--- /dev/null
+/*
+ * Copyright (c) 2009-2011 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/param.h>
+#ifdef HAVE_SYS_SYSMACROS_H
+# include <sys/sysmacros.h>
+#endif
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <sys/ioctl.h>
+#ifdef HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif /* HAVE_SYS_SELECT_H */
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+# endif
+#endif /* STDC_HEADERS */
+#ifdef HAVE_STRING_H
+# if defined(HAVE_MEMORY_H) && !defined(STDC_HEADERS)
+# include <memory.h>
+# endif
+# include <string.h>
+#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 */
+#if TIME_WITH_SYS_TIME
+# include <time.h>
+#endif
+#ifndef HAVE_TIMESPEC
+# include "compat/timespec.h"
+#endif
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <fcntl.h>
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+# define NAMLEN(dirent) strlen((dirent)->d_name)
+#else
+# define dirent direct
+# define NAMLEN(dirent) (dirent)->d_namlen
+# ifdef HAVE_SYS_NDIR_H
+# include <sys/ndir.h>
+# endif
+# ifdef HAVE_SYS_DIR_H
+# include <sys/dir.h>
+# endif
+# ifdef HAVE_NDIR_H
+# include <ndir.h>
+# endif
+#endif
+#ifdef HAVE_REGCOMP
+# include <regex.h>
+#endif
+#ifdef HAVE_ZLIB_H
+# include <zlib.h>
+#endif
+#ifdef HAVE_SETLOCALE
+# include <locale.h>
+#endif
+#include <signal.h>
+
+#include <pathnames.h>
+
+#include "missing.h"
+#include "alloc.h"
+#include "error.h"
+
+#ifndef LINE_MAX
+# define LINE_MAX 2048
+#endif
+
+/* Must match the defines in iolog.c */
+#define IOFD_STDIN 0
+#define IOFD_STDOUT 1
+#define IOFD_STDERR 2
+#define IOFD_TTYIN 3
+#define IOFD_TTYOUT 4
+#define IOFD_TIMING 5
+#define IOFD_MAX 6
+
+/* Bitmap of iofds to be replayed */
+unsigned int replay_filter = (1 << IOFD_STDOUT) | (1 << IOFD_STDERR) |
+ (1 << IOFD_TTYOUT);
+
+/* For getopt(3) */
+extern char *optarg;
+extern int optind;
+
+union io_fd {
+ FILE *f;
+#ifdef HAVE_ZLIB_H
+ gzFile g;
+#endif
+ void *v;
+};
+
+/*
+ * Info present in the I/O log file
+ */
+struct log_info {
+ char *cwd;
+ char *user;
+ char *runas_user;
+ char *runas_group;
+ char *tty;
+ char *cmd;
+ time_t tstamp;
+};
+
+/*
+ * Handle expressions like:
+ * ( user millert or user root ) and tty console and command /bin/sh
+ */
+struct search_node {
+ struct search_node *next;
+#define ST_EXPR 1
+#define ST_TTY 2
+#define ST_USER 3
+#define ST_PATTERN 4
+#define ST_RUNASUSER 5
+#define ST_RUNASGROUP 6
+#define ST_FROMDATE 7
+#define ST_TODATE 8
+#define ST_CWD 9
+ char type;
+ char negated;
+ char or;
+ char pad;
+ union {
+#ifdef HAVE_REGCOMP
+ regex_t cmdre;
+#endif
+ time_t tstamp;
+ char *cwd;
+ char *tty;
+ char *user;
+ char *pattern;
+ char *runas_group;
+ char *runas_user;
+ struct search_node *expr;
+ void *ptr;
+ } u;
+} *search_expr;
+
+#define STACK_NODE_SIZE 32
+static struct search_node *node_stack[32];
+static int stack_top;
+
+static const char *session_dir = _PATH_SUDO_IO_LOGDIR;
+
+static union io_fd io_fds[IOFD_MAX];
+static const char *io_fnames[IOFD_MAX] = {
+ "/stdin",
+ "/stdout",
+ "/stderr",
+ "/ttyin",
+ "/ttyout",
+ "/timing"
+};
+
+extern time_t get_date(char *);
+extern char *get_timestr(time_t, int);
+extern int term_raw(int, int);
+extern int term_restore(int, int);
+extern void zero_bytes(volatile void *, size_t);
+void cleanup(int);
+
+static int list_sessions(int, char **, const char *, const char *, const char *);
+static int parse_expr(struct search_node **, char **);
+static void check_input(int, double *);
+static void delay(double);
+static void help(void) __attribute__((__noreturn__));
+static void usage(int);
+static void *open_io_fd(char *pathbuf, int len, const char *suffix);
+static int parse_timing(const char *buf, const char *decimal, int *idx, double *seconds, size_t *nbytes);
+
+#ifdef HAVE_REGCOMP
+# define REGEX_T regex_t
+#else
+# define REGEX_T char
+#endif
+
+#define VALID_ID(s) (isalnum((unsigned char)(s)[0]) && \
+ isalnum((unsigned char)(s)[1]) && isalnum((unsigned char)(s)[2]) && \
+ isalnum((unsigned char)(s)[3]) && isalnum((unsigned char)(s)[4]) && \
+ isalnum((unsigned char)(s)[5]) && (s)[6] == '\0')
+
+#define IS_IDLOG(s) ( \
+ isalnum((unsigned char)(s)[0]) && isalnum((unsigned char)(s)[1]) && \
+ (s)[2] == '/' && \
+ isalnum((unsigned char)(s)[3]) && isalnum((unsigned char)(s)[4]) && \
+ (s)[5] == '/' && \
+ isalnum((unsigned char)(s)[6]) && isalnum((unsigned char)(s)[7]) && \
+ (s)[8] == '/' && (s)[9] == 'l' && (s)[10] == 'o' && (s)[11] == 'g' && \
+ (s)[9] == '\0')
+
+int
+main(int argc, char *argv[])
+{
+ int ch, idx, plen, nready, interactive = 0, listonly = 0;
+ const char *id, *user = NULL, *pattern = NULL, *tty = NULL, *decimal = ".";
+ char path[PATH_MAX], buf[LINE_MAX], *cp, *ep;
+ double seconds, to_wait, speed = 1.0, max_wait = 0;
+ FILE *lfile;
+ fd_set *fdsw;
+ sigaction_t sa;
+ size_t len, nbytes, nread, off;
+ ssize_t nwritten;
+
+#if !defined(HAVE_GETPROGNAME) && !defined(HAVE___PROGNAME)
+ setprogname(argc > 0 ? argv[0] : "sudoreplay");
+#endif
+
+#ifdef HAVE_SETLOCALE
+ setlocale(LC_ALL, "");
+ decimal = localeconv()->decimal_point;
+#endif
+
+ while ((ch = getopt(argc, argv, "d:f:hlm:s:V")) != -1) {
+ switch(ch) {
+ case 'd':
+ session_dir = optarg;
+ break;
+ case 'f':
+ /* Set the replay filter. */
+ replay_filter = 0;
+ for (cp = strtok(optarg, ","); cp; cp = strtok(NULL, ",")) {
+ if (strcmp(cp, "stdout") == 0)
+ SET(replay_filter, 1 << IOFD_STDOUT);
+ else if (strcmp(cp, "stderr") == 0)
+ SET(replay_filter, 1 << IOFD_STDERR);
+ else if (strcmp(cp, "ttyout") == 0)
+ SET(replay_filter, 1 << IOFD_TTYOUT);
+ else
+ errorx(1, "invalid filter option: %s", optarg);
+ }
+ break;
+ case 'h':
+ help();
+ /* NOTREACHED */
+ case 'l':
+ listonly = 1;
+ break;
+ case 'm':
+ errno = 0;
+ max_wait = strtod(optarg, &ep);
+ if (*ep != '\0' || errno != 0)
+ errorx(1, "invalid max wait: %s", optarg);
+ break;
+ case 's':
+ errno = 0;
+ speed = strtod(optarg, &ep);
+ if (*ep != '\0' || errno != 0)
+ errorx(1, "invalid speed factor: %s", optarg);
+ break;
+ case 'V':
+ (void) printf("%s version %s\n", getprogname(), PACKAGE_VERSION);
+ exit(0);
+ default:
+ usage(1);
+ /* NOTREACHED */
+ }
+
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (listonly)
+ exit(list_sessions(argc, argv, pattern, user, tty));
+
+ if (argc != 1)
+ usage(1);
+
+ /* 6 digit ID in base 36, e.g. 01G712AB or free-form name */
+ id = argv[0];
+ if (VALID_ID(id)) {
+ plen = snprintf(path, sizeof(path), "%s/%.2s/%.2s/%.2s/timing",
+ session_dir, id, &id[2], &id[4]);
+ if (plen <= 0 || plen >= sizeof(path))
+ errorx(1, "%s/%.2s/%.2s/%.2s/%.2s/timing: %s", session_dir,
+ id, &id[2], &id[4], strerror(ENAMETOOLONG));
+ } else {
+ plen = snprintf(path, sizeof(path), "%s/%s/timing",
+ session_dir, id);
+ if (plen <= 0 || plen >= sizeof(path))
+ errorx(1, "%s/%s/timing: %s", session_dir,
+ id, strerror(ENAMETOOLONG));
+ }
+ plen -= 7;
+
+ /* Open files for replay, applying replay filter for the -f flag. */
+ for (idx = 0; idx < IOFD_MAX; idx++) {
+ if (ISSET(replay_filter, 1 << idx) || idx == IOFD_TIMING) {
+ io_fds[idx].v = open_io_fd(path, plen, io_fnames[idx]);
+ if (io_fds[idx].v == NULL)
+ error(1, "unable to open %s", path);
+ }
+ }
+
+ /* Read log file. */
+ path[plen] = '\0';
+ strlcat(path, "/log", sizeof(path));
+ lfile = fopen(path, "r");
+ if (lfile == NULL)
+ error(1, "unable to open %s", path);
+ cp = NULL;
+ len = 0;
+ /* Pull out command (third line). */
+ if (getline(&cp, &len, lfile) == -1 ||
+ getline(&cp, &len, lfile) == -1 ||
+ getline(&cp, &len, lfile) == -1) {
+ errorx(1, "invalid log file %s", path);
+ }
+ printf("Replaying sudo session: %s", cp);
+ free(cp);
+ fclose(lfile);
+
+ fflush(stdout);
+ zero_bytes(&sa, sizeof(sa));
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = SA_RESETHAND;
+ sa.sa_handler = cleanup;
+ (void) sigaction(SIGINT, &sa, NULL);
+ (void) sigaction(SIGKILL, &sa, NULL);
+ (void) sigaction(SIGTERM, &sa, NULL);
+ (void) sigaction(SIGHUP, &sa, NULL);
+ sa.sa_flags = SA_RESTART;
+ sa.sa_handler = SIG_IGN;
+ (void) sigaction(SIGTSTP, &sa, NULL);
+ (void) sigaction(SIGQUIT, &sa, NULL);
+
+ /* XXX - read user input from /dev/tty and set STDOUT to raw if not a pipe */
+ /* Set stdin to raw mode if it is a tty */
+ interactive = isatty(STDIN_FILENO);
+ if (interactive) {
+ ch = fcntl(STDIN_FILENO, F_GETFL, 0);
+ if (ch != -1)
+ (void) fcntl(STDIN_FILENO, F_SETFL, ch | O_NONBLOCK);
+ if (!term_raw(STDIN_FILENO, 1))
+ error(1, "cannot set tty to raw mode");
+ }
+ fdsw = (fd_set *)emalloc2(howmany(STDOUT_FILENO + 1, NFDBITS),
+ sizeof(fd_mask));
+
+ /*
+ * Timing file consists of line of the format: "%f %d\n"
+ */
+#ifdef HAVE_ZLIB_H
+ while (gzgets(io_fds[IOFD_TIMING].g, buf, sizeof(buf)) != NULL) {
+#else
+ while (fgets(buf, sizeof(buf), io_fds[IOFD_TIMING].f) != NULL) {
+#endif
+ if (!parse_timing(buf, decimal, &idx, &seconds, &nbytes))
+ errorx(1, "invalid timing file line: %s", buf);
+
+ if (interactive)
+ check_input(STDIN_FILENO, &speed);
+
+ /* Adjust delay using speed factor and clamp to max_wait */
+ to_wait = seconds / speed;
+ if (max_wait && to_wait > max_wait)
+ to_wait = max_wait;
+ delay(to_wait);
+
+ /* Even if we are not relaying, we still have to delay. */
+ if (io_fds[idx].v == NULL)
+ continue;
+
+ /* All output is sent to stdout. */
+ while (nbytes != 0) {
+ if (nbytes > sizeof(buf))
+ len = sizeof(buf);
+ else
+ len = nbytes;
+#ifdef HAVE_ZLIB_H
+ nread = gzread(io_fds[idx].g, buf, len);
+#else
+ nread = fread(buf, 1, len, io_fds[idx].f);
+#endif
+ nbytes -= nread;
+ off = 0;
+ do {
+ /* no stdio, must be unbuffered */
+ nwritten = write(STDOUT_FILENO, buf + off, nread - off);
+ if (nwritten == -1) {
+ if (errno == EINTR)
+ continue;
+ if (errno == EAGAIN) {
+ FD_SET(STDOUT_FILENO, fdsw);
+ do {
+ nready = select(STDOUT_FILENO + 1, NULL, fdsw, NULL, NULL);
+ } while (nready == -1 && errno == EINTR);
+ if (nready == 1)
+ continue;
+ }
+ error(1, "writing to standard output");
+ }
+ off += nwritten;
+ } while (nread > off);
+ }
+ }
+ term_restore(STDIN_FILENO, 1);
+ exit(0);
+}
+
+static void
+delay(double secs)
+{
+ struct timespec ts, rts;
+ int rval;
+
+ /*
+ * Typical max resolution is 1/HZ but we can't portably check that.
+ * If the interval is small enough, just ignore it.
+ */
+ if (secs < 0.0001)
+ return;
+
+ rts.tv_sec = secs;
+ rts.tv_nsec = (secs - (double) rts.tv_sec) * 1000000000.0;
+ do {
+ memcpy(&ts, &rts, sizeof(ts));
+ rval = nanosleep(&ts, &rts);
+ } while (rval == -1 && errno == EINTR);
+ if (rval == -1)
+ error(1, "nanosleep: tv_sec %ld, tv_nsec %ld", ts.tv_sec, ts.tv_nsec);
+}
+
+static void *
+open_io_fd(char *path, int len, const char *suffix)
+{
+ path[len] = '\0';
+ strlcat(path, suffix, PATH_MAX);
+
+#ifdef HAVE_ZLIB_H
+ return gzopen(path, "r");
+#else
+ return fopen(path, "r");
+#endif
+}
+
+/*
+ * Build expression list from search args
+ */
+static int
+parse_expr(struct search_node **headp, char *argv[])
+{
+ struct search_node *sn, *newsn;
+ char or = 0, not = 0, type, **av;
+
+ sn = *headp;
+ for (av = argv; *av; av++) {
+ switch (av[0][0]) {
+ case 'a': /* and (ignore) */
+ if (strncmp(*av, "and", strlen(*av)) != 0)
+ goto bad;
+ continue;
+ case 'o': /* or */
+ if (strncmp(*av, "or", strlen(*av)) != 0)
+ goto bad;
+ or = 1;
+ continue;
+ case '!': /* negate */
+ if (av[0][1] != '\0')
+ goto bad;
+ not = 1;
+ continue;
+ case 'c': /* command */
+ if (av[0][1] == '\0')
+ errorx(1, "ambiguous expression \"%s\"", *av);
+ if (strncmp(*av, "cwd", strlen(*av)) == 0)
+ type = ST_CWD;
+ else if (strncmp(*av, "command", strlen(*av)) == 0)
+ type = ST_PATTERN;
+ else
+ goto bad;
+ break;
+ case 'f': /* from date */
+ if (strncmp(*av, "fromdate", strlen(*av)) != 0)
+ goto bad;
+ type = ST_FROMDATE;
+ break;
+ case 'g': /* runas group */
+ if (strncmp(*av, "group", strlen(*av)) != 0)
+ goto bad;
+ type = ST_RUNASGROUP;
+ break;
+ case 'r': /* runas user */
+ if (strncmp(*av, "runas", strlen(*av)) != 0)
+ goto bad;
+ type = ST_RUNASUSER;
+ break;
+ case 't': /* tty or to date */
+ if (av[0][1] == '\0')
+ errorx(1, "ambiguous expression \"%s\"", *av);
+ if (strncmp(*av, "todate", strlen(*av)) == 0)
+ type = ST_TODATE;
+ else if (strncmp(*av, "tty", strlen(*av)) == 0)
+ type = ST_TTY;
+ else
+ goto bad;
+ break;
+ case 'u': /* user */
+ if (strncmp(*av, "user", strlen(*av)) != 0)
+ goto bad;
+ type = ST_USER;
+ break;
+ case '(': /* start sub-expression */
+ if (av[0][1] != '\0')
+ goto bad;
+ if (stack_top + 1 == STACK_NODE_SIZE) {
+ errorx(1, "too many parenthesized expressions, max %d",
+ STACK_NODE_SIZE);
+ }
+ node_stack[stack_top++] = sn;
+ type = ST_EXPR;
+ break;
+ case ')': /* end sub-expression */
+ if (av[0][1] != '\0')
+ goto bad;
+ /* pop */
+ if (--stack_top < 0)
+ errorx(1, "unmatched ')' in expression");
+ if (node_stack[stack_top])
+ sn->next = node_stack[stack_top]->next;
+ return av - argv + 1;
+ bad:
+ default:
+ errorx(1, "unknown search term \"%s\"", *av);
+ /* NOTREACHED */
+ }
+
+ /* Allocate new search node */
+ newsn = emalloc(sizeof(*newsn));
+ newsn->next = NULL;
+ newsn->type = type;
+ newsn->or = or;
+ newsn->negated = not;
+ if (type == ST_EXPR) {
+ av += parse_expr(&newsn->u.expr, av + 1);
+ } else {
+ if (*(++av) == NULL)
+ errorx(1, "%s requires an argument", av[-1]);
+#ifdef HAVE_REGCOMP
+ if (type == ST_PATTERN) {
+ if (regcomp(&newsn->u.cmdre, *av, REG_EXTENDED|REG_NOSUB) != 0)
+ errorx(1, "invalid regex: %s", *av);
+ } else
+#endif
+ if (type == ST_TODATE || type == ST_FROMDATE) {
+ newsn->u.tstamp = get_date(*av);
+ if (newsn->u.tstamp == -1)
+ errorx(1, "could not parse date \"%s\"", *av);
+ } else {
+ newsn->u.ptr = *av;
+ }
+ }
+ not = or = 0; /* reset state */
+ if (sn)
+ sn->next = newsn;
+ else
+ *headp = newsn;
+ sn = newsn;
+ }
+ if (stack_top)
+ errorx(1, "unmatched '(' in expression");
+ if (or)
+ errorx(1, "illegal trailing \"or\"");
+ if (not)
+ errorx(1, "illegal trailing \"!\"");
+
+ return av - argv;
+}
+
+static int
+match_expr(struct search_node *head, struct log_info *log)
+{
+ struct search_node *sn;
+ int matched = 1, rc;
+
+ for (sn = head; sn; sn = sn->next) {
+ /* If we have no match, skip ahead to the next OR entry. */
+ if (!matched && !sn->or)
+ continue;
+
+ switch (sn->type) {
+ case ST_EXPR:
+ matched = match_expr(sn->u.expr, log);
+ break;
+ case ST_CWD:
+ matched = strcmp(sn->u.cwd, log->cwd) == 0;
+ break;
+ case ST_TTY:
+ matched = strcmp(sn->u.tty, log->tty) == 0;
+ break;
+ case ST_RUNASGROUP:
+ matched = strcmp(sn->u.runas_group, log->runas_group) == 0;
+ break;
+ case ST_RUNASUSER:
+ matched = strcmp(sn->u.runas_user, log->runas_user) == 0;
+ break;
+ case ST_USER:
+ matched = strcmp(sn->u.user, log->user) == 0;
+ break;
+ case ST_PATTERN:
+#ifdef HAVE_REGCOMP
+ rc = regexec(&sn->u.cmdre, log->cmd, 0, NULL, 0);
+ if (rc && rc != REG_NOMATCH) {
+ char buf[BUFSIZ];
+ regerror(rc, &sn->u.cmdre, buf, sizeof(buf));
+ errorx(1, "%s", buf);
+ }
+ matched = rc == REG_NOMATCH ? 0 : 1;
+#else
+ matched = strstr(log.cmd, sn->u.pattern) != NULL;
+#endif
+ break;
+ case ST_FROMDATE:
+ matched = log->tstamp >= sn->u.tstamp;
+ break;
+ case ST_TODATE:
+ matched = log->tstamp <= sn->u.tstamp;
+ break;
+ }
+ if (sn->negated)
+ matched = !matched;
+ }
+ return matched;
+}
+
+static int
+list_session(char *logfile, REGEX_T *re, const char *user, const char *tty)
+{
+ FILE *fp;
+ char *buf = NULL, *cmd = NULL, *cwd = NULL, idbuf[7], *idstr, *cp;
+ struct log_info li;
+ size_t bufsize = 0, cwdsize = 0, cmdsize = 0;
+ int rval = -1;
+
+ fp = fopen(logfile, "r");
+ if (fp == NULL) {
+ warning("unable to open %s", logfile);
+ goto done;
+ }
+
+ /*
+ * ID file has three lines:
+ * 1) a log info line
+ * 2) cwd
+ * 3) command with args
+ */
+ if (getline(&buf, &bufsize, fp) == -1 ||
+ getline(&cwd, &cwdsize, fp) == -1 ||
+ getline(&cmd, &cmdsize, fp) == -1) {
+ goto done;
+ }
+
+ /* crack the log line: timestamp:user:runas_user:runas_group:tty */
+ buf[strcspn(buf, "\n")] = '\0';
+ if ((li.tstamp = atoi(buf)) == 0)
+ goto done;
+
+ if ((cp = strchr(buf, ':')) == NULL)
+ goto done;
+ *cp++ = '\0';
+ li.user = cp;
+
+ if ((cp = strchr(cp, ':')) == NULL)
+ goto done;
+ *cp++ = '\0';
+ li.runas_user = cp;
+
+ if ((cp = strchr(cp, ':')) == NULL)
+ goto done;
+ *cp++ = '\0';
+ li.runas_group = cp;
+
+ if ((cp = strchr(cp, ':')) == NULL)
+ goto done;
+ *cp++ = '\0';
+ li.tty = cp;
+
+ cwd[strcspn(cwd, "\n")] = '\0';
+ li.cwd = cwd;
+
+ cmd[strcspn(cmd, "\n")] = '\0';
+ li.cmd = cmd;
+
+ /* Match on search expression if there is one. */
+ if (search_expr && !match_expr(search_expr, &li))
+ goto done;
+
+ /* Convert from /var/log/sudo-sessions/00/00/01/log to 000001 */
+ cp = logfile + strlen(session_dir) + 1;
+ if (IS_IDLOG(cp)) {
+ idbuf[0] = cp[7];
+ idbuf[1] = cp[6];
+ idbuf[2] = cp[4];
+ idbuf[3] = cp[3];
+ idbuf[4] = cp[1];
+ idbuf[5] = cp[0];
+ idbuf[6] = '\0';
+ idstr = idbuf;
+ } else {
+ /* Not an id, just use the iolog_file portion. */
+ cp[strlen(cp) - 4] = '\0';
+ idstr = cp;
+ }
+ printf("%s : %s : TTY=%s ; CWD=%s ; USER=%s ; ",
+ get_timestr(li.tstamp, 1), li.user, li.tty, li.cwd, li.runas_user);
+ if (*li.runas_group)
+ printf("GROUP=%s ; ", li.runas_group);
+ printf("TSID=%s ; COMMAND=%s\n", idstr, li.cmd);
+
+ rval = 0;
+
+done:
+ fclose(fp);
+ return rval;
+}
+
+static int
+find_sessions(const char *dir, REGEX_T *re, const char *user, const char *tty)
+{
+ DIR *d;
+ struct dirent *dp;
+ struct stat sb;
+ size_t sdlen;
+ int len;
+ char pathbuf[PATH_MAX];
+
+ d = opendir(dir);
+ if (d == NULL)
+ error(1, "unable to open %s", dir);
+
+ /* XXX - would be faster to chdir and use relative names */
+ sdlen = strlcpy(pathbuf, dir, sizeof(pathbuf));
+ if (sdlen + 1 >= sizeof(pathbuf)) {
+ errno = ENAMETOOLONG;
+ error(1, "%s/", dir);
+ }
+ pathbuf[sdlen++] = '/';
+ pathbuf[sdlen] = '\0';
+ while ((dp = readdir(d)) != NULL) {
+ /* Skip "." and ".." */
+ if (dp->d_name[0] == '.' && (dp->d_name[1] == '\0' ||
+ (dp->d_name[1] == '.' && dp->d_name[2] == '\0')))
+ continue;
+
+ len = snprintf(&pathbuf[sdlen], sizeof(pathbuf) - sdlen,
+ "%s/log", dp->d_name);
+ if (len <= 0 || len >= sizeof(pathbuf) - sdlen) {
+ errno = ENAMETOOLONG;
+ error(1, "%s/%s/log", dir, dp->d_name);
+ }
+
+ /* Check for dir with a log file. */
+ if (lstat(pathbuf, &sb) == 0 && S_ISREG(sb.st_mode)) {
+ list_session(pathbuf, re, user, tty);
+ } else {
+ /* Strip off "/log" and recurse if a dir. */
+ pathbuf[sdlen + len - 4] = '\0';
+ if (lstat(pathbuf, &sb) == 0 && S_ISDIR(sb.st_mode))
+ find_sessions(pathbuf, re, user, tty);
+ }
+ }
+ closedir(d);
+
+ return 0;
+}
+
+static int
+list_sessions(int argc, char **argv, const char *pattern, const char *user,
+ const char *tty)
+{
+ REGEX_T rebuf, *re = NULL;
+
+ /* Parse search expression if present */
+ parse_expr(&search_expr, argv);
+
+#ifdef HAVE_REGCOMP
+ /* optional regex */
+ if (pattern) {
+ re = &rebuf;
+ if (regcomp(re, pattern, REG_EXTENDED|REG_NOSUB) != 0)
+ errorx(1, "invalid regex: %s", pattern);
+ }
+#else
+ re = (char *) pattern;
+#endif /* HAVE_REGCOMP */
+
+ return find_sessions(session_dir, re, user, tty);
+}
+
+/*
+ * Check input for ' ', '<', '>'
+ * pause, slow, fast
+ */
+static void
+check_input(int ttyfd, double *speed)
+{
+ fd_set *fdsr;
+ int nready, paused = 0;
+ struct timeval tv;
+ char ch;
+ ssize_t n;
+
+ fdsr = (fd_set *)emalloc2(howmany(ttyfd + 1, NFDBITS), sizeof(fd_mask));
+
+ for (;;) {
+ FD_SET(ttyfd, fdsr);
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
+
+ nready = select(ttyfd + 1, fdsr, NULL, NULL, paused ? NULL : &tv);
+ if (nready != 1)
+ break;
+ n = read(ttyfd, &ch, 1);
+ if (n == 1) {
+ if (paused) {
+ paused = 0;
+ continue;
+ }
+ switch (ch) {
+ case ' ':
+ paused = 1;
+ break;
+ case '<':
+ *speed /= 2;
+ break;
+ case '>':
+ *speed *= 2;
+ break;
+ }
+ }
+ }
+ free(fdsr);
+}
+
+/*
+ * Parse a timing line, which is formatted as:
+ * index sleep_time num_bytes
+ * Where index is IOFD_*, sleep_time is the number of seconds to sleep
+ * before writing the data and num_bytes is the number of bytes to output.
+ * Returns 1 on success and 0 on failure.
+ */
+static int
+parse_timing(buf, decimal, idx, seconds, nbytes)
+ const char *buf;
+ const char *decimal;
+ int *idx;
+ double *seconds;
+ size_t *nbytes;
+{
+ unsigned long ul;
+ long l;
+ double d, fract = 0;
+ char *cp, *ep;
+
+ /* Parse index */
+ ul = strtoul(buf, &ep, 10);
+ if (ul > IOFD_MAX)
+ goto bad;
+ *idx = (int)ul;
+ for (cp = ep + 1; isspace((unsigned char) *cp); cp++)
+ continue;
+
+ /*
+ * Parse number of seconds. Sudo logs timing data in the C locale
+ * but this may not match the current locale so we cannot use strtod().
+ * Furthermore, sudo < 1.7.4 logged with the user's locale so we need
+ * to be able to parse those logs too.
+ */
+ errno = 0;
+ l = strtol(cp, &ep, 10);
+ if ((errno == ERANGE && (l == LONG_MAX || l == LONG_MIN)) ||
+ l < 0 || l > INT_MAX ||
+ (*ep != '.' && strncmp(ep, decimal, strlen(decimal)) != 0)) {
+ goto bad;
+ }
+ *seconds = (double)l;
+ cp = ep + (*ep == '.' ? 1 : strlen(decimal));
+ d = 10.0;
+ while (isdigit((unsigned char) *cp)) {
+ fract += (*cp - '0') / d;
+ d *= 10;
+ cp++;
+ }
+ *seconds += fract;
+ while (isspace((unsigned char) *cp))
+ cp++;
+
+ errno = 0;
+ ul = strtoul(cp, &ep, 10);
+ if (errno == ERANGE && ul == ULONG_MAX)
+ goto bad;
+ *nbytes = (size_t)ul;
+
+ return 1;
+bad:
+ return 0;
+}
+
+static void
+usage(int fatal)
+{
+ fprintf(fatal ? stderr : stdout,
+ "usage: %s [-h] [-d directory] [-m max_wait] [-s speed_factor] ID\n",
+ getprogname());
+ fprintf(fatal ? stderr : stdout,
+ "usage: %s [-h] [-d directory] -l [search expression]\n",
+ getprogname());
+ if (fatal)
+ exit(1);
+}
+
+static void
+help(void)
+{
+ (void) printf("%s - replay sudo session logs\n\n", getprogname());
+ usage(0);
+ (void) puts("\nOptions:");
+ (void) puts(" -d directory specify directory for session logs");
+ (void) puts(" -f filter specify which I/O type to display");
+ (void) puts(" -h display help message and exit");
+ (void) puts(" -l [expression] list available session IDs that match expression");
+ (void) puts(" -m max_wait max number of seconds to wait between events");
+ (void) puts(" -s speed_factor speed up or slow down output");
+ (void) puts(" -V display version information and exit");
+ exit(0);
+}
+
+/*
+ * Cleanup hook for error()/errorx()
+ */
+void
+cleanup(int signo)
+{
+ term_restore(STDIN_FILENO, 0);
+ if (signo)
+ kill(getpid(), signo);
+}
projects / debian / sudo / blobdiff