[adns] / regress / hplayback.c.m4

m4_dnl hplayback.c.m4
m4_dnl (part of complex test harness, not of the library)
m4_dnl - playback routines

m4_dnl  This file is part of adns, which is
m4_dnl    Copyright (C) 1997-2000,2003,2006  Ian Jackson
m4_dnl    Copyright (C) 1999-2000,2003,2006  Tony Finch
m4_dnl    Copyright (C) 1991 Massachusetts Institute of Technology
m4_dnl  (See the file INSTALL for full details.)
m4_dnl  
m4_dnl  This program is free software; you can redistribute it and/or modify
m4_dnl  it under the terms of the GNU General Public License as published by
m4_dnl  the Free Software Foundation; either version 2, or (at your option)
m4_dnl  any later version.
m4_dnl  
m4_dnl  This program is distributed in the hope that it will be useful,
m4_dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
m4_dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
m4_dnl  GNU General Public License for more details.
m4_dnl  
m4_dnl  You should have received a copy of the GNU General Public License
m4_dnl  along with this program; if not, write to the Free Software Foundation,
m4_dnl  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 

m4_include(hmacros.i4)

#include <assert.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/time.h>

#include <unistd.h>
#include <fcntl.h>

#include "harness.h"

static FILE *Tinputfile, *Treportfile;
static vbuf vb2;

extern void Tshutdown(void) {
  adns__vbuf_free(&vb2);
}

static void Tensurereportfile(void) {
  const char *fdstr;
  int fd;

  if (Treportfile) return;
  Treportfile= stderr;
  fdstr= getenv("ADNS_TEST_REPORT_FD"); if (!fdstr) return;
  fd= atoi(fdstr);
  Treportfile= fdopen(fd,"a"); if (!Treportfile) Tfailed("fdopen ADNS_TEST_REPORT_FD");
}

static void Psyntax(const char *where) {
  fprintf(stderr,"adns test harness: syntax error in test log input file: %s\n",where);
  exit(-1);
}

static void Pcheckinput(void) {
  if (ferror(Tinputfile)) Tfailed("read test log input file");
  if (feof(Tinputfile)) Psyntax("eof at syscall reply");
}

void Tensurerecordfile(void) {
  const char *fdstr;
  int fd;
  int chars;
  unsigned long sec, usec;

  if (Tinputfile) return;
  Tinputfile= stdin;
  fdstr= getenv("ADNS_TEST_IN_FD");
  if (fdstr) {
    fd= atoi(fdstr);
    Tinputfile= fdopen(fd,"r"); if (!Tinputfile) Tfailed("fdopen ADNS_TEST_IN_FD");
  }
  setvbuf(Tinputfile,0,_IONBF,0);

  if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
  fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
  chars= -1;
  sscanf(vb2.buf," start %lu.%lu%n",&sec,&usec,&chars);
  if (chars==-1) Psyntax("start time invalid");
  currenttime.tv_sec= sec;
  currenttime.tv_usec= usec;
  if (vb2.buf[chars] != hm_squote\nhm_squote) Psyntax("not newline after start time");
}

static void Parg(const char *argname) {
  int l;

  if (vb2.buf[vb2.used++] != hm_squote hm_squote) Psyntax("not a space before argument");
  l= strlen(argname);
  if (memcmp(vb2.buf+vb2.used,argname,l)) Psyntax("argument name wrong");
  vb2.used+= l;
  if (vb2.buf[vb2.used++] != hm_squote=hm_squote) Psyntax("not = after argument name");
}

static int Pstring_maybe(const char *string) {
  int l;

  l= strlen(string);
  if (memcmp(vb2.buf+vb2.used,string,l)) return 0;
  vb2.used+= l;
  return 1;
}

static void Pstring(const char *string, const char *emsg) {
  if (Pstring_maybe(string)) return;
  Psyntax(emsg);
}

static int Perrno(const char *stuff) {
  const struct Terrno *te;
  int r;
  char *ep;

  for (te= Terrnos; te->n && strcmp(te->n,stuff); te++);
  if (te->n) return te->v;
  r= strtoul(stuff+2,&ep,10);
  if (*ep) Psyntax("errno value not recognised, not numeric");
  return r;
}

static void P_updatetime(void) {
  int chars;
  unsigned long sec, usec;

  if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
  fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
  chars= -1;
  sscanf(vb2.buf," +%lu.%lu%n",&sec,&usec,&chars);
  if (chars==-1) Psyntax("update time invalid");
  currenttime.tv_sec+= sec;
  currenttime.tv_usec+= usec;
  if (currenttime.tv_usec > 1000000) {
    currenttime.tv_sec++;
    currenttime.tv_usec -= 1000000;
  }
  if (vb2.buf[chars] != hm_squote\nhm_squote) Psyntax("not newline after update time");
}

static void Pfdset(fd_set *set, int max) {
  int r, c;
  char *ep;
  
  if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("fd set start not [");
  FD_ZERO(set);
  if (vb2.buf[vb2.used] == hm_squote]hm_squote) { vb2.used++; return; }
  for (;;) {
    r= strtoul(vb2.buf+vb2.used,&ep,10);
    if (r>=max) Psyntax("fd set member > max");
    if (ep == (char*)vb2.buf+vb2.used) Psyntax("empty entry in fd set");
    FD_SET(r,set);
    vb2.used= ep - (char*)vb2.buf;
    c= vb2.buf[vb2.used++];
    if (c == hm_squote]hm_squote) break;
    if (c != hm_squote,hm_squote) Psyntax("fd set separator not ,");
  }
}

#ifdef HAVE_POLL
static int Ppollfdevents(void) {
  int events;

  if (Pstring_maybe("0")) return 0;
  events= 0;

  if (Pstring_maybe("POLLIN")) {
    events |= POLLIN;
    if (!Pstring_maybe("|")) return events;
  }

  if (Pstring_maybe("POLLOUT")) {
    events |= POLLOUT;
    if (!Pstring_maybe("|")) return events;
  }

  Pstring("POLLPRI","pollfdevents PRI?");
  return events;
}

static void Ppollfds(struct pollfd *fds, int nfds) {
  int i;
  char *ep;
  const char *comma= "";
  
  if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("pollfds start not [");
  for (i=0; i<nfds; i++) {
    Pstring("{fd=","{fd= in pollfds");
    fds->fd= strtoul(vb2.buf+vb2.used,&ep,10);
    vb2.used= ep - (char*)vb2.buf;    
    Pstring(", events=",", events= in pollfds");
    fds->events= Ppollfdevents();
    Pstring(", revents=",", revents= in pollfds");
    fds->revents= Ppollfdevents();
    Pstring("}","} in pollfds");
    Pstring(comma,"separator in pollfds");
    comma= ", ";
  }
  if (vb2.buf[vb2.used++] != hm_squote]hm_squote) Psyntax("pollfds end not ]");
}
#endif

static void Paddr(struct sockaddr *addr, int *lenr) {
  struct sockaddr_in *sa= (struct sockaddr_in*)addr;
  char *p, *ep;
  long ul;
  
  assert(*lenr >= sizeof(*sa));
  p= strchr(vb2.buf+vb2.used,':');
  if (!p) Psyntax("no port on address");
  *p++= 0;
  memset(sa,0,sizeof(*sa));
  sa->sin_family= AF_INET;
  if (!inet_aton(vb2.buf+vb2.used,&sa->sin_addr)) Psyntax("invalid address");
  ul= strtoul(p,&ep,10);
  if (*ep && *ep != hm_squote hm_squote) Psyntax("invalid port (bad syntax)");
  if (ul >= 65536) Psyntax("port too large");
  sa->sin_port= htons(ul);
  *lenr= sizeof(*sa);

  vb2.used= ep - (char*)vb2.buf;
}

static int Pbytes(byte *buf, int maxlen) {
  static const char hexdigits[]= "0123456789abcdef";

  int c, v, done;
  const char *pf;

  done= 0;
  for (;;) {
    c= getc(Tinputfile); Pcheckinput();
    if (c=='\n' || c==' ' || c=='\t') continue;
    if (c=='.') break;
    pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid first hex digit");
    v= (pf-hexdigits)<<4;
    c= getc(Tinputfile); Pcheckinput();
    pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid second hex digit");
    v |= (pf-hexdigits);
    if (maxlen<=0) Psyntax("buffer overflow in bytes");
    *buf++= v;
    maxlen--; done++;
  }
  for (;;) {
    c= getc(Tinputfile); Pcheckinput();
    if (c=='\n') return done;
  }
}
  
void Q_vb(void) {
  int r;
  const char *nl;

  Tensurerecordfile();
  if (!adns__vbuf_ensure(&vb2,vb.used+2)) Tnomem();
  r= fread(vb2.buf,1,vb.used+2,Tinputfile);
  if (feof(Tinputfile)) {
    fprintf(stderr,"adns test harness: input ends prematurely; program did:\n %.*s\n",
           vb.used,vb.buf);
    exit(-1);
  }
  Pcheckinput();
  if (vb2.buf[0] != hm_squote hm_squote) Psyntax("not space before call");
  if (memcmp(vb.buf,vb2.buf+1,vb.used) ||
      vb2.buf[vb.used+1] != hm_squote\nhm_squote) {
    fprintf(stderr,
            "adns test harness: program did unexpected:\n %.*s\n"
            "was expecting:\n %.*s\n",
            vb.used,vb.buf, vb.used,vb2.buf+1);
    exit(1);
  }
  Tensurereportfile();
  nl= memchr(vb.buf,'\n',vb.used);
  fprintf(Treportfile," %.*s\n", (int)(nl ? nl - (const char*)vb.buf : vb.used), vb.buf);
}

m4_define(`hm_syscall', `
 hm_create_proto_h
int H$1(hm_args_massage($3,void)) {
 int r, amtread;
 m4_define(`hm_rv_fd',`char *ep;')
 m4_define(`hm_rv_any',`char *ep;')
 m4_define(`hm_rv_len',`')
 m4_define(`hm_rv_must',`')
 m4_define(`hm_rv_succfail',`')
 m4_define(`hm_rv_fcntl',`')
 $2

 hm_create_hqcall_vars
 $3

 hm_create_hqcall_init($1)
 $3

 hm_create_hqcall_args
 Q$1(hm_args_massage($3));

 m4_define(`hm_r_offset',`m4_len(` $1=')')
 if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
 fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();

 Tensurereportfile();
 fprintf(Treportfile,"%s",vb2.buf);
 amtread= strlen(vb2.buf);
 if (amtread<=0 || vb2.buf[--amtread]!=hm_squote\nhm_squote)
  Psyntax("badly formed line");
 vb2.buf[amtread]= 0;
 if (memcmp(vb2.buf," $1=",hm_r_offset)) Psyntax("syscall reply mismatch");

 if (vb2.buf[hm_r_offset] == hm_squoteEhm_squote) {
  int e;
  e= Perrno(vb2.buf+hm_r_offset);
  P_updatetime();
  errno= e;
  return -1;
 }

 m4_define(`hm_rv_succfail',`
  if (memcmp(vb2.buf+hm_r_offset,"OK",2)) Psyntax("success/fail not E* or OK");
  vb2.used= hm_r_offset+2;
  r= 0;
 ')
 m4_define(`hm_rv_len',`hm_rv_succfail')
 m4_define(`hm_rv_must',`hm_rv_succfail')
 m4_define(`hm_rv_any',`
  r= strtoul(vb2.buf+hm_r_offset,&ep,10);
  if (*ep && *ep!=hm_squote hm_squote) Psyntax("return value not E* or positive number");
  vb2.used= ep - (char*)vb2.buf;
 ')
 m4_define(`hm_rv_fd',`hm_rv_any')
 m4_define(`hm_rv_fcntl',`
  r= 0;
  if (cmd == F_GETFL) {
    if (!memcmp(vb2.buf+hm_r_offset,"O_NONBLOCK|...",14)) {
      r= O_NONBLOCK;
      vb2.used= hm_r_offset+14;
    } else if (!memcmp(vb2.buf+hm_r_offset,"~O_NONBLOCK&...",15)) {
      vb2.used= hm_r_offset+15;
    } else {
      Psyntax("fcntl flags not O_NONBLOCK|... or ~O_NONBLOCK&...");
    }
  } else if (cmd == F_SETFL) {
    hm_rv_succfail
  } else {
    Psyntax("fcntl not F_GETFL or F_SETFL");
  }
 ')
 $2

 hm_create_nothing
 m4_define(`hm_arg_fdset_io',`Parg("$'`1"); Pfdset($'`1,$'`2);')
 m4_define(`hm_arg_pollfds_io',`Parg("$'`1"); Ppollfds($'`1,$'`2);')
 m4_define(`hm_arg_addr_out',`Parg("$'`1"); Paddr($'`1,$'`2);')
 $3
 assert(vb2.used <= amtread);
 if (vb2.used != amtread) Psyntax("junk at end of line");

 hm_create_nothing
 m4_define(`hm_arg_bytes_out',`r= Pbytes($'`2,$'`4);')
 $3

 P_updatetime();
 return r;
}
')

m4_define(`hm_specsyscall', `')

m4_include(`hsyscalls.i4')
Commit	Line	Data
70a778e5	1	m4_dnl hplayback.c.m4
	2	m4_dnl (part of complex test harness, not of the library)
	3	m4_dnl - playback routines
	4
ae8cc977	5	m4_dnl This file is part of adns, which is
	6	m4_dnl Copyright (C) 1997-2000,2003,2006 Ian Jackson
	7	m4_dnl Copyright (C) 1999-2000,2003,2006 Tony Finch
	8	m4_dnl Copyright (C) 1991 Massachusetts Institute of Technology
	9	m4_dnl (See the file INSTALL for full details.)
70a778e5	10	m4_dnl
	11	m4_dnl This program is free software; you can redistribute it and/or modify
	12	m4_dnl it under the terms of the GNU General Public License as published by
	13	m4_dnl the Free Software Foundation; either version 2, or (at your option)
	14	m4_dnl any later version.
	15	m4_dnl
	16	m4_dnl This program is distributed in the hope that it will be useful,
	17	m4_dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	m4_dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	m4_dnl GNU General Public License for more details.
	20	m4_dnl
	21	m4_dnl You should have received a copy of the GNU General Public License
	22	m4_dnl along with this program; if not, write to the Free Software Foundation,
	23	m4_dnl Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	24
	25	m4_include(hmacros.i4)
	26
	27	#include <assert.h>
	28	#include <string.h>
70a778e5	29	#include <errno.h>
	30	#include <stdlib.h>
	31
bbede9a3	32	#include <sys/types.h>
70a778e5	33	#include <sys/socket.h>
	34	#include <netinet/in.h>
	35	#include <arpa/inet.h>
a069d77f	36	#include <sys/time.h>
70a778e5	37
bbede9a3	38	#include <unistd.h>
	39	#include <fcntl.h>
	40
70a778e5	41	#include "harness.h"
70a778e5	42
12c5b204	43	static FILE Tinputfile, Treportfile;
70a778e5	44	static vbuf vb2;
70a778e5	45
914a5ff5	46	extern void Tshutdown(void) {
	47	adns__vbuf_free(&vb2);
	48	}
	49
12c5b204	50	static void Tensurereportfile(void) {
	51	const char *fdstr;
	52	int fd;
	53
68000374	54	if (Treportfile) return;
12c5b204	55	Treportfile= stderr;
	56	fdstr= getenv("ADNS_TEST_REPORT_FD"); if (!fdstr) return;
	57	fd= atoi(fdstr);
	58	Treportfile= fdopen(fd,"a"); if (!Treportfile) Tfailed("fdopen ADNS_TEST_REPORT_FD");
	59	}
	60
70a778e5	61	static void Psyntax(const char *where) {
	62	fprintf(stderr,"adns test harness: syntax error in test log input file: %s\n",where);
	63	exit(-1);
	64	}
	65
	66	static void Pcheckinput(void) {
	67	if (ferror(Tinputfile)) Tfailed("read test log input file");
	68	if (feof(Tinputfile)) Psyntax("eof at syscall reply");
	69	}
	70
87dd6345	71	void Tensurerecordfile(void) {
98b6d5b4	72	const char *fdstr;
	73	int fd;
	74	int chars;
	75	unsigned long sec, usec;
	76
	77	if (Tinputfile) return;
	78	Tinputfile= stdin;
	79	fdstr= getenv("ADNS_TEST_IN_FD");
	80	if (fdstr) {
	81	fd= atoi(fdstr);
	82	Tinputfile= fdopen(fd,"r"); if (!Tinputfile) Tfailed("fdopen ADNS_TEST_IN_FD");
	83	}
4fad263d	84	setvbuf(Tinputfile,0,_IONBF,0);
98b6d5b4	85
	86	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	87	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
	88	chars= -1;
	89	sscanf(vb2.buf," start %lu.%lu%n",&sec,&usec,&chars);
	90	if (chars==-1) Psyntax("start time invalid");
	91	currenttime.tv_sec= sec;
	92	currenttime.tv_usec= usec;
	93	if (vb2.buf[chars] != hm_squote\nhm_squote) Psyntax("not newline after start time");
	94	}
	95
70a778e5	96	static void Parg(const char *argname) {
	97	int l;
	98
	99	if (vb2.buf[vb2.used++] != hm_squote hm_squote) Psyntax("not a space before argument");
	100	l= strlen(argname);
	101	if (memcmp(vb2.buf+vb2.used,argname,l)) Psyntax("argument name wrong");
	102	vb2.used+= l;
	103	if (vb2.buf[vb2.used++] != hm_squote=hm_squote) Psyntax("not = after argument name");
	104	}
	105
8b1171e6	106	static int Pstring_maybe(const char *string) {
	107	int l;
	108
	109	l= strlen(string);
	110	if (memcmp(vb2.buf+vb2.used,string,l)) return 0;
	111	vb2.used+= l;
	112	return 1;
	113	}
	114
	115	static void Pstring(const char string, const char emsg) {
	116	if (Pstring_maybe(string)) return;
	117	Psyntax(emsg);
	118	}
	119
70a778e5	120	static int Perrno(const char *stuff) {
	121	const struct Terrno *te;
	122	int r;
	123	char *ep;
	124
	125	for (te= Terrnos; te->n && strcmp(te->n,stuff); te++);
	126	if (te->n) return te->v;
79833e62	127	r= strtoul(stuff+2,&ep,10);
79833e62	128	if (*ep) Psyntax("errno value not recognised, not numeric");
70a778e5	129	return r;
	130	}
	131
98b6d5b4	132	static void P_updatetime(void) {
98b6d5b4	133	int chars;
70a778e5	134	unsigned long sec, usec;
98b6d5b4	135
	136	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	137	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
70a778e5	138	chars= -1;
98b6d5b4	139	sscanf(vb2.buf," +%lu.%lu%n",&sec,&usec,&chars);
	140	if (chars==-1) Psyntax("update time invalid");
	141	currenttime.tv_sec+= sec;
	142	currenttime.tv_usec+= usec;
	143	if (currenttime.tv_usec > 1000000) {
	144	currenttime.tv_sec++;
	145	currenttime.tv_usec -= 1000000;
70a778e5	146	}
98b6d5b4	147	if (vb2.buf[chars] != hm_squote\nhm_squote) Psyntax("not newline after update time");
70a778e5	148	}
	149
	150	static void Pfdset(fd_set *set, int max) {
	151	int r, c;
	152	char *ep;
	153
	154	if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("fd set start not [");
	155	FD_ZERO(set);
fe950039	156	if (vb2.buf[vb2.used] == hm_squote]hm_squote) { vb2.used++; return; }
70a778e5	157	for (;;) {
	158	r= strtoul(vb2.buf+vb2.used,&ep,10);
	159	if (r>=max) Psyntax("fd set member > max");
fe950039	160	if (ep == (char*)vb2.buf+vb2.used) Psyntax("empty entry in fd set");
70a778e5	161	FD_SET(r,set);
	162	vb2.used= ep - (char*)vb2.buf;
	163	c= vb2.buf[vb2.used++];
	164	if (c == hm_squote]hm_squote) break;
	165	if (c != hm_squote,hm_squote) Psyntax("fd set separator not ,");
	166	}
	167	}
	168
636b69b1	169	#ifdef HAVE_POLL
8b1171e6	170	static int Ppollfdevents(void) {
	171	int events;
	172
	173	if (Pstring_maybe("0")) return 0;
	174	events= 0;
	175
	176	if (Pstring_maybe("POLLIN")) {
	177	events \|= POLLIN;
	178	if (!Pstring_maybe("\|")) return events;
	179	}
	180
	181	if (Pstring_maybe("POLLOUT")) {
	182	events \|= POLLOUT;
	183	if (!Pstring_maybe("\|")) return events;
	184	}
	185
	186	Pstring("POLLPRI","pollfdevents PRI?");
	187	return events;
	188	}
	189
	190	static void Ppollfds(struct pollfd *fds, int nfds) {
	191	int i;
	192	char *ep;
	193	const char *comma= "";
	194
	195	if (vb2.buf[vb2.used++] != hm_squote[hm_squote) Psyntax("pollfds start not [");
	196	for (i=0; i<nfds; i++) {
	197	Pstring("{fd=","{fd= in pollfds");
	198	fds->fd= strtoul(vb2.buf+vb2.used,&ep,10);
	199	vb2.used= ep - (char*)vb2.buf;
	200	Pstring(", events=",", events= in pollfds");
	201	fds->events= Ppollfdevents();
	202	Pstring(", revents=",", revents= in pollfds");
	203	fds->revents= Ppollfdevents();
	204	Pstring("}","} in pollfds");
	205	Pstring(comma,"separator in pollfds");
	206	comma= ", ";
	207	}
	208	if (vb2.buf[vb2.used++] != hm_squote]hm_squote) Psyntax("pollfds end not ]");
	209	}
636b69b1	210	#endif
8b1171e6	211
70a778e5	212	static void Paddr(struct sockaddr addr, int lenr) {
	213	struct sockaddr_in sa= (struct sockaddr_in)addr;
	214	char p, ep;
	215	long ul;
	216
	217	assert(lenr >= sizeof(sa));
	218	p= strchr(vb2.buf+vb2.used,':');
	219	if (!p) Psyntax("no port on address");
	220	*p++= 0;
	221	memset(sa,0,sizeof(*sa));
	222	sa->sin_family= AF_INET;
	223	if (!inet_aton(vb2.buf+vb2.used,&sa->sin_addr)) Psyntax("invalid address");
	224	ul= strtoul(p,&ep,10);
	225	if (ep && ep != hm_squote hm_squote) Psyntax("invalid port (bad syntax)");
	226	if (ul >= 65536) Psyntax("port too large");
	227	sa->sin_port= htons(ul);
	228	lenr= sizeof(sa);
	229
	230	vb2.used= ep - (char*)vb2.buf;
	231	}
	232
	233	static int Pbytes(byte *buf, int maxlen) {
	234	static const char hexdigits[]= "0123456789abcdef";
	235
	236	int c, v, done;
	237	const char *pf;
	238
	239	done= 0;
	240	for (;;) {
	241	c= getc(Tinputfile); Pcheckinput();
	242	if (c=='\n' \|\| c==' ' \|\| c=='\t') continue;
	243	if (c=='.') break;
	244	pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid first hex digit");
	245	v= (pf-hexdigits)<<4;
	246	c= getc(Tinputfile); Pcheckinput();
	247	pf= strchr(hexdigits,c); if (!pf) Psyntax("invalid second hex digit");
	248	v \|= (pf-hexdigits);
	249	if (maxlen<=0) Psyntax("buffer overflow in bytes");
	250	*buf++= v;
	251	maxlen--; done++;
	252	}
	253	for (;;) {
	254	c= getc(Tinputfile); Pcheckinput();
	255	if (c=='\n') return done;
	256	}
	257	}
	258
	259	void Q_vb(void) {
	260	int r;
fc938da6	261	const char *nl;
70a778e5	262
87dd6345	263	Tensurerecordfile();
70a778e5	264	if (!adns__vbuf_ensure(&vb2,vb.used+2)) Tnomem();
	265	r= fread(vb2.buf,1,vb.used+2,Tinputfile);
	266	if (feof(Tinputfile)) {
	267	fprintf(stderr,"adns test harness: input ends prematurely; program did:\n %.*s\n",
	268	vb.used,vb.buf);
	269	exit(-1);
	270	}
	271	Pcheckinput();
	272	if (vb2.buf[0] != hm_squote hm_squote) Psyntax("not space before call");
	273	if (memcmp(vb.buf,vb2.buf+1,vb.used) \|\|
	274	vb2.buf[vb.used+1] != hm_squote\nhm_squote) {
	275	fprintf(stderr,
	276	"adns test harness: program did unexpected:\n %.*s\n"
	277	"was expecting:\n %.*s\n",
	278	vb.used,vb.buf, vb.used,vb2.buf+1);
	279	exit(1);
	280	}
fc938da6	281	Tensurereportfile();
	282	nl= memchr(vb.buf,'\n',vb.used);
	283	fprintf(Treportfile," %.s\n", (int)(nl ? nl - (const char)vb.buf : vb.used), vb.buf);
70a778e5	284	}
	285
	286	m4_define(`hm_syscall', `
	287	hm_create_proto_h
	288	int H$1(hm_args_massage($3,void)) {
68000374	289	int r, amtread;
70a778e5	290	m4_define(`hm_rv_fd',`char *ep;')
	291	m4_define(`hm_rv_any',`char *ep;')
	292	m4_define(`hm_rv_len',`')
	293	m4_define(`hm_rv_must',`')
	294	m4_define(`hm_rv_succfail',`')
73c4c523	295	m4_define(`hm_rv_fcntl',`')
70a778e5	296	$2
	297
	298	hm_create_hqcall_vars
	299	$3
	300
	301	hm_create_hqcall_init($1)
	302	$3
	303
	304	hm_create_hqcall_args
	305	Q$1(hm_args_massage($3));
	306
	307	m4_define(`hm_r_offset',`m4_len(` $1=')')
	308	if (!adns__vbuf_ensure(&vb2,1000)) Tnomem();
	309	fgets(vb2.buf,vb2.avail,Tinputfile); Pcheckinput();
12c5b204	310
12c5b204	311	Tensurereportfile();
fc938da6	312	fprintf(Treportfile,"%s",vb2.buf);
68000374	313	amtread= strlen(vb2.buf);
68000374	314	if (amtread<=0 \|\| vb2.buf[--amtread]!=hm_squote\nhm_squote)
70a778e5	315	Psyntax("badly formed line");
68000374	316	vb2.buf[amtread]= 0;
70a778e5	317	if (memcmp(vb2.buf," $1=",hm_r_offset)) Psyntax("syscall reply mismatch");
	318
	319	if (vb2.buf[hm_r_offset] == hm_squoteEhm_squote) {
98b6d5b4	320	int e;
	321	e= Perrno(vb2.buf+hm_r_offset);
	322	P_updatetime();
	323	errno= e;
70a778e5	324	return -1;
	325	}
	326
	327	m4_define(`hm_rv_succfail',`
	328	if (memcmp(vb2.buf+hm_r_offset,"OK",2)) Psyntax("success/fail not E* or OK");
	329	vb2.used= hm_r_offset+2;
	330	r= 0;
	331	')
	332	m4_define(`hm_rv_len',`hm_rv_succfail')
	333	m4_define(`hm_rv_must',`hm_rv_succfail')
	334	m4_define(`hm_rv_any',`
	335	r= strtoul(vb2.buf+hm_r_offset,&ep,10);
	336	if (ep && ep!=hm_squote hm_squote) Psyntax("return value not E* or positive number");
	337	vb2.used= ep - (char*)vb2.buf;
	338	')
	339	m4_define(`hm_rv_fd',`hm_rv_any')
73c4c523	340	m4_define(`hm_rv_fcntl',`
	341	r= 0;
	342	if (cmd == F_GETFL) {
	343	if (!memcmp(vb2.buf+hm_r_offset,"O_NONBLOCK\|...",14)) {
	344	r= O_NONBLOCK;
	345	vb2.used= hm_r_offset+14;
	346	} else if (!memcmp(vb2.buf+hm_r_offset,"~O_NONBLOCK&...",15)) {
	347	vb2.used= hm_r_offset+15;
	348	} else {
	349	Psyntax("fcntl flags not O_NONBLOCK\|... or ~O_NONBLOCK&...");
	350	}
	351	} else if (cmd == F_SETFL) {
	352	hm_rv_succfail
	353	} else {
	354	Psyntax("fcntl not F_GETFL or F_SETFL");
	355	}
	356	')
70a778e5	357	$2
	358
	359	hm_create_nothing
	360	m4_define(`hm_arg_fdset_io',`Parg("$'`1"); Pfdset($'`1,$'`2);')
8b1171e6	361	m4_define(`hm_arg_pollfds_io',`Parg("$'`1"); Ppollfds($'`1,$'`2);')
70a778e5	362	m4_define(`hm_arg_addr_out',`Parg("$'`1"); Paddr($'`1,$'`2);')
70a778e5	363	$3
68000374	364	assert(vb2.used <= amtread);
68000374	365	if (vb2.used != amtread) Psyntax("junk at end of line");
70a778e5	366
	367	hm_create_nothing
	368	m4_define(`hm_arg_bytes_out',`r= Pbytes($'`2,$'`4);')
	369	$3
	370
98b6d5b4	371	P_updatetime();
70a778e5	372	return r;
	373	}
	374	')
	375
0ebff22d	376	m4_define(`hm_specsyscall', `')
0ebff22d	377
70a778e5	378	m4_include(`hsyscalls.i4')