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https://github.com/AFLplusplus/AFLplusplus.git
synced 2025-06-07 15:51:32 +00:00
50 lines
886 B
C
50 lines
886 B
C
#include <stdio.h>
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#include <unistd.h>
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#include <stdint.h>
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#include <sys/types.h>
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/* This is an example target for defork.c - fuzz using
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```
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mkdir in; echo a > ./in/a
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AFL_PRELOAD=./defork64.so ../../afl-fuzz -i in -o out -- ./forking_target @@
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```
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*/
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int main(int argc, char **argv) {
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if (argc < 2) {
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printf("Example tool to test defork.\nUsage ./forking_target <input>\n");
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return -1;
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}
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pid_t pid = fork();
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if (pid == 0) {
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printf("We're in the child.\n");
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FILE *f = fopen(argv[1], "r");
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char buf[4096];
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fread(buf, 1, 4096, f);
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fclose(f);
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uint32_t offset = buf[100] + (buf[101] << 8);
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char test_val = buf[offset];
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return test_val < 100;
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} else if (pid < 0) {
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perror("fork");
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return -1;
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} else {
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printf("We are in the parent - defork didn't work! :( (pid=%d)\n",
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(int)pid);
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}
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return 0;
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}
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