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catch attempts to use freed strings

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This commit is contained in:
Bill Currie 2005-04-30 08:37:55 +00:00
parent e500935f1f
commit f38fcd9086
1 changed files with 9 additions and 3 deletions
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12
libs/gamecode/engine/pr_strings.c
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@ -47,6 +47,7 @@ static __attribute__ ((unused)) const char rcsid[] =
#include "QF/progs.h"
typedef enum {
str_free,
str_static,
str_dynamic,
str_mutable,
@ -237,16 +238,19 @@ static inline strref_t *
get_strref (progs_t *pr, int num)
{
if (num < 0) {
strref_t *ref;
unsigned int row = ~num / 1024;
num = ~num % 1024;
if (row >= pr->dyn_str_size)
return 0;
return &pr->string_map[row][num];
} else {
return 0;
ref = &pr->string_map[row][num];
if (ref->type == str_free)
return 0;
return ref;
}
return 0;
}
static inline const char *
@ -264,6 +268,8 @@ get_string (progs_t *pr, int num)
return ref->s.string;
case str_mutable:
return ref->s.dstring->str;
case str_free:
break;
}
PR_Error (pr, "internal string error");
} else {