diff options
Diffstat (limited to 'nx-X11/config/util/mkshadow/mkshadow.c')
| -rw-r--r-- | nx-X11/config/util/mkshadow/mkshadow.c | 378 |
1 files changed, 0 insertions, 378 deletions
diff --git a/nx-X11/config/util/mkshadow/mkshadow.c b/nx-X11/config/util/mkshadow/mkshadow.c deleted file mode 100644 index d9c5eb841..000000000 --- a/nx-X11/config/util/mkshadow/mkshadow.c +++ /dev/null @@ -1,378 +0,0 @@ -/* $Xorg: mkshadow.c,v 1.3 2000/08/17 19:41:53 cpqbld Exp $ */ -/* mkshadow.c - make a "shadow copy" of a directory tree with symlinks. - Copyright 1990, 1993 Free Software Foundation, Inc. - - Permission to use, copy, modify, and distribute this program for - any purpose and without fee is hereby granted, provided that this - copyright and permission notice appear on all copies, and that - notice be given that copying and distribution is by permission of - the Free Software Foundation. The Free Software Foundation makes - no representations about the suitability of this software for any - purpose. It is provided "as is" without expressed or implied - warranty. - - (The FSF has modified its usual distribution terms, for this file, - as a courtesy to the X project.) */ - -/* - * Usage: mkshadow [-X exclude_file] [-x exclude_pattern] ... MASTER [SHADOW] - * Makes SHADOW be a "shadow copy" of MASTER. SHADOW defaults to the current - * directory. Sort of like a recursive copy of MASTER to SHADOW. - * However, symbolic links are used instead of actually - * copying (non-directory) files. - * Also, directories named RCS or SCCS are shared (with a symbolic link). - * Warning messages are printed for files (and directories) in . - * that don't match a corresponding file in MASTER (though - * symbolic links are silently removed). - * Also, a warning message is printed for non-directory files - * under SHADOW that are not symbolic links. - * - * Files and directories can be excluded from the sharing - * with the -X and -x flags. The flag `-x pattern' (or `-xpattern') - * means that mkshadow should ignore any file whose name matches - * the pattern. The pattern is a "globbing" pattern, i.e. the - * characters *?[^-] are interpreted as by the shell. - * If the pattern contains a '/' is is matched against the complete - * current path (relative to '.'); otherwise, it is matched - * against the last component of the path. - * A `-X filename' flag means to read a set of exclusion patterns - * from the named file, one pattern to a line. - * - * Originally written by Per Bothner at University of Wisconsin-Madison, - * inspired by the lndir script distributed with X11. - * Modified by Per Bothner <bothner@cygnus.com> November 1993 - * to more-or-less follow Posix. - */ - -#include <sys/types.h> -#include <stdio.h> -#ifdef BSD -#include <strings.h> -#define strchr index -#else -#include <string.h> -#endif -#include <sys/stat.h> -#if defined(S_IFDIR) && !defined(S_ISDIR) -#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) -#endif -#if defined(S_IFLNK) && !defined(S_ISLNK) -#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK) -#endif -#ifndef S_ISLNK -#define lstat stat -#endif -#ifndef MAXPATHLEN -#define MAXPATHLEN 1024 -#endif -#include <errno.h> -#ifndef errno -extern int errno; -#endif - -extern char * savedir(); - -fatal(msg) - char *msg; -{ - if (errno) perror(msg ? msg : ""); - else if (msg) fprintf(stderr, "mkshadow: %s\n", msg); - exit(-1); -} - -/* When handling symbolic links to relative directories, - * we need to prepend "../" to the "source". - * We preallocate MAX_DEPTH repetations of "../" using a simple trick. - */ -#define MAX_DEPTH 20 -#define PREPEND_BUFFER_SIZE (MAX_DEPTH*3) -char master_buffer[MAXPATHLEN+PREPEND_BUFFER_SIZE] = - "../../../../../../../../../../../../../../../../../../../../"; -/* The logical start of the master_buffer is defined by - * master_start, which skips the fixed prepend area. - */ -#define master_start (master_buffer+PREPEND_BUFFER_SIZE) -char shadow_buffer[MAXPATHLEN]; - -void bad_args(msg) -{ - if (msg) fprintf(stderr, "%s\n", msg); - fprintf (stderr, "usage: mkshadow [-X exclude_file] [-x exclude_pattern]"); - fprintf (stderr, " master [shadow]\n"); - exit(-1); -} - -int exclude_count = 0; -char **exclude_patterns = NULL; -int exclude_limit = 0; - -void add_exclude(pattern) - char *pattern; -{ - if (exclude_limit == 0) { - exclude_limit = 100; - exclude_patterns = (char**)malloc(exclude_limit * sizeof(char*)); - } else if (exclude_count + 1 >= exclude_limit) { - exclude_limit += 100; - exclude_patterns = (char**)realloc(exclude_patterns, - exclude_limit * sizeof(char*)); - } - exclude_patterns[exclude_count] = pattern; - exclude_count++; -} - -void add_exclude_file(name) - char *name; -{ - char buf[MAXPATHLEN]; - FILE *file = fopen(name, "r"); - if (file == NULL) fatal("failed to find -X (exclude) file"); - for (;;) { - int len; - char *str = fgets(buf, MAXPATHLEN, file); - if (str == NULL) break; - len = strlen(str); - if (len && str[len-1] == '\n') str[--len] = 0; - if (!len) continue; - str = (char*)malloc(len+1); - strcpy(str, buf); - add_exclude(str); - } - fclose(file); -} - -main(argc, argv) - char **argv; -{ - char *master_name = NULL; - char *shadow_name = NULL; - int i; - for (i = 1; i < argc; i++) { - if (argv[i][0] == '-') { - switch(argv[i][1]) { - case 'X': - if (argv[i][2]) add_exclude_file(&argv[i][2]); - else if (++i >= argc) bad_args(NULL); - else add_exclude_file(argv[i]); - break; - case 'x': - if (argv[i][2]) add_exclude(&argv[i][2]); - else if (++i >= argc) bad_args(NULL); - else add_exclude(argv[i]); - break; - default: - bad_args(NULL); - } - } else if (master_name == NULL) - master_name = argv[i]; - else if (shadow_name == NULL) - shadow_name = argv[i]; - else bad_args (NULL); - } - - if (master_name == NULL) bad_args(NULL); - if (shadow_name == NULL) - shadow_name = "."; - else if ((shadow_name[0] != '.' || shadow_name[1]) - && master_name[0] != '/') { - fprintf(stderr, "Shadowing a relative directory pathname to a \n"); - fprintf(stderr, "shadow other than '.' is not supported!\n"); - exit(-1); - } - strcpy(shadow_buffer, shadow_name); - strcpy(master_start, master_name); - DoCopy(master_start, shadow_buffer, 0); - return 0; -} - -int compare_strings(ptr1, ptr2) - char **ptr1, **ptr2; -{ - return strcmp(*ptr1, *ptr2); -} - -void MakeLink(master, current, depth) - char *master; - char *current; - int depth; -{ - if (master[0] != '/') { - /* Source directory was specified with a relative pathname. */ - if (master != master_start) { - fatal("Internal bug: bad string buffer use"); - } - /* Pre-pend "../" depth times. This compensates for - * the directories we've entered. */ - master -= 3 * depth; - } - if (symlink(master, current)) { - fprintf(stderr, "Failed to create symbolic link %s->%s\n", - current, master); - exit (-1); - } -} - - -/* Get a sorted NULL_terminator array of (char*) using 'names' - * (created by save_dir) as data. - */ -char ** get_name_pointers(names) - char *names; -{ - int n_names = 0; - int names_buf_size = 64; - char *namep; - char ** pointers = (char**)malloc(names_buf_size * sizeof(char*)); - if (!names || !pointers) fatal("virtual memory exhausted"); - - for (namep = names; *namep; namep += strlen(namep) + 1) { - if (n_names + 1 >= names_buf_size) { - names_buf_size *= 2; - pointers = (char**)realloc(pointers, - names_buf_size * sizeof(char*)); - if (!pointers) fatal("virtual memory exhausted"); - } - pointers[n_names++] = namep; - } - pointers[n_names] = 0; - qsort(pointers, n_names, sizeof(char*), compare_strings); - return pointers; -} - -/* Recursively shadow the directory whose name is in MASTER - * (which is == MASTER_START) into the destination directory named CURRENT. - */ - -DoCopy(master, current, depth) - char *master; /* The source directory. */ - char *current; /* The destination directory. */ - int depth; -{ - struct stat stat_master, stat_current; - char **master_pointer, **current_pointer; - char **master_names, **current_names; - char *master_end, *current_end; - char *master_name_buf, *current_name_buf; - master_end = master + strlen(master); - current_end = current + strlen(current); - - /* Get rid of terminal '/' */ - if (master_end[-1] == '/' && master != master_end - 1) - *--master_end = 0; - if (current_end[-1] == '/' && current != current_end - 1) - *--current_end = 0; - - if (depth >= MAX_DEPTH) { - fprintf(stderr, - "Nesting too deep (depth %d at %s). Probable circularity.\n", - depth, master); - exit(-1); - } - - master_name_buf = savedir(master, 500); - if (master_name_buf == NULL) { - fprintf(stderr, "Not enough memory or no such directory: %s\n", - master); - exit(-1); - } - current_name_buf = savedir(current, 500); - if (current_name_buf == NULL) { - fprintf(stderr, "Not enough memory or no such directory: %s\n", - current); - exit(-1); - } - - master_names = get_name_pointers(master_name_buf); - current_names = get_name_pointers(current_name_buf); - - master_pointer = master_names; - current_pointer = current_names; - for (;;) { - int cmp, ipat; - int in_master, in_current; - char *cur_name; - if (*master_pointer == NULL && *current_pointer == NULL) - break; - if (*master_pointer == NULL) cmp = 1; - else if (*current_pointer == NULL) cmp = -1; - else cmp = strcmp(*master_pointer, *current_pointer); - if (cmp < 0) { /* file only exists in master directory */ - in_master = 1; in_current = 0; - } else if (cmp == 0) { /* file exists in both directories */ - in_master = 1; in_current = 1; - } else { /* file only exists in current directory */ - in_current = 1; in_master = 0; - } - cur_name = in_master ? *master_pointer : *current_pointer; - sprintf(master_end, "/%s", cur_name); - sprintf(current_end, "/%s", cur_name); - for (ipat = 0; ipat < exclude_count; ipat++) { - char *pat = exclude_patterns[ipat]; - char *cur; - if (strchr(pat, '/')) cur = current + 2; /* Skip initial "./" */ - else cur = cur_name; - if (wildmat(cur, pat)) goto skip; - } - if (in_master) - if (lstat(master, &stat_master) != 0) fatal("stat failed"); - if (in_current) - if (lstat(current, &stat_current) != 0) fatal("stat failed"); - if (in_current && !in_master) { - if (S_ISLNK(stat_current.st_mode)) - if (unlink(current)) { - fprintf(stderr, "Failed to remove symbolic link %s.\n", - current); - } - else - fprintf(stderr, "Removed symbolic link %s.\n", - current); - else { - fprintf(stderr, - "The file %s does not exist in the master tree.\n", - current); - } - } - else if (S_ISDIR(stat_master.st_mode) - && strcmp(cur_name, "RCS") != 0 - && strcmp(cur_name, "SCCS") != 0) { - if (!in_current) { - if (mkdir(current, 0775)) fatal("mkdir failed"); - } - else if (stat(current, &stat_current)) fatal("stat failed"); - if (!in_current || stat_current.st_dev != stat_master.st_dev - || stat_current.st_ino != stat_master.st_ino) - DoCopy(master, current, depth+1); - else - fprintf(stderr, "Link %s is the same as directory %s.\n", - current, master); - } - else { - if (!in_current) - MakeLink(master, current, depth); - else if (!S_ISLNK(stat_current.st_mode)) { - fprintf(stderr, "Existing file %s is not a symbolic link.\n", - current); - } else { - if (stat(current, &stat_current) || stat(master, &stat_master)) - fatal("stat failed"); - if (stat_current.st_dev != stat_master.st_dev - || stat_current.st_ino != stat_master.st_ino) { - fprintf(stderr, "Fixing incorrect symbolic link %s.\n", - current); - if (unlink(current)) { - fprintf(stderr, "Failed to remove symbolic link %s.\n", - current); - } - else - MakeLink(master, current, depth); - } - } - } - skip: - if (in_master) master_pointer++; - if (in_current) current_pointer++; - } - - free(master_names); free(current_names); - free(master_name_buf); free(current_name_buf); -} |