aaf5d0dc6e
This fixes a problem where when logsrvd.conf was reloaded while running (due to SIGHUP) and there was an error we could end up with a partial config.
144 lines
4.4 KiB
C
144 lines
4.4 KiB
C
/*
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* SPDX-License-Identifier: ISC
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*
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* Copyright (c) 2009-2019 Todd C. Miller <Todd.Miller@sudo.ws>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef SUDO_IOLOG_H
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#define SUDO_IOLOG_H
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#ifdef HAVE_ZLIB_H
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# include <zlib.h> /* for gzFile */
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#endif
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/* Default maximum session ID */
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#define SESSID_MAX 2176782336U
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/*
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* I/O log event types as stored as the first field in the timing file.
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* Changing existing values will result in incompatible I/O log files.
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*/
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#define IO_EVENT_STDIN 0
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#define IO_EVENT_STDOUT 1
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#define IO_EVENT_STDERR 2
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#define IO_EVENT_TTYIN 3
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#define IO_EVENT_TTYOUT 4
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#define IO_EVENT_WINSIZE 5
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#define IO_EVENT_TTYOUT_1_8_7 6
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#define IO_EVENT_SUSPEND 7
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#define IO_EVENT_COUNT 8
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/*
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* Indexes into iolog_files[] array.
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* These must match the IO_EVENT_ defines above.
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* TODO: eliminate use of IOFD_* and IO_EVENT_* as indexes in favor of
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* a struct containing iolog_file *s for each (and names too?).
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*/
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#define IOFD_STDIN 0
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#define IOFD_STDOUT 1
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#define IOFD_STDERR 2
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#define IOFD_TTYIN 3
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#define IOFD_TTYOUT 4
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#define IOFD_TIMING 5
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#define IOFD_MAX 6
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/*
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* Info present in the I/O log file
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*/
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struct iolog_info {
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char *cwd;
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char *user;
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char *runas_user;
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char *runas_group;
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char *tty;
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char *cmd;
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time_t tstamp;
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int lines;
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int cols;
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};
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struct timing_closure {
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struct timespec delay;
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const char *decimal;
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struct iolog_file *iol;
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int event;
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union {
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struct {
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int lines;
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int cols;
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} winsize;
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size_t nbytes;
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int signo;
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} u;
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};
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struct iolog_file {
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bool enabled;
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bool compressed;
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union {
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FILE *f;
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#ifdef HAVE_ZLIB_H
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gzFile g;
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#endif
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void *v;
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} fd;
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};
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struct iolog_path_escape {
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const char *name;
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size_t (*copy_fn)(char *, size_t, char *, void *);
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};
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/* iolog_path.c */
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/* XXX - bad API */
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char *expand_iolog_path(const char *prefix, const char *dir, const char *file, char **slashp, const struct iolog_path_escape *escapes, void *closure);
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/* iolog_util.c */
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/* XXX - prefix these */
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bool parse_timing(const char *line, struct timing_closure *timing);
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char *parse_delay(const char *cp, struct timespec *delay, const char *decimal_point);
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int read_timing_record(struct iolog_file *iol, struct timing_closure *timing);
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struct iolog_info *parse_logfile(FILE *fp, const char *iolog_dir);
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void adjust_delay(struct timespec *delay, struct timespec *max_delay, double scale_factor);
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void free_iolog_info(struct iolog_info *li);
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/* iolog_fileio.c */
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struct passwd;
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struct group;
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bool iolog_close(struct iolog_file *iol, const char **errstr);
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bool iolog_eof(struct iolog_file *iol);
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bool iolog_mkdtemp(char *path);
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bool iolog_nextid(char *iolog_dir, char sessid[7]);
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bool iolog_open(struct iolog_file *iol, int dfd, int iofd, const char *mode);
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bool iolog_rename(const char *from, const char *to);
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bool iolog_write_info_file(int dfd, const char *parent, struct iolog_info *log_info, char * const argv[]);
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char *iolog_gets(struct iolog_file *iol, char *buf, size_t nbytes, const char **errsttr);
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const char *iolog_fd_to_name(int iofd);
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int iolog_openat(int fdf, const char *path, int flags);
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off_t iolog_seek(struct iolog_file *iol, off_t offset, int whence);
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size_t mkdir_iopath(const char *iolog_path, char *pathbuf, size_t pathsize);
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ssize_t iolog_read(struct iolog_file *iol, void *buf, size_t nbytes, const char **errstr);
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ssize_t iolog_write(struct iolog_file *iol, const void *buf, size_t len, const char **errstr);
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void iolog_rewind(struct iolog_file *iol);
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void iolog_set_compress(bool);
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void iolog_set_defaults(void);
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void iolog_set_flush(bool);
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void iolog_set_group(const struct group *gr);
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void iolog_set_maxseq(unsigned int maxval);
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void iolog_set_mode(mode_t mode);
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void iolog_set_user(const struct passwd *pw);
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#endif /* SUDO_IOLOG_H */
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