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trivial: remove unnecessary snprintf buffer termination checks

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Lost my mind for a while there - snprintf always terminates the
buffer. A couple of minor tidy ups in nearby code while I was looking
over all the calls.

Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
This commit is contained in:
Kevin Shanahan 2012-12-19 12:19:08 +10:30
parent ee389ca9a3
commit 92adc9f0c7
8 changed files with 35 additions and 80 deletions
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24
NQ/cl_parse.c
View File

@ -237,7 +237,7 @@ CL_ParseServerInfo(void)
{
char *level;
const char *mapname;
int i, len, maxlen;
int i, maxlen;
int nummodels, numsounds;
char model_precache[MAX_MODELS][MAX_QPATH];
char sound_precache[MAX_SOUNDS][MAX_QPATH];
@ -270,9 +270,7 @@ CL_ParseServerInfo(void)
// parse signon message
level = cl.levelname;
maxlen = sizeof(cl.levelname);
len = snprintf(level, maxlen, "%s", MSG_ReadString());
if (len > maxlen - 1)
level[maxlen - 1] = 0;
snprintf(level, maxlen, "%s", MSG_ReadString());
// seperate the printfs so the server message can have a color
Con_Printf("\n\n\35\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36"
@ -299,9 +297,7 @@ CL_ParseServerInfo(void)
}
model = model_precache[nummodels];
maxlen = sizeof(model_precache[0]);
len = snprintf(model, maxlen, "%s", in);
if (len > maxlen - 1)
model[maxlen - 1] = 0;
snprintf(model, maxlen, "%s", in);
Mod_TouchModel(model);
}
@ -319,9 +315,7 @@ CL_ParseServerInfo(void)
}
sound = sound_precache[numsounds];
maxlen = sizeof(sound_precache[0]);
len = snprintf(sound, maxlen, "%s", in);
if (len > maxlen - 1)
sound[maxlen - 1] = 0;
snprintf(sound, maxlen, "%s", in);
S_TouchSound(sound);
}
@ -838,7 +832,7 @@ CL_ParseServerMessage(void)
{
int cmd;
char *s;
int i, len;
int i;
byte colors;
//
@ -935,9 +929,7 @@ CL_ParseServerMessage(void)
if (i >= MAX_LIGHTSTYLES)
Sys_Error("svc_lightstyle > MAX_LIGHTSTYLES");
s = MSG_ReadString();
len = snprintf(cl_lightstyle[i].map, MAX_STYLESTRING, "%s", s);
if (len > MAX_STYLESTRING - 1)
cl_lightstyle[i].map[MAX_STYLESTRING - 1] = 0;
snprintf(cl_lightstyle[i].map, MAX_STYLESTRING, "%s", s);
cl_lightstyle[i].length = strlen(cl_lightstyle[i].map);
break;
@ -956,9 +948,7 @@ CL_ParseServerMessage(void)
if (i >= cl.maxclients)
Host_Error("%s: svc_updatename > MAX_SCOREBOARD", __func__);
s = MSG_ReadString();
len = snprintf(cl.players[i].name, MAX_SCOREBOARDNAME, "%s", s);
if (len > MAX_SCOREBOARDNAME - 1)
cl.players[i].name[MAX_SCOREBOARDNAME - 1] = 0;
snprintf(cl.players[i].name, MAX_SCOREBOARDNAME, "%s", s);
break;
case svc_updatefrags:

16
NQ/net_dgrm.c
View File

@ -1120,13 +1120,8 @@ _Datagram_SearchForHosts(qboolean xmit, net_landriver_t *driver)
// add it
hostCacheCount++;
len = snprintf(host->name, sizeof(host->name), "%s", MSG_ReadString());
if (len > sizeof(host->name) - 1)
host->name[sizeof(host->name) - 1] = 0;
len = snprintf(host->map, sizeof(host->map), "%s", MSG_ReadString());
if (len > sizeof(host->map) - 1)
host->map[sizeof(host->map) - 1] = 0;
snprintf(host->name, sizeof(host->name), "%s", MSG_ReadString());
snprintf(host->map, sizeof(host->map), "%s", MSG_ReadString());
host->users = MSG_ReadByte();
host->maxusers = MSG_ReadByte();
if (MSG_ReadByte() != NET_PROTOCOL_VERSION) {
@ -1191,7 +1186,7 @@ _Datagram_Connect(char *host, net_landriver_t *driver)
netadr_t readaddr;
qsocket_t *sock;
int newsock;
int ret, len;
int ret;
int reps;
double start_time;
int control;
@ -1310,10 +1305,7 @@ _Datagram_Connect(char *host, net_landriver_t *driver)
ErrorReturn:
Con_Printf("%s\n", reason);
len = snprintf(m_return_reason, sizeof(m_return_reason), "%s", reason);
if (len > sizeof(m_return_reason) - 1)
m_return_reason[sizeof(m_return_reason) - 1] = 0;
snprintf(m_return_reason, sizeof(m_return_reason), "%s", reason);
NET_FreeQSocket(sock);
ErrorReturn2:
driver->CloseSocket(newsock);

59
QW/client/cl_parse.c
View File

@ -541,7 +541,6 @@ CL_ParseServerData(void)
char fn[MAX_OSPATH];
qboolean cflag = false;
int protover;
int len;
Con_DPrintf("Serverdata packet received.\n");
//
@ -576,9 +575,7 @@ CL_ParseServerData(void)
//ZOID--run the autoexec.cfg in the gamedir
//if it exists
if (cflag) {
len = snprintf(fn, sizeof(fn), "%s/%s", com_gamedir, "config.cfg");
if (len > sizeof(fn) - 1)
fn[sizeof(fn) - 1] = 0;
snprintf(fn, sizeof(fn), "%s/%s", com_gamedir, "config.cfg");
if ((f = fopen(fn, "r")) != NULL) {
fclose(f);
Cbuf_AddText("cl_warncmd 0\n");
@ -595,9 +592,7 @@ CL_ParseServerData(void)
}
// get the full level name
str = MSG_ReadString();
len = snprintf(cl.levelname, sizeof(cl.levelname), "%s", str);
if (len > sizeof(cl.levelname) - 1)
cl.levelname[sizeof(cl.levelname) - 1] = 0;
snprintf(cl.levelname, sizeof(cl.levelname), "%s", str);
// get the movevars
movevars.gravity = MSG_ReadFloat();
@ -637,7 +632,7 @@ CL_ParseSoundlist(void)
char *str, *name;
int numsounds;
int n, len;
int n;
// precache sounds
numsounds = MSG_ReadByte();
@ -649,9 +644,7 @@ CL_ParseSoundlist(void)
if (numsounds == MAX_SOUNDS)
Host_EndGame("Server sent too many sound_precache");
name = cl.sound_name[numsounds];
len = snprintf(name, NAMELEN, "%s", str);
if (len > NAMELEN - 1)
name[NAMELEN - 1] = 0;
snprintf(name, NAMELEN, "%s", str);
}
n = MSG_ReadByte();
@ -678,7 +671,7 @@ CL_ParseModellist(void)
const int NAMELEN = sizeof(cl.model_name[0]);
int nummodels;
char *str, *name;
int n, len;
int n;
// precache models and note certain default indexes
nummodels = MSG_ReadByte();
@ -691,9 +684,7 @@ CL_ParseModellist(void)
if (nummodels == MAX_MODELS)
Host_EndGame("Server sent too many model_precache");
name = cl.model_name[nummodels];
len = snprintf(name, NAMELEN, "%s", str);
if (len > NAMELEN - 1)
name[NAMELEN - 1] = 0;
snprintf(name, NAMELEN, "%s", str);
if (!strcmp(name, "progs/spike.mdl"))
cl_spikeindex = nummodels;
@ -962,13 +953,10 @@ CL_ProcessUserinfo
static void
CL_ProcessUserInfo(int slot, player_info_t * player)
{
int len;
char *name;
name = Info_ValueForKey(player->userinfo, "name");
len = snprintf(player->name, sizeof(player->name), "%s", name);
if (len > sizeof(player->name) - 1)
player->name[sizeof(player->name) - 1] = 0;
snprintf(player->name, sizeof(player->name), "%s", name);
player->topcolor = atoi(Info_ValueForKey(player->userinfo, "topcolor"));
player->bottomcolor =
@ -995,7 +983,7 @@ CL_UpdateUserinfo(void)
{
player_info_t *player;
char *info;
int slot, len;
int slot;
slot = MSG_ReadByte();
if (slot >= MAX_CLIENTS)
@ -1005,10 +993,7 @@ CL_UpdateUserinfo(void)
player->userid = MSG_ReadLong();
info = MSG_ReadString();
len = snprintf(player->userinfo, sizeof(player->userinfo), "%s", info);
if (len > sizeof(player->userinfo) - 1)
player->userinfo[sizeof(player->userinfo) - 1] = 0;
snprintf(player->userinfo, sizeof(player->userinfo), "%s", info);
CL_ProcessUserInfo(slot, player);
}
@ -1023,20 +1008,15 @@ CL_SetInfo(void)
char key[MAX_MSGLEN];
char value[MAX_MSGLEN];
player_info_t *player;
int slot, len;
int slot;
slot = MSG_ReadByte();
if (slot >= MAX_CLIENTS)
Host_EndGame("%s: svc_setinfo > MAX_SCOREBOARD", __func__);
player = &cl.players[slot];
len = snprintf(key, sizeof(key), "%s", MSG_ReadString());
if (len > sizeof(key) - 1)
key[sizeof(key) - 1] = 0;
len = snprintf(value, sizeof(value), "%s", MSG_ReadString());
if (len > sizeof(value) - 1)
value[sizeof(value) - 1] = 0;
snprintf(key, sizeof(key), "%s", MSG_ReadString());
snprintf(value, sizeof(value), "%s", MSG_ReadString());
Con_DPrintf("SETINFO %s: %s=%s\n", player->name, key, value);
@ -1055,14 +1035,9 @@ CL_ServerInfo(void)
{
char key[MAX_MSGLEN];
char value[MAX_MSGLEN];
int len;
len = snprintf(key, sizeof(key), "%s", MSG_ReadString());
if (len > sizeof(key) - 1)
key[sizeof(key) - 1] = 0;
len = snprintf(value, sizeof(value), "%s", MSG_ReadString());
if (len > sizeof(value) - 1)
value[sizeof(value) - 1] = 0;
snprintf(key, sizeof(key), "%s", MSG_ReadString());
snprintf(value, sizeof(value), "%s", MSG_ReadString());
Con_DPrintf("SERVERINFO: %s=%s\n", key, value);
@ -1149,7 +1124,7 @@ CL_ParseServerMessage(void)
{
int cmd;
char *s;
int i, j, len;
int i, j;
received_framecount = host_framecount;
cl.last_servermessage = realtime;
@ -1236,9 +1211,7 @@ CL_ParseServerMessage(void)
if (i >= MAX_LIGHTSTYLES)
Sys_Error("svc_lightstyle > MAX_LIGHTSTYLES");
s = MSG_ReadString();
len = snprintf(cl_lightstyle[i].map, MAX_STYLESTRING, "%s", s);
if (len > MAX_STYLESTRING - 1)
cl_lightstyle[i].map[MAX_STYLESTRING - 1] = 0;
snprintf(cl_lightstyle[i].map, MAX_STYLESTRING, "%s", s);
cl_lightstyle[i].length = strlen(cl_lightstyle[i].map);
break;

4
common/cmd.c
View File

@ -116,10 +116,12 @@ Cbuf_AddText(const char *fmt, ...)
{
va_list ap;
int len, maxlen;
char *buf;
buf = (char *)cmd_text.data + cmd_text.cursize;
maxlen = cmd_text.maxsize - cmd_text.cursize;
va_start(ap, fmt);
len = vsnprintf((char *)cmd_text.data + cmd_text.cursize, maxlen, fmt, ap);
len = vsnprintf(buf, maxlen, fmt, ap);
va_end(ap);
if (cmd_text.cursize + len < cmd_text.maxsize)

6
common/common.c
View File

@ -1331,14 +1331,14 @@ va(const char *format, ...)
{
va_list argptr;
char *buf;
int ret;
int len;
buf = COM_GetStrBuf();
va_start(argptr, format);
ret = vsnprintf(buf, COM_STRBUF_LEN, format, argptr);
len = vsnprintf(buf, COM_STRBUF_LEN, format, argptr);
va_end(argptr);
if (ret >= COM_STRBUF_LEN)
if (len > COM_STRBUF_LEN - 1)
Con_DPrintf("%s: overflow (string truncated)\n", __func__);
return buf;

2
common/r_part.c
View File

@ -168,7 +168,7 @@ R_ReadPointFile_f(void)
char name[MAX_OSPATH];
#ifdef NQ_HACK
sprintf(name, "maps/%s.pts", sv.name);
snprintf(name, sizeof(name), "maps/%s.pts", sv.name);
#endif
#ifdef QW_HACK
snprintf(name, sizeof(name), "maps/%s.pts",

1
common/vid_sdl.c
View File

@ -230,7 +230,6 @@ InitMode(vmode_t *mode, int num, int fullscreen, int width, int height)
mode->width = width;
mode->height = height;
snprintf(mode->modedesc, sizeof(mode->modedesc), "%dx%d", width, height);
mode->modedesc[sizeof(mode->modedesc) - 1] = 0;
}
static void

3
common/vid_win.c
View File

@ -631,8 +631,7 @@ InitWindowedMode(vmode_t *mode, int num, int width, int height)
mode->type = MS_WINDOWED;
mode->width = width;
mode->height = height;
snprintf(mode->modedesc, 13, "%dx%d", width, height);
mode->modedesc[12] = 0;
snprintf(mode->modedesc, sizeof(mode->modedesc), "%dx%d", width, height);
mode->mode13 = 0;
mode->modenum = num;
mode->stretched = 0;