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Fixed lastcallers string overflow

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This commit is contained in:
Michiel Broek 2008-11-29 13:42:38 +00:00
parent 55115f3f57
commit 421baaa11d
3 changed files with 36 additions and 27 deletions
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4
ChangeLog
View File

@ -11,12 +11,16 @@ v0.95.4 31-Aug-2008 -
mbfido:
A cosmetic change to add an extra newline before the tearline.
mbsebbs:
Fixed a buffer overflow in lastcallers display.
mbsetup:
Increased the size of the nntp username and password fields to
32 characters.
script:
installinit.sh now knows about Slamd64.
SETUP.sh now knows about Slamd64.
v0.95.3 12-Mar-2008 - 31-Aug-2008.

4
SETUP.sh
View File

@ -75,6 +75,10 @@ if [ "$OSTYPE" = "Linux" ]; then
else
DISTVERS=$( cat /etc/slackware-version )
fi
elif [ -f /etc/slamd64-version ]; then
# Slamd64
DISTNAME="Slamd64"
DISTVERS=`cat /etc/slamd64-version`
elif [ -f /etc/zenwalk-version ]; then
DISTNAME="Zenwalk"
DISTVERS=$( cat /etc/zenwalk-version | awk '{ print $2 }' )

53
mbsebbs/lastcallers.c
View File

@ -59,9 +59,9 @@ extern int cols;
*/
void LastCallers(char *OpData)
{
FILE *pLC;
FILE *fp;
int LineCount = 5, count = 0;
char lstr[128], *sFileName, *Heading;
char lstr[201], *sFileName, *Heading;
struct lastcallers lcall;
struct lastcallershdr lcallhdr;
@ -75,19 +75,19 @@ void LastCallers(char *OpData)
PUTSTR(chartran(lstr));
snprintf(sFileName, PATH_MAX, "%s/etc/lastcall.data", getenv("MBSE_ROOT"));
if ((pLC = fopen(sFileName,"r")) == NULL)
if ((fp = fopen(sFileName,"r")) == NULL)
WriteError("$LastCallers: Can't open %s", sFileName);
else {
fread(&lcallhdr, sizeof(lcallhdr), 1, pLC);
fread(&lcallhdr, sizeof(lcallhdr), 1, fp);
strcpy(lstr, colour_str(WHITE, BLACK));
/* Todays callers to */
snprintf(Heading, 81, "%s%s", (char *) Language(84), CFG.bbs_name);
strncat(lstr, Center_str(Heading), 127);
strncat(lstr, Center_str(Heading), 200);
PUTSTR(chartran(lstr));
strcpy(lstr, colour_str(LIGHTRED, BLACK));
strncat(lstr, Center_str(hLine_str(strlen(Heading))), 127);
strncat(lstr, Center_str(hLine_str(strlen(Heading))), 200);
PUTSTR(chartran(lstr));
Enter(1);
@ -96,41 +96,41 @@ void LastCallers(char *OpData)
PUTSTR(chartran(lstr));
strcpy(lstr, colour_str(GREEN, BLACK));
strncat(lstr, fLine_str(cols -1), 127);
strncat(lstr, fLine_str(cols -1), 200);
PUTSTR(chartran(lstr));
while (fread(&lcall, lcallhdr.recsize, 1, pLC) == 1) {
while (fread(&lcall, lcallhdr.recsize, 1, fp) == 1) {
if (!lcall.Hidden) {
count++;
strcpy(lstr, colour_str(WHITE, BLACK));
snprintf(Heading, 81, "%-5d", count);
strncat(lstr, Heading, 127);
snprintf(Heading, 80, "%-5d", count);
strncat(lstr, Heading, 200);
strncat(lstr, colour_str(LIGHTCYAN, BLACK), 127);
strncat(lstr, colour_str(LIGHTCYAN, BLACK), 200);
if ((strcasecmp(OpData, "/H")) == 0) {
if ((strcmp(lcall.Handle, "") != 0 && *(lcall.Handle) != ' '))
snprintf(Heading, 81, "%-20s", lcall.Handle);
snprintf(Heading, 80, "%-20s", lcall.Handle);
else
snprintf(Heading, 81, "%-20s", lcall.UserName);
snprintf(Heading, 80, "%-20s", lcall.UserName);
} else if (strcasecmp(OpData, "/U") == 0) {
snprintf(Heading, 81, "%-20s", lcall.Name);
snprintf(Heading, 80, "%-20s", lcall.Name);
} else {
snprintf(Heading, 81, "%-20s", lcall.UserName);
snprintf(Heading, 80, "%-20s", lcall.UserName);
}
strncat(lstr, Heading, 127);
strncat(lstr, Heading, 200);
snprintf(Heading, 81, "%-8s", lcall.Device);
strncat(lstr, pout_str(LIGHTBLUE, BLACK, Heading), 127);
snprintf(Heading, 80, "%-8s", lcall.Device);
strncat(lstr, pout_str(LIGHTBLUE, BLACK, Heading), 200);
snprintf(Heading, 81, "%-8s", lcall.TimeOn);
strncat(lstr, pout_str(LIGHTMAGENTA, BLACK, Heading), 127);
snprintf(Heading, 80, "%-8s", lcall.TimeOn);
strncat(lstr, pout_str(LIGHTMAGENTA, BLACK, Heading), 200);
snprintf(Heading, 81, "%-7d", lcall.Calls);
strncat(lstr, pout_str(YELLOW, BLACK, Heading), 127);
snprintf(Heading, 80, "%-7d", lcall.Calls);
strncat(lstr, pout_str(YELLOW, BLACK, Heading), 200);
snprintf(Heading, 81, "%-32s", lcall.Location);
strncat(lstr, pout_str(LIGHTRED, BLACK, Heading), 127);
snprintf(Heading, 80, "%-32s", lcall.Location);
strncat(lstr, pout_str(LIGHTRED, BLACK, Heading), 200);
PUTSTR(chartran(lstr));
Enter(1);
@ -139,14 +139,15 @@ void LastCallers(char *OpData)
Pause();
LineCount = 0;
}
} /* End of check if user is hidden */
}
strcpy(lstr, colour_str(GREEN, BLACK));
strncat(lstr, fLine_str(cols -1), 127);
strncat(lstr, fLine_str(cols -1), 200);
PUTSTR(chartran(lstr));
fclose(pLC);
fclose(fp);
Enter(1);
Pause();
}