Hash :
8def86d1
Author :
Thomas de Grivel
Date :
2025-09-24T00:44:42
fix pdf_name_delete_all use after free
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91
/* kc3
* Copyright from 2022 to 2025 kmx.io <contact@kmx.io>
*
* Permission is hereby granted to use this software granted the above
* copyright notice and this permission paragraph are included in all
* copies and substantial portions of this software.
*
* THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
* PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
* AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
* THIS SOFTWARE.
*/
#include "../libkc3/kc3.h"
#include "pdf_name.h"
p_pdf_name_list g_pdf_name_list = NULL;
p_pdf_name pdf_name_1 (p_pdf_name_list *name_list, const char *pchar)
{
s_str str;
str_init_1(&str, NULL, pchar);
return pdf_name_from_str(name_list, &str);
}
void kc3_pdf_name_list_delete_all (void)
{
pdf_name_list_delete_all(&g_pdf_name_list);
}
p_pdf_name pdf_name_find (p_pdf_name_list *name_list,
const s_str *str)
{
p_pdf_name_list list;
assert(name_list);
assert(str);
list = *name_list;
while (list) {
p_pdf_name name = list->sym;
if (compare_str(str, &name->str) == 0)
return name;
list = list->next;
}
return NULL;
}
p_pdf_name pdf_name_from_str (p_pdf_name_list *name_list,
const s_str *str)
{
p_pdf_name name;
assert(str);
if (! name_list)
name_list = &g_pdf_name_list;
if (! (name = pdf_name_find(name_list, str)))
name = pdf_name_new(name_list, str);
return name;
}
void pdf_name_list_delete_all (p_pdf_name_list *name_list)
{
p_pdf_name_list list;
p_pdf_name_list next;
assert(name_list);
list = *name_list;
while (list) {
next = list->next;
sym_delete(list->free_sym);
free(list);
list = next;
}
*name_list = NULL;
}
p_pdf_name pdf_name_new (p_pdf_name_list *name_list,
const s_str *str)
{
s_sym *sym;
s_sym_list *tmp;
if (! (sym = alloc(sizeof(s_sym))))
return NULL;
if (! (tmp = alloc(sizeof(s_sym_list)))) {
free(sym);
return NULL;
}
str_init_copy(&sym->str, str);
tmp->sym = sym;
tmp->free_sym = sym;
tmp->next = *name_list;
*name_list = tmp;
return sym;
}