43 lines
903 B
C
43 lines
903 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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static void setup(void) {
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setvbuf(stdin, NULL, _IONBF, 0);
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setvbuf(stdout, NULL, _IONBF, 0);
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setvbuf(stderr, NULL, _IONBF, 0);
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}
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static void default_spell(void) {
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puts("Poof! A tiny spark flies out... not very impressive.");
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}
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__attribute__((noreturn)) static void win(void) {
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puts("Ancient magic awakens! The forest bows to you.");
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char *argv[] = {"/bin/sh", NULL};
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execve("/bin/sh", argv, NULL);
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_exit(0);
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}
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static void vuln(void) {
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struct {
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char incantation[64];
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void (*cast)(void);
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} spell;
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spell.cast = default_spell;
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printf("Whisper your incantation:\n");
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read(STDIN_FILENO, spell.incantation, 128);
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printf("Casting spell...\n");
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spell.cast();
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}
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int main(void) {
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setup();
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printf("Welcome to the Enchanted Forest!\n");
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vuln();
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return 0;
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}
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