mirror of
https://github.com/AFLplusplus/AFLplusplus.git
synced 2025-06-12 18:18:07 +00:00
91 lines
1.5 KiB
C
91 lines
1.5 KiB
C
#include <stdbool.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <unistd.h>
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#define UNUSED_PARAMETER(x) (void)(x)
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#define LOG(x) \
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do { \
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\
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char buf[] = x; \
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write(STDOUT_FILENO, buf, sizeof(buf)); \
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\
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} while (false);
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void test(char data) {
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char *buf = malloc(10);
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if (buf == NULL) return;
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switch (data) {
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/* Underflow */
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case 'U':
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LOG("Underflow\n");
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buf[-1] = '\0';
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free(buf);
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break;
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/* Overflow */
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case 'O':
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LOG("Overflow\n");
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buf[10] = '\0';
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free(buf);
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break;
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/* Double free */
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case 'D':
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LOG("Double free\n");
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free(buf);
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free(buf);
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break;
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/* Use after free */
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case 'A':
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LOG("Use after free\n");
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free(buf);
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buf[0] = '\0';
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break;
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/* Test Limits (OK) */
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case 'T':
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LOG("Test-Limits - No Error\n");
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buf[0] = 'A';
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buf[9] = 'I';
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free(buf);
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break;
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case 'M':
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LOG("Memset too many\n");
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memset(buf, '\0', 11);
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free(buf);
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break;
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default:
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LOG("Nop - No Error\n");
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break;
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}
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}
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int main(int argc, char **argv) {
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UNUSED_PARAMETER(argc);
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UNUSED_PARAMETER(argv);
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char input = '\0';
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if (read(STDIN_FILENO, &input, 1) < 0) {
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LOG("Failed to read stdin\n");
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return 1;
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}
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test(input);
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LOG("DONE\n");
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return 0;
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}
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