79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
#include "no_warn_host.h"
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#include "lwip/opt.h"
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#include "lwip/udp.h"
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#include "lwip/mem.h"
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#include "lwip/memp.h"
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#include "lwip/dns.h"
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#include "lwip/ip_addr.h"
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#include <string.h>
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const ip_addr_t ip_addr_any;
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const ip_addr_t ip_addr_broadcast;
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struct ip_globals ip_data;
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struct netif *netif_list;
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struct netif mynetif;
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ip4_addr_t server_ip;
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//
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// Dependency injected test functions
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void dns_test_dns_recv(void *s, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port);
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void dns_test_inject_port_and_txid(int port, int txid);
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void dns_test_init_di();
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err_t dns_test_dns_enqueue(const char *name, size_t hostnamelen, dns_found_callback found, void *callback_arg, u8_t dns_addrtype);
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//
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// Test starts here
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//
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int main(int argc, char** argv)
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{
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uint8_t *buf;
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struct pbuf *p;
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FILE *file;
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size_t len = 1460;
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dns_test_init_di();
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#ifdef INSTR_IS_OFF
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p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
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buf = p->payload;
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memset(buf, 0, 1460);
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if (argc != 2)
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{
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printf("Non-instrumentation mode: please supply a file name created by AFL to reproduce crash\n");
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return 1;
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}
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//
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// Note: parameter1 is a file (mangled packet) which caused the crash
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file = fopen(argv[1], "r");
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if (file) {
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len = fread(buf, 1, 1460, file);
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}
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fclose(file);
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int i;
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for (i=0; i<1; i++) {
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#else
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while (__AFL_LOOP(1000)) {
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p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
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buf = p->payload;
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memset(buf, 0, 1460);
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size_t len = read(0, buf, 1460);
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#endif
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p->len = len;
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p->tot_len = len;
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p->next = NULL;
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// Pretend that the response is from our pending querries
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dns_test_inject_port_and_txid(1024, (buf[0]<<8) + buf[1]);
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dns_test_dns_enqueue("test", 4, NULL, NULL, 0);
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// Process the packet
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dns_test_dns_recv(NULL, NULL, p, &ip_addr_any, 0);
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}
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return 0;
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}
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