boinc/samples/cygwin_fstab/fstab.c

99 lines
2.6 KiB
C

// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2016 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
// fstab PROJECT_DIR Create an etc/fstab file for a cygwin environment
// see: http://boinc.berkeley.edu/trac/wiki/WrapperApp
// cmdline options:
// PROJECT_DIR an absolute (Windows) path to the project directory
//
// Creates a file "etc\fstab" which allows BOINC XML soft links to properly
// refer to files in the project directory if using an application compiled
// with a cygwin environment on a Windows host
// For example the command
// fstab "C:\BOINC Data\projects\my.project.dir"
// will produce a file "etc\fstab" containing the line
// C:/BOINC\040Data/projects/my.project.dir /projects/my.project.dir dummy binary 0 0
// with the CWD regarded as "root" where ".." and "." all point to "/", file locations of the form
// ../../projects/my.project.dir/file
// can now be properly used
#include <stdio.h>
#include <string.h>
#include <limits.h>
#ifdef _WIN32
#include <windows.h>
#else
#include <sys/stat.h>
#endif
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
char path[PATH_MAX];
int main(int argc, char*argv[]) {
char* c = argv[1];
char *n, *proj;
unsigned int i=0;
// replace all "\" with "/" in argv[1]
while (*c) {
if (*c == '\\') {
*c = '/';
}
c++;
}
// point proj to second-last "/"
while (i<2) {
c--;
if (*c == '/')
i++;
}
proj = c;
// copy argv[1] to path, replacing " " with "\040"
c = argv[1];
while ((n = strchr(c,' '))) {
*n = '\0'; // end the string to copy here
strcat(path, c);
strcat(path, "\\040");
*n = ' '; // restore the original value
c = n + 1;
}
strcat(path, c);
#ifdef _WIN32
CreateDirectory ("etc", NULL);
FILE* fp = fopen("etc\\fstab", "w");
#else
mkdir("etc",0755);;
FILE* fp = fopen("etc/fstab", "w");
#endif
if (!fp)
return(1);
fprintf(fp, "%s /project dummy binary 0 0\n", path);
fprintf(fp, "%s %s dummy binary 0 0\n", path, proj);
fclose(fp);
return(0);
}