xserver-multidpi/hw/xfree86/os-support/shared/libc_wrapper.c

2159 lines
38 KiB
C

/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/shared/libc_wrapper.c,v 1.102 2003/11/19 03:52:58 dawes Exp $ */
/*
* Copyright 1997-2003 by The XFree86 Project, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the names of Orest Zborowski and David Wexelblat
* not be used in advertising or publicity pertaining to distribution of
* the software without specific, written prior permission. Orest Zborowski
* and David Wexelblat make no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* THE XFREE86 PROJECT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL OREST ZBOROWSKI OR DAVID WEXELBLAT BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#if defined(linux) && !defined(__GLIBC__)
#undef __STRICT_ANSI__
#endif
#include <X11/X.h>
#ifdef __UNIXOS2__
#define I_NEED_OS2_H
#endif
#include <X11/Xmd.h>
#include <X11/Xos.h>
#include <sys/types.h>
#include <sys/stat.h>
#if defined(__bsdi__)
#undef _POSIX_SOURCE
#undef _ANSI_SOURCE
#endif
#include <sys/time.h>
#include <math.h>
#ifdef sun
#include <ieeefp.h>
#endif
#include <stdarg.h>
#include <fcntl.h>
#include <X11/Xfuncproto.h>
#include "os.h"
#include <ctype.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <sys/ioctl.h>
#ifdef __UNIXOS2__
#define NO_MMAP
#include <sys/param.h>
#endif
#ifdef HAS_SVR3_MMAPDRV
#define NO_MMAP
#ifdef SELF_CONTAINED_WRAPPER
#include <sys/at_ansi.h>
#include <sys/kd.h>
#include <sys/sysmacros.h>
#if !defined(_NEED_SYSI86)
# include <sys/immu.h>
# include <sys/region.h>
#endif
#include <sys/mmap.h>
struct kd_memloc MapDSC;
int mmapFd = -2;
#else
extern struct kd_memloc MapDSC;
extern int mmapFd;
#endif
#endif
#ifndef NO_MMAP
#include <sys/mman.h>
#ifndef MAP_FAILED
#define MAP_FAILED ((caddr_t)-1)
#endif
#endif
#if !defined(ISC)
#include <stdlib.h>
#endif
#define NEED_XF86_TYPES 1
#define NEED_XF86_PROTOTYPES 1
#define DONT_DEFINE_WRAPPERS
#include "xf86_ansic.h"
#ifndef SELF_CONTAINED_WRAPPER
#include "xf86.h"
#include "xf86Priv.h"
#define NO_OSLIB_PROTOTYPES
#define XF86_OS_PRIVS
#define HAVE_WRAPPER_DECLS
#include "xf86_OSlib.h"
#else
void xf86WrapperInit(void);
#endif
#ifndef X_NOT_POSIX
#include <dirent.h>
#else
#ifdef SYSV
#include <dirent.h>
#else
#ifdef USG
#include <dirent.h>
#else
#include <sys/dir.h>
#ifndef dirent
#define dirent direct
#endif
#endif
#endif
#endif
typedef struct dirent DIRENTRY;
#ifdef __UNIXOS2__
#define _POSIX_SOURCE
#endif
#ifdef ISC202
#include <sys/types.h>
#define WIFEXITED(a) ((a & 0x00ff) == 0) /* LSB will be 0 */
#define WEXITSTATUS(a) ((a & 0xff00) >> 8)
#define WIFSIGNALED(a) ((a & 0xff00) == 0) /* MSB will be 0 */
#define WTERMSIG(a) (a & 0x00ff)
#else
#if defined(ISC) && !defined(_POSIX_SOURCE)
#define _POSIX_SOURCE
#include <sys/types.h>
#include <sys/wait.h>
#undef _POSIX_SOURCE
#else
#if (defined(ISC) && defined(_POSIX_SOURCE)) || defined(Lynx) || (defined (__alpha__) && defined(linux))
#include <sys/types.h>
#endif
#include <sys/wait.h>
#endif
#endif
#ifdef Lynx
#if !defined(S_IFIFO) && defined(S_IFFIFO)
#define S_IFIFO S_IFFIFO
#endif
#endif
/* For xf86getpagesize() */
#if defined(linux)
#define HAS_SC_PAGESIZE
#define HAS_GETPAGESIZE
#elif defined(CSRG_BASED)
#define HAS_GETPAGESIZE
#elif defined(DGUX)
#define HAS_GETPAGESIZE
#elif defined(sun) && !defined(SVR4)
#define HAS_GETPAGESIZE
#endif
#ifdef XNO_SYSCONF
#undef _SC_PAGESIZE
#endif
#ifdef HAVE_SYSV_IPC
#include <sys/ipc.h>
#include <sys/shm.h>
#endif
#include <setjmp.h>
#if defined(setjmp) && defined(__GNU_LIBRARY__) && \
(!defined(__GLIBC__) || (__GLIBC__ < 2) || \
((__GLIBC__ == 2) && (__GLIBC_MINOR__ < 3)))
#define HAS_GLIBC_SIGSETJMP 1
#endif
#if 0
#define SETBUF_RETURNS_INT
#endif
_X_EXPORT double xf86HUGE_VAL;
#ifndef SELF_CONTAINED_WRAPPERS
extern void xf86DisableIO(void);
#endif
/*
* This file contains the XFree86 wrappers for libc functions that can be
* called by loadable modules
*/
_X_EXPORT double
xf86hypot(double x, double y)
{
return(hypot(x,y));
}
_X_EXPORT void
xf86qsort(void *base, xf86size_t nmemb, xf86size_t size,
int (*comp)(const void *, const void *))
{
qsort(base, nmemb, size, comp);
}
/* string functions */
_X_EXPORT char*
xf86strcat(char* dest, const char* src)
{
return(strcat(dest,src));
}
_X_EXPORT char*
xf86strchr(const char* s, int c)
{
return strchr(s,c);
}
_X_EXPORT int
xf86strcmp(const char* s1, const char* s2)
{
return strcmp(s1,s2);
}
/* Just like the BSD version. It assumes that tolower() is ANSI-compliant */
_X_EXPORT int
xf86strcasecmp(const char* s1, const char* s2)
{
const unsigned char *us1 = (const unsigned char *)s1;
const unsigned char *us2 = (const unsigned char *)s2;
while (tolower(*us1) == tolower(*us2++))
if (*us1++ == '\0')
return 0;
return tolower(*us1) - tolower(*--us2);
}
_X_EXPORT char*
xf86strcpy(char* dest, const char* src)
{
return strcpy(dest,src);
}
_X_EXPORT xf86size_t
xf86strcspn(const char* s1, const char* s2)
{
return (xf86size_t)strcspn(s1,s2);
}
_X_EXPORT xf86size_t
xf86strlen(const char* s)
{
return (xf86size_t)strlen(s);
}
_X_EXPORT xf86size_t
xf86strlcat(char *dest, const char *src, xf86size_t size)
{
return(strlcat(dest, src, size));
}
_X_EXPORT xf86size_t
xf86strlcpy(char *dest, const char *src, xf86size_t size)
{
return strlcpy(dest, src, size);
}
_X_EXPORT char*
xf86strncat(char* dest, const char* src, xf86size_t n)
{
return strncat(dest,src,(size_t)n);
}
_X_EXPORT int
xf86strncmp(const char* s1, const char* s2, xf86size_t n)
{
return strncmp(s1,s2,(size_t)n);
}
/* Just like the BSD version. It assumes that tolower() is ANSI-compliant */
_X_EXPORT int
xf86strncasecmp(const char* s1, const char* s2, xf86size_t n)
{
if (n != 0) {
const unsigned char *us1 = (const unsigned char *)s1;
const unsigned char *us2 = (const unsigned char *)s2;
do {
if (tolower(*us1) != tolower(*us2++))
return tolower(*us1) - tolower(*--us2);
if (*us1++ == '\0')
break;
} while (--n != 0);
}
return 0;
}
_X_EXPORT char*
xf86strncpy(char* dest, const char* src, xf86size_t n)
{
return strncpy(dest,src,(size_t)n);
}
_X_EXPORT char*
xf86strpbrk(const char* s1, const char* s2)
{
return strpbrk(s1,s2);
}
_X_EXPORT char*
xf86strrchr(const char* s, int c)
{
return strrchr(s,c);
}
_X_EXPORT xf86size_t
xf86strspn(const char* s1, const char* s2)
{
return strspn(s1,s2);
}
_X_EXPORT char*
xf86strstr(const char* s1, const char* s2)
{
return strstr(s1,s2);
}
_X_EXPORT char*
xf86strtok(char* s1, const char* s2)
{
return strtok(s1,s2);
}
_X_EXPORT char*
xf86strdup(const char* s)
{
return xstrdup(s);
}
_X_EXPORT int
xf86sprintf(char *s, const char *format, ...)
{
int ret;
va_list args;
va_start(args, format);
ret = vsprintf(s, format, args);
va_end(args);
return ret;
}
_X_EXPORT int
xf86snprintf(char *s, xf86size_t len, const char *format, ...)
{
int ret;
va_list args;
va_start(args, format);
ret = vsnprintf(s, (size_t)len, format, args);
va_end(args);
return ret;
}
_X_EXPORT void
xf86bzero(void* s, unsigned int n)
{
memset(s, 0, n);
}
#ifdef HAVE_VSSCANF
_X_EXPORT int
xf86sscanf(char *s, const char *format, ...)
#else
_X_EXPORT int
xf86sscanf(char *s, const char *format, char *a0, char *a1, char *a2,
char *a3, char *a4, char *a5, char *a6, char *a7, char *a8,
char *a9) /* limit of ten args */
#endif
{
#ifdef HAVE_VSSCANF
int ret;
va_list args;
va_start(args, format);
ret = vsscanf(s,format,args);
va_end(args);
return ret;
#else
return sscanf(s, format, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
#endif
}
/* Basic I/O */
_X_EXPORT int xf86errno;
/* XXX This is not complete */
static int
xfToOsOpenFlags(int xfflags)
{
int flags = 0;
/* XXX This assumes O_RDONLY is 0 */
if (xfflags & XF86_O_WRONLY)
flags |= O_WRONLY;
if (xfflags & XF86_O_RDWR)
flags |= O_RDWR;
if (xfflags & XF86_O_CREAT)
flags |= O_CREAT;
return flags;
}
_X_EXPORT int
xf86open(const char *path, int flags, ...)
{
int fd;
va_list ap;
va_start(ap, flags);
flags = xfToOsOpenFlags(flags);
if (flags & O_CREAT) {
/* can't request a mode_t directly on systems where mode_t
is an unsigned short */
mode_t mode = (mode_t)va_arg(ap, unsigned int);
fd = open(path, flags, mode);
} else {
fd = open(path, flags);
}
va_end(ap);
xf86errno = xf86GetErrno();
return fd;
}
_X_EXPORT int
xf86close(int fd)
{
int status = close(fd);
xf86errno = xf86GetErrno();
return status;
}
_X_EXPORT long
xf86lseek(int fd, long offset, int whence)
{
switch (whence) {
case XF86_SEEK_SET:
whence = SEEK_SET;
break;
case XF86_SEEK_CUR:
whence = SEEK_CUR;
break;
case XF86_SEEK_END:
whence = SEEK_END;
break;
}
return (long)lseek(fd, (off_t)offset, whence);
}
_X_EXPORT int
xf86ioctl(int fd, unsigned long request, pointer argp)
{
int status = ioctl(fd, request, argp);
xf86errno = xf86GetErrno();
return status;
}
_X_EXPORT xf86ssize_t
xf86read(int fd, void *buf, xf86size_t nbytes)
{
xf86ssize_t n = read(fd, buf, (size_t)nbytes);
xf86errno = xf86GetErrno();
return n;
}
_X_EXPORT xf86ssize_t
xf86write(int fd, const void *buf, xf86size_t nbytes)
{
xf86ssize_t n = write(fd, buf, (size_t)nbytes);
xf86errno = xf86GetErrno();
return n;
}
_X_EXPORT void*
xf86mmap(void *start, xf86size_t length, int prot,
int flags, int fd, xf86size_t /* off_t */ offset)
{
#ifndef NO_MMAP
int p=0, f=0;
void *rc;
if (flags & XF86_MAP_FIXED) f |= MAP_FIXED;
if (flags & XF86_MAP_SHARED) f |= MAP_SHARED;
if (flags & XF86_MAP_PRIVATE) f |= MAP_PRIVATE;
#if defined(__amd64__) && defined(linux)
if (flags & XF86_MAP_32BIT) f |= MAP_32BIT;
#endif
if (prot & XF86_PROT_EXEC) p |= PROT_EXEC;
if (prot & XF86_PROT_READ) p |= PROT_READ;
if (prot & XF86_PROT_WRITE) p |= PROT_WRITE;
if (prot & XF86_PROT_NONE) p |= PROT_NONE;
rc = mmap(start,(size_t)length,p,f,fd,(off_t)offset);
xf86errno = xf86GetErrno();
if (rc == MAP_FAILED)
return XF86_MAP_FAILED;
else
return rc;
#else
#ifdef HAS_SVR3_MMAPDRV
void *rc;
#ifdef SELF_CONTAINED_WRAPPER
if(mmapFd < 0) {
if ((mmapFd = open("/dev/mmap", O_RDWR)) == -1) {
ErrorF("Warning: failed to open /dev/mmap \n");
xf86errno = xf86_ENOSYS;
return XF86_MAP_FAILED;
}
}
#endif
MapDSC.vaddr = (char *)start;
MapDSC.physaddr = (char *)offset;
MapDSC.length = length;
MapDSC.ioflg = 1;
rc = (pointer)ioctl(mmapFd, MAP, &MapDSC);
xf86errno = xf86GetErrno();
if (rc == NULL)
return XF86_MAP_FAILED;
else
return rc;
#else
ErrorF("Warning: mmap() is not supported on this platform\n");
xf86errno = xf86_ENOSYS;
return XF86_MAP_FAILED;
#endif
#endif
}
_X_EXPORT int
xf86munmap(void *start, xf86size_t length)
{
#ifndef NO_MMAP
int rc = munmap(start,(size_t)length);
xf86errno = xf86GetErrno();
return rc;
#else
#ifdef HAS_SVR3_MMAPDRV
int rc = ioctl(mmapFd, UNMAPRM , start);
xf86errno = xf86GetErrno();
return rc;
#else
ErrorF("Warning: munmap() is not supported on this platform\n");
xf86errno = xf86_ENOSYS;
return -1;
#endif
#endif
}
_X_EXPORT int
xf86stat(const char *file_name, struct xf86stat *xfst)
{
int rc;
struct stat st;
rc = stat(file_name, &st);
xf86errno = xf86GetErrno();
xfst->st_rdev = st.st_rdev; /* Not much is currently supported */
return rc;
}
_X_EXPORT int
xf86fstat(int fd, struct xf86stat *xfst)
{
int rc;
struct stat st;
rc = fstat(fd, &st);
xf86errno = xf86GetErrno();
xfst->st_rdev = st.st_rdev; /* Not much is currently supported */
return rc;
}
static int
xfToOsAccessMode(int xfmode)
{
switch(xfmode) {
case XF86_R_OK: return R_OK;
case XF86_W_OK: return W_OK;
case XF86_X_OK: return X_OK;
case XF86_F_OK: return F_OK;
}
return 0;
}
_X_EXPORT int
xf86access(const char *pathname, int mode)
{
int rc;
mode = xfToOsAccessMode(mode);
rc = access(pathname, mode);
xf86errno = xf86GetErrno();
return rc;
}
/* limited stdio support */
#define XF86FILE_magic 0x58464856 /* "XFHV" */
typedef struct _xf86_file_ {
INT32 fileno;
INT32 magic;
FILE* filehnd;
char* fname;
} XF86FILE_priv;
XF86FILE_priv stdhnd[3] = {
{ 0, XF86FILE_magic, NULL, "$stdinp$" },
{ 0, XF86FILE_magic, NULL, "$stdout$" },
{ 0, XF86FILE_magic, NULL, "$stderr$" }
};
_X_EXPORT XF86FILE* xf86stdin = (XF86FILE*)&stdhnd[0];
_X_EXPORT XF86FILE* xf86stdout = (XF86FILE*)&stdhnd[1];
_X_EXPORT XF86FILE* xf86stderr = (XF86FILE*)&stdhnd[2];
void
xf86WrapperInit()
{
if (stdhnd[0].filehnd == NULL)
stdhnd[0].filehnd = stdin;
if (stdhnd[1].filehnd == NULL)
stdhnd[1].filehnd = stdout;
if (stdhnd[2].filehnd == NULL)
stdhnd[2].filehnd = stderr;
xf86HUGE_VAL = HUGE_VAL;
}
_X_EXPORT XF86FILE*
xf86fopen(const char* fn, const char* mode)
{
XF86FILE_priv* fp;
FILE *f = fopen(fn,mode);
xf86errno = xf86GetErrno();
if (!f) return 0;
fp = xalloc(sizeof(XF86FILE_priv));
fp->magic = XF86FILE_magic;
fp->filehnd = f;
fp->fileno = fileno(f);
fp->fname = xf86strdup(fn);
#ifdef DEBUG
ErrorF("xf86fopen(%s,%s) yields FILE %p XF86FILE %p\n",
fn,mode,f,fp);
#endif
return (XF86FILE*)fp;
}
static void _xf86checkhndl(XF86FILE_priv* f,const char *func)
{
if (!f || f->magic != XF86FILE_magic ||
!f->filehnd || !f->fname) {
FatalError("libc_wrapper error: passed invalid FILE handle to %s",
func);
exit(42);
}
}
_X_EXPORT int
xf86fclose(XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
int ret;
_xf86checkhndl(fp,"xf86fclose");
/* somewhat bad check */
if (fp->fileno < 3 && fp->fname[0]=='$') {
/* assume this is stdin/out/err, don't dispose */
ret = fclose(fp->filehnd);
} else {
ret = fclose(fp->filehnd);
fp->magic = 0; /* invalidate */
xfree(fp->fname);
xfree(fp);
}
return ret ? -1 : 0;
}
_X_EXPORT int
xf86printf(const char *format, ...)
{
int ret;
va_list args;
va_start(args, format);
ret = printf(format,args);
va_end(args);
return ret;
}
_X_EXPORT int
xf86fprintf(XF86FILE* f, const char *format, ...)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
int ret;
va_list args;
va_start(args, format);
#ifdef DEBUG
ErrorF("xf86fprintf for XF86FILE %p\n", fp);
#endif
_xf86checkhndl(fp,"xf86fprintf");
ret = vfprintf(fp->filehnd,format,args);
va_end(args);
return ret;
}
_X_EXPORT int
xf86vfprintf(XF86FILE* f, const char *format, va_list ap)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
#ifdef DEBUG
ErrorF("xf86vfprintf for XF86FILE %p\n", fp);
#endif
_xf86checkhndl(fp,"xf86vfprintf");
return vfprintf(fp->filehnd,format,ap);
}
_X_EXPORT int
xf86vsprintf(char *s, const char *format, va_list ap)
{
return vsprintf(s, format, ap);
}
_X_EXPORT int
xf86vsnprintf(char *s, xf86size_t len, const char *format, va_list ap)
{
return vsnprintf(s, (size_t)len, format, ap);
}
#ifdef HAVE_VFSCANF
_X_EXPORT int
xf86fscanf(XF86FILE* f, const char *format, ...)
#else
_X_EXPORT int
xf86fscanf(XF86FILE* f, const char *format, char *a0, char *a1, char *a2,
char *a3, char *a4, char *a5, char *a6, char *a7, char *a8,
char *a9) /* limit of ten args */
#endif
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
#ifdef HAVE_VFSCANF
int ret;
va_list args;
va_start(args, format);
_xf86checkhndl(fp,"xf86fscanf");
ret = vfscanf(fp->filehnd,format,args);
va_end(args);
return ret;
#else
_xf86checkhndl(fp,"xf86fscanf");
return fscanf(fp->filehnd, format, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
#endif
}
_X_EXPORT char *
xf86fgets(char *buf, INT32 n, XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86fgets");
return fgets(buf,(int)n,fp->filehnd);
}
_X_EXPORT int
xf86fputs(const char *buf, XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86fputs");
return fputs(buf,fp->filehnd);
}
_X_EXPORT int
xf86getc(XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86getc");
return getc(fp->filehnd);
}
_X_EXPORT int
xf86fgetc(XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86fgetc");
return fgetc(fp->filehnd);
}
_X_EXPORT int
xf86fputc(int c,XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86fputc");
return fputc(c,fp->filehnd);
}
_X_EXPORT int
xf86fflush(XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86fflush");
return fflush(fp->filehnd);
}
_X_EXPORT xf86size_t
xf86fread(void* buf, xf86size_t sz, xf86size_t cnt, XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
#ifdef DEBUG
ErrorF("xf86fread for XF86FILE %p\n", fp);
#endif
_xf86checkhndl(fp,"xf86fread");
return fread(buf,(size_t)sz,(size_t)cnt,fp->filehnd);
}
_X_EXPORT xf86size_t
xf86fwrite(const void* buf, xf86size_t sz, xf86size_t cnt, XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86fwrite");
return fwrite(buf,(size_t)sz,(size_t)cnt,fp->filehnd);
}
_X_EXPORT int
xf86fseek(XF86FILE* f, long offset, int whence)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86fseek");
switch (whence) {
case XF86_SEEK_SET:
whence = SEEK_SET;
break;
case XF86_SEEK_CUR:
whence = SEEK_CUR;
break;
case XF86_SEEK_END:
whence = SEEK_END;
break;
}
return fseek(fp->filehnd,offset,whence);
}
_X_EXPORT long
xf86ftell(XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86ftell");
return ftell(fp->filehnd);
}
#define mapnum(e) case (xf86_##e): err = e; break;
_X_EXPORT char*
xf86strerror(int n)
{
int err;
switch (n)
{
case 0: err = 0; break;
mapnum (EACCES);
mapnum (EAGAIN);
mapnum (EBADF);
mapnum (EEXIST);
mapnum (EFAULT);
mapnum (EINTR);
mapnum (EINVAL);
mapnum (EISDIR);
mapnum (ELOOP); /* not POSIX 1 */
mapnum (EMFILE);
mapnum (ENAMETOOLONG);
mapnum (ENFILE);
mapnum (ENOENT);
mapnum (ENOMEM);
mapnum (ENOSPC);
mapnum (ENOTDIR);
mapnum (EPIPE);
mapnum (EROFS);
#ifndef __UNIXOS2__
mapnum (ETXTBSY); /* not POSIX 1 */
#endif
mapnum (ENOTTY);
#ifdef ENOSYS
mapnum (ENOSYS);
#endif
mapnum (EBUSY);
mapnum (ENODEV);
mapnum (EIO);
#ifdef ESRCH
mapnum (ESRCH);
#endif
#ifdef ENXIO
mapnum (ENXIO);
#endif
#ifdef E2BIG
mapnum (E2BIG);
#endif
#ifdef ENOEXEC
mapnum (ENOEXEC);
#endif
#ifdef ECHILD
mapnum (ECHILD);
#endif
#ifdef ENOTBLK
mapnum (ENOTBLK);
#endif
#ifdef EXDEV
mapnum (EXDEV);
#endif
#ifdef EFBIG
mapnum (EFBIG);
#endif
#ifdef ESPIPE
mapnum (ESPIPE);
#endif
#ifdef EMLINK
mapnum (EMLINK);
#endif
#ifdef EDOM
mapnum (EDOM);
#endif
#ifdef ERANGE
mapnum (ERANGE);
#endif
default:
err = 999;
}
return strerror(err);
}
#undef mapnum
/* required for portable fgetpos/fsetpos,
* use as
* XF86fpos_t* pos = xalloc(xf86fpossize());
*/
_X_EXPORT long
xf86fpossize()
{
return sizeof(fpos_t);
}
_X_EXPORT int
xf86fgetpos(XF86FILE* f,XF86fpos_t* pos)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
fpos_t *ppos = (fpos_t*)pos;
_xf86checkhndl(fp,"xf86fgetpos");
#ifndef ISC
return fgetpos(fp->filehnd,ppos);
#else
*ppos = ftell(fp->filehnd);
if (*ppos < 0L)
return(-1);
return(0);
#endif
}
_X_EXPORT int
xf86fsetpos(XF86FILE* f,const XF86fpos_t* pos)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
fpos_t *ppos = (fpos_t*)pos;
/* XXX need to handle xf86errno here */
_xf86checkhndl(fp,"xf86fsetpos");
#ifndef ISC
return fsetpos(fp->filehnd,ppos);
#else
if (ppos == NULL)
{
errno = EINVAL;
return EOF;
}
return fseek(fp->filehnd, *ppos, SEEK_SET);
#endif
}
_X_EXPORT void
xf86perror(const char *s)
{
perror(s);
}
_X_EXPORT int
xf86remove(const char *s)
{
#ifdef _POSIX_SOURCE
return remove(s);
#else
return unlink(s);
#endif
}
_X_EXPORT int
xf86rename(const char *old, const char *new)
{
#ifdef _POSIX_SOURCE
return rename(old,new);
#else
int ret = link(old,new);
if (!ret) {
ret = unlink(old);
if (ret) unlink(new);
} else
ret = unlink(new);
return ret;
#endif
}
_X_EXPORT void
xf86rewind(XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86fsetpos");
rewind(fp->filehnd);
}
_X_EXPORT void
xf86clearerr(XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86clearerr");
clearerr(fp->filehnd);
}
_X_EXPORT int
xf86feof(XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86feof");
return feof(fp->filehnd);
}
_X_EXPORT int
xf86ferror(XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86ferror");
return ferror(fp->filehnd);
}
_X_EXPORT XF86FILE*
xf86freopen(const char* fname,const char* mode,XF86FILE* fold)
{
XF86FILE_priv* fp = (XF86FILE_priv*)fold;
FILE *fnew;
_xf86checkhndl(fp,"xf86freopen");
fnew = freopen(fname,mode,fp->filehnd);
xf86errno = xf86GetErrno();
if (!fnew) {
xf86fclose(fold); /* discard old XF86FILE structure */
return 0;
}
/* recycle the old XF86FILE structure */
fp->magic = XF86FILE_magic;
fp->filehnd = fnew;
fp->fileno = fileno(fnew);
fp->fname = xf86strdup(fname);
#ifdef DEBUG
ErrorF("xf86freopen(%s,%s,%p) yields FILE %p XF86FILE %p\n",
fname,mode,fold,fnew,fp);
#endif
return (XF86FILE*)fp;
}
_X_EXPORT int
xf86setbuf(XF86FILE* f, char *buf)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86fsetbuf");
#ifdef SETBUF_RETURNS_INT
return setbuf(fp->filehnd, buf);
#else
setbuf(fp->filehnd, buf);
return 0;
#endif
}
_X_EXPORT int
xf86setvbuf(XF86FILE* f, char *buf, int mode, xf86size_t size)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
int vbufmode;
_xf86checkhndl(fp,"xf86fsetvbuf");
switch (mode) {
case XF86_IONBF:
vbufmode = _IONBF;
break;
case XF86_IOLBF:
vbufmode = _IOFBF;
break;
case XF86_IOFBF:
vbufmode = _IOLBF;
break;
default:
FatalError("libc_wrapper error: mode in setvbuf incorrect");
exit(42);
}
return setvbuf(fp->filehnd,buf,vbufmode,(size_t)size);
}
_X_EXPORT XF86FILE*
xf86tmpfile(void)
{
#ifdef NEED_TMPFILE
return xf86fopen(tmpnam((char*)0),"w+");
#else
XF86FILE_priv* fp;
FILE *f = tmpfile();
xf86errno = xf86GetErrno();
if (!f) return 0;
fp = xalloc(sizeof(XF86FILE_priv));
fp->magic = XF86FILE_magic;
fp->filehnd = f;
fp->fileno = fileno(f);
fp->fname = xf86strdup("*tmpfile*"); /* so that it can be xfree()'d */
#ifdef DEBUG
ErrorF("xf86tmpfile() yields FILE %p XF86FILE %p\n",f,fp);
#endif
return (XF86FILE*)fp;
}
#endif /* HAS_TMPFILE */
_X_EXPORT int
xf86ungetc(int c,XF86FILE* f)
{
XF86FILE_priv* fp = (XF86FILE_priv*)f;
_xf86checkhndl(fp,"xf86ungetc");
return ungetc(c,fp->filehnd);
}
/* Misc functions. Some are ANSI C, some are not. */
_X_EXPORT void
xf86usleep(usec)
unsigned long usec;
{
#if (defined(SYSV) || defined(SVR4)) && !defined(sun)
syscall(3112, (usec) / 1000 + 1);
#else
usleep(usec);
#endif
}
_X_EXPORT void
xf86getsecs(long * secs, long * usecs)
{
struct timeval tv;
X_GETTIMEOFDAY(&tv);
if (secs)
*secs = tv.tv_sec;
if (usecs)
*usecs= tv.tv_usec;
return;
}
_X_EXPORT int
xf86ffs(int mask)
{
int n;
if (mask == 0) return 0;
for (n = 1; (mask & 1)==0; n++)
mask >>= 1;
return n;
}
_X_EXPORT char *
xf86getenv(const char * a)
{
/* Only allow this when the real and effective uids are the same */
if (getuid() != geteuid())
return NULL;
else
return(getenv(a));
}
_X_EXPORT void *
xf86bsearch(const void *key, const void *base, xf86size_t nmemb,
xf86size_t size, int (*compar)(const void *, const void *))
{
return bsearch(key, base, (size_t)nmemb, (size_t)size, compar);
}
_X_EXPORT int
xf86execl(const char *pathname, const char *arg, ...)
{
#ifndef __UNIXOS2__
int i;
pid_t pid;
int exit_status;
char *arglist[5];
va_list args;
va_start(args, arg);
arglist[0] = (char*)&args;
i = 1;
while (i < 5 && (arglist[i++] = va_arg(args, char *)) != NULL)
;
va_end(args);
if ((pid = fork()) < 0) {
ErrorF("Fork failed (%s)\n", strerror(errno));
return -1;
} else if (pid == 0) { /* child */
/*
* Make sure that the child doesn't inherit any I/O permissions it
* shouldn't have. It's better to put constraints on the development
* of a clock program than to give I/O permissions to a bogus program
* in someone's XF86Config file
*/
#ifndef SELF_CONTAINED_WRAPPER
xf86DisableIO();
#endif
if (setuid(getuid()) == -1) {
ErrorF("xf86Execl: setuid() failed: %s\n", strerror(errno));
exit(255);
}
#if !defined(SELF_CONTAINED_WRAPPER)
/* set stdin, stdout to the consoleFD, and leave stderr alone */
for (i = 0; i < 2; i++)
{
if (xf86Info.consoleFd != i)
{
close(i);
dup(xf86Info.consoleFd);
}
}
#endif
execv(pathname, arglist);
ErrorF("Exec failed for command \"%s\" (%s)\n",
pathname, strerror(errno));
exit(255);
}
/* parent */
wait(&exit_status);
if (WIFEXITED(exit_status))
{
switch (WEXITSTATUS(exit_status))
{
case 0: /* OK */
return 0;
case 255: /* exec() failed */
return(255);
default: /* bad exit status */
ErrorF("Program \"%s\" had bad exit status %d\n",
pathname, WEXITSTATUS(exit_status));
return(WEXITSTATUS(exit_status));
}
}
else if (WIFSIGNALED(exit_status))
{
ErrorF("Program \"%s\" died on signal %d\n",
pathname, WTERMSIG(exit_status));
return(WTERMSIG(exit_status));
}
#ifdef WIFSTOPPED
else if (WIFSTOPPED(exit_status))
{
ErrorF("Program \"%s\" stopped by signal %d\n",
pathname, WSTOPSIG(exit_status));
return(WSTOPSIG(exit_status));
}
#endif
else /* should never get to this point */
{
ErrorF("Program \"%s\" has unknown exit condition\n",
pathname);
return(1);
}
#else
return(1);
#endif /* __UNIXOS2__ Disable this crazy business for now */
}
_X_EXPORT void
xf86abort(void)
{
ErrorF("Module called abort() function\n");
abort();
}
_X_EXPORT void
xf86exit(int ex)
{
ErrorF("Module called exit() function with value=%d\n",ex);
exit(ex);
}
/* directory handling functions */
#define XF86DIR_magic 0x78666876 /* "xfhv" */
typedef struct _xf86_dir_ {
DIR *dir;
INT32 magic;
XF86DIRENT *dirent;
} XF86DIR_priv;
static void
_xf86checkdirhndl(XF86DIR_priv* f,const char *func)
{
if (!f || f->magic != XF86DIR_magic || !f->dir || !f->dirent) {
FatalError("libc_wrapper error: passed invalid DIR handle to %s",
func);
exit(42);
}
}
_X_EXPORT XF86DIR *
xf86opendir(const char *name)
{
XF86DIR_priv *dp;
DIR *dirp;
dirp = opendir(name);
if (!dirp)
return (XF86DIR*)0;
dp = xalloc(sizeof(XF86DIR_priv));
dp->magic = XF86DIR_magic; /* This time I have this, Dirk! :-) */
dp->dir = dirp;
dp->dirent = xalloc(sizeof(struct _xf86dirent));
return (XF86DIR*)dp;
}
_X_EXPORT XF86DIRENT*
xf86readdir(XF86DIR* dirp)
{
XF86DIR_priv* dp = (XF86DIR_priv*)dirp;
DIRENTRY *de;
XF86DIRENT* xde;
int sz;
_xf86checkdirhndl(dp,"xf86readdir");
de = readdir(dp->dir);
if (!de)
return (XF86DIRENT*)0;
xde = dp->dirent;
sz = strlen(de->d_name);
strncpy(xde->d_name,de->d_name, sz>_XF86NAMELEN ? (_XF86NAMELEN+1) : (sz+1));
xde->d_name[_XF86NAMELEN] = '\0'; /* be sure to have a 0 byte */
return xde;
}
_X_EXPORT void
xf86rewinddir(XF86DIR* dirp)
{
XF86DIR_priv* dp = (XF86DIR_priv*)dirp;
_xf86checkdirhndl(dp,"xf86readdir");
rewinddir(dp->dir);
}
_X_EXPORT int
xf86closedir(XF86DIR* dir)
{
XF86DIR_priv* dp = (XF86DIR_priv*)dir;
int n;
_xf86checkdirhndl(dp,"xf86readdir");
n = closedir(dp->dir);
dp->magic = 0;
xfree(dp->dirent);
xfree(dp);
return n;
}
static mode_t
xfToOsChmodMode(xf86mode_t xfmode)
{
mode_t mode = 0;
if (xfmode & XF86_S_ISUID) mode |= S_ISUID;
if (xfmode & XF86_S_ISGID) mode |= S_ISGID;
#ifndef __UNIXOS2__
if (xfmode & XF86_S_ISVTX) mode |= S_ISVTX;
#endif
if (xfmode & XF86_S_IRUSR) mode |= S_IRUSR;
if (xfmode & XF86_S_IWUSR) mode |= S_IWUSR;
if (xfmode & XF86_S_IXUSR) mode |= S_IXUSR;
if (xfmode & XF86_S_IRGRP) mode |= S_IRGRP;
if (xfmode & XF86_S_IWGRP) mode |= S_IWGRP;
if (xfmode & XF86_S_IXGRP) mode |= S_IXGRP;
if (xfmode & XF86_S_IROTH) mode |= S_IROTH;
if (xfmode & XF86_S_IWOTH) mode |= S_IWOTH;
if (xfmode & XF86_S_IXOTH) mode |= S_IXOTH;
return mode;
}
_X_EXPORT int
xf86chmod(const char *path, xf86mode_t xfmode)
{
mode_t mode = xfToOsChmodMode(xfmode);
int rc = chmod(path, mode);
xf86errno = xf86GetErrno();
return rc;
}
_X_EXPORT int
xf86chown(const char *path, xf86uid_t owner, xf86gid_t group)
{
#ifndef __UNIXOS2__
int rc = chown(path, owner, group);
#else
int rc = 0;
#endif
xf86errno = xf86GetErrno();
return rc;
}
_X_EXPORT xf86uid_t
xf86geteuid(void)
{
return geteuid();
}
_X_EXPORT xf86gid_t
xf86getegid(void)
{
return getegid();
}
_X_EXPORT int
xf86getpid(void)
{
return getpid();
}
static mode_t
xfToOsMknodMode(xf86mode_t xfmode)
{
mode_t mode = xfToOsChmodMode(xfmode);
if (xfmode & XF86_S_IFREG) mode |= S_IFREG;
if (xfmode & XF86_S_IFCHR) mode |= S_IFCHR;
#ifndef __UNIXOS2__
if (xfmode & XF86_S_IFBLK) mode |= S_IFBLK;
#endif
if (xfmode & XF86_S_IFIFO) mode |= S_IFIFO;
return mode;
}
_X_EXPORT int xf86mknod(const char *pathname, xf86mode_t xfmode, xf86dev_t dev)
{
mode_t mode = xfToOsMknodMode(xfmode);
#ifndef __UNIXOS2__
int rc = mknod(pathname, mode, dev);
#else
int rc = 0;
#endif
xf86errno = xf86GetErrno();
return rc;
}
_X_EXPORT unsigned int xf86sleep(unsigned int seconds)
{
return sleep(seconds);
}
_X_EXPORT int xf86mkdir(const char *pathname, xf86mode_t xfmode)
{
mode_t mode = xfToOsChmodMode(xfmode);
int rc = mkdir(pathname, mode);
xf86errno = xf86GetErrno();
return rc;
}
/* Several math functions */
_X_EXPORT int
xf86abs(int x)
{
return abs(x);
}
_X_EXPORT double
xf86acos(double x)
{
return acos(x);
}
_X_EXPORT double
xf86asin(double x)
{
return asin(x);
}
_X_EXPORT double
xf86atan(double x)
{
return atan(x);
}
_X_EXPORT double
xf86atan2(double x,double y)
{
return atan2(x,y);
}
_X_EXPORT double
xf86atof(const char* s)
{
return atof(s);
}
_X_EXPORT int
xf86atoi(const char* s)
{
return atoi(s);
}
_X_EXPORT long
xf86atol(const char* s)
{
return atol(s);
}
_X_EXPORT double
xf86ceil(double x)
{
return ceil(x);
}
_X_EXPORT double
xf86cos(double x)
{
return(cos(x));
}
_X_EXPORT double
xf86exp(double x)
{
return(exp(x));
}
_X_EXPORT double
xf86fabs(double x)
{
return(fabs(x));
}
_X_EXPORT int
xf86finite(double x)
{
#ifndef QNX4
#ifndef __UNIXOS2__
return(finite(x));
#else
return(isfinite(x));
#endif /* __UNIXOS2__ */
#else
/* XXX Replace this with something that really works. */
return 1;
#endif
}
_X_EXPORT double
xf86floor(double x)
{
return floor(x);
}
_X_EXPORT double
xf86fmod(double x,double y)
{
return fmod(x,y);
}
_X_EXPORT long
xf86labs(long x)
{
return labs(x);
}
_X_EXPORT double
xf86ldexp(double x, int exp)
{
return ldexp(x, exp);
}
_X_EXPORT double
xf86log(double x)
{
return(log(x));
}
_X_EXPORT double
xf86log10(double x)
{
return(log10(x));
}
_X_EXPORT double
xf86modf(double x,double* y)
{
return modf(x,y);
}
_X_EXPORT double
xf86pow(double x, double y)
{
return(pow(x,y));
}
_X_EXPORT double
xf86sin(double x)
{
return sin(x);
}
_X_EXPORT double
xf86sqrt(double x)
{
return(sqrt(x));
}
_X_EXPORT double
xf86strtod(const char *s, char **end)
{
return strtod(s,end);
}
_X_EXPORT long
xf86strtol(const char *s, char **end, int radix)
{
return strtol(s,end,radix);
}
_X_EXPORT unsigned long
xf86strtoul(const char *s, char **end,int radix)
{
return strtoul(s,end,radix);
}
_X_EXPORT double
xf86tan(double x)
{
return tan(x);
}
/* memory functions */
_X_EXPORT void*
xf86memchr(const void* s, int c, xf86size_t n)
{
return memchr(s,c,(size_t)n);
}
_X_EXPORT int
xf86memcmp(const void* s1, const void* s2, xf86size_t n)
{
return(memcmp(s1,s2,(size_t)n));
}
_X_EXPORT void*
xf86memcpy(void* dest, const void* src, xf86size_t n)
{
return(memcpy(dest,src,(size_t)n));
}
_X_EXPORT void*
xf86memmove(void* dest, const void* src, xf86size_t n)
{
return(memmove(dest,src,(size_t)n));
}
_X_EXPORT void*
xf86memset(void* s, int c, xf86size_t n)
{
return(memset(s,c,(size_t)n));
}
/* ctype functions */
_X_EXPORT int
xf86isalnum(int c)
{
return isalnum(c) ? 1 : 0;
}
_X_EXPORT int
xf86isalpha(int c)
{
return isalpha(c) ? 1 : 0;
}
_X_EXPORT int
xf86iscntrl(int c)
{
return iscntrl(c) ? 1 : 0;
}
_X_EXPORT int
xf86isdigit(int c)
{
return isdigit(c) ? 1 : 0;
}
_X_EXPORT int
xf86isgraph(int c)
{
return isgraph(c) ? 1 : 0;
}
_X_EXPORT int
xf86islower(int c)
{
return islower(c) ? 1 : 0;
}
_X_EXPORT int
xf86isprint(int c)
{
return isprint(c) ? 1 : 0;
}
_X_EXPORT int
xf86ispunct(int c)
{
return ispunct(c) ? 1 : 0;
}
_X_EXPORT int
xf86isspace(int c)
{
return isspace(c) ? 1 : 0;
}
_X_EXPORT int
xf86isupper(int c)
{
return isupper(c) ? 1 : 0;
}
_X_EXPORT int
xf86isxdigit(int c)
{
return isxdigit(c) ? 1 : 0;
}
_X_EXPORT int
xf86tolower(int c)
{
return tolower(c);
}
_X_EXPORT int
xf86toupper(int c)
{
return toupper(c);
}
/* memory allocation functions */
_X_EXPORT void*
xf86calloc(xf86size_t sz,xf86size_t n)
{
return xcalloc(sz, n);
}
_X_EXPORT void
xf86free(void* p)
{
xfree(p);
}
_X_EXPORT double
xf86frexp(double x, int *exp)
{
return frexp(x, exp);
}
_X_EXPORT void*
xf86malloc(xf86size_t n)
{
return xalloc(n);
}
_X_EXPORT void*
xf86realloc(void* p, xf86size_t n)
{
return xrealloc(p,n);
}
/*
* XXX This probably doesn't belong here.
*/
_X_EXPORT int
xf86getpagesize()
{
static int pagesize = -1;
if (pagesize != -1)
return pagesize;
#if defined(_SC_PAGESIZE) || defined(HAS_SC_PAGESIZE)
pagesize = sysconf(_SC_PAGESIZE);
#endif
#ifdef _SC_PAGE_SIZE
if (pagesize == -1)
pagesize = sysconf(_SC_PAGE_SIZE);
#endif
#ifdef HAS_GETPAGESIZE
if (pagesize == -1)
pagesize = getpagesize();
#endif
#ifdef PAGE_SIZE
if (pagesize == -1)
pagesize = PAGE_SIZE;
#endif
if (pagesize == -1)
FatalError("xf86getpagesize: Cannot determine page size");
return pagesize;
}
#define mapnum(e) case (e): return (xf86_##e)
_X_EXPORT int
xf86GetErrno ()
{
switch (errno)
{
case 0: return 0;
mapnum (EACCES);
mapnum (EAGAIN);
mapnum (EBADF);
mapnum (EEXIST);
mapnum (EFAULT);
mapnum (EINTR);
mapnum (EINVAL);
mapnum (EISDIR);
mapnum (ELOOP); /* not POSIX 1 */
mapnum (EMFILE);
mapnum (ENAMETOOLONG);
mapnum (ENFILE);
mapnum (ENOENT);
mapnum (ENOMEM);
mapnum (ENOSPC);
mapnum (ENOTDIR);
mapnum (EPIPE);
mapnum (EROFS);
#ifndef __UNIXOS2__
mapnum (ETXTBSY); /* not POSIX 1 */
#endif
mapnum (ENOTTY);
#ifdef ENOSYS
mapnum (ENOSYS);
#endif
mapnum (EBUSY);
mapnum (ENODEV);
mapnum (EIO);
#ifdef ESRCH
mapnum (ESRCH);
#endif
#ifdef ENXIO
mapnum (ENXIO);
#endif
#ifdef E2BIG
mapnum (E2BIG);
#endif
#ifdef ENOEXEC
mapnum (ENOEXEC);
#endif
#ifdef ECHILD
mapnum (ECHILD);
#endif
#ifdef ENOTBLK
mapnum (ENOTBLK);
#endif
#ifdef EXDEV
mapnum (EXDEV);
#endif
#ifdef EFBIG
mapnum (EFBIG);
#endif
#ifdef ESPIPE
mapnum (ESPIPE);
#endif
#ifdef EMLINK
mapnum (EMLINK);
#endif
#ifdef EDOM
mapnum (EDOM);
#endif
#ifdef ERANGE
mapnum (ERANGE);
#endif
default:
return (xf86_UNKNOWN);
}
}
#undef mapnum
#ifdef HAVE_SYSV_IPC
_X_EXPORT int
xf86shmget(xf86key_t key, int size, int xf86shmflg)
{
int shmflg;
int ret;
/* This copies the permissions (SHM_R, SHM_W for u, g, o). */
shmflg = xf86shmflg & 0777;
if (key == XF86IPC_PRIVATE) key = IPC_PRIVATE;
if (xf86shmflg & XF86IPC_CREAT) shmflg |= IPC_CREAT;
if (xf86shmflg & XF86IPC_EXCL) shmflg |= IPC_EXCL;
if (xf86shmflg & XF86IPC_NOWAIT) shmflg |= IPC_NOWAIT;
ret = shmget((key_t) key, size, shmflg);
if (ret == -1)
xf86errno = xf86GetErrno();
return ret;
}
_X_EXPORT char *
xf86shmat(int id, char *addr, int xf86shmflg)
{
int shmflg = 0;
pointer ret;
#ifdef SHM_RDONLY
if (xf86shmflg & XF86SHM_RDONLY) shmflg |= SHM_RDONLY;
#endif
#ifdef SHM_RND
if (xf86shmflg & XF86SHM_RND) shmflg |= SHM_RND;
#endif
#ifdef SHM_REMAP
if (xf86shmflg & XF86SHM_REMAP) shmflg |= SHM_REMAP;
#endif
ret = shmat(id,addr,shmflg);
if (ret == (pointer) -1)
xf86errno = xf86GetErrno();
return ret;
}
_X_EXPORT int
xf86shmdt(char *addr)
{
int ret;
ret = shmdt(addr);
if (ret == -1)
xf86errno = xf86GetErrno();
return ret;
}
/*
* for now only implement the rmid command.
*/
_X_EXPORT int
xf86shmctl(int id, int xf86cmd, pointer buf)
{
int cmd;
int ret;
switch (xf86cmd) {
case XF86IPC_RMID:
cmd = IPC_RMID;
break;
default:
return 0;
}
ret = shmctl(id, cmd, buf);
if (ret == -1)
xf86errno = xf86GetErrno();
return ret;
}
#else
int
xf86shmget(xf86key_t key, int size, int xf86shmflg)
{
xf86errno = ENOSYS;
return -1;
}
char *
xf86shmat(int id, char *addr, int xf86shmflg)
{
xf86errno = ENOSYS;
return (char *)-1;
}
int
xf86shmctl(int id, int xf86cmd, pointer buf)
{
xf86errno = ENOSYS;
return -1;
}
int
xf86shmdt(char *addr)
{
xf86errno = ENOSYS;
return -1;
}
#endif /* HAVE_SYSV_IPC */
_X_EXPORT int
xf86getjmptype()
{
#ifdef HAS_GLIBC_SIGSETJMP
return 1;
#else
return 0;
#endif
}
#ifdef HAS_GLIBC_SIGSETJMP
_X_EXPORT int
xf86setjmp(xf86jmp_buf env)
{
#if defined(__GLIBC__) && (__GLIBC__ >= 2)
return __sigsetjmp((void *)env, xf86setjmp1_arg2());
#else
return xf86setjmp1(env, xf86setjmp1_arg2());
#endif
}
_X_EXPORT int
xf86setjmp0(xf86jmp_buf env)
{
FatalError("setjmp: type 0 called instead of type %d", xf86getjmptype());
}
#if !defined(__GLIBC__) || (__GLIBC__ < 2) /* libc5 */
_X_EXPORT int
xf86setjmp1(xf86jmp_buf env, int arg2)
{
__sigjmp_save((void *)env, arg2);
return __setjmp((void *)env);
}
#endif
#else /* HAS_GLIBC_SIGSETJMP */
int
xf86setjmp1(xf86jmp_buf env, int arg2)
{
FatalError("setjmp: type 1 called instead of type %d", xf86getjmptype());
}
int
xf86setjmp0(xf86jmp_buf env)
{
return setjmp((void *)env);
}
#endif /* HAS_GLIBC_SIGSETJMP */
_X_EXPORT int
xf86setjmp1_arg2()
{
return 1;
}
_X_EXPORT int
xf86setjmperror(xf86jmp_buf env)
{
FatalError("setjmp: don't know how to handle setjmp() type %d",
xf86getjmptype());
}
long
xf86random()
{
return random();
}