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Add checks for realloc() result

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This commit is contained in:
Christian Bauer 2016-01-31 16:00:57 +01:00
parent 07b8b22c9b
commit b58a9260bd
1 changed files with 3 additions and 0 deletions
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3
cxmon/src/mon_cmd.cpp
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@ -21,6 +21,7 @@
#include "sysdeps.h" #include "sysdeps.h"
#include <stdlib.h> #include <stdlib.h>
#include <assert.h>
#include "mon.h" #include "mon.h"
#include "mon_cmd.h" #include "mon_cmd.h"
@ -84,11 +85,13 @@ start:
if (mon_token == T_STRING) { if (mon_token == T_STRING) {
unsigned n = strlen(mon_string); unsigned n = strlen(mon_string);
str = (uint8 *)realloc(str, (len + n - 1 + GRANULARITY) & ~(GRANULARITY - 1)); str = (uint8 *)realloc(str, (len + n - 1 + GRANULARITY) & ~(GRANULARITY - 1));
assert(str != NULL);
memcpy(str + len, mon_string, n); memcpy(str + len, mon_string, n);
len += n; len += n;
mon_get_token(); mon_get_token();
} else if (mon_expression(&value)) { } else if (mon_expression(&value)) {
str = (uint8 *)realloc(str, (len + GRANULARITY) & ~(GRANULARITY - 1)); str = (uint8 *)realloc(str, (len + GRANULARITY) & ~(GRANULARITY - 1));
assert(str != NULL);
str[len] = value; str[len] = value;
len++; len++;
} else { } else {