diff options
-rw-r--r-- | usr.bin/patch/backupfile.c | 238 | ||||
-rw-r--r-- | usr.bin/patch/backupfile.h | 38 | ||||
-rw-r--r-- | usr.bin/patch/pathnames.h | 11 |
3 files changed, 0 insertions, 287 deletions
diff --git a/usr.bin/patch/backupfile.c b/usr.bin/patch/backupfile.c deleted file mode 100644 index 5863e9b..0000000 --- a/usr.bin/patch/backupfile.c +++ /dev/null @@ -1,238 +0,0 @@ -/* $OpenBSD: backupfile.c,v 1.17 2003/08/01 20:30:48 otto Exp $ */ - -/* - * backupfile.c -- make Emacs style backup file names Copyright (C) 1990 Free - * Software Foundation, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * without restriction. - * - * 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. - */ - -/* - * David MacKenzie <djm@ai.mit.edu>. Some algorithms adapted from GNU Emacs. - */ - -#ifndef lint -static const char rcsid[] = "$OpenBSD: backupfile.c,v 1.17 2003/08/01 20:30:48 otto Exp $"; -#endif /* not lint */ - -#include <ctype.h> -#include <dirent.h> -#include <libgen.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "backupfile.h" - - -#define ISDIGIT(c) (isascii (c) && isdigit (c)) - -/* Which type of backup file names are generated. */ -enum backup_type backup_type = none; - -/* - * The extension added to file names to produce a simple (as opposed to - * numbered) backup file name. - */ -char *simple_backup_suffix = "~"; - -static char *concat(const char *, const char *); -static char *make_version_name(const char *, int); -static int max_backup_version(const char *, const char *); -static int version_number(const char *, const char *, int); -static int argmatch(const char *, const char **); -static void invalid_arg(const char *, const char *, int); - -/* - * Return the name of the new backup file for file FILE, allocated with - * malloc. Return 0 if out of memory. FILE must not end with a '/' unless it - * is the root directory. Do not call this function if backup_type == none. - */ -char * -find_backup_file_name(const char *file) -{ - char *dir, *base_versions; - int highest_backup; - - if (backup_type == simple) - return concat(file, simple_backup_suffix); - base_versions = concat(basename(file), ".~"); - if (base_versions == NULL) - return NULL; - dir = dirname(file); - if (dir == NULL) { - free(base_versions); - return NULL; - } - highest_backup = max_backup_version(base_versions, dir); - free(base_versions); - if (backup_type == numbered_existing && highest_backup == 0) - return concat(file, simple_backup_suffix); - return make_version_name(file, highest_backup + 1); -} - -/* - * Return the number of the highest-numbered backup file for file FILE in - * directory DIR. If there are no numbered backups of FILE in DIR, or an - * error occurs reading DIR, return 0. FILE should already have ".~" appended - * to it. - */ -static int -max_backup_version(const char *file, const char *dir) -{ - DIR *dirp; - struct dirent *dp; - int highest_version, this_version, file_name_length; - - dirp = opendir(dir); - if (dirp == NULL) - return 0; - - highest_version = 0; - file_name_length = strlen(file); - - while ((dp = readdir(dirp)) != NULL) { - if (dp->d_namlen <= file_name_length) - continue; - - this_version = version_number(file, dp->d_name, file_name_length); - if (this_version > highest_version) - highest_version = this_version; - } - closedir(dirp); - return highest_version; -} - -/* - * Return a string, allocated with malloc, containing "FILE.~VERSION~". - * Return 0 if out of memory. - */ -static char * -make_version_name(const char *file, int version) -{ - char *backup_name; - - if (asprintf(&backup_name, "%s.~%d~", file, version) == -1) - return NULL; - return backup_name; -} - -/* - * If BACKUP is a numbered backup of BASE, return its version number; - * otherwise return 0. BASE_LENGTH is the length of BASE. BASE should - * already have ".~" appended to it. - */ -static int -version_number(const char *base, const char *backup, int base_length) -{ - int version; - const char *p; - - version = 0; - if (!strncmp(base, backup, base_length) && ISDIGIT(backup[base_length])) { - for (p = &backup[base_length]; ISDIGIT(*p); ++p) - version = version * 10 + *p - '0'; - if (p[0] != '~' || p[1]) - version = 0; - } - return version; -} - -/* - * Return the newly-allocated concatenation of STR1 and STR2. If out of - * memory, return 0. - */ -static char * -concat(const char *str1, const char *str2) -{ - char *newstr; - - if (asprintf(&newstr, "%s%s", str1, str2) == -1) - return NULL; - return newstr; -} - -/* - * If ARG is an unambiguous match for an element of the null-terminated array - * OPTLIST, return the index in OPTLIST of the matched element, else -1 if it - * does not match any element or -2 if it is ambiguous (is a prefix of more - * than one element). - */ -static int -argmatch(const char *arg, const char **optlist) -{ - int i; /* Temporary index in OPTLIST. */ - size_t arglen; /* Length of ARG. */ - int matchind = -1; /* Index of first nonexact match. */ - int ambiguous = 0; /* If nonzero, multiple nonexact match(es). */ - - arglen = strlen(arg); - - /* Test all elements for either exact match or abbreviated matches. */ - for (i = 0; optlist[i]; i++) { - if (!strncmp(optlist[i], arg, arglen)) { - if (strlen(optlist[i]) == arglen) - /* Exact match found. */ - return i; - else if (matchind == -1) - /* First nonexact match found. */ - matchind = i; - else - /* Second nonexact match found. */ - ambiguous = 1; - } - } - if (ambiguous) - return -2; - else - return matchind; -} - -/* - * Error reporting for argmatch. KIND is a description of the type of entity - * that was being matched. VALUE is the invalid value that was given. PROBLEM - * is the return value from argmatch. - */ -static void -invalid_arg(const char *kind, const char *value, int problem) -{ - fprintf(stderr, "patch: "); - if (problem == -1) - fprintf(stderr, "invalid"); - else /* Assume -2. */ - fprintf(stderr, "ambiguous"); - fprintf(stderr, " %s `%s'\n", kind, value); -} - -static const char *backup_args[] = { - "never", "simple", "nil", "existing", "t", "numbered", 0 -}; - -static enum backup_type backup_types[] = { - simple, simple, numbered_existing, - numbered_existing, numbered, numbered -}; - -/* - * Return the type of backup indicated by VERSION. Unique abbreviations are - * accepted. - */ -enum backup_type -get_version(const char *version) -{ - int i; - - if (version == NULL || *version == '\0') - return numbered_existing; - i = argmatch(version, backup_args); - if (i >= 0) - return backup_types[i]; - invalid_arg("version control type", version, i); - exit(2); -} diff --git a/usr.bin/patch/backupfile.h b/usr.bin/patch/backupfile.h deleted file mode 100644 index 7c20ddb..0000000 --- a/usr.bin/patch/backupfile.h +++ /dev/null @@ -1,38 +0,0 @@ -/* $OpenBSD: backupfile.h,v 1.6 2003/07/28 18:35:36 otto Exp $ */ - -/* - * backupfile.h -- declarations for making Emacs style backup file names - * Copyright (C) 1990 Free Software Foundation, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * without restriction. - * - * 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. - * - */ - -/* When to make backup files. */ -enum backup_type { - /* Never make backups. */ - none, - - /* Make simple backups of every file. */ - simple, - - /* - * Make numbered backups of files that already have numbered backups, - * and simple backups of the others. - */ - numbered_existing, - - /* Make numbered backups of every file. */ - numbered -}; - -extern enum backup_type backup_type; -extern char *simple_backup_suffix; - -char *find_backup_file_name(const char *file); -enum backup_type get_version(const char *version); diff --git a/usr.bin/patch/pathnames.h b/usr.bin/patch/pathnames.h deleted file mode 100644 index 397e3fa..0000000 --- a/usr.bin/patch/pathnames.h +++ /dev/null @@ -1,11 +0,0 @@ -/* $OpenBSD: pathnames.h,v 1.1 2003/07/29 20:10:17 millert Exp $ */ - -/* - * Placed in the public domain by Todd C. Miller <Todd.Miller@courtesan.com> - * on July 29, 2003. - */ - -#include <paths.h> - -#define _PATH_ED "/bin/ed" -#define _PATH_MKDIR "/bin/mkdir" |