projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 6d2010ae A |
1 | /* |
| 2 | * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights | |
| 7 | * Reserved. This file contains Original Code and/or Modifications of | |
| 8 | * Original Code as defined in and that are subject to the Apple Public | |
| 9 | * Source License Version 1.0 (the 'License'). You may not use this file | |
| 10 | * except in compliance with the License. Please obtain a copy of the | |
| 11 | * License at http://www.apple.com/publicsource and read it before using | |
| 12 | * this file. | |
| 13 | * | |
| 14 | * The Original Code and all software distributed under the License are | |
| 15 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 16 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 17 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the | |
| 19 | * License for the specific language governing rights and limitations | |
| 20 | * under the License." | |
| 21 | * | |
| 22 | * @APPLE_LICENSE_HEADER_END@ | |
| 23 | */ | |
| 24 | /* openp, fopenp -- search pathlist and open file | |
| 25 | * | |
| 26 | * Usage: | |
| 27 | * i = openp (path,file,complete,flags,mode) | |
| 28 | * f = fopenp (path,file,complete,type) | |
| 29 | * int i,flags,mode; | |
| 30 | * FILE *f; | |
| 31 | * char *path,*file,*complete,*type; | |
| 32 | * | |
| 33 | * Openp searches for "file" in the pathlist "path"; | |
| 34 | * when the file is found and can be opened by open() | |
| 35 | * with the specified "flags" and "mode", then the full filename | |
| 36 | * is copied into "complete" and openp returns the file | |
| 37 | * descriptor. If no such file is found, openp returns -1. | |
| 38 | * Fopenp performs the same function, using fopen() instead | |
| 39 | * of open() and type instead of flags/mode; it returns 0 if no | |
| 40 | * file is found. | |
| 41 | * | |
| 42 | * HISTORY | |
| 43 | * 30-Apr-85 Steven Shafer (sas) at Carnegie-Mellon University | |
| 44 | * Adapted for 4.2 BSD UNIX. Added new parameter to openp.c; | |
| 45 | * changed names of flags, mode, and type parameters to reflect | |
| 46 | * current manual entries for open and fopen. | |
| 47 | * | |
| 48 | * 20-Nov-79 Steven Shafer (sas) at Carnegie-Mellon University | |
| 49 | * Created for VAX. | |
| 50 | * | |
| 51 | */ | |
| 52 | ||
| 53 | #include <stdio.h> | |
| 54 | #include <fcntl.h> /* open */ | |
| 55 | #include "config.h" | |
| 56 | ||
| 57 | ||
| 58 | int openp(const char *fpath, char *file, char *complete, int flags, int mode); | |
| 59 | ||
| 60 | static int flgs,mod,value; | |
| 61 | static const char *ftyp; | |
| 62 | static FILE *fvalue; | |
| 63 | ||
| 64 | static int | |
| 65 | func(char *fnam) | |
| 66 | { | |
| 67 | value = open (fnam,flgs,mod); | |
| 68 | return (value < 0); | |
| 69 | } | |
| 70 | ||
| 71 | static int | |
| 72 | ffunc(char *fnam) | |
| 73 | { | |
| 74 | fvalue = fopen (fnam,ftyp); | |
| 75 | return (fvalue == 0); | |
| 76 | } | |
| 77 | ||
| 78 | int | |
| 79 | openp(const char *fpath, char *file, char *complete, int flags, int mode) | |
| 80 | { | |
| 81 | flgs = flags; | |
| 82 | mod = mode; | |
| 83 | if (searchp(fpath,file,complete,func) < 0) return (-1); | |
| 84 | return (value); | |
| 85 | } | |
| 86 | ||
| 87 | FILE * | |
| 88 | fopenp(const char *fpath, char *file, char *complete, const char *ftype) | |
| 89 | { | |
| 90 | ftyp = ftype; | |
| 91 | if (searchp(fpath,file,complete,ffunc) < 0) return (0); | |
| 92 | return (fvalue); | |
| 93 | } |