dropbear: fuzz-wrapfd.c annotate

annotate fuzz-wrapfd.c @ 1381:c98e242dc505 fuzz

add m_mp_free_multi, be more careful freeing when failing to load keys

author	Matt Johnston <matt@ucc.asn.au>
date	Fri, 26 May 2017 21:08:43 +0800
parents	d4cc85e6c569
children	4b864fd12b22

rev	line source
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	1 #define FUZZ_SKIP_WRAP 1
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 #include "includes.h"
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 #include "fuzz-wrapfd.h"
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	5 #include "fuzz.h"
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	6
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 static const int IOWRAP_MAXFD = FD_SETSIZE-1;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 static const int MAX_RANDOM_IN = 50000;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 static const double CHANCE_CLOSE = 1.0 / 300;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 static const double CHANCE_INTR = 1.0 / 200;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 static const double CHANCE_READ1 = 0.6;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 static const double CHANCE_READ2 = 0.3;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 static const double CHANCE_WRITE1 = 0.8;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 static const double CHANCE_WRITE2 = 0.3;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 struct fdwrap {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 enum wrapfd_mode mode;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 buffer *buf;
1358 6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	19 int closein;
6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	20 int closeout;
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 };
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 static struct fdwrap wrap_fds[IOWRAP_MAXFD+1];
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24 // for quick selection of in-use descriptors
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 static int wrap_used[IOWRAP_MAXFD+1];
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 static unsigned int nused;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 static unsigned short rand_state[3];
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28
1377 d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input() Matt Johnston <matt@ucc.asn.au> parents: 1360 diff changeset	29 void wrapfd_setup() {
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	30 TRACE(("wrapfd_setup %x", seed))
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 nused = 0;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 memset(wrap_fds, 0x0, sizeof(wrap_fds));
1358 6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	33 memset(wrap_used, 0x0, sizeof(wrap_used));
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34
1358 6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	35 memset(rand_state, 0x0, sizeof(rand_state));
1377 d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input() Matt Johnston <matt@ucc.asn.au> parents: 1360 diff changeset	36 wrapfd_setseed(50);
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input() Matt Johnston <matt@ucc.asn.au> parents: 1360 diff changeset	37 }
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input() Matt Johnston <matt@ucc.asn.au> parents: 1360 diff changeset	38
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input() Matt Johnston <matt@ucc.asn.au> parents: 1360 diff changeset	39 void wrapfd_setseed(uint32_t seed) {
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 ((uint32_t)rand_state) = seed;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 nrand48(rand_state);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 void wrapfd_add(int fd, buffer *buf, enum wrapfd_mode mode) {
1358 6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	45 TRACE(("wrapfd_add %d buf %p mode %d", fd, buf, mode))
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46 assert(fd >= 0);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 assert(fd <= IOWRAP_MAXFD);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 assert(wrap_fds[fd].mode == UNUSED);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49 assert(buf \|\| mode == RANDOMIN);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 wrap_fds[fd].mode = mode;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 wrap_fds[fd].buf = buf;
1358 6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	53 wrap_fds[fd].closein = 0;
6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	54 wrap_fds[fd].closeout = 0;
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 wrap_used[nused] = fd;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57 nused++;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 void wrapfd_remove(int fd) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61 unsigned int i, j;
1358 6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	62 TRACE(("wrapfd_remove %d", fd))
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 assert(fd >= 0);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 assert(fd <= IOWRAP_MAXFD);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65 assert(wrap_fds[fd].mode != UNUSED);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 wrap_fds[fd].mode = UNUSED;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	68
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 // remove from used list
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 for (i = 0, j = 0; i < nused; i++) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 if (wrap_used[i] != fd) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72 wrap_used[j] = wrap_used[i];
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 j++;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76 nused--;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78
1360 16f45f2df38f ignore wrapfd_close for unknown Matt Johnston <matt@ucc.asn.au> parents: 1358 diff changeset	79 int wrapfd_close(int fd) {
16f45f2df38f ignore wrapfd_close for unknown Matt Johnston <matt@ucc.asn.au> parents: 1358 diff changeset	80 if (fd >= 0 && fd <= IOWRAP_MAXFD && wrap_fds[fd].mode != UNUSED)
16f45f2df38f ignore wrapfd_close for unknown Matt Johnston <matt@ucc.asn.au> parents: 1358 diff changeset	81 {
16f45f2df38f ignore wrapfd_close for unknown Matt Johnston <matt@ucc.asn.au> parents: 1358 diff changeset	82 wrapfd_remove(fd);
16f45f2df38f ignore wrapfd_close for unknown Matt Johnston <matt@ucc.asn.au> parents: 1358 diff changeset	83 return 0;
16f45f2df38f ignore wrapfd_close for unknown Matt Johnston <matt@ucc.asn.au> parents: 1358 diff changeset	84 }
16f45f2df38f ignore wrapfd_close for unknown Matt Johnston <matt@ucc.asn.au> parents: 1358 diff changeset	85 else {
16f45f2df38f ignore wrapfd_close for unknown Matt Johnston <matt@ucc.asn.au> parents: 1358 diff changeset	86 return close(fd);
16f45f2df38f ignore wrapfd_close for unknown Matt Johnston <matt@ucc.asn.au> parents: 1358 diff changeset	87 }
1358 6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	88 }
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	89
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90 int wrapfd_read(int fd, void *out, size_t count) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91 size_t maxread;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 buffer *buf;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	94 if (!fuzz.wrapfds) {
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	95 return read(fd, out, count);
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	96 }
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	97
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	98 if (fd < 0 \|\| fd > IOWRAP_MAXFD \|\| wrap_fds[fd].mode == UNUSED) {
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	99 // XXX - assertion failure?
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100 TRACE(("Bad read descriptor %d\n", fd))
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101 errno = EBADF;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102 return -1;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105 assert(count != 0);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106
1358 6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	107 if (wrap_fds[fd].closein \|\| erand48(rand_state) < CHANCE_CLOSE) {
6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	108 wrap_fds[fd].closein = 1;
6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	109 errno = ECONNRESET;
6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	110 return -1;
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113 if (erand48(rand_state) < CHANCE_INTR) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 errno = EINTR;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115 return -1;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	118 buf = wrap_fds[fd].buf;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	119 if (buf) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120 maxread = MIN(buf->len - buf->pos, count);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	121 // returns 0 if buf is EOF, as intended
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	122 if (maxread > 0) {
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	123 maxread = nrand48(rand_state) % maxread + 1;
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	124 }
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 memcpy(out, buf_getptr(buf, maxread), maxread);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126 buf_incrpos(buf, maxread);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 return maxread;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130 maxread = MIN(MAX_RANDOM_IN, count);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 maxread = nrand48(rand_state) % maxread + 1;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 memset(out, 0xef, maxread);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 return maxread;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 int wrapfd_write(int fd, const void* in, size_t count) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 unsigned const volatile char* volin = in;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138 unsigned int i;
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	139
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	140 if (!fuzz.wrapfds) {
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	141 return write(fd, in, count);
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	142 }
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	143
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	144 if (fd < 0 \|\| fd > IOWRAP_MAXFD \|\| wrap_fds[fd].mode == UNUSED) {
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	145 // XXX - assertion failure?
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146 TRACE(("Bad read descriptor %d\n", fd))
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147 errno = EBADF;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 return -1;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151 assert(count != 0);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153 // force read to exercise sanitisers
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154 for (i = 0; i < count; i++) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	155 (void)volin[i];
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157
1358 6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	158 if (wrap_fds[fd].closeout \|\| erand48(rand_state) < CHANCE_CLOSE) {
6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	159 wrap_fds[fd].closeout = 1;
6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	160 errno = ECONNRESET;
6b89eb92f872 glaring wrapfd problems fixed Matt Johnston <matt@ucc.asn.au> parents: 1357 diff changeset	161 return -1;
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	163
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	164 if (erand48(rand_state) < CHANCE_INTR) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 errno = EINTR;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	166 return -1;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	167 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	168
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	169 return nrand48(rand_state) % (count+1);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172 int wrapfd_select(int nfds, fd_set readfds, fd_set writefds,
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	173 fd_set exceptfds, struct timeval timeout) {
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	174 int i, nset, sel;
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	175 int ret = 0;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	176 int fdlist[IOWRAP_MAXFD+1] = {0};
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	177
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	178 if (!fuzz.wrapfds) {
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	179 return select(nfds, readfds, writefds, exceptfds, timeout);
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	180 }
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	181
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182 assert(nfds <= IOWRAP_MAXFD+1);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184 if (erand48(rand_state) < CHANCE_INTR) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185 errno = EINTR;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 return -1;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	187 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189 // read
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	190 if (readfds != NULL && erand48(rand_state) < CHANCE_READ1) {
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191 for (i = 0, nset = 0; i < nfds; i++) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192 if (FD_ISSET(i, readfds)) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193 assert(wrap_fds[i].mode != UNUSED);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194 fdlist[nset] = i;
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	195 nset++;
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	198 FD_ZERO(readfds);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 if (nset > 0) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201 // set one
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	202 sel = fdlist[nrand48(rand_state) % nset];
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	203 FD_SET(sel, readfds);
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204 ret++;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206 if (erand48(rand_state) < CHANCE_READ2) {
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	207 sel = fdlist[nrand48(rand_state) % nset];
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	208 if (!FD_ISSET(sel, readfds)) {
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	209 FD_SET(sel, readfds);
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210 ret++;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	212 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	214 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	215
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216 // write
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	217 if (writefds != NULL && erand48(rand_state) < CHANCE_WRITE1) {
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	218 for (i = 0, nset = 0; i < nfds; i++) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219 if (FD_ISSET(i, writefds)) {
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220 assert(wrap_fds[i].mode != UNUSED);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	221 fdlist[nset] = i;
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	222 nset++;
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 FD_ZERO(writefds);
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227 // set one
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	228 if (nset > 0) {
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	229 sel = fdlist[nrand48(rand_state) % nset];
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	230 FD_SET(sel, writefds);
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231 ret++;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	233 if (erand48(rand_state) < CHANCE_WRITE2) {
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	234 sel = fdlist[nrand48(rand_state) % nset];
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	235 if (!FD_ISSET(sel, writefds)) {
08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	236 FD_SET(sel, writefds);
1356 3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237 ret++;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	238 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	240 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	241 }
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	242 return ret;
3677a510f545 add wrapfd. improve fuzzer in makefile Matt Johnston <matt@ucc.asn.au> parents: diff changeset	243 }
1357 08f4fa4dc6a0 closer to working Matt Johnston <matt@ucc.asn.au> parents: 1356 diff changeset	244

Mercurial > dropbear

annotate fuzz-wrapfd.c @ 1381:c98e242dc505 fuzz