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Diffstat (limited to 'libX11/src/GetDflt.c')
| -rw-r--r-- | libX11/src/GetDflt.c | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/libX11/src/GetDflt.c b/libX11/src/GetDflt.c new file mode 100644 index 000000000..7b4015258 --- /dev/null +++ b/libX11/src/GetDflt.c @@ -0,0 +1,259 @@ +/* $Xorg: GetDflt.c,v 1.6 2001/02/09 02:03:33 xorgcvs Exp $ */ + +/*********************************************************** + +Copyright 1987, 1988, 1998 The Open Group + +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. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + + +Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +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 name of Digital not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL 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. + +******************************************************************/ +/* $XFree86: xc/lib/X11/GetDflt.c,v 3.22 2003/04/13 19:22:16 dawes Exp $ */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" +#include <X11/Xos.h> +#include <X11/Xresource.h> + +#ifndef X_NOT_POSIX +#ifdef _POSIX_SOURCE +#include <limits.h> +#else +#define _POSIX_SOURCE +#include <limits.h> +#undef _POSIX_SOURCE +#endif +#endif +#ifndef PATH_MAX +#ifdef WIN32 +#define PATH_MAX 512 +#else +#include <sys/param.h> +#endif +#ifndef PATH_MAX +#ifdef MAXPATHLEN +#define PATH_MAX MAXPATHLEN +#else +#define PATH_MAX 1024 +#endif +#endif +#endif + +#ifdef XTHREADS +#include <X11/Xthreads.h> +#endif +#ifndef WIN32 +#define X_INCLUDE_PWD_H +#define XOS_USE_XLIB_LOCKING +#include <X11/Xos_r.h> +#endif +#include <stdio.h> +#include <ctype.h> + + +/*ARGSUSED*/ +static char * +GetHomeDir( + char *dest, + int len) +{ +#ifdef WIN32 + register char *ptr1 = NULL; + register char *ptr2 = NULL; + int len1 = 0, len2 = 0; + + if ((ptr1 = getenv("HOME"))) { /* old, deprecated */ + len1 = strlen (ptr1); + } else if ((ptr1 = getenv("HOMEDRIVE")) && (ptr2 = getenv("HOMEDIR"))) { + len1 = strlen (ptr1); + len2 = strlen (ptr2); + } else if ((ptr2 = getenv("USERNAME"))) { + len1 = strlen (ptr1 = "/users/"); + len2 = strlen (ptr2); + } + if ((len1 + len2 + 1) < len) + sprintf (dest, "%s%s", ptr1, (ptr2) ? ptr2 : ""); + else + *dest = '\0'; +#else +#ifdef X_NEEDS_PWPARAMS + _Xgetpwparams pwparams; +#endif + struct passwd *pw; + register char *ptr; + + if (len <= 0 || dest == NULL) + return NULL; + + if ((ptr = getenv("HOME"))) { + (void) strncpy(dest, ptr, len-1); + dest[len-1] = '\0'; + } else { + if ((ptr = getenv("USER"))) + pw = _XGetpwnam(ptr,pwparams); + else + pw = _XGetpwuid(getuid(),pwparams); + if (pw != NULL) { + (void) strncpy(dest, pw->pw_dir, len-1); + dest[len-1] = '\0'; + } else + *dest = '\0'; + } +#endif + return dest; +} + + +static XrmDatabase +InitDefaults( + Display *dpy) /* display for defaults.... */ +{ + XrmDatabase userdb; + XrmDatabase xdb; + char fname[PATH_MAX]; /* longer than any conceivable size */ + char *xenv; + + XrmInitialize(); + + /* + * See lib/Xt/Initialize.c + * + * First, get the defaults from the server; if none, then load from + * ~/.Xdefaults. Next, if there is an XENVIRONMENT environment variable, + * then load that file. + */ + + if (dpy->xdefaults == NULL) { + const char *slashDotXdefaults = "/.Xdefaults"; + + (void) GetHomeDir (fname, PATH_MAX - strlen (slashDotXdefaults) - 1); + (void) strcat (fname, slashDotXdefaults); + xdb = XrmGetFileDatabase (fname); + } else { + xdb = XrmGetStringDatabase(dpy->xdefaults); + } + + if (!(xenv = getenv ("XENVIRONMENT"))) { + const char *slashDotXdefaultsDash = "/.Xdefaults-"; + int len; + + (void) GetHomeDir (fname, PATH_MAX - strlen (slashDotXdefaultsDash) - 1); + (void) strcat (fname, slashDotXdefaultsDash); + len = strlen (fname); + (void) _XGetHostname (fname+len, PATH_MAX-len); + xenv = fname; + } + userdb = XrmGetFileDatabase (xenv); + XrmMergeDatabases (userdb, &xdb); + return (xdb); + +#ifdef old + if (fname[0] != '\0') userdb = XrmGetFileDatabase(fname); + xdb = XrmGetStringDatabase(dpy->xdefaults); + XrmMergeDatabases(userdb, &xdb); + return xdb; +#endif +} + +char * +XGetDefault( + Display *dpy, /* display for defaults.... */ + char _Xconst *prog, /* name of program for option */ + register _Xconst char *name) /* name of option program wants */ +{ /* to get, for example, "font" */ + XrmName names[3]; + XrmClass classes[3]; + XrmRepresentation fromType; + XrmValue result; + char *progname; +#ifdef WIN32 + char *progname2; +#endif +#ifdef __UNIXOS2__ + char *progname2; + char *dotpos; +#endif + + /* + * strip path off of program name (XXX - this is OS specific) + */ + progname = strrchr (prog, '/'); +#ifdef WIN32 + progname2 = strrchr (prog, '\\'); + if (progname2 && (!progname || progname < progname2)) + progname = progname2; +#endif +#ifdef __UNIXOS2__ /* Very similar to WIN32 */ + progname2 = strrchr (prog, '\\'); + if (progname2 && (!progname || progname < progname2)) + progname = progname2; + dotpos = strrchr (prog, '.'); + if (dotpos && (dotpos>progname2)) *dotpos='\0'; +#endif /* We take out the .exe suffix */ + + if (progname) + progname++; + else + progname = (char *)prog; + + /* + * see if database has ever been initialized. Lookups can be done + * without locks held. + */ + LockDisplay(dpy); + if (dpy->db == NULL) { + dpy->db = InitDefaults(dpy); + dpy->flags |= XlibDisplayDfltRMDB; + } + UnlockDisplay(dpy); + + names[0] = XrmStringToName(progname); + names[1] = XrmStringToName(name); + names[2] = NULLQUARK; + classes[0] = XrmStringToClass("Program"); + classes[1] = XrmStringToClass("Name"); + classes[2] = NULLQUARK; + (void)XrmQGetResource(dpy->db, names, classes, &fromType, &result); + return (result.addr); +} + |