Hi,
I try to create the hooks for open()/fopen().
hook code:
#include <stdio.h>
int open(const char *fname, int mode, ...) {
printf("fname=%s\n", fname);
}
FILE* fopen(const char *fname, const char *mode) {
printf("fname=%s\n", fname);
}
test code:
#include <stdio.h>
int main() {
FILE *file = fopen("main.c", "rb");
if ( file ) fclose(file);
}
compiled as:
gcc hook.c -shared -oopenhook.dll
gcc main.c -omain
run as:
LD_PRELOAD=/home/niXman/openhook.dll ./main
But a can't see the output.
What I am doing wrongly?
Thanks!
--
Regards, niXman
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