summaryrefslogtreecommitdiff
path: root/emulators
diff options
context:
space:
mode:
authortron <tron@pkgsrc.org>2001-01-25 09:16:24 +0000
committertron <tron@pkgsrc.org>2001-01-25 09:16:24 +0000
commit94deb1519ddfe7242486c4ac92158eeaced05dce (patch)
treeb0423674747accded550dd20b574416869ad717a /emulators
parented88ec8f69ead27e5f138faeb4b49c179843b257 (diff)
downloadpkgsrc-94deb1519ddfe7242486c4ac92158eeaced05dce.tar.gz
Remove "rpm2pkg" which is a separate package now and bump version number
to 6.4nb1.
Diffstat (limited to 'emulators')
-rw-r--r--emulators/suse_base/Makefile20
-rw-r--r--emulators/suse_base/files/rpm2pkg.c708
-rw-r--r--emulators/suse_base/pkg/PLIST3
3 files changed, 4 insertions, 727 deletions
diff --git a/emulators/suse_base/Makefile b/emulators/suse_base/Makefile
index ea47d41cc25..8a2f121264d 100644
--- a/emulators/suse_base/Makefile
+++ b/emulators/suse_base/Makefile
@@ -1,15 +1,13 @@
-# $NetBSD: Makefile,v 1.19 2000/12/17 13:13:26 tron Exp $
+# $NetBSD: Makefile,v 1.20 2001/01/25 09:16:24 tron Exp $
-DISTNAME= suse_base-${SUSE_VERSION}
+DISTNAME= suse_base-${SUSE_VERSION}nb1
CATEGORIES= emulators
MASTER_SITES= ${MASTER_SITE_SUSE:=a1/}
DISTFILES= ${RPMFILES}
-MAINTAINER= tls@netbsd.org
+MAINTAINER= tron@netbsd.org
HOMEPAGE= http://www.suse.com/
-BUILD_DEPENDS+= ${RPMLIB}:../../misc/rpm
-
CONFLICTS= linux_SuSE-5.3 linux_lib-2.4 suse_base-6.1
ONLY_FOR_PLATFORM= NetBSD-*-i386
@@ -21,19 +19,8 @@ RPMFILES= aaa_dir.rpm shlibs.rpm libz.rpm \
RPMIGNOREPATH= tmp usr/tmp var
LINUX_LDD= ${PREFIX}/${EMULSUBDIR}/usr/bin/ldd
-RPMLIB= ${LOCALBASE}/lib/librpm.a
-
-# librpm.a needs libintl.a
-USE_LIBINTL= yes
-.if exists(/usr/include/libintl.h)
-LIBINTL= -lintl
-.else
-LIBINTL= -L${LOCALBASE}/lib -Wl,-R${LOCALBASE}/lib -lintl
-.endif
do-build:
- ${CC} ${FILESDIR}/rpm2pkg.c ${CFLAGS} -I${PREFIX}/include/rpm \
- ${RPMLIB} -lz ${LIBINTL} -o ${WRKSRC}/rpm2pkg
@for FILE in ${PKGDIR}/PLIST ${SCRIPTDIR}/*.sh; do \
${SED} -e 's#@@EMULDIR@@#${EMULDIR}#g' \
-e 's#@@EMULSUBDIR@@#${EMULSUBDIR}#g' \
@@ -44,7 +31,6 @@ do-install:
for FILE in ${WRKDIR}/*.sh; do \
${INSTALL_SCRIPT} $$FILE ${PREFIX}/sbin/`basename $$FILE .sh`; \
done
- ${INSTALL_PROGRAM} ${WRKSRC}/rpm2pkg ${PREFIX}/sbin
${MKDIR} ${EMULDIR}/dev
${LN} -fs /dev/sound ${EMULDIR}/dev/dsp
${LN} -fs /dev/null ${EMULDIR}/dev/null
diff --git a/emulators/suse_base/files/rpm2pkg.c b/emulators/suse_base/files/rpm2pkg.c
deleted file mode 100644
index 26fdc7ad4de..00000000000
--- a/emulators/suse_base/files/rpm2pkg.c
+++ /dev/null
@@ -1,708 +0,0 @@
-/*
-
- $NetBSD: rpm2pkg.c,v 1.2 1999/09/26 11:28:11 tron Exp $
-
-*/
-
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <cpio.h>
-#include <rpmlib.h>
-#include <zlib.h>
-
-char CPIOMagic[] = {'0','7','0','7','0','1'};
-
-#define CPIO_END_MARKER "TRAILER!!!"
-#define CPIO_FIELD_LENGTH 8
-
-#define CPIO_HDR_MODE 1
-#define CPIO_HDR_FILESIZE 6
-#define CPIO_HDR_NAMESIZE 11
-#define CPIO_NUM_HEADERS 13
-
-#define CP_IFMT 0170000
-
-#define TRUE 1
-#define FALSE 0
-
-#define GZREAD(s,b,l) (gzread((s),(b),(l))==l)
-
-extern char *__progname;
-
-struct ModeMap
- {
- long mm_CPIOMode;
- mode_t mm_SysMode;
- };
-struct ModeMap ModeMapTab[] =
- {
- {C_IRUSR,S_IRUSR},
- {C_IWUSR,S_IWUSR},
- {C_IXUSR,S_IXUSR},
- {C_IRGRP,S_IRGRP},
- {C_IWGRP,S_IWGRP},
- {C_IXGRP,S_IXGRP},
- {C_IROTH,S_IROTH},
- {C_IWOTH,S_IWOTH},
- {C_IXOTH,S_IXOTH},
- {C_ISUID,S_ISUID},
- {C_ISGID,S_ISGID},
- {C_ISVTX,S_ISVTX},
- {0,0}
- };
-
-typedef struct PListEntryStruct PListEntry;
-struct PListEntryStruct
- {
- PListEntry *pe_Childs[2];
- int pe_DirEmpty;
- mode_t pe_DirMode;
- char *pe_Link;
- char pe_Name[1];
- };
-
-#define pe_Left pe_Childs[0]
-#define pe_Right pe_Childs[1]
-
-typedef void PListEntryFunc(PListEntry *,FILE *);
-
-#define PLIST_ORDER_FORWARD 0
-#define PLIST_ORDER_BACKWARD 1
-
-PListEntry *InsertPListEntry(PListEntry **Tree,char *Name)
-
-{
- PListEntry *Node;
-
- while ((Node=*Tree)!=NULL)
- Tree=&((strcmp(Name,Node->pe_Name)<0)?Node->pe_Left:Node->pe_Right);
-
- if ((Node=malloc(sizeof(PListEntry)+strlen(Name)))==NULL)
- {
- perror(__progname);
- exit(EXIT_FAILURE);
- }
-
- Node->pe_Left=NULL;
- Node->pe_Right=NULL;
- Node->pe_DirEmpty=FALSE;
- Node->pe_Link=NULL;
- (void)strcpy(Node->pe_Name,Name);
-
- return *Tree=Node;
-}
-
-PListEntry *FindPListEntry(PListEntry *Tree,char *Name)
-
-{
- while (Tree!=NULL)
- {
- int Result;
-
- if ((Result=strcmp(Name,Tree->pe_Name))==0) break;
- Tree=(Result<0)?Tree->pe_Left:Tree->pe_Right;
- }
-
- return Tree;
-}
-
-void PListEntryFile(PListEntry *Node,FILE *Out)
-
-{
- (void)fputs(Node->pe_Name,Out);
- (void)fputc('\n',Out);
-}
-
-void PListEntryLink(PListEntry *Node,FILE *Out)
-
-{
- (void)fprintf(Out,"@exec ln -fs %s %%D/%s\n",Node->pe_Link,Node->pe_Name);
- (void)fprintf(Out,"@unexec rm -f %%D/%s\n",Node->pe_Name);
-}
-
-void PListEntryMakeDir(PListEntry *Node,FILE *Out)
-
-{
- if (Node->pe_DirEmpty)
- (void)fprintf(Out,
- "@exec mkdir -m %o -p %%D/%s\n",
- Node->pe_DirMode,
- Node->pe_Name);
-}
-
-void PListEntryRemoveDir(PListEntry *Node,FILE *Out)
-
-{
- (void)fprintf(Out,"@dirrm %s\n",Node->pe_Name);
-}
-
-void ProcessPList(PListEntry *Tree,PListEntryFunc Func,int Order,FILE *Out)
-
-{
- while (Tree!=NULL)
- {
- if (Tree->pe_Childs[Order]!=NULL)
- ProcessPList(Tree->pe_Childs[Order],Func,Order,Out);
- Func(Tree,Out);
- Tree=Tree->pe_Childs[1-Order];
- }
-}
-
-char **ArrayAdd(char **Array,char *String)
-
-{
- int Old;
-
- Old=0;
- if (Array!=NULL) while (Array[Old]!=NULL) Old++;
- if ((Array=realloc(Array,sizeof(char *)*(Old+2)))==NULL) return NULL;
-
- Array[Old++]=String;
- Array[Old]=NULL;
-
- return Array;
-}
-
-void Usage(void)
-
-{
- (void)fprintf(stderr,
- "Usage: %s [-d directory] [-f packlist] [[-i ignorepath] ...]\n"
- " [-p prefix] rpmfile [...]\n",
- __progname);
- exit(EXIT_FAILURE);
-}
-
-int SkipAndAlign(gzFile In,long Skip)
-
-{
- z_off_t Pos,NewPos;
-
- if ((Pos=gztell(In))<0) return FALSE;
-
- NewPos=(Pos+Skip+3)&(~3);
- return ((Pos==NewPos)||(gzseek(In,NewPos,SEEK_SET)==NewPos));
-}
-
-char *GetData(gzFile In,long Length)
-
-{
- char *Ptr;
-
- if ((Ptr=malloc(Length+1))!=NULL)
- {
- if (GZREAD(In,Ptr,Length)&&SkipAndAlign(In,0))
- {
- Ptr[Length]='\0';
- return Ptr;
- }
- free(Ptr);
- }
-
- return NULL;
-}
-
-int GetCPIOHeader(gzFile In,long *Fields,char **Name)
-
-{
- char Buffer[CPIO_NUM_HEADERS*CPIO_FIELD_LENGTH];
- char *Ptr;
- int Index;
- long Value;
-
- *Name=NULL;
-
- if (!GZREAD(In,Buffer,sizeof(CPIOMagic))) return FALSE;
- if (memcmp(Buffer,CPIOMagic,sizeof(CPIOMagic))!=0) return FALSE;
-
- if (gzread(In,Buffer,sizeof(Buffer))!=sizeof(Buffer)) return FALSE;
- Ptr=Buffer;
- Index=sizeof(Buffer);
- Value=0;
- while (Index-->0)
- {
- Value<<=4;
- if ((*Ptr>='0')&&(*Ptr<='9')) Value+=(long)(*Ptr++-'0');
- else
- if ((*Ptr>='A')&&(*Ptr<='F')) Value+=(long)(*Ptr++-'A')+10;
- else
- if ((*Ptr>='a')&&(*Ptr<='f')) Value+=(long)(*Ptr++-'a')+10;
- else return FALSE;
-
- if ((Index%CPIO_FIELD_LENGTH)==0)
- {
- *Fields++=Value;
- Value=0;
- }
- }
-
- Value=Fields[CPIO_HDR_NAMESIZE-CPIO_NUM_HEADERS];
- if ((*Name=GetData(In,Value))==NULL) return FALSE;
- return ((*Name)[Value-1]=='\0');
-}
-
-mode_t ConvertMode(long CPIOMode)
-
-{
- mode_t Mode;
- int Index;
-
- Mode=0;
- Index=0;
- while (ModeMapTab[Index].mm_CPIOMode!=0)
- {
- if ((CPIOMode&ModeMapTab[Index].mm_CPIOMode)!=0)
- Mode|=ModeMapTab[Index].mm_SysMode;
- Index++;
- }
-
- return Mode;
-}
-
-int MakeTargetDir(char *Name,PListEntry **Dirs,int MarkNonEmpty)
-
-{
- char *Basename;
- PListEntry *Dir;
- struct stat Stat;
- int Result;
-
- if ((Basename=strrchr(Name,'/'))==NULL) return TRUE;
-
- *Basename='\0';
- if ((Dir=FindPListEntry(*Dirs,Name))!=NULL)
- {
- *Basename='/';
- Dir->pe_DirEmpty=!MarkNonEmpty;
- return TRUE;
- }
-
- if (!MakeTargetDir(Name,Dirs,TRUE))
- {
- *Basename='/';
- return FALSE;
- }
-
- if (stat(Name,&Stat)==0) Result=S_ISDIR(Stat.st_mode);
- else
- if (errno!=ENOENT) Result=FALSE;
- else
- if ((Result=(mkdir(Name,S_IRWXU|S_IRWXG|S_IRWXO)==0)))
- InsertPListEntry(Dirs,Name)->pe_DirMode=S_IRWXU|S_IRWXG|S_IRWXO;
-
- *Basename='/';
- return Result;
-}
-
-char *StrCat(char *Prefix,char *Suffix)
-
-{
- int Length;
- char *Str;
-
- Length=strlen(Prefix);
- if ((Str=malloc(Length+strlen(Suffix)+1))!=NULL)
- {
- (void)memcpy(Str,Prefix,Length);
- (void)strcpy(&Str[Length],Suffix);
- }
- return Str;
-}
-
-int MakeDir(char *Name,mode_t Mode,int *OldDir)
-
-{
- struct stat Stat;
-
- *OldDir=FALSE;
- if (mkdir(Name,Mode)==0) return TRUE;
-
- if ((errno!=EEXIST)||
- (lstat(Name,&Stat)<0)||
- !S_ISDIR(Stat.st_mode)) return FALSE;
-
- *OldDir=TRUE;
- return TRUE;
-}
-
-int MakeSymLink(char *Link,char *Name)
-
-{
- struct stat Stat;
-
- if (symlink(Link,Name)==0) return TRUE;
-
- if ((errno!=EEXIST)||
- (lstat(Name,&Stat)<0)||
- !S_ISLNK(Stat.st_mode)) return FALSE;
-
- return ((unlink(Name)==0)&&(symlink(Link,Name)==0));
-}
-
-int WriteFile(gzFile In,char *Name,mode_t Mode,long Length)
-
-{
- int Out;
- struct stat Stat;
- static void *Buffer=NULL;
- static long BufferSize=0;
-
- if (lstat(Name,&Stat)==0)
- if (!S_ISREG(Stat.st_mode)||(unlink(Name)<0)) return FALSE;
-
- if (Buffer==NULL)
- {
- BufferSize=sysconf(_SC_PAGESIZE)*256;
- if ((Buffer=malloc(BufferSize))==NULL) return FALSE;
- }
-
- if ((Out=open(Name,O_WRONLY|O_CREAT,Mode))<=0) return FALSE;
-
- while (Length>0)
- {
- long Chunk;
-
- Chunk=(Length>BufferSize)?BufferSize:Length;
- if (!GZREAD(In,Buffer,Chunk)) break;
- if (write(Out,Buffer,Chunk)!=Chunk) break;
- Length-=Chunk;
- }
-
- if ((close(Out)==0)&&(Length==0)) return SkipAndAlign(In,0);
-
- (void)unlink(Name);
- return FALSE;
-}
-
-void CheckSymLinks(PListEntry **Links,PListEntry **Files,PListEntry **Dirs)
-
-{
- PListEntry *Link;
- struct stat Stat;
-
- while ((Link=*Links)!=NULL)
- {
- PListEntry *Ptr;
- char *Basename;
-
- if (Link->pe_Left!=NULL)
- CheckSymLinks(&Link->pe_Left,Files,Dirs);
-
- if ((stat(Link->pe_Name,&Stat)<0)||!S_ISREG(Stat.st_mode))
- {
- Links=&Link->pe_Right;
- continue;
- }
-
- (void)InsertPListEntry(Files,Link->pe_Name);
- if ((Basename=strrchr(Link->pe_Name,'/'))!=NULL)
- {
- *Basename='\0';
- if ((Ptr=FindPListEntry(*Dirs,Link->pe_Name))!=NULL)
- Ptr->pe_DirEmpty=FALSE;
- }
-
- if (Link->pe_Right==NULL)
- {
- *Links=Link->pe_Left;
- free(Link);
- break;
- }
-
- *Links=Link->pe_Right;
- Ptr=Link->pe_Left;
- free(Link);
-
- if (Ptr==NULL) continue;
-
- Link=*Links;
- while (Link->pe_Left!=NULL) Link=Link->pe_Left;
- Link->pe_Left=Ptr;
- }
-}
-
-int main(int argc,char **argv)
-
-{
- FILE *PList;
- char **Ignore,*Prefix;
- int Opt,Index,FD,IsSource;
- PListEntry *Files,*Links,*Dirs;
- Header Hdr;
- gzFile In;
-
- PList=NULL;
- Ignore=NULL;
- Prefix=NULL;
- while ((Opt=getopt(argc,argv,"d:f:i:p:"))!=-1)
- switch (Opt)
- {
- case 'f':
- if (PList!=NULL) (void)fclose(PList);
- if ((PList=fopen(optarg,"a"))==NULL)
- {
- perror(optarg);
- return EXIT_FAILURE;
- }
- break;
- case 'i':
- if ((Ignore=ArrayAdd(Ignore,optarg))==NULL)
- {
- perror(__progname);
- exit(EXIT_FAILURE);
- }
- break;
- case 'd':
- if (chdir(optarg))
- {
- perror(optarg);
- return EXIT_FAILURE;
- }
- break;
- case 'p':
- Prefix=optarg;
- break;
- default:
- Usage();
- }
-
- if (Prefix!=NULL)
- {
- int Length;
-
- Length=strlen(Prefix);
- if (Length==0) Prefix=NULL;
- else
- if ((Prefix[Length-1]!='/')&&((Prefix=StrCat(Prefix,"/"))==NULL))
- {
- perror(__progname);
- exit(EXIT_FAILURE);
- }
- }
-
- argc-=optind;
- argv+=optind;
- if (argc==0) Usage();
-
- Files=NULL;
- Links=NULL;
- Dirs=NULL;
- for (Index=0; Index<argc; Index++)
- {
- if ((FD=open(argv[Index],O_RDONLY,0))<0)
- {
- perror(argv[Index]);
- return EXIT_FAILURE;
- }
-
- switch (rpmReadPackageHeader(FD,&Hdr,&IsSource,NULL,NULL))
- {
- case 0:
- break;
- case 1:
- (void)fprintf(stderr,"%s: file is not an RPM package.\n",argv[Index]);
- return EXIT_FAILURE;
- default:
- (void)fprintf(stderr,"%s: error reading header.\n",argv[Index]);
- return EXIT_FAILURE;
- }
-
- if ((In=gzdopen(FD,"r"))==NULL)
- {
- (void)fprintf(stderr,"%s: cannot read cpio data.\n",argv[Index]);
- return EXIT_FAILURE;
- }
-
- for (;;)
- {
- long Fields[CPIO_NUM_HEADERS];
- char *Name;
- mode_t Mode;
- long Length;
-
- if (!GetCPIOHeader(In,Fields,&Name))
- {
- (void)fprintf(stderr,"%s: error in cpio header.\n",argv[Index]);
- return EXIT_FAILURE;
- }
- if (strcmp(Name,CPIO_END_MARKER)==0)
- {
- free(Name);
- break;
- }
- if (*Name=='\0') Fields[CPIO_HDR_MODE]=0;
-
- if (Ignore!=NULL)
- {
- char **Ptr;
-
- Ptr=Ignore;
- while (*Ptr!=NULL)
- {
- int Length;
-
- Length=strlen(*Ptr);
- if ((strncmp(*Ptr,Name,Length)==0)&&
- ((Name[Length]=='\0')||(Name[Length]=='/'))) break;
- else Ptr++;
- }
- if (*Ptr!=NULL) Fields[CPIO_HDR_MODE]=0;
- }
-
- if (Prefix!=NULL)
- {
- char *Fullname;
-
- if ((Fullname=StrCat(Prefix,Name))==NULL)
- {
- perror(__progname);
- exit(EXIT_FAILURE);
- }
- free(Name);
- Name=Fullname;
- }
-
- Mode=ConvertMode(Fields[CPIO_HDR_MODE]);
- Length=Fields[CPIO_HDR_FILESIZE];
- switch (Fields[CPIO_HDR_MODE]&CP_IFMT)
- {
- case C_ISDIR:
- {
- PListEntry *Dir;
- int OldDir;
-
- if (Length!=0)
- {
- (void)fprintf(stderr,"%s: error in cpio file.\n",argv[Index]);
- return EXIT_FAILURE;
- }
- if (!MakeTargetDir(Name,&Dirs,TRUE))
- {
- (void)fprintf(stderr,
- "%s: can't create parent directories for \"%s\".\n",
- argv[Index],
- Name);
- return EXIT_FAILURE;
- }
-
- if (!MakeDir(Name,Mode,&OldDir))
- {
- (void)fprintf(stderr,
- "%s: can't create directory \"%s\".\n",
- argv[Index],
- Name);
- return EXIT_FAILURE;
- }
-
- if (!OldDir)
- {
- Dir=InsertPListEntry(&Dirs,Name);
- Dir->pe_DirEmpty=TRUE;
- Dir->pe_DirMode=Mode;
- }
- break;
- }
- case C_ISLNK:
- {
- char *Link;
- struct stat Stat;
-
- if ((Link=GetData(In,Length))==NULL)
- {
- (void)fprintf(stderr,"%s: error in cpio file.\n",argv[Index]);
- return EXIT_FAILURE;
- }
-
- if (!MakeTargetDir(Name,&Dirs,FALSE))
- {
- (void)fprintf(stderr,
- "%s: can't create parent directories for \"%s\".\n",
- argv[Index],
- Name);
- return EXIT_FAILURE;
- }
-
- if (*Link=='/')
- {
- char *Ptr;
-
- (void)strcpy(Link,Link+1);
- Ptr=Name;
- if (Prefix!=NULL) Ptr+=strlen(Prefix);
- while ((Ptr=strchr(Ptr,'/'))!=NULL)
- {
- char *NewLink;
-
- if ((NewLink=StrCat("../",Link))==NULL)
- {
- perror(__progname);
- return EXIT_FAILURE;
- }
- free(Link);
- Link=NewLink;
-
- Ptr++;
- }
- }
- if (!MakeSymLink(Link,Name))
- {
- (void)fprintf(stderr,
- "%s: can't create symbolic link \"%s\".\n",
- argv[Index],
- Name);
- return EXIT_FAILURE;
- }
-
- InsertPListEntry(&Links,Name)->pe_Link=Link;
- break;
- }
- case C_ISREG:
- if (!MakeTargetDir(Name,&Dirs,TRUE))
- {
- (void)fprintf(stderr,
- "%s: can't create parent directories for \"%s\".\n",
- argv[Index],
- Name);
- return EXIT_FAILURE;
- }
- if (!WriteFile(In,Name,Mode,Length))
- {
- (void)fprintf(stderr,
- "%s: can't write file \"%s\".\n",
- argv[Index],
- Name);
- return EXIT_FAILURE;
- }
- (void)InsertPListEntry(&Files,Name);
- break;
- default:
- if ((Length>0)&&(gzseek(In,(Length+3)&(~3),SEEK_CUR)<0)) break;
- }
-
- free(Name);
- }
-
- (void)gzclose(In);
- (void)close(FD);
- }
-
- if (PList!=NULL)
- {
- ProcessPList(Files,PListEntryFile,PLIST_ORDER_FORWARD,PList);
- ProcessPList(Dirs,PListEntryMakeDir,PLIST_ORDER_FORWARD,PList);
- ProcessPList(Links,PListEntryLink,PLIST_ORDER_FORWARD,PList);
- ProcessPList(Dirs,PListEntryRemoveDir,PLIST_ORDER_BACKWARD,PList);
- (void)fclose(PList);
- }
-
- return EXIT_SUCCESS;
-}
-
diff --git a/emulators/suse_base/pkg/PLIST b/emulators/suse_base/pkg/PLIST
index f3de604900c..c0a5bbbbe1c 100644
--- a/emulators/suse_base/pkg/PLIST
+++ b/emulators/suse_base/pkg/PLIST
@@ -1,6 +1,5 @@
-@comment $NetBSD: PLIST,v 1.1.1.1 1999/05/17 00:14:50 tron Exp $
+@comment $NetBSD: PLIST,v 1.2 2001/01/25 09:16:25 tron Exp $
sbin/linux-mkpwd
-sbin/rpm2pkg
@unexec rm -f %D/@@EMULSUBDIR@@/etc/ld.so.cache
@@EMULSUBDIR@@/etc/ld.so.conf
@unexec cd %D/@@EMULSUBDIR@@/etc && rm -f group gshadow passwd shadow