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diff --git a/adns-0.6/regress/hcommon.c.m4 b/adns-0.6/regress/hcommon.c.m4
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+m4_dnl hcommon.c
+m4_dnl (part of complex test harness, not of the library)
+m4_dnl - routines used for both record and playback
+
+m4_dnl This file is
+m4_dnl Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
+m4_dnl
+m4_dnl It is part of adns, which is
+m4_dnl Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
+m4_dnl Copyright (C) 1999 Tony Finch <dot@dotat.at>
+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 <fcntl.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "harness.h"
+#include "internal.h"
+
+vbuf vb;
+FILE *Toutputfile= 0;
+struct timeval currenttime;
+
+const struct Terrno Terrnos[]= {
+ { "EAGAIN", EAGAIN },
+ { "EINPROGRESS", EINPROGRESS },
+ { "EINTR", EINTR },
+ { "EINVAL", EINVAL },
+ { "EMSGSIZE", EMSGSIZE },
+ { "ENOBUFS", ENOBUFS },
+ { "ENOENT", ENOENT },
+ { "ENOPROTOOPT", ENOPROTOOPT },
+ { "ENOSPC", ENOSPC },
+ { "EWOULDBLOCK", EWOULDBLOCK },
+ { "EHOSTUNREACH", EHOSTUNREACH },
+ { "ECONNREFUSED", ECONNREFUSED },
+ { "EPIPE", EPIPE },
+ { 0, 0 }
+};
+
+static vbuf vbw;
+
+int Hgettimeofday(struct timeval *tv, struct timezone *tz) {
+ Tmust("gettimeofday","tz",!tz);
+ *tv= currenttime;
+ return 0;
+}
+
+int Hwritev(int fd, const struct iovec *vector, size_t count) {
+ size_t i;
+
+ vbw.used= 0;
+ for (i=0; i<count; i++, vector++) {
+ if (!adns__vbuf_append(&vbw,vector->iov_base,vector->iov_len)) Tnomem();
+ }
+ return Hwrite(fd,vbw.buf,vbw.used);
+}
+
+m4_define(`hm_syscall', `
+ hm_create_proto_q
+void Q$1(hm_args_massage($3,void)) {
+
+ vb.used= 0;
+ Tvba("$1");
+ m4_define(`hm_na',`')
+ m4_define(`hm_arg_nullptr',`')
+ m4_define(`hm_arg_int', `Tvbf(" $'`1=%d",$'`1);')
+ m4_define(`hm_arg_fdset_io', `Tvbf(" $'`1="); Tvbfdset($'`2,$'`1);')
+ m4_define(`hm_arg_pollfds_io', `Tvbf(" $'`1="); Tvbpollfds($'`1,$'`2);')
+ m4_define(`hm_arg_timeval_in_rel_null', `
+ if ($'`1) Tvbf(" $'`1=%ld.%06ld",(long)$'`1->tv_sec,(long)$'`1->tv_usec);
+ else Tvba(" $'`1=null");')
+ m4_define(`hm_arg_must', `')
+ m4_define(`hm_arg_socktype', `
+ Tvbf($'`1==SOCK_STREAM ? " $'`1=SOCK_STREAM" : " $'`1=SOCK_DGRAM");')
+ m4_define(`hm_arg_ign', `')
+ m4_define(`hm_arg_fd', `Tvbf(" $'`1=%d",$'`1);')
+ m4_define(`hm_arg_fcntl_cmd_arg', `
+ if ($'`1 == F_SETFL) {
+ Tvbf(" $'`1=F_SETFL %s",arg & O_NONBLOCK ? "O_NONBLOCK|..." : "~O_NONBLOCK&...");
+ } else if ($'`1 == F_GETFL) {
+ Tvba(" $'`1=F_GETFL");
+ } else {
+ Tmust("$'`1","F_GETFL/F_SETFL",0);
+ }')
+ m4_define(`hm_arg_addr_in', `Tvba(" $'`1="); Tvbaddr($'`1,$'`2);')
+ m4_define(`hm_arg_bytes_in', `')
+ m4_define(`hm_arg_bytes_out', `Tvbf(" $'`4=%lu",(unsigned long)$'`4);')
+ m4_define(`hm_arg_addr_out', `Tvbf(" *$'`2=%d",$'`2);')
+ $3
+
+ hm_create_nothing
+ m4_define(`hm_arg_bytes_in', `Tvbbytes($'`2,$'`4);')
+ $3
+
+ Q_vb();
+}
+')
+
+m4_include(`hsyscalls.i4')
+
+
+void Tvbaddr(const struct sockaddr *addr, int len) {
+ const struct sockaddr_in *ai= (const struct sockaddr_in*)addr;
+
+ assert(len==sizeof(struct sockaddr_in));
+ assert(ai->sin_family==AF_INET);
+ Tvbf("%s:%u",inet_ntoa(ai->sin_addr),htons(ai->sin_port));
+}
+
+void Tvbbytes(const void *buf, int len) {
+ const byte *bp;
+ int i;
+
+ if (!len) { Tvba("\n ."); return; }
+ for (i=0, bp=buf; i<len; i++, bp++) {
+ if (!(i&31)) Tvba("\n ");
+ else if (!(i&3)) Tvba(" ");
+ Tvbf("%02x",*bp);
+ }
+ Tvba(".");
+}
+
+void Tvbfdset(int max, const fd_set *fds) {
+ int i;
+ const char *comma= "";
+
+ Tvba("[");
+ for (i=0; i<max; i++) {
+ if (!FD_ISSET(i,fds)) continue;
+ Tvba(comma);
+ Tvbf("%d",i);
+ comma= ",";
+ }
+ Tvba("]");
+}
+
+static void Tvbpollevents(int events) {
+ const char *delim= "";
+
+ events &= (POLLIN|POLLOUT|POLLPRI);
+ if (!events) { Tvba("0"); return; }
+ if (events & POLLIN) { Tvba("POLLIN"); delim= "|"; }
+ if (events & POLLOUT) { Tvba(delim); Tvba("POLLOUT"); delim= "|"; }
+ if (events & POLLPRI) { Tvba(delim); Tvba("POLLPRI"); }
+}
+
+void Tvbpollfds(const struct pollfd *fds, int nfds) {
+ const char *comma= "";
+
+ Tvba("[");
+ while (nfds>0) {
+ Tvba(comma);
+ Tvbf("{fd=%d, events=",fds->fd);
+ Tvbpollevents(fds->events);
+ Tvba(", revents=");
+ Tvbpollevents(fds->revents);
+ Tvba("}");
+ comma= ", ";
+ nfds--; fds++;
+ }
+ Tvba("]");
+}
+
+void Tvberrno(int e) {
+ const struct Terrno *te;
+
+ for (te= Terrnos; te->n && te->v != e; te++);
+ assert(te->n);
+ Tvba(te->n);
+}
+
+void Tvba(const char *str) {
+ if (!adns__vbuf_appendstr(&vb,str)) Tnomem();
+}
+
+void Tvbvf(const char *fmt, va_list al) {
+ char buf[1000];
+ buf[sizeof(buf)-2]= '\t';
+ vsnprintf(buf,sizeof(buf),fmt,al);
+ assert(buf[sizeof(buf)-2] == '\t');
+
+ Tvba(buf);
+}
+
+void Tvbf(const char *fmt, ...) {
+ va_list al;
+ va_start(al,fmt);
+ Tvbvf(fmt,al);
+ va_end(al);
+}
+
+
+void Tmust(const char *call, const char *arg, int cond) {
+ if (cond) return;
+ fprintf(stderr,"adns test harness: case not handled: system call %s, arg %s",call,arg);
+ exit(-1);
+}
+
+void Tfailed(const char *why) {
+ fprintf(stderr,"adns test harness: failure: %s: %s\n",why,strerror(errno));
+ exit(-1);
+}
+
+void Tnomem(void) {
+ Tfailed("unable to malloc/realloc");
+}
+
+void Toutputerr(void) {
+ Tfailed("write error on test harness output");
+}
+
+struct malloced {
+ struct malloced *next, *back;
+ size_t sz;
+ unsigned long count;
+ struct { double d; long ul; void *p; void (*fp)(void); } data;
+};
+
+static unsigned long malloccount, mallocfailat;
+static struct { struct malloced *head, *tail; } mallocedlist;
+
+#define MALLOCHSZ ((char*)&mallocedlist.head->data - (char*)mallocedlist.head)
+
+void *Hmalloc(size_t sz) {
+ struct malloced *newnode;
+ const char *mfavar;
+ char *ep;
+
+ assert(sz);
+
+ newnode= malloc(MALLOCHSZ + sz); if (!newnode) Tnomem();
+
+ LIST_LINK_TAIL(mallocedlist,newnode);
+ newnode->sz= sz;
+ newnode->count= ++malloccount;
+ if (!mallocfailat) {
+ mfavar= getenv("ADNS_REGRESS_MALLOCFAILAT");
+ if (mfavar) {
+ mallocfailat= strtoul(mfavar,&ep,10);
+ if (!mallocfailat || *ep) Tfailed("ADNS_REGRESS_MALLOCFAILAT bad value");
+ } else {
+ mallocfailat= ~0UL;
+ }
+ }
+ assert(newnode->count != mallocfailat);
+ memset(&newnode->data,0xc7,sz);
+ return &newnode->data;
+}
+
+void Hfree(void *ptr) {
+ struct malloced *oldnode;
+
+ if (!ptr) return;
+
+ oldnode= (void*)((char*)ptr - MALLOCHSZ);
+ LIST_UNLINK(mallocedlist,oldnode);
+ memset(&oldnode->data,0x38,oldnode->sz);
+ free(oldnode);
+}
+
+void *Hrealloc(void *op, size_t nsz) {
+ struct malloced *oldnode;
+ void *np;
+ size_t osz;
+
+ if (op) { oldnode= (void*)((char*)op - MALLOCHSZ); osz= oldnode->sz; } else { osz= 0; }
+ np= Hmalloc(nsz);
+ memcpy(np,op, osz>nsz ? nsz : osz);
+ Hfree(op);
+ return np;
+}
+
+void Hexit(int rv) {
+ struct malloced *loopnode;
+
+ Tshutdown();
+ adns__vbuf_free(&vb);
+ adns__vbuf_free(&vbw);
+ if (mallocedlist.head) {
+ fprintf(stderr,"adns test harness: memory leaked:");
+ for (loopnode=mallocedlist.head; loopnode; loopnode=loopnode->next)
+ fprintf(stderr," %lu(%lu)",loopnode->count,(unsigned long)loopnode->sz);
+ putc('\n',stderr);
+ if (ferror(stderr)) exit(-1);
+ }
+ exit(rv);
+}
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