static FILE *Tinputfile;
static int stdout_enable;
+static void Tflushstdout( void) {
+ if (fflush(stdout)) Toutputerr();
+}
+
void Q_vb(void) {
if (!adns__vbuf_append(&vb,"",1)) Tnomem();
if (fprintf(stdout," %s\n",vb.buf) == EOF) Toutputerr();
- if (fflush(stdout)) Toutputerr();
+ Tflushstdout();
}
static void Pformat(const char *what) {
if (proutstr) stdout_enable= atoi(proutstr);
}
-static void P_read(void *p, size_t sz) {
+
+static void P_read_dump(const unsigned char *p0, size_t count, ssize_t d) {
+ fputs(" | ",stdout);
+ while (count) {
+ fprintf(stdout,"%02x", *p0);
+ p0 += d;
+ count--;
+ }
+}
+
+static void P_read(void *p, size_t sz, const char *what) {
+ long pos = ftell(Tinputfile);
ssize_t got = fread(p,1,sz,Tinputfile);
Pcheckinput();
assert(got==sz);
+ if (stdout_enable && sz) {
+ fprintf(stdout,"%8lx %8s:",pos,what);
+ P_read_dump(p, sz, +1);
+ if (sz<=16) {
+ P_read_dump((const unsigned char *)p+sz-1, sz, -1);
+ }
+ fputs(" |\n",stdout);
+ Tflushstdout();
+ }
}
-#define P_READ(x) (P_read(&(x), sizeof((x))))
+#define P_READ(x) (P_read(&(x), sizeof((x)), #x))
static unsigned P_fdf(int fd) {
assert(fd>=0 && fd<fdtab.used);
int l;
P_READ(l);
if (l<0 || l>maxlen) Pformat("bad byte block len");
- P_read(buf, l);
+ P_read(buf, l, "bytes");
return l;
}
-static void Pfdset(fd_set *set, int max) {
- uint16_t got;
- int fd, ngot=0;
+static void Pfdset(fd_set *set, int max, int *r_io) {
+ uint16_t fdmap;
+ int fd, nfdmap=0;
+
+ if (!set)
+ return;
+
+ for (fd=max-1; fd>=0; fd--) {
+ if (nfdmap==0) {
+ P_READ(fdmap);
+ nfdmap= 16;
+ }
+ _Bool y = fdmap & 1u;
+ fdmap >>= 1;
+ nfdmap--;
- for (fd=0; fd<max; fd++) {
if (!FD_ISSET(fd,set)) continue;
+
P_fdf(fd);
- if (ngot==0) {
- P_READ(got);
- ngot= 16;
- }
- if (!(got & 1u)) {
+
+ if (y) {
+ (*r_io)++;
+ } else {
FD_CLR(fd,set);
}
- got >>= 1;
- ngot--;
}
}
+#ifdef FUZZRAW_SYNC
+static void Psync(const char *exp, char *got, size_t sz, const char *what) {
+ P_read(got,sz,"syscall");
+ if (memcmp(exp,got,sz)) Pformat(what);
+}
+#endif
+
#ifdef HAVE_POLL
-static void Ppollfds(struct pollfd *fds, int nfds) {
-int fd;
+static void Ppollfds(struct pollfd *fds, int nfds, int *r_io) {
+ int fd;
for (fd=0; fd<nfds; fd++) {
if (!fds[fd].events) continue;
P_fdf(fd);
P_READ(fds[fd].revents);
+ if (fds[fd].revents)
+ (*r_io)++;
}
}
#endif
static int P_succfail(void) {
- int r;
- P_READ(r);
- if (r<0 && -r<Tnerrnos) {
- errno= Terrnos[-r].v;
+ int e;
+ P_READ(e);
+ if (e<0 && -e<Tnerrnos) {
+ errno= Terrnos[-e].v;
return -1;
- } else if (r>0 && r<=255) {
- errno= r;
+ } else if (e>0 && e<=255) {
+ errno= e;
return -1;
- } else if (r) {
+ } else if (e) {
Pformat("wrong errno value");
}
return 0;
hm_create_proto_h
int H$1(hm_args_massage($3,void)) {
int r;
- m4_define(`hm_rv_fd',`')
- m4_define(`hm_rv_any',`')
- m4_define(`hm_rv_len',`')
- m4_define(`hm_rv_must',`')
- m4_define(`hm_rv_succfail',`')
- m4_define(`hm_rv_fcntl',`')
+ hm_create_nothing
$2
hm_create_hqcall_vars
Q$1(hm_args_massage($3));
}
+#ifdef FUZZRAW_SYNC
+ static const char sync_expect[]= "$1";
+ static char sync_got[sizeof(sync_expect)];
+ Psync(sync_expect, sync_got, sizeof(sync_got), "sync lost: exp=$1");
+#endif
+
m4_define(`hm_rv_succfail',`
r= P_succfail();
if (r<0) return r;
m4_define(`hm_rv_must',`
r= 0;
')
+ m4_define(`hm_rv_select',`hm_rv_succfail')
+ m4_define(`hm_rv_poll',`hm_rv_succfail')
m4_define(`hm_rv_fcntl',`
unsigned flg = P_fdf(fd);
if (cmd == F_GETFL) {
$2
hm_create_nothing
- m4_define(`hm_arg_fdset_io',`Pfdset($'`1,$'`2);')
- m4_define(`hm_arg_pollfds_io',`Ppollfds($'`1,$'`2);')
+ m4_define(`hm_arg_fdset_io',`Pfdset($'`1,$'`2,&r);')
+ m4_define(`hm_arg_pollfds_io',`Ppollfds($'`1,$'`2,&r);')
m4_define(`hm_arg_addr_out',`Paddr($'`1,$'`2);')
$3
m4_define(`hm_arg_bytes_out',`r= Pbytes($'`2,$'`4);')
$3
+ hm_create_nothing
+ m4_define(`hm_rv_selectpoll',`
+ if (($'`1) && !r) Pformat("select/poll returning 0 but infinite timeout");
+ ')
+ m4_define(`hm_rv_select',`hm_rv_selectpoll(!to)')
+ m4_define(`hm_rv_poll',`hm_rv_selectpoll(timeout<0)')
+ $2
+
return r;
}
')
m4_include(`hsyscalls.i4')
int Hclose(int fd) {
- int r;
P_fdf(fd);
fdtab.buf[fd]= 0;
- hm_rv_succfail
- return r;
+ return P_succfail();
}