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-rw-r--r--Changelog-Trunk.txt1
-rw-r--r--src/map/atcommand.c46
-rw-r--r--src/map/charcommand.c52
3 files changed, 76 insertions, 23 deletions
diff --git a/Changelog-Trunk.txt b/Changelog-Trunk.txt
index a5d2ab0c1..049e73428 100644
--- a/Changelog-Trunk.txt
+++ b/Changelog-Trunk.txt
@@ -4,6 +4,7 @@ AS OF SVN REV. 5091, WE ARE NOW USING TRUNK. ALL UNTESTED BUGFIXES/FEATURES GO
IF YOU HAVE A WORKING AND TESTED BUGFIX PUT IT INTO STABLE AS WELL AS TRUNK.
2008/10/27
+ * Fixed all overflow checks and made the code a bit cleaner from r13322. [Paradox924X]
* Removed leftovers of "bLoseSPWhenUnequip" and "bDamageWhenUnequip". [Paradox924X]
2008/10/24
* Added protection from segfault by int overflow in charcommand heal and fixed a typo in atcommand heal. (Follow-up to r13321) [Paradox924X]
diff --git a/src/map/atcommand.c b/src/map/atcommand.c
index 260288690..e37c712af 100644
--- a/src/map/atcommand.c
+++ b/src/map/atcommand.c
@@ -1505,7 +1505,7 @@ int atcommand_heal(const int fd, struct map_session_data* sd, const char* comman
sscanf(message, "%d %d", &hp, &sp);
if ( ( hp == 0 && sp == 0 )
- || ( hp > 2147483647 || sp > 2147483647 ) ) { // Prevent overflow. [Paradox924X]
+ || ( hp > INT_MAX && sp > INT_MAX ) ) { // Prevent overflow. [Paradox924X]
if (!status_percent_heal(&sd->bl, 100, 100))
clif_displaymessage(fd, msg_txt(157)); // HP and SP have already been recovered.
else
@@ -1513,14 +1513,40 @@ int atcommand_heal(const int fd, struct map_session_data* sd, const char* comman
return 0;
}
- if ( hp < -2147483647 || sp < -2147483647 ) { // Prevent overflow. [Paradox924X]
- status_damage(NULL, &sd->bl, 2147483647, 2147483647, 0, 0);
- clif_damage(&sd->bl,&sd->bl, gettick(), 0, 0, 2147483647, 0 , 4, 0);
+ // Prevent overflow. [Paradox924X]
+ if ( hp < -INT_MAX && sp < -INT_MAX ) {
+ status_damage(NULL, &sd->bl, INT_MAX, INT_MAX, 0, 0);
+ clif_damage(&sd->bl,&sd->bl, gettick(), 0, 0, INT_MAX, 0, 4, 0);
clif_displaymessage(fd, msg_txt(156)); // HP or/and SP modified.
return 0;
}
- if(hp > 0 && sp >= 0) {
+ // Prevent overflow. [Paradox924X]
+ if ( hp > INT_MAX ) {
+ if (!status_percent_heal(&sd->bl, 100, 0))
+ clif_displaymessage(fd, msg_txt(157)); // HP and SP have already been recovered.
+ else
+ clif_displaymessage(fd, msg_txt(17)); // HP, SP recovered.
+ return 0;
+ } else if ( hp < -INT_MAX ) {
+ status_damage(NULL, &sd->bl, INT_MAX, 0, 0, 0);
+ clif_damage(&sd->bl,&sd->bl, gettick(), 0, 0, INT_MAX, 0, 4, 0);
+ clif_displaymessage(fd, msg_txt(156)); // HP or/and SP modified.
+ return 0;
+ }
+
+ // Prevent overflow. [Paradox924X]
+ if ( sp > INT_MAX ) {
+ status_heal(&sd->bl, 0, INT_MAX, 0);
+ clif_displaymessage(fd, msg_txt(156)); // HP or/and SP modified.
+ return 0;
+ } else if ( sp < -INT_MAX ) {
+ status_damage(NULL, &sd->bl, 0, INT_MAX, 0, 0);
+ clif_displaymessage(fd, msg_txt(156)); // HP or/and SP modified.
+ return 0;
+ }
+
+ if ( hp > 0 && sp >= 0 ) {
if(!status_heal(&sd->bl, hp, sp, 0))
clif_displaymessage(fd, msg_txt(157)); // HP and SP are already with the good value.
else
@@ -1528,24 +1554,24 @@ int atcommand_heal(const int fd, struct map_session_data* sd, const char* comman
return 0;
}
- if(hp < 0 && sp <= 0) {
+ if ( hp < 0 && sp <= 0 ) {
status_damage(NULL, &sd->bl, -hp, -sp, 0, 0);
- clif_damage(&sd->bl,&sd->bl, gettick(), 0, 0, -hp, 0 , 4, 0);
+ clif_damage(&sd->bl,&sd->bl, gettick(), 0, 0, -hp, 0, 4, 0);
clif_displaymessage(fd, msg_txt(156)); // HP or/and SP modified.
return 0;
}
//Opposing signs.
- if (hp) {
+ if ( hp ) {
if (hp > 0)
status_heal(&sd->bl, hp, 0, 0);
else {
status_damage(NULL, &sd->bl, -hp, 0, 0, 0);
- clif_damage(&sd->bl,&sd->bl, gettick(), 0, 0, -hp, 0 , 4, 0);
+ clif_damage(&sd->bl,&sd->bl, gettick(), 0, 0, -hp, 0, 4, 0);
}
}
- if (sp) {
+ if ( sp ) {
if (sp > 0)
status_heal(&sd->bl, 0, sp, 0);
else
diff --git a/src/map/charcommand.c b/src/map/charcommand.c
index f3590e08d..39d4f817e 100644
--- a/src/map/charcommand.c
+++ b/src/map/charcommand.c
@@ -1795,7 +1795,7 @@ int charcommand_heal(const int fd, struct map_session_data* sd, const char* comm
}
if ( ( hp == 0 && sp == 0 )
- || ( hp > 2147483647 || sp > 2147483647 ) ) { // Prevent overflow. [Paradox924X]
+ || ( hp > INT_MAX && sp > INT_MAX ) ) { // Prevent overflow. [Paradox924X]
if (!status_percent_heal(&pl_sd->bl, 100, 100))
clif_displaymessage(fd, msg_txt(157)); // HP and SP are already with the good value.
else
@@ -1807,37 +1807,63 @@ int charcommand_heal(const int fd, struct map_session_data* sd, const char* comm
return 0;
}
- if ( hp < -2147483647 || sp < -2147483647 ) { // Prevent overflow. [Paradox924X]
- status_damage(NULL, &pl_sd->bl, 2147483647, 2147483647, 0, 0);
- clif_damage(&pl_sd->bl,&pl_sd->bl, gettick(), 0, 0, 2147483647, 0 , 4, 0);
+ // Prevent overflow. [Paradox924X]
+ if ( hp < -INT_MAX && sp < -INT_MAX ) {
+ status_damage(NULL, &pl_sd->bl, INT_MAX, INT_MAX, 0, 0);
+ clif_damage(&pl_sd->bl,&pl_sd->bl, gettick(), 0, 0, INT_MAX, 0 , 4, 0);
clif_displaymessage(fd, msg_txt(156)); // HP or/and SP modified.
return 0;
}
-
+
+ // Prevent overflow. [Paradox924X]
+ if ( hp > INT_MAX ) {
+ if (!status_percent_heal(&pl_sd->bl, 100, 0))
+ clif_displaymessage(fd, msg_txt(157)); // HP and SP have already been recovered.
+ else
+ clif_displaymessage(fd, msg_txt(17)); // HP, SP recovered.
+ return 0;
+ } else if ( hp < -INT_MAX ) {
+ status_damage(NULL, &pl_sd->bl, INT_MAX, 0, 0, 0);
+ clif_damage(&pl_sd->bl,&pl_sd->bl, gettick(), 0, 0, INT_MAX, 0, 4, 0);
+ clif_displaymessage(fd, msg_txt(156)); // HP or/and SP modified.
+ return 0;
+ }
+
+ // Prevent overflow. [Paradox924X]
+ if ( sp > INT_MAX ) {
+ status_heal(&pl_sd->bl, 0, INT_MAX, 0);
+ clif_displaymessage(fd, msg_txt(156)); // HP or/and SP modified.
+ return 0;
+ } else if ( sp < -INT_MAX ) {
+ status_damage(NULL, &pl_sd->bl, 0, INT_MAX, 0, 0);
+ clif_displaymessage(fd, msg_txt(156)); // HP or/and SP modified.
+ return 0;
+ }
+
if(hp > 0 && sp >= 0) {
- if(!status_heal(&pl_sd->bl, hp, sp, 2))
+ if( !status_heal(&pl_sd->bl, hp, sp, 2) )
clif_displaymessage(fd, msg_txt(157)); // HP and SP are already with the good value.
else
{
clif_displaymessage(pl_sd->fd, msg_txt(17)); // HP, SP recovered.
- if (pl_sd->fd != fd)
+ if ( pl_sd->fd != fd )
clif_displaymessage(fd, msg_txt(17)); // HP, SP recovered.
}
return 0;
}
- if(hp < 0 && sp <= 0) {
+ if( hp < 0 && sp <= 0 ) {
status_damage(NULL, &pl_sd->bl, -hp, -sp, 0, 0);
clif_damage(&pl_sd->bl,&pl_sd->bl, gettick(), 0, 0, -hp, 0 , 4, 0);
clif_displaymessage(pl_sd->fd, msg_txt(156)); // HP or/and SP modified.
- if (pl_sd->fd != fd)
+ if ( pl_sd->fd != fd )
clif_displaymessage(fd, msg_txt(156)); // HP or/and SP modified.
return 0;
}
//Opposing signs.
- if (hp) {
- if (hp > 0)
+ if ( hp ) {
+ if ( hp > 0 )
status_heal(&pl_sd->bl, hp, 0, 2);
else {
status_damage(NULL, &pl_sd->bl, -hp, 0, 0, 0);
@@ -1845,8 +1871,8 @@ int charcommand_heal(const int fd, struct map_session_data* sd, const char* comm
}
}
- if (sp) {
- if (sp > 0)
+ if ( sp ) {
+ if ( sp > 0 )
status_heal(&pl_sd->bl, 0, sp, 2);
else
status_damage(NULL, &pl_sd->bl, 0, -sp, 0, 0);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-15 08:53:26 +0000