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removed fuck from code

master
bx 2021-12-27 07:57:56 +00:00
parent 5b4e49242d
commit 8bde12a2bb
1 changed files with 12 additions and 8 deletions
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20
fillin.c
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@ -6,12 +6,15 @@
#include <string.h> #include <string.h>
#include <stdarg.h> #include <stdarg.h>
// prefix for debug prints
#define SSS "-fillin-\t"
// https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---strcpy-chk-1.html // https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---strcpy-chk-1.html
// TODO: actually check for overflows // TODO: actually check for overflows
char * __strcpy_chk(char * dest, const char * src, size_t destlen) { char * __strcpy_chk(char * dest, const char * src, size_t destlen) {
char *d = dest; char *d = dest;
//printf("FUCK STRCPY %s :::: %s\n", src, dest); //printf(SSS "STRCPY %s :::: %s\n", src, dest);
while (*src != '\0') { while (*src != '\0') {
*d++ = *src++; *d++ = *src++;
@ -25,7 +28,7 @@ char * __strcpy_chk(char * dest, const char * src, size_t destlen) {
// https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---stpcpy-chk-1.html // https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---stpcpy-chk-1.html
char * __stpcpy_chk(char * dest, const char * src, size_t destlen) { char * __stpcpy_chk(char * dest, const char * src, size_t destlen) {
printf("FUCK STPCPY %s :::: %s\n", src, dest); printf(SSS "STPCPY %s :::: %s\n", src, dest);
return stpcpy(dest, src); return stpcpy(dest, src);
} }
@ -33,7 +36,7 @@ char * __stpcpy_chk(char * dest, const char * src, size_t destlen) {
// https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---strncpy-chk-1.html // https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---strncpy-chk-1.html
char * __strncpy_chk(char * dest, const char * src, size_t n, size_t dest_1len) { char * __strncpy_chk(char * dest, const char * src, size_t n, size_t dest_1len) {
printf("FUCK STRNCPY %s :::: %s\n", src, dest); printf(SSS "STRNCPY %s :::: %s\n", src, dest);
return strncpy(dest, src, n); return strncpy(dest, src, n);
} }
@ -41,7 +44,7 @@ char * __strncpy_chk(char * dest, const char * src, size_t n, size_t dest_1len)
// https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---strcat-chk-1.html // https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---strcat-chk-1.html
// TODO: There's some good info being dumped here // TODO: There's some good info being dumped here
char * __strcat_chk(char * dest, const char * src, size_t destlen) { char * __strcat_chk(char * dest, const char * src, size_t destlen) {
//printf("!!! strcat %s :::: %s\n", src, dest); printf("!!! strcat %s :::: %s\n", src, dest);
char *res = strncat(dest, src, destlen); char *res = strncat(dest, src, destlen);
@ -51,7 +54,7 @@ char * __strcat_chk(char * dest, const char * src, size_t destlen) {
// https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---memcpy-chk-1.html // https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---memcpy-chk-1.html
void * __memcpy_chk(void * dest, const void * src, size_t len, size_t destlen) { void * __memcpy_chk(void * dest, const void * src, size_t len, size_t destlen) {
//puts("FUCK MEMCPY \n"); //puts(SSS "MEMCPY \n");
return memcpy(dest, src, len); return memcpy(dest, src, len);
} }
@ -59,7 +62,7 @@ void * __memcpy_chk(void * dest, const void * src, size_t len, size_t destlen) {
// https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---memset-chk-1.html // https://refspecs.linuxbase.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/libc---memset-chk-1.html
void * __memset_chk(void * dest, int c, size_t len, size_t destlen) { void * __memset_chk(void * dest, int c, size_t len, size_t destlen) {
puts("FUCK MEMSET\n"); puts(SSS "MEMSET\n");
return memset(dest, c, len); return memset(dest, c, len);
} }
@ -110,14 +113,15 @@ int __sprintf_chk(char * str, int flag, size_t strlen, const char * format, ...)
} }
void __longjmp_chk () { void __longjmp_chk () {
// puts("FUCK LONG JMP\n"); // puts(SSS "LONG JMP\n");
asm("pop %rbp"); asm("pop %rbp");
// I think this is a GNU extention, but it's an easy way to do it
goto *(&longjmp); goto *(&longjmp);
} }
void __fread_chk () { void __fread_chk () {
// asm ("pop %rbp"); // asm ("pop %rbp");
puts("FUCK FREAD\n"); puts(SSS "FREAD\n");
// stub // stub
} }