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be careful not to malloc 0 bytes

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@2232 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1997-07-13 01:10:14 +00:00
parent 3fc7f232be
commit 1cf420800d
1 changed files with 14 additions and 9 deletions
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21
lib/krb5/data.c
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@@ -21,9 +21,12 @@ krb5_error_code
krb5_data_alloc(krb5_data *p, int len)
{
krb5_data_free(p);
p->data = (krb5_pointer)malloc(len);
if(!p->data)
return ENOMEM;
if (len) {
p->data = (krb5_pointer)malloc(len);
if(!p->data)
return ENOMEM;
} else
p->data = NULL;
p->length = len;
return 0;
}
@@ -44,11 +47,13 @@ krb5_error_code
krb5_data_copy(krb5_data *p, void *data, size_t len)
{
krb5_data_free(p);
p->data = (krb5_pointer)malloc(len);
if(!p->data)
return ENOMEM;
memmove(p->data, data, len);
if (len) {
p->data = (krb5_pointer)malloc(len);
if(!p->data)
return ENOMEM;
memmove(p->data, data, len);
} else
p->data = NULL;
p->length = len;
return 0;
}