Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | /* vi: set sw=4 ts=4: */ /* * Mini ln implementation for busybox * * Copyright (C) 1999,2000,2001 by Lineo, inc. * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include "busybox.h" #define BB_DECLARE_EXTERN #define bb_need_not_a_directory #include "messages.c" #include <stdio.h> #include <dirent.h> #include <string.h> #include <stdlib.h> #include <errno.h> #include <unistd.h> static const int LN_SYMLINK = 1; static const int LN_FORCE = 2; static const int LN_NODEREFERENCE = 4; /* * linkDestName is where the link points to, * linkSrcName is the name of the link to be created. */ static int fs_link(const char *link_DestName, const char *link_SrcName, const int flag) { int status; int srcIsDir; char *srcName; if (link_DestName==NULL) return(FALSE); srcName = (char *) malloc(strlen(link_SrcName)+strlen(link_DestName)+1); if (link_SrcName==NULL) strcpy(srcName, link_DestName); else strcpy(srcName, link_SrcName); if (flag&LN_NODEREFERENCE) srcIsDir = is_directory(srcName, TRUE, NULL); else srcIsDir = is_directory(srcName, FALSE, NULL); if ((srcIsDir==TRUE)&&((flag&LN_NODEREFERENCE)==0)) { strcat(srcName, "/"); strcat(srcName, link_DestName); } if (flag&LN_FORCE) unlink(srcName); if (flag&LN_SYMLINK) status = symlink(link_DestName, srcName); else status = link(link_DestName, srcName); if (status != 0) { perror(srcName); return(FALSE); } return(TRUE); } extern int ln_main(int argc, char **argv) { int status = EXIT_SUCCESS; int flag = 0; int opt; /* Parse any options */ while ((opt=getopt(argc, argv, "sfn")) != -1) { switch(opt) { case 's': flag |= LN_SYMLINK; break; case 'f': flag |= LN_FORCE; break; case 'n': flag |= LN_NODEREFERENCE; break; default: usage(ln_usage); } } while(optind<(argc-1)) { if (fs_link(argv[optind], argv[argc-1], flag)==FALSE) status = EXIT_FAILURE; optind++; } return(status); } /* Local Variables: c-file-style: "linux" c-basic-offset: 4 tab-width: 4 End: */ |