\x1b[%d;%dH\x1b[%sm%s\x1b[%sm", boxstart.y + 2,
          boxstart.x + 12 - (uint)strlen(hostname), theme.colors.e_hostname,
          hostname, theme.colors.fg);
+  if(hostname != unknown_str) free(hostname);
 
   // put date
   char *fmtd_time = fmt_time();
   printf("\x1b[%d;%dH\x1b[%sm%s\x1b[%sm", boxstart.y + 2,
          boxstart.x + boxw - 3 - (uint)strlen(fmtd_time), theme.colors.e_date,
          fmtd_time, theme.colors.fg);
+  free(fmtd_time);
 
   print_field(SESSION);
   print_field(USER);

src/users.c

@@ -23,6 +23,7 @@ static struct user __new_user(struct passwd *p) {
 // This code is designed to be run purely single threaded
 struct Vector get_human_users() {
   struct Vector users = vec_new();
+  vec_reserve(&users, 4);
 
   struct passwd *pwd;
   while ((pwd = getpwent()) != NULL) {

src/util.c

@@ -68,58 +68,77 @@ static int selret_magic() {
   return select(1, &set, NULL, NULL, &timeout);
 }
 
-
 // Vector shii
 struct Vector vec_new() {
   struct Vector vec;
-  vec_clear(&vec);
+  vec_reset(&vec);
   return vec;
 }
 
-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);
-    if (new_location != NULL) {
-      vec->alloc_size = new_size;
-      vec->pages = new_location;
-    } else {
-      return -1;
-    }
+int vec_resize(struct Vector *vec, size_t size) {
+  void **new_location = realloc(vec->pages, size * sizeof(void*));
+  if (new_location != NULL) {
+    if (vec->length > size)
+      vec->length = size;
+    vec->capacity = size;
+    vec->pages = new_location;
+  } else {
+    return -1;
   }
-
-  vec->pages[vec->length] = item;
-  vec->length++;
   return 0;
 }
 
-void vec_free(struct Vector* vec) {
-  while(vec->length > 0)
+int vec_reserve(struct Vector *vec, size_t size) {
+  uint32_t new_capacity = vec->capacity;
+  while (vec->length + size > new_capacity) {
+    new_capacity = new_capacity + (new_capacity >> 1) + 1; // cap * 1.5 + 1; 0 1 2 4 7 11...
+  }
+  return vec_resize(vec, new_capacity);
+}
+
+int vec_reserve_exact(struct Vector *vec, size_t size) {
+  uint32_t needed_capacity = vec->length + size;
+  if (vec->capacity < needed_capacity) {
+    return vec_resize(vec, needed_capacity);
+  } else {
+    return 0;
+  }
+}
+
+int vec_push(struct Vector *vec, void *item) {
+  int res_ret = vec_reserve(vec, 1);
+  if(res_ret != 0) return res_ret;
+
+  vec->pages[vec->length++] = item;
+  return 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->capacity = 0;
   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;