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#include <stdio.h> | |
#include <stdlib.h> | |
enum { BUFFER_SIZE = 10 }; | |
int main() { | |
char buffer[BUFFER_SIZE]; | |
int length = snprintf(buffer, BUFFER_SIZE, "%s%s", "long-name", "suffix"); | |
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#include <stdio.h> | |
#include <stdlib.h> | |
enum { BUFFER_SIZE = 10 }; | |
int main() { | |
char buffer[BUFFER_SIZE]; | |
int check = 0; | |
sprintf(buffer, "%s", "This string is too long!"); |
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enum { BUFFER_SIZE = 10 }; | |
char str1[BUFFER_SIZE]; | |
char str2[]="abcdefghijklmn"; | |
strncpy(str1,str2, BUFFER_SIZE); /* limit number of characters to be copied */ | |
// We need to set the limit to BUFFER_SIZE, so that all characters in the buffer | |
// are set to '\0'. If the source buffer is longer than BUFFER_SIZE, all the '\0' | |
// characters will be overwritten and the copy will be truncated. | |
if (str1[BUFFER_SIZE-1] != '\0') { |
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#include <stdio.h> | |
#ifndef strlcpy | |
#define strlcpy(dst,src,sz) snprintf((dst), (sz), "%s", (src)) | |
#endif | |
enum { BUFFER_SIZE = 10 }; | |
int main() { | |
char dst[BUFFER_SIZE]; |
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char str1[10]; | |
char str2[]="WeWantToOverwriteMemory"; | |
strcpy(str1,str2); |
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#include <stdio.h> | |
#include <stdlib.h> | |
#define LENGTH 8 | |
int main () { | |
char* username, *nlptr; | |
int allow = 0; | |
username = malloc(LENGTH * sizeof(*username)); | |
if (!username) | |
return EXIT_FAILURE; |
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#include <stdio.h> | |
int main () { | |
char username[8]; | |
int allow = 0; | |
printf external link("Enter your username, please: "); | |
gets(username); // user inputs "malicious" | |
if (grantAccess(username)) { | |
allow = 1; | |
} | |
if (allow != 0) { // has been overwritten by the overflow of the username. |
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# Edit this file to introduce tasks to be run by cron. | |
# | |
# Each task to run has to be defined through a single line | |
# indicating with different fields when the task will be run | |
# and what command to run for the task | |
# | |
# To define the time you can provide concrete values for | |
# minute (m), hour (h), day of month (dom), month (mon), | |
# and day of week (dow) or use '*' in these fields (for 'any').# | |
# Notice that tasks will be started based on the cron's system |
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function clearlogs { | |
find /var/log -type f | |
} | |
for i in return $(clearlogs); | |
do sudo cat /dev/null > $i; | |
echo "Log $i has been cleared"; | |
done |
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#!/bin/sh | |
MACCHANGER=/usr/bin/macchanger | |
[ "$IFACE" != "lo" ] || exit 0 | |
# Bring down interface (for wireless cards that are up to scan for networks), change MAC address to a random vendor address, bring up the interface | |
/sbin/ifconfig "$IFACE" down | |
macchanger -A "$IFACE" |