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(getcontact,putcontact): Generalize the interface back to an int.

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Add range checks to prevent unexpected results.
This commit is contained in:
Ron Koenderink 2005-11-19 14:55:03 +00:00
parent 4e317e3999
commit 3fd64ccb48
2 changed files with 10 additions and 5 deletions
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10
src/lib/common/nat.c
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@ -31,6 +31,7 @@
* Dave Pare, 1989
*/
#include "prototypes.h"
#include "misc.h"
#include "nat.h"
#include "file.h"
@ -128,7 +129,7 @@ agecontact(struct natstr *np)
}
}
unsigned char
int
getcontact(struct natstr *np, natid them)
{
return np->nat_contact[them];
@ -159,8 +160,13 @@ putreject(struct natstr *np, natid them, int how, int what)
}
void
putcontact(struct natstr *np, natid them, unsigned char contact)
putcontact(struct natstr *np, natid them, int contact)
{
if (CANT_HAPPEN(contact < 0))
contact = 0;
if (CANT_HAPPEN(contact > 255))
contact = 255;
if (np->nat_contact[them] < contact)
np->nat_contact[them] = contact;
}