/*
- * Copyright (c) 1996, 1998-2001 Todd C. Miller <Todd.Miller@courtesan.com>
- * All rights reserved.
+ * Copyright (c) 1996, 1998-2005, 2007-2010
+ * Todd C. Miller <Todd.Miller@courtesan.com>
*
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
*
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * 4. Products derived from this software may not be called "Sudo" nor
- * may "Sudo" appear in their names without specific prior written
- * permission from the author.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
- * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
*/
/*
* Lock the sudoers file for safe editing (ala vipw) and check for parse errors.
*/
-#include "config.h"
+#define _SUDO_MAIN
+
+#ifdef __TANDEM
+# include <floss.h>
+#endif
+
+#include <config.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
-#include <sys/file.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#ifndef __TANDEM
+# include <sys/file.h>
+#endif
#include <sys/wait.h>
#include <stdio.h>
#ifdef STDC_HEADERS
#endif /* STDC_HEADERS */
#ifdef HAVE_STRING_H
# include <string.h>
-#else
-# ifdef HAVE_STRINGS_H
-# include <strings.h>
-# endif
#endif /* HAVE_STRING_H */
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif /* HAVE_STRINGS_H */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <ctype.h>
#include <pwd.h>
-#include <time.h>
+#include <grp.h>
#include <signal.h>
#include <errno.h>
#include <fcntl.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#if TIME_WITH_SYS_TIME
+# include <time.h>
+#endif
+#ifdef __STDC__
+# include <stdarg.h>
+#else
+# include <varargs.h>
+#endif
#include "sudo.h"
-#include "version.h"
+#include "interfaces.h"
+#include "parse.h"
+#include "redblack.h"
+#include <gram.h>
-#ifndef lint
-static const char rcsid[] = "$Sudo: visudo.c,v 1.146 2002/01/17 15:35:54 millert Exp $";
-#endif /* lint */
+struct sudoersfile {
+ struct sudoersfile *prev, *next;
+ char *path;
+ char *tpath;
+ int fd;
+ int modified;
+ int doedit;
+};
+TQ_DECLARE(sudoersfile);
/*
* Function prototypes
*/
-static void usage __P((void));
+static RETSIGTYPE quit __P((int));
+static char *get_args __P((char *));
+static char *get_editor __P((char **));
+static void get_hostname __P((void));
static char whatnow __P((void));
-static RETSIGTYPE Exit __P((int));
-static void setup_signals __P((void));
+static int check_aliases __P((int, int));
+static int check_syntax __P((char *, int, int));
+static int edit_sudoers __P((struct sudoersfile *, char *, char *, int));
+static int install_sudoers __P((struct sudoersfile *, int));
+static int print_unused __P((void *, void *));
+static int reparse_sudoers __P((char *, char *, int, int));
static int run_command __P((char *, char **));
-static int check_syntax __P((int));
-int command_matches __P((char *, char *, char *, char *));
-int addr_matches __P((char *));
-int hostname_matches __P((char *, char *, char *));
-int netgr_matches __P((char *, char *, char *, char *));
-int usergr_matches __P((char *, char *));
-void init_parser __P((void));
-void yyrestart __P((FILE *));
+static void print_selfref __P((char *, int, int, int));
+static void print_undefined __P((char *, int, int, int));
+static void setup_signals __P((void));
+static void usage __P((void)) __attribute__((__noreturn__));
+
+extern void yyerror __P((const char *));
+extern void yyrestart __P((FILE *));
/*
* External globals exported by the parser
*/
-extern FILE *yyin, *yyout;
-extern int errorlineno;
-extern int pedantic;
-extern int quiet;
-
+extern struct rbtree *aliases;
+extern FILE *yyin;
+extern char *sudoers, *errorfile;
+extern int errorlineno, parse_error;
/* For getopt(3) */
extern char *optarg;
extern int optind;
/*
* Globals
*/
+int Argc;
char **Argv;
-char *sudoers = _PATH_SUDOERS;
-char *stmp = _PATH_SUDOERS_TMP;
+int num_interfaces;
+struct interface *interfaces;
struct sudo_user sudo_user;
-int parse_error = FALSE;
+struct passwd *list_pw;
+static struct sudoersfile_list sudoerslist;
+static struct rbtree *alias_freelist;
int
main(argc, argv)
int argc;
char **argv;
{
- char buf[MAXPATHLEN*2]; /* buffer used for copying files */
- char *Editor; /* editor to use */
- char *UserEditor; /* editor user wants to use */
- char *EditorPath; /* colon-separated list of editors */
- char *av[4]; /* argument vector for run_command */
- int checkonly; /* only check existing file? */
- int sudoers_fd; /* sudoers file descriptor */
- int stmp_fd; /* stmp file descriptor */
- int n; /* length parameter */
- int ch; /* getopt char */
- time_t now; /* time now */
- struct stat stmp_sb, sudoers_sb; /* to check for changes */
-
- /* Warn about aliases that are used before being defined. */
- pedantic = 1;
+ struct sudoersfile *sp;
+ char *args, *editor, *sudoers_path;
+ int ch, checkonly, quiet, strict, oldperms;
+#if defined(SUDO_DEVEL) && defined(__OpenBSD__)
+ extern char *malloc_options;
+ malloc_options = "AFGJPR";
+#endif
- /*
- * Parse command line options
- */
Argv = argv;
+ if ((Argc = argc) < 1)
+ usage();
/*
* Arg handling.
*/
- checkonly = 0;
+ checkonly = oldperms = quiet = strict = FALSE;
+ sudoers_path = _PATH_SUDOERS;
while ((ch = getopt(argc, argv, "Vcf:sq")) != -1) {
switch (ch) {
case 'V':
- (void) printf("visudo version %s\n", version);
+ (void) printf("%s version %s\n", getprogname(), PACKAGE_VERSION);
exit(0);
case 'c':
checkonly++; /* check mode */
break;
case 'f':
- sudoers = optarg; /* sudoers file path */
- easprintf(&stmp, "%s.tmp", optarg);
+ sudoers_path = optarg; /* sudoers file path */
+ oldperms = TRUE;
break;
case 's':
- pedantic++; /* strict mode */
+ strict++; /* strict mode */
break;
case 'q':
quiet++; /* quiet mode */
if (argc)
usage();
+ sudo_setpwent();
+ sudo_setgrent();
+
/* Mock up a fake sudo_user struct. */
- user_host = user_shost = user_cmnd = "";
- if ((sudo_user.pw = getpwuid(getuid())) == NULL) {
- (void) fprintf(stderr, "%s: Can't find you in the passwd database.\n",
- Argv[0]);
- exit(1);
- }
+ user_cmnd = "";
+ if ((sudo_user.pw = sudo_getpwuid(getuid())) == NULL)
+ errorx(1, "you don't exist in the passwd database");
+ get_hostname();
/* Setup defaults data structures. */
init_defaults();
if (checkonly)
- exit(check_syntax(quiet));
+ exit(check_syntax(sudoers_path, quiet, strict));
/*
- * Open sudoers, lock it and stat it.
- * sudoers_fd must remain open throughout in order to hold the lock.
+ * Parse the existing sudoers file(s) in quiet mode to highlight any
+ * existing errors and to pull in editor and env_editor conf values.
*/
- sudoers_fd = open(sudoers, O_RDWR | O_CREAT, SUDOERS_MODE);
- if (sudoers_fd == -1) {
- (void) fprintf(stderr, "%s: %s: %s\n", Argv[0], sudoers,
- strerror(errno));
- exit(1);
- }
- if (!lock_file(sudoers_fd, SUDO_TLOCK)) {
- (void) fprintf(stderr, "%s: sudoers file busy, try again later.\n",
- Argv[0]);
- exit(1);
- }
-#ifdef HAVE_FSTAT
- if (fstat(sudoers_fd, &sudoers_sb) == -1) {
-#else
- if (stat(sudoers, &sudoers_sb) == -1) {
-#endif
- (void) fprintf(stderr, "%s: can't stat %s: %s\n",
- Argv[0], sudoers, strerror(errno));
- exit(1);
+ if ((yyin = open_sudoers(sudoers_path, TRUE, NULL)) == NULL) {
+ error(1, "%s", sudoers_path);
}
+ init_parser(sudoers_path, 0);
+ yyparse();
+ (void) update_defaults(SETDEF_GENERIC|SETDEF_HOST|SETDEF_USER);
- /*
- * Open sudoers temp file.
- */
- stmp_fd = open(stmp, O_WRONLY | O_CREAT | O_TRUNC, 0600);
- if (stmp_fd < 0) {
- (void) fprintf(stderr, "%s: %s: %s\n", Argv[0], stmp, strerror(errno));
- exit(1);
- }
+ editor = get_editor(&args);
- /* Install signal handlers to clean up stmp if we are killed. */
+ /* Install signal handlers to clean up temp files if we are killed. */
setup_signals();
- /* Copy sudoers -> stmp and reset the mtime */
- if (sudoers_sb.st_size) {
- while ((n = read(sudoers_fd, buf, sizeof(buf))) > 0)
- if (write(stmp_fd, buf, n) != n) {
- (void) fprintf(stderr, "%s: Write failed: %s\n", Argv[0],
- strerror(errno));
- Exit(-1);
- }
-
- (void) close(stmp_fd);
- (void) touch(stmp, sudoers_sb.st_mtime);
-
- /* Parse sudoers to pull in editor and env_editor conf values. */
- if ((yyin = fopen(stmp, "r"))) {
- yyout = stdout;
- init_parser();
- yyparse();
- parse_error = FALSE;
- yyrestart(yyin);
- fclose(yyin);
+ /* Edit the sudoers file(s) */
+ tq_foreach_fwd(&sudoerslist, sp) {
+ if (!sp->doedit)
+ continue;
+ if (sp != tq_first(&sudoerslist)) {
+ printf("press return to edit %s: ", sp->path);
+ while ((ch = getchar()) != EOF && ch != '\n')
+ continue;
}
- } else
- (void) close(stmp_fd);
+ edit_sudoers(sp, editor, args, -1);
+ }
- /*
- * Check EDITOR and VISUAL environment variables to see which editor
- * the user wants to use (we may not end up using it though).
- * If the path is not fully-qualified, make it so and check that
- * the specified executable actually exists.
- */
- if ((UserEditor = getenv("EDITOR")) == NULL || *UserEditor == '\0')
- UserEditor = getenv("VISUAL");
- if (UserEditor && *UserEditor == '\0')
- UserEditor = NULL;
- else if (UserEditor) {
- if (find_path(UserEditor, &Editor, getenv("PATH")) == FOUND) {
- UserEditor = Editor;
- } else {
- if (def_flag(I_ENV_EDITOR)) {
- /* If we are honoring $EDITOR this is a fatal error. */
- (void) fprintf(stderr,
- "%s: specified editor (%s) doesn't exist!\n",
- Argv[0], UserEditor);
- Exit(-1);
- } else {
- /* Otherwise, just ignore $EDITOR. */
- UserEditor = NULL;
- }
- }
+ /* Check edited files for a parse error and re-edit any that fail. */
+ reparse_sudoers(editor, args, strict, quiet);
+
+ /* Install the sudoers temp files. */
+ tq_foreach_fwd(&sudoerslist, sp) {
+ if (!sp->modified)
+ (void) unlink(sp->tpath);
+ else
+ (void) install_sudoers(sp, oldperms);
}
- /*
- * See if we can use the user's choice of editors either because
- * we allow any $EDITOR or because $EDITOR is in the allowable list.
- */
- Editor = EditorPath = NULL;
- if (def_flag(I_ENV_EDITOR) && UserEditor)
- Editor = UserEditor;
- else if (UserEditor) {
- struct stat editor_sb;
- struct stat user_editor_sb;
- char *base, *userbase;
+ exit(0);
+}
- if (stat(UserEditor, &user_editor_sb) != 0) {
- /* Should never happen since we already checked above. */
- (void) fprintf(stderr, "%s: unable to stat editor (%s): %s\n",
- Argv[0], UserEditor, strerror(errno));
- Exit(-1);
- }
- EditorPath = estrdup(def_str(I_EDITOR));
- Editor = strtok(EditorPath, ":");
- do {
- /*
- * Both Editor and UserEditor should be fully qualified but
- * check anyway...
- */
- if ((base = strrchr(Editor, '/')) == NULL)
- continue;
- if ((userbase = strrchr(UserEditor, '/')) == NULL) {
- Editor = NULL;
- break;
- }
- base++, userbase++;
+/*
+ * Edit each sudoers file.
+ * Returns TRUE on success, else FALSE.
+ */
+static int
+edit_sudoers(sp, editor, args, lineno)
+ struct sudoersfile *sp;
+ char *editor, *args;
+ int lineno;
+{
+ int tfd; /* sudoers temp file descriptor */
+ int modified; /* was the file modified? */
+ int ac; /* argument count */
+ char **av; /* argument vector for run_command */
+ char *cp; /* scratch char pointer */
+ char buf[PATH_MAX*2]; /* buffer used for copying files */
+ char linestr[64]; /* string version of lineno */
+ struct timeval tv, tv1, tv2; /* time before and after edit */
+ struct timeval orig_mtim; /* starting mtime of sudoers file */
+ off_t orig_size; /* starting size of sudoers file */
+ ssize_t nread; /* number of bytes read */
+ struct stat sb; /* stat buffer */
- /*
- * We compare the basenames first and then use stat to match
- * for sure.
- */
- if (strcmp(base, userbase) == 0) {
- if (stat(Editor, &editor_sb) == 0 && S_ISREG(editor_sb.st_mode)
- && (editor_sb.st_mode & 0000111) &&
- editor_sb.st_dev == user_editor_sb.st_dev &&
- editor_sb.st_ino == user_editor_sb.st_ino)
- break;
+#ifdef HAVE_FSTAT
+ if (fstat(sp->fd, &sb) == -1)
+#else
+ if (stat(sp->path, &sb) == -1)
+#endif
+ error(1, "can't stat %s", sp->path);
+ orig_size = sb.st_size;
+ mtim_get(&sb, &orig_mtim);
+
+ /* Create the temp file if needed and set timestamp. */
+ if (sp->tpath == NULL) {
+ easprintf(&sp->tpath, "%s.tmp", sp->path);
+ tfd = open(sp->tpath, O_WRONLY | O_CREAT | O_TRUNC, 0600);
+ if (tfd < 0)
+ error(1, "%s", sp->tpath);
+
+ /* Copy sp->path -> sp->tpath and reset the mtime. */
+ if (orig_size != 0) {
+ (void) lseek(sp->fd, (off_t)0, SEEK_SET);
+ while ((nread = read(sp->fd, buf, sizeof(buf))) > 0)
+ if (write(tfd, buf, nread) != nread)
+ error(1, "write error");
+
+ /* Add missing newline at EOF if needed. */
+ if (nread > 0 && buf[nread - 1] != '\n') {
+ buf[0] = '\n';
+ write(tfd, buf, 1);
}
- } while ((Editor = strtok(NULL, ":")));
+ }
+ (void) close(tfd);
+ }
+ (void) touch(-1, sp->tpath, &orig_mtim);
+
+ /* Find the length of the argument vector */
+ ac = 3 + (lineno > 0);
+ if (args) {
+ int wasblank;
+
+ ac++;
+ for (wasblank = FALSE, cp = args; *cp; cp++) {
+ if (isblank((unsigned char) *cp))
+ wasblank = TRUE;
+ else if (wasblank) {
+ wasblank = FALSE;
+ ac++;
+ }
+ }
}
- /*
- * Can't use $EDITOR, try each element of I_EDITOR until we
- * find one that exists, is regular, and is executable.
- */
- if (Editor == NULL || *Editor == '\0') {
- if (EditorPath != NULL)
- free(EditorPath);
- EditorPath = estrdup(def_str(I_EDITOR));
- Editor = strtok(EditorPath, ":");
- do {
- if (sudo_goodpath(Editor))
- break;
- } while ((Editor = strtok(NULL, ":")));
-
- /* Bleah, none of the editors existed! */
- if (Editor == NULL || *Editor == '\0') {
- (void) fprintf(stderr, "%s: no editor found (editor path = %s)\n",
- Argv[0], def_str(I_EDITOR));
- Exit(-1);
- }
+ /* Build up argument vector for the command */
+ av = emalloc2(ac, sizeof(char *));
+ if ((av[0] = strrchr(editor, '/')) != NULL)
+ av[0]++;
+ else
+ av[0] = editor;
+ ac = 1;
+ if (lineno > 0) {
+ (void) snprintf(linestr, sizeof(linestr), "+%d", lineno);
+ av[ac++] = linestr;
+ }
+ if (args) {
+ for ((cp = strtok(args, " \t")); cp; (cp = strtok(NULL, " \t")))
+ av[ac++] = cp;
}
+ av[ac++] = sp->tpath;
+ av[ac++] = NULL;
/*
- * Edit the temp file and parse it (for sanity checking)
+ * Do the edit:
+ * We cannot check the editor's exit value against 0 since
+ * XPG4 specifies that vi's exit value is a function of the
+ * number of errors during editing (?!?!).
*/
- do {
- char linestr[64];
-
- /* Build up argument vector for the command */
- if ((av[0] = strrchr(Editor, '/')) != NULL)
- av[0]++;
- else
- av[0] = Editor;
- n = 1;
- if (parse_error == TRUE) {
- (void) snprintf(linestr, sizeof(linestr), "+%d", errorlineno);
- av[n++] = linestr;
+ gettime(&tv1);
+ if (run_command(editor, av) != -1) {
+ gettime(&tv2);
+ /*
+ * Sanity checks.
+ */
+ if (stat(sp->tpath, &sb) < 0) {
+ warningx("cannot stat temporary file (%s), %s unchanged",
+ sp->tpath, sp->path);
+ return(FALSE);
+ }
+ if (sb.st_size == 0 && orig_size != 0) {
+ warningx("zero length temporary file (%s), %s unchanged",
+ sp->tpath, sp->path);
+ sp->modified = TRUE;
+ return(FALSE);
}
- av[n++] = stmp;
- av[n++] = NULL;
+ } else {
+ warningx("editor (%s) failed, %s unchanged", editor, sp->path);
+ return(FALSE);
+ }
+ /* Set modified bit if use changed the file. */
+ modified = TRUE;
+ mtim_get(&sb, &tv);
+ if (orig_size == sb.st_size && timevalcmp(&orig_mtim, &tv, ==)) {
/*
- * Do the edit:
- * We cannot check the editor's exit value against 0 since
- * XPG4 specifies that vi's exit value is a function of the
- * number of errors during editing (?!?!).
+ * If mtime and size match but the user spent no measurable
+ * time in the editor we can't tell if the file was changed.
*/
- now = time(NULL);
- if (run_command(Editor, av) != -1) {
- /*
- * Sanity checks.
- */
- if (stat(stmp, &stmp_sb) < 0) {
- (void) fprintf(stderr,
- "%s: Can't stat temporary file (%s), %s unchanged.\n",
- Argv[0], stmp, sudoers);
- Exit(-1);
- }
- if (stmp_sb.st_size == 0) {
- (void) fprintf(stderr,
- "%s: Zero length temporary file (%s), %s unchanged.\n",
- Argv[0], stmp, sudoers);
- Exit(-1);
- }
+ timevalsub(&tv1, &tv2);
+ if (timevalisset(&tv2))
+ modified = FALSE;
+ }
- /*
- * Passed sanity checks so reopen stmp file and check
- * for parse errors.
- */
- yyout = stdout;
- if (parse_error)
- yyin = freopen(stmp, "r", yyin);
- else
- yyin = fopen(stmp, "r");
- if (yyin == NULL) {
- (void) fprintf(stderr,
- "%s: Can't re-open temporary file (%s), %s unchanged.\n",
- Argv[0], stmp, sudoers);
- Exit(-1);
- }
+ /*
+ * If modified in this edit session, mark as modified.
+ */
+ if (modified)
+ sp->modified = modified;
+ else
+ warningx("%s unchanged", sp->tpath);
+
+ return(TRUE);
+}
- /* Clean slate for each parse */
- user_runas = NULL;
- init_defaults();
- init_parser();
+/*
+ * Parse sudoers after editing and re-edit any ones that caused a parse error.
+ * Returns TRUE on success, else FALSE.
+ */
+static int
+reparse_sudoers(editor, args, strict, quiet)
+ char *editor, *args;
+ int strict, quiet;
+{
+ struct sudoersfile *sp, *last;
+ FILE *fp;
+ int ch;
- /* Parse the sudoers file */
- if (yyparse() && parse_error != TRUE) {
- (void) fprintf(stderr,
- "%s: Failed to parse temporary file (%s), unknown error.\n",
- Argv[0], stmp);
+ /*
+ * Parse the edited sudoers files and do sanity checking
+ */
+ do {
+ sp = tq_first(&sudoerslist);
+ last = tq_last(&sudoerslist);
+ fp = fopen(sp->tpath, "r+");
+ if (fp == NULL)
+ errorx(1, "can't re-open temporary file (%s), %s unchanged.",
+ sp->tpath, sp->path);
+
+ /* Clean slate for each parse */
+ init_defaults();
+ init_parser(sp->path, quiet);
+
+ /* Parse the sudoers temp file */
+ yyrestart(fp);
+ if (yyparse() && !parse_error) {
+ warningx("unabled to parse temporary file (%s), unknown error",
+ sp->tpath);
+ parse_error = TRUE;
+ errorfile = sp->path;
+ }
+ fclose(yyin);
+ if (!parse_error) {
+ if (!update_defaults(SETDEF_GENERIC|SETDEF_HOST|SETDEF_USER) ||
+ check_aliases(strict, quiet) != 0) {
parse_error = TRUE;
+ errorfile = sp->path;
}
- } else {
- (void) fprintf(stderr,
- "%s: Editor (%s) failed, %s unchanged.\n", Argv[0],
- Editor, sudoers);
- Exit(-1);
}
/*
* Got an error, prompt the user for what to do now
*/
- if (parse_error == TRUE) {
+ if (parse_error) {
switch (whatnow()) {
case 'Q' : parse_error = FALSE; /* ignore parse error */
break;
- case 'x' : if (sudoers_sb.st_size == 0)
- unlink(sudoers);
- Exit(0);
+ case 'x' : cleanup(0);
+ exit(0);
break;
}
- yyrestart(yyin); /* reset lexer */
}
- } while (parse_error == TRUE);
+ if (parse_error) {
+ /* Edit file with the parse error */
+ tq_foreach_fwd(&sudoerslist, sp) {
+ if (errorfile == NULL || strcmp(sp->path, errorfile) == 0) {
+ edit_sudoers(sp, editor, args, errorlineno);
+ break;
+ }
+ }
+ if (sp == NULL)
+ errorx(1, "internal error, can't find %s in list!", sudoers);
+ }
- /*
- * If the user didn't change the temp file, just unlink it.
- */
- if (sudoers_sb.st_mtime != now && sudoers_sb.st_mtime == stmp_sb.st_mtime &&
- sudoers_sb.st_size == stmp_sb.st_size) {
- (void) fprintf(stderr, "%s: sudoers file unchanged.\n", Argv[0]);
- Exit(0);
- }
+ /* If any new #include directives were added, edit them too. */
+ for (sp = last->next; sp != NULL; sp = sp->next) {
+ printf("press return to edit %s: ", sp->path);
+ while ((ch = getchar()) != EOF && ch != '\n')
+ continue;
+ edit_sudoers(sp, editor, args, errorlineno);
+ }
+ } while (parse_error);
+
+ return(TRUE);
+}
+
+/*
+ * Set the owner and mode on a sudoers temp file and
+ * move it into place. Returns TRUE on success, else FALSE.
+ */
+static int
+install_sudoers(sp, oldperms)
+ struct sudoersfile *sp;
+ int oldperms;
+{
+ struct stat sb;
/*
* Change mode and ownership of temp file so when
- * we move it to sudoers things are kosher.
+ * we move it to sp->path things are kosher.
*/
- if (chown(stmp, SUDOERS_UID, SUDOERS_GID)) {
- (void) fprintf(stderr,
- "%s: Unable to set (uid, gid) of %s to (%d, %d): %s\n",
- Argv[0], stmp, SUDOERS_UID, SUDOERS_GID, strerror(errno));
- Exit(-1);
- }
- if (chmod(stmp, SUDOERS_MODE)) {
- (void) fprintf(stderr,
- "%s: Unable to change mode of %s to %o: %s\n",
- Argv[0], stmp, SUDOERS_MODE, strerror(errno));
- Exit(-1);
+ if (oldperms) {
+ /* Use perms of the existing file. */
+#ifdef HAVE_FSTAT
+ if (fstat(sp->fd, &sb) == -1)
+#else
+ if (stat(sp->path, &sb) == -1)
+#endif
+ error(1, "can't stat %s", sp->path);
+ (void) chown(sp->tpath, sb.st_uid, sb.st_gid);
+ (void) chmod(sp->tpath, sb.st_mode & 0777);
+ } else {
+ if (chown(sp->tpath, SUDOERS_UID, SUDOERS_GID) != 0) {
+ warning("unable to set (uid, gid) of %s to (%d, %d)",
+ sp->tpath, SUDOERS_UID, SUDOERS_GID);
+ return(FALSE);
+ }
+ if (chmod(sp->tpath, SUDOERS_MODE) != 0) {
+ warning("unable to change mode of %s to 0%o", sp->tpath,
+ SUDOERS_MODE);
+ return(FALSE);
+ }
}
/*
- * Now that we have a sane stmp file (parses ok) it needs to be
- * rename(2)'d to sudoers. If the rename(2) fails we try using
- * mv(1) in case stmp and sudoers are on different filesystems.
+ * Now that sp->tpath is sane (parses ok) it needs to be
+ * rename(2)'d to sp->path. If the rename(2) fails we try using
+ * mv(1) in case sp->tpath and sp->path are on different file systems.
*/
- if (rename(stmp, sudoers)) {
+ if (rename(sp->tpath, sp->path) == 0) {
+ efree(sp->tpath);
+ sp->tpath = NULL;
+ } else {
if (errno == EXDEV) {
- (void) fprintf(stderr,
- "%s: %s and %s not on the same filesystem, using mv to rename.\n",
- Argv[0], stmp, sudoers);
+ char *av[4];
+ warningx("%s and %s not on the same file system, using mv to rename",
+ sp->tpath, sp->path);
/* Build up argument vector for the command */
if ((av[0] = strrchr(_PATH_MV, '/')) != NULL)
av[0]++;
else
av[0] = _PATH_MV;
- av[1] = stmp;
- av[2] = sudoers;
+ av[1] = sp->tpath;
+ av[2] = sp->path;
av[3] = NULL;
/* And run it... */
if (run_command(_PATH_MV, av)) {
- (void) fprintf(stderr,
- "%s: Command failed: '%s %s %s', %s unchanged.\n",
- Argv[0], _PATH_MV, stmp, sudoers, sudoers);
- Exit(-1);
+ warningx("command failed: '%s %s %s', %s unchanged",
+ _PATH_MV, sp->tpath, sp->path, sp->path);
+ (void) unlink(sp->tpath);
+ efree(sp->tpath);
+ sp->tpath = NULL;
+ return(FALSE);
}
+ efree(sp->tpath);
+ sp->tpath = NULL;
} else {
- (void) fprintf(stderr, "%s: Error renaming %s, %s unchanged: %s\n",
- Argv[0], stmp, sudoers, strerror(errno));
- Exit(-1);
+ warning("error renaming %s, %s unchanged", sp->tpath, sp->path);
+ (void) unlink(sp->tpath);
+ return(FALSE);
}
}
-
- exit(0);
-}
-
-/*
- * Dummy *_matches routines.
- * These exist to allow us to use the same parser as sudo(8).
- */
-int
-command_matches(cmnd, cmnd_args, path, sudoers_args)
- char *cmnd;
- char *cmnd_args;
- char *path;
- char *sudoers_args;
-{
return(TRUE);
}
-int
-addr_matches(n)
- char *n;
-{
- return(TRUE);
-}
-
-int
-hostname_matches(s, l, p)
- char *s, *l, *p;
+/* STUB */
+void
+set_fqdn()
{
- return(TRUE);
+ return;
}
-int
-usergr_matches(g, u)
- char *g, *u;
+/* STUB */
+void
+init_envtables()
{
- return(TRUE);
+ return;
}
+/* STUB */
int
-netgr_matches(n, h, sh, u)
- char *n, *h, *sh, *u;
+user_is_exempt()
{
- return(TRUE);
+ return(FALSE);
}
+/* STUB */
void
-set_fqdn()
+sudo_setspent()
{
return;
}
-int
-user_is_exempt()
+/* STUB */
+void
+sudo_endspent()
{
- return(TRUE);
+ return;
}
-void
-init_envtables()
+char *
+sudo_getepw(pw)
+ const struct passwd *pw;
{
- return;
+ return (pw->pw_passwd);
}
/*
/*
* Setup signal handlers to cleanup nicely.
*/
+ zero_bytes(&sa, sizeof(sa));
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
- sa.sa_handler = Exit;
+ sa.sa_handler = quit;
(void) sigaction(SIGTERM, &sa, NULL);
(void) sigaction(SIGHUP, &sa, NULL);
(void) sigaction(SIGINT, &sa, NULL);
char **argv;
{
int status;
- pid_t pid;
- sigset_t set, oset;
-
- (void) sigemptyset(&set);
- (void) sigaddset(&set, SIGCHLD);
- (void) sigprocmask(SIG_BLOCK, &set, &oset);
+ pid_t pid, rv;
switch (pid = fork()) {
case -1:
- (void) fprintf(stderr,
- "%s: unable to run %s: %s\n", Argv[0], path, strerror(errno));
- Exit(-1);
+ error(1, "unable to run %s", path);
break; /* NOTREACHED */
case 0:
- (void) sigprocmask(SIG_SETMASK, &oset, NULL);
+ sudo_endpwent();
+ sudo_endgrent();
+ closefrom(STDERR_FILENO + 1);
execv(path, argv);
- (void) fprintf(stderr,
- "%s: unable to run %s: %s\n", Argv[0], path, strerror(errno));
+ warning("unable to run %s", path);
_exit(127);
break; /* NOTREACHED */
}
+ do {
#ifdef sudo_waitpid
- pid = sudo_waitpid(pid, &status, 0);
+ rv = sudo_waitpid(pid, &status, 0);
#else
- pid = wait(&status);
+ rv = wait(&status);
#endif
+ } while (rv == -1 && errno == EINTR);
- (void) sigprocmask(SIG_SETMASK, &oset, NULL);
-
- /* XXX - should use WEXITSTATUS() */
- return(pid == -1 ? -1 : (status >> 8));
+ if (rv == -1 || !WIFEXITED(status))
+ return(-1);
+ return(WEXITSTATUS(status));
}
static int
-check_syntax(quiet)
+check_syntax(sudoers_path, quiet, strict)
+ char *sudoers_path;
int quiet;
+ int strict;
{
+ struct stat sb;
+ int error;
- if ((yyin = fopen(sudoers, "r")) == NULL) {
+ if ((yyin = fopen(sudoers_path, "r")) == NULL) {
if (!quiet)
- (void) fprintf(stderr, "%s: unable to open %s: %s\n", Argv[0],
- sudoers, strerror(errno));
+ warning("unable to open %s", sudoers_path);
exit(1);
}
- yyout = stdout;
- init_parser();
- if (yyparse() && parse_error != TRUE) {
+ init_parser(sudoers_path, quiet);
+ if (yyparse() && !parse_error) {
if (!quiet)
- (void) fprintf(stderr,
- "%s: failed to parse %s file, unknown error.\n",
- Argv[0], sudoers);
+ warningx("failed to parse %s file, unknown error", sudoers_path);
parse_error = TRUE;
+ errorfile = sudoers_path;
}
- if (!quiet){
- if (parse_error)
- (void) printf("parse error in %s near line %d\n", sudoers,
- errorlineno);
- else
- (void) printf("%s file parsed OK\n", sudoers);
+ if (!parse_error && check_aliases(strict, quiet) != 0) {
+ parse_error = TRUE;
+ errorfile = sudoers_path;
+ }
+ error = parse_error;
+ if (!quiet) {
+ if (parse_error) {
+ if (errorlineno != -1)
+ (void) printf("parse error in %s near line %d\n", errorfile,
+ errorlineno);
+ else
+ (void) printf("parse error in %s\n", errorfile);
+ } else {
+ (void) printf("%s: parsed OK\n", sudoers_path);
+ }
+ }
+ /* Check mode and owner in strict mode. */
+#ifdef HAVE_FSTAT
+ if (strict && fstat(fileno(yyin), &sb) == 0)
+#else
+ if (strict && stat(sudoers_path, &sb) == 0)
+#endif
+ {
+ if (sb.st_uid != SUDOERS_UID || sb.st_gid != SUDOERS_GID) {
+ error = TRUE;
+ if (!quiet) {
+ fprintf(stderr, "%s: wrong owner (uid, gid) should be (%d, %d)\n",
+ sudoers_path, SUDOERS_UID, SUDOERS_GID);
+ }
+ }
+ if ((sb.st_mode & 07777) != SUDOERS_MODE) {
+ error = TRUE;
+ if (!quiet) {
+ fprintf(stderr, "%s: bad permissions, should be mode 0%o\n",
+ sudoers_path, SUDOERS_MODE);
+ }
+ }
}
- return(parse_error == TRUE);
+ return(error);
}
/*
- * Unlink the sudoers temp file (if it exists) and exit.
- * Used in place of a normal exit() and as a signal handler.
- * A positive parameter indicates we were called as a signal handler.
+ * Used to open (and lock) the initial sudoers file and to also open
+ * any subsequent files #included via a callback from the parser.
*/
-static RETSIGTYPE
-Exit(sig)
- int sig;
+FILE *
+open_sudoers(path, doedit, keepopen)
+ const char *path;
+ int doedit;
+ int *keepopen;
+{
+ struct sudoersfile *entry;
+ FILE *fp;
+
+ /* Check for existing entry */
+ tq_foreach_fwd(&sudoerslist, entry) {
+ if (strcmp(path, entry->path) == 0)
+ break;
+ }
+ if (entry == NULL) {
+ entry = emalloc(sizeof(*entry));
+ entry->path = estrdup(path);
+ entry->modified = 0;
+ entry->prev = entry;
+ entry->next = NULL;
+ entry->fd = open(entry->path, O_RDWR | O_CREAT, SUDOERS_MODE);
+ entry->tpath = NULL;
+ entry->doedit = doedit;
+ if (entry->fd == -1) {
+ warning("%s", entry->path);
+ efree(entry);
+ return(NULL);
+ }
+ if (!lock_file(entry->fd, SUDO_TLOCK))
+ errorx(1, "%s busy, try again later", entry->path);
+ if ((fp = fdopen(entry->fd, "r")) == NULL)
+ error(1, "%s", entry->path);
+ tq_append(&sudoerslist, entry);
+ } else {
+ /* Already exists, open .tmp version if there is one. */
+ if (entry->tpath != NULL) {
+ if ((fp = fopen(entry->tpath, "r")) == NULL)
+ error(1, "%s", entry->tpath);
+ } else {
+ if ((fp = fdopen(entry->fd, "r")) == NULL)
+ error(1, "%s", entry->path);
+ rewind(fp);
+ }
+ }
+ if (keepopen != NULL)
+ *keepopen = TRUE;
+ return(fp);
+}
+
+static char *
+get_editor(args)
+ char **args;
{
- char *emsg = " exiting due to signal.\n";
+ char *Editor, *EditorArgs, *EditorPath, *UserEditor, *UserEditorArgs;
+
+ /*
+ * Check VISUAL and EDITOR environment variables to see which editor
+ * the user wants to use (we may not end up using it though).
+ * If the path is not fully-qualified, make it so and check that
+ * the specified executable actually exists.
+ */
+ UserEditorArgs = NULL;
+ if ((UserEditor = getenv("VISUAL")) == NULL || *UserEditor == '\0')
+ UserEditor = getenv("EDITOR");
+ if (UserEditor && *UserEditor == '\0')
+ UserEditor = NULL;
+ else if (UserEditor) {
+ UserEditorArgs = get_args(UserEditor);
+ if (find_path(UserEditor, &Editor, NULL, getenv("PATH"), 0) == FOUND) {
+ UserEditor = Editor;
+ } else {
+ if (def_env_editor) {
+ /* If we are honoring $EDITOR this is a fatal error. */
+ errorx(1, "specified editor (%s) doesn't exist!", UserEditor);
+ } else {
+ /* Otherwise, just ignore $EDITOR. */
+ UserEditor = NULL;
+ }
+ }
+ }
+
+ /*
+ * See if we can use the user's choice of editors either because
+ * we allow any $EDITOR or because $EDITOR is in the allowable list.
+ */
+ Editor = EditorArgs = EditorPath = NULL;
+ if (def_env_editor && UserEditor) {
+ Editor = UserEditor;
+ EditorArgs = UserEditorArgs;
+ } else if (UserEditor) {
+ struct stat editor_sb;
+ struct stat user_editor_sb;
+ char *base, *userbase;
- (void) unlink(stmp);
+ if (stat(UserEditor, &user_editor_sb) != 0) {
+ /* Should never happen since we already checked above. */
+ error(1, "unable to stat editor (%s)", UserEditor);
+ }
+ EditorPath = estrdup(def_editor);
+ Editor = strtok(EditorPath, ":");
+ do {
+ EditorArgs = get_args(Editor);
+ /*
+ * Both Editor and UserEditor should be fully qualified but
+ * check anyway...
+ */
+ if ((base = strrchr(Editor, '/')) == NULL)
+ continue;
+ if ((userbase = strrchr(UserEditor, '/')) == NULL) {
+ Editor = NULL;
+ break;
+ }
+ base++, userbase++;
- if (sig > 0) {
- write(STDERR_FILENO, Argv[0], strlen(Argv[0]));
- write(STDERR_FILENO, emsg, sizeof(emsg) - 1);
- _exit(-sig);
+ /*
+ * We compare the basenames first and then use stat to match
+ * for sure.
+ */
+ if (strcmp(base, userbase) == 0) {
+ if (stat(Editor, &editor_sb) == 0 && S_ISREG(editor_sb.st_mode)
+ && (editor_sb.st_mode & 0000111) &&
+ editor_sb.st_dev == user_editor_sb.st_dev &&
+ editor_sb.st_ino == user_editor_sb.st_ino)
+ break;
+ }
+ } while ((Editor = strtok(NULL, ":")));
}
- exit(-sig);
+
+ /*
+ * Can't use $EDITOR, try each element of def_editor until we
+ * find one that exists, is regular, and is executable.
+ */
+ if (Editor == NULL || *Editor == '\0') {
+ efree(EditorPath);
+ EditorPath = estrdup(def_editor);
+ Editor = strtok(EditorPath, ":");
+ do {
+ EditorArgs = get_args(Editor);
+ if (sudo_goodpath(Editor, NULL))
+ break;
+ } while ((Editor = strtok(NULL, ":")));
+
+ /* Bleah, none of the editors existed! */
+ if (Editor == NULL || *Editor == '\0')
+ errorx(1, "no editor found (editor path = %s)", def_editor);
+ }
+ *args = EditorArgs;
+ return(Editor);
+}
+
+/*
+ * Split out any command line arguments and return them.
+ */
+static char *
+get_args(cmnd)
+ char *cmnd;
+{
+ char *args;
+
+ args = cmnd;
+ while (*args && !isblank((unsigned char) *args))
+ args++;
+ if (*args) {
+ *args++ = '\0';
+ while (*args && isblank((unsigned char) *args))
+ args++;
+ }
+ return(*args ? args : NULL);
+}
+
+/*
+ * Look up the hostname and set user_host and user_shost.
+ */
+static void
+get_hostname()
+{
+ char *p, thost[MAXHOSTNAMELEN + 1];
+
+ if (gethostname(thost, sizeof(thost)) != 0) {
+ user_host = user_shost = "localhost";
+ return;
+ }
+ thost[sizeof(thost) - 1] = '\0';
+ user_host = estrdup(thost);
+
+ if ((p = strchr(user_host, '.'))) {
+ *p = '\0';
+ user_shost = estrdup(user_host);
+ *p = '.';
+ } else {
+ user_shost = user_host;
+ }
+}
+
+static int
+alias_remove_recursive(name, type, strict, quiet)
+ char *name;
+ int type;
+ int strict;
+ int quiet;
+{
+ struct member *m;
+ struct alias *a;
+ int error = 0;
+
+ if ((a = alias_find(name, type)) != NULL) {
+ tq_foreach_fwd(&a->members, m) {
+ if (m->type == ALIAS) {
+ if (strcmp(name, m->name) == 0) {
+ print_selfref(m->name, type, strict, quiet);
+ error = 1;
+ } else {
+ if (!alias_remove_recursive(m->name, type, strict, quiet))
+ error = 1;
+ }
+ }
+ }
+ }
+ alias_seqno++;
+ a = alias_remove(name, type);
+ if (a)
+ rbinsert(alias_freelist, a);
+ return(error);
+}
+
+/*
+ * Iterate through the sudoers datastructures looking for undefined
+ * aliases or unused aliases.
+ */
+static int
+check_aliases(strict, quiet)
+ int strict;
+ int quiet;
+{
+ struct cmndspec *cs;
+ struct member *m, *binding;
+ struct privilege *priv;
+ struct userspec *us;
+ struct defaults *d;
+ int atype, error = 0;
+
+ alias_freelist = rbcreate(alias_compare);
+
+ /* Forward check. */
+ tq_foreach_fwd(&userspecs, us) {
+ tq_foreach_fwd(&us->users, m) {
+ if (m->type == ALIAS) {
+ alias_seqno++;
+ if (alias_find(m->name, USERALIAS) == NULL) {
+ print_undefined(m->name, USERALIAS, strict, quiet);
+ error++;
+ }
+ }
+ }
+ tq_foreach_fwd(&us->privileges, priv) {
+ tq_foreach_fwd(&priv->hostlist, m) {
+ if (m->type == ALIAS) {
+ alias_seqno++;
+ if (alias_find(m->name, HOSTALIAS) == NULL) {
+ print_undefined(m->name, HOSTALIAS, strict, quiet);
+ error++;
+ }
+ }
+ }
+ tq_foreach_fwd(&priv->cmndlist, cs) {
+ tq_foreach_fwd(&cs->runasuserlist, m) {
+ if (m->type == ALIAS) {
+ alias_seqno++;
+ if (alias_find(m->name, RUNASALIAS) == NULL) {
+ print_undefined(m->name, RUNASALIAS, strict, quiet);
+ error++;
+ }
+ }
+ }
+ if ((m = cs->cmnd)->type == ALIAS) {
+ alias_seqno++;
+ if (alias_find(m->name, CMNDALIAS) == NULL) {
+ print_undefined(m->name, CMNDALIAS, strict, quiet);
+ error++;
+ }
+ }
+ }
+ }
+ }
+
+ /* Reverse check (destructive) */
+ tq_foreach_fwd(&userspecs, us) {
+ tq_foreach_fwd(&us->users, m) {
+ if (m->type == ALIAS) {
+ if (!alias_remove_recursive(m->name, USERALIAS, strict, quiet))
+ error++;
+ }
+ }
+ tq_foreach_fwd(&us->privileges, priv) {
+ tq_foreach_fwd(&priv->hostlist, m) {
+ if (m->type == ALIAS)
+ if (!alias_remove_recursive(m->name, HOSTALIAS, strict,
+ quiet))
+ error++;
+ }
+ tq_foreach_fwd(&priv->cmndlist, cs) {
+ tq_foreach_fwd(&cs->runasuserlist, m) {
+ if (m->type == ALIAS)
+ if (!alias_remove_recursive(m->name, RUNASALIAS,
+ strict, quiet))
+ error++;
+ }
+ if ((m = cs->cmnd)->type == ALIAS)
+ if (!alias_remove_recursive(m->name, CMNDALIAS, strict,
+ quiet))
+ error++;
+ }
+ }
+ }
+ tq_foreach_fwd(&defaults, d) {
+ switch (d->type) {
+ case DEFAULTS_HOST:
+ atype = HOSTALIAS;
+ break;
+ case DEFAULTS_USER:
+ atype = USERALIAS;
+ break;
+ case DEFAULTS_RUNAS:
+ atype = RUNASALIAS;
+ break;
+ case DEFAULTS_CMND:
+ atype = CMNDALIAS;
+ break;
+ default:
+ continue; /* not an alias */
+ }
+ tq_foreach_fwd(&d->binding, binding) {
+ for (m = binding; m != NULL; m = m->next) {
+ if (m->type == ALIAS)
+ if (!alias_remove_recursive(m->name, atype, strict, quiet))
+ error++;
+ }
+ }
+ }
+ rbdestroy(alias_freelist, alias_free);
+
+ /* If all aliases were referenced we will have an empty tree. */
+ if (!no_aliases() && !quiet)
+ alias_apply(print_unused, strict ? "Error" : "Warning");
+
+ return (strict ? error : 0);
+}
+
+static void
+print_undefined(name, type, strict, quiet)
+ char *name;
+ int type;
+ int strict;
+ int quiet;
+{
+ if (!quiet) {
+ warningx("%s: %s_Alias `%s' referenced but not defined",
+ strict ? "Error" : "Warning",
+ type == HOSTALIAS ? "Host" : type == CMNDALIAS ? "Cmnd" :
+ type == USERALIAS ? "User" : type == RUNASALIAS ? "Runas" :
+ "Unknown", name);
+ }
+}
+
+static void
+print_selfref(name, type, strict, quiet)
+ char *name;
+ int type;
+ int strict;
+ int quiet;
+{
+ if (!quiet) {
+ warningx("%s: %s_Alias `%s' references self",
+ strict ? "Error" : "Warning",
+ type == HOSTALIAS ? "Host" : type == CMNDALIAS ? "Cmnd" :
+ type == USERALIAS ? "User" : type == RUNASALIAS ? "Runas" :
+ "Unknown", name);
+ }
+}
+
+static int
+print_unused(v1, v2)
+ void *v1;
+ void *v2;
+{
+ struct alias *a = (struct alias *)v1;
+ char *prefix = (char *)v2;
+
+ warningx("%s: unused %s_Alias %s", prefix,
+ a->type == HOSTALIAS ? "Host" : a->type == CMNDALIAS ? "Cmnd" :
+ a->type == USERALIAS ? "User" : a->type == RUNASALIAS ? "Runas" :
+ "Unknown", a->name);
+ return(0);
+}
+
+/*
+ * Unlink any sudoers temp files that remain.
+ */
+void
+cleanup(gotsignal)
+ int gotsignal;
+{
+ struct sudoersfile *sp;
+
+ tq_foreach_fwd(&sudoerslist, sp) {
+ if (sp->tpath != NULL)
+ (void) unlink(sp->tpath);
+ }
+ if (!gotsignal) {
+ sudo_endpwent();
+ sudo_endgrent();
+ }
+}
+
+/*
+ * Unlink sudoers temp files (if any) and exit.
+ */
+static RETSIGTYPE
+quit(signo)
+ int signo;
+{
+ cleanup(signo);
+#define emsg " exiting due to signal.\n"
+ write(STDERR_FILENO, getprogname(), strlen(getprogname()));
+ write(STDERR_FILENO, emsg, sizeof(emsg) - 1);
+ _exit(signo);
}
static void
usage()
{
- (void) fprintf(stderr, "usage: %s [-c] [-f sudoers] [-q] [-s] [-V]\n",
- Argv[0]);
+ (void) fprintf(stderr, "usage: %s [-c] [-q] [-s] [-V] [-f sudoers]\n",
+ getprogname());
exit(1);
}
projects / debian / sudo / blobdiff