Main Page   Namespace List   Class Hierarchy   Alphabetical List   Compound List   File List   Namespace Members   Compound Members   File Members   Related Pages  

VMDDir.C

Go to the documentation of this file.
00001 /***************************************************************************
00002  *cr
00003  *cr            (C) Copyright 1995-2019 The Board of Trustees of the
00004  *cr                        University of Illinois
00005  *cr                         All Rights Reserved
00006  *cr
00007  ***************************************************************************/
00008 
00009 /***************************************************************************
00010  * RCS INFORMATION:
00011  *
00012  *      $RCSfile: VMDDir.C,v $
00013  *      $Author: johns $        $Locker:  $             $State: Exp $
00014  *      $Revision: 1.16 $       $Date: 2019/01/17 21:21:02 $
00015  *
00016  ***************************************************************************
00017  * DESCRIPTION:
00018  *  Low level platform-specific directory read/scan code
00019  ***************************************************************************/
00020 
00021 #include "VMDDir.h"
00022 #include <string.h>
00023 #include <stdlib.h>
00024 
00025 #define VMD_FILENAME_MAX 1024
00026 
00027 #if defined(_MSC_VER) 
00028 
00029 /* Windows version */
00030 
00031 VMDDIR * vmd_opendir(const char * filename) {
00032   VMDDIR * d;
00033   char dirname[VMD_FILENAME_MAX];
00034 
00035   strcpy(dirname, filename);
00036   strcat(dirname, "\\*");
00037   d = (VMDDIR *) malloc(sizeof(VMDDIR));
00038   if (d != NULL) {
00039     d->h = FindFirstFile(dirname, &(d->fd));
00040     if (d->h == ((HANDLE)(-1))) {
00041       free(d);
00042       return NULL;
00043     }
00044   }
00045   return d;
00046 }
00047 
00048 char * vmd_readdir(VMDDIR * d) {
00049   if (FindNextFile(d->h, &(d->fd))) {
00050     return d->fd.cFileName; 
00051   }
00052   return NULL;     
00053 }
00054 
00055 void vmd_closedir(VMDDIR * d) {
00056   if (d->h != NULL) {
00057     FindClose(d->h);
00058   }
00059   free(d);
00060 }
00061 
00062 
00063 int vmd_file_is_executable(const char * filename) {
00064   FILE * fp = NULL;
00065   char *newfilename = (char *) malloc(strlen(filename)+1);
00066 
00067   if (newfilename != NULL) {
00068     char *ns = newfilename;
00069     const char *s = filename;
00070   
00071     // windows chokes on filenames containing " characters, so we remove them
00072     while ((*s) != '\0') {
00073       if ((*s) != '\"') {
00074         *ns = *s;
00075         ns++;
00076       }
00077       s++;
00078     }
00079     *ns = '\0';
00080 
00081     fp=fopen(newfilename, "rb");
00082     free(newfilename);
00083 
00084     if (fp != NULL) {
00085       fclose(fp);
00086       return 1;
00087     }
00088   }
00089 
00090   return 0;
00091 } 
00092 
00093 #else
00094 
00095 /* Unix version */
00096 
00097 #include <sys/types.h>
00098 #include <sys/stat.h>
00099 
00100 VMDDIR * vmd_opendir(const char * filename) {
00101   VMDDIR * d;
00102 
00103   d = (VMDDIR *) malloc(sizeof(VMDDIR));
00104   if (d != NULL) {
00105     d->d = opendir(filename);
00106     if (d->d == NULL) {
00107       free(d);
00108       return NULL;
00109     }
00110   }
00111 
00112   return d;
00113 }
00114 
00115 char * vmd_readdir(VMDDIR * d) {
00116   struct dirent * p;
00117   if ((p = readdir(d->d)) != NULL) {
00118     return p->d_name;
00119   }
00120 
00121   return NULL;     
00122 }
00123 
00124 void vmd_closedir(VMDDIR * d) {
00125   if (d->d != NULL) {
00126     closedir(d->d);
00127   }
00128   free(d);
00129 }
00130 
00131 int vmd_file_is_executable(const char * filename) {
00132   struct stat buf;
00133   memset(&buf, 0, sizeof(buf));
00134 
00135   if (!stat(filename, &buf) &&
00136            ((buf.st_mode & S_IXUSR) ||
00137             (buf.st_mode & S_IXGRP) ||
00138             (buf.st_mode & S_IXOTH)) &&
00139             (buf.st_mode & S_IFREG)) {
00140     return 1;
00141   }
00142 
00143   return 0;
00144 }
00145 
00146 #endif
00147 
00148 
00149 
00150 

Generated on Wed Dec 4 02:44:50 2024 for VMD (current) by doxygen1.2.14 written by Dimitri van Heesch, © 1997-2002