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mod_log.c
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mod_log.c
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/*
* ProFTPD - FTP server daemon
* Copyright (c) 1997, 1998 Public Flood Software
* Copyright (c) 1999, 2000 MacGyver aka Habeeb J. Dihu <macgyver@tos.net>
* Copyright (c) 2001-2016 The ProFTPD Project team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
*
* As a special exemption, Public Flood Software/MacGyver aka Habeeb J. Dihu
* and other respective copyright holders give permission to link this program
* with OpenSSL, and distribute the resulting executable, without including
* the source code for OpenSSL in the source distribution.
*/
/* Flexible logging module for proftpd */
#include "conf.h"
#include "privs.h"
#include "mod_log.h"
module log_module;
/* Max path length plus 128 bytes for additional info. */
#define EXTENDED_LOG_BUFFER_SIZE (PR_TUNABLE_PATH_MAX + 128)
#define EXTENDED_LOG_MODE 0644
#define EXTENDED_LOG_FORMAT_DEFAULT "default"
typedef struct logformat_struc logformat_t;
typedef struct logfile_struc logfile_t;
struct logformat_struc {
logformat_t *next,*prev;
char *lf_nickname;
unsigned char *lf_format;
};
struct logfile_struc {
logfile_t *next,*prev;
char *lf_filename;
int lf_fd;
int lf_syslog_level;
logformat_t *lf_format;
int lf_incl_classes;
int lf_excl_classes;
/* Pointer to the "owning" configuration */
config_rec *lf_conf;
};
/* Value for lf_fd signalling that data should be logged via syslog, rather
* than written to a file.
*/
#define EXTENDED_LOG_SYSLOG -4
/* For tracking the size of deleted files. */
static off_t log_dele_filesz = 0;
static pool *log_pool = NULL;
static logformat_t *formats = NULL;
static xaset_t *format_set = NULL;
static logfile_t *logs = NULL;
static xaset_t *log_set = NULL;
/* format string args:
%A - Anonymous username (password given)
%a - Remote client IP address
%b - Bytes sent for request
%{basename} - Basename of path
%c - Class
%D - full directory path
%d - directory (for client)
%E - End-of-session reason
%{FOOBAR}e - Contents of environment variable FOOBAR
%F - Transfer path (filename for client)
%f - Filename
%g - Local user's primary group name
%H - Local IP address of server handling session
%h - Remote client DNS name
%I - Total number of "raw" bytes read in from network
%J - Request (command) arguments (file.txt, etc)
%L - Local IP address contacted by client
%l - Remote logname (from identd)
%m - Request (command) method (RETR, etc)
%O - Total number of "raw" bytes written out to network
%P - Process ID of child serving request
%p - Port of server serving request
%R - Response time for command/request, in milliseconds
%r - Full request (command)
%s - Response code (status)
%S - Response string
%T - Time taken to transfer file, in seconds
%t - Time
%{format}t - Formatted time (strftime(3) format)
%U - Original username sent by client
%u - Local user
%V - DNS name of server serving request
%v - ServerName of server serving request
%w - RNFR path ("whence" a rename comes, i.e. the source)
%{file-modified} - Indicates whether a file is being modified
(i.e. already exists) or not.
%{file-offset} - Contains the offset at which the file is read/written
%{file-size} - Contains the file size at the end of the transfer
%{iso8601} - ISO-8601 timestamp: YYYY-MM-dd HH:mm:ss,SSS
for example: "1999-11-27 15:49:37,459"
%{microsecs} - 6 digits of microseconds of current time
%{millisecs} - 3 digits of milliseconds of current time
%{protocol} - Current protocol (e.g. "ftp", "sftp", etc)
%{uid} - UID of logged-in user
%{gid} - Primary GID of logged-in user
%{transfer-failure} - reason, or "-"
%{transfer-millisecs}- Time taken to transfer file, in milliseconds
%{transfer-status} - "success", "failed", "cancelled", "timeout", or "-"
%{transfer-type} - "binary" or "ASCII"
%{version} - ProFTPD version
*/
/* Necessary prototypes */
static int log_sess_init(void);
static void log_xfer_stalled_ev(const void *, void *);
static void add_meta(unsigned char **s, unsigned char meta, int args, ...) {
int arglen;
char *arg;
**s = LOGFMT_META_START;
(*s) = (*s) + 1;
**s = meta;
(*s) = (*s) + 1;
if (args) {
va_list ap;
va_start(ap, args);
while (args--) {
arglen = va_arg(ap, int);
arg = va_arg(ap, char *);
memcpy(*s, arg, arglen);
(*s) = (*s) + arglen;
**s = LOGFMT_META_ARG_END;
(*s) = (*s) + 1;
}
va_end(ap);
}
}
static char *preparse_arg(char **s) {
char *ret = (*s) + 1;
(*s) = (*s) + 1;
while (**s && **s != '}')
(*s) = (*s) + 1;
**s = '\0';
(*s) = (*s) + 1;
return ret;
}
static void logformat(const char *directive, char *nickname, char *fmts) {
char *tmp, *arg;
unsigned char format[4096] = {'\0'}, *outs;
logformat_t *lf;
/* This function can cause potential problems. Custom LogFormats
* might overrun the format buffer. Fixing this problem involves a
* rewrite of most of this module. This will happen post 1.2.0.
*/
outs = format;
for (tmp = fmts; *tmp; ) {
if (*tmp == '%') {
arg = NULL;
tmp++;
for (;;) {
pr_signals_handle();
if (strncmp(tmp, "{basename}", 10) == 0) {
add_meta(&outs, LOGFMT_META_BASENAME, 0);
tmp += 10;
continue;
}
if (strncmp(tmp, "{file-modified}", 15) == 0) {
add_meta(&outs, LOGFMT_META_FILE_MODIFIED, 0);
tmp += 15;
continue;
}
if (strncmp(tmp, "{file-offset}", 13) == 0) {
add_meta(&outs, LOGFMT_META_FILE_OFFSET, 0);
tmp += 13;
continue;
}
if (strncmp(tmp, "{file-size}", 11) == 0) {
add_meta(&outs, LOGFMT_META_FILE_SIZE, 0);
tmp += 11;
continue;
}
if (strncmp(tmp, "{gid}", 5) == 0) {
add_meta(&outs, LOGFMT_META_GID, 0);
tmp += 5;
continue;
}
if (strncasecmp(tmp, "{iso8601}", 9) == 0) {
add_meta(&outs, LOGFMT_META_ISO8601, 0);
tmp += 9;
continue;
}
if (strncmp(tmp, "{microsecs}", 11) == 0) {
add_meta(&outs, LOGFMT_META_MICROSECS, 0);
tmp += 11;
continue;
}
if (strncmp(tmp, "{millisecs}", 11) == 0) {
add_meta(&outs, LOGFMT_META_MILLISECS, 0);
tmp += 11;
continue;
}
if (strncmp(tmp, "{protocol}", 10) == 0) {
add_meta(&outs, LOGFMT_META_PROTOCOL, 0);
tmp += 10;
continue;
}
if (strncmp(tmp, "{remote-port}", 13) == 0) {
add_meta(&outs, LOGFMT_META_REMOTE_PORT, 0);
tmp += 13;
continue;
}
if (strncmp(tmp, "{uid}", 5) == 0) {
add_meta(&outs, LOGFMT_META_UID, 0);
tmp += 5;
continue;
}
if (strncmp(tmp, "{transfer-millisecs}", 20) == 0) {
add_meta(&outs, LOGFMT_META_XFER_MS, 0);
tmp += 20;
continue;
}
if (strncmp(tmp, "{transfer-failure}", 18) == 0) {
add_meta(&outs, LOGFMT_META_XFER_FAILURE, 0);
tmp += 18;
continue;
}
if (strncmp(tmp, "{transfer-status}", 17) == 0) {
add_meta(&outs, LOGFMT_META_XFER_STATUS, 0);
tmp += 17;
continue;
}
if (strncmp(tmp, "{transfer-type}", 15) == 0) {
add_meta(&outs, LOGFMT_META_XFER_TYPE, 0);
tmp += 15;
continue;
}
if (strncmp(tmp, "{version}", 9) == 0) {
add_meta(&outs, LOGFMT_META_VERSION, 0);
tmp += 9;
continue;
}
if (strncmp(tmp, "{note:", 6) == 0) {
char *ptr;
ptr = strchr(tmp + 6, '}');
if (ptr != NULL) {
char *note;
size_t notelen;
note = tmp + 6;
notelen = (ptr - note);
add_meta(&outs, LOGFMT_META_NOTE_VAR, 0);
add_meta(&outs, LOGFMT_META_ARG, 1, (int) notelen, note);
/* Advance 6 for the leading '{note:', and one more for the
* trailing '}' character.
*/
tmp += (notelen + 6 + 1);
continue;
}
}
switch (*tmp) {
case '{':
arg = preparse_arg(&tmp);
continue;
case 'a':
add_meta(&outs, LOGFMT_META_REMOTE_IP, 0);
break;
case 'A':
add_meta(&outs, LOGFMT_META_ANON_PASS, 0);
break;
case 'b':
add_meta(&outs, LOGFMT_META_BYTES_SENT, 0);
break;
case 'c':
add_meta(&outs, LOGFMT_META_CLASS, 0);
break;
case 'D':
add_meta(&outs, LOGFMT_META_DIR_PATH, 0);
break;
case 'd':
add_meta(&outs, LOGFMT_META_DIR_NAME, 0);
break;
case 'E':
add_meta(&outs, LOGFMT_META_EOS_REASON, 0);
break;
case 'e':
if (arg) {
add_meta(&outs, LOGFMT_META_ENV_VAR, 0);
add_meta(&outs, LOGFMT_META_ARG, 1, (int) strlen(arg), arg);
}
break;
case 'f':
add_meta(&outs, LOGFMT_META_FILENAME, 0);
break;
case 'F':
add_meta(&outs, LOGFMT_META_XFER_PATH, 0);
break;
case 'g':
add_meta(&outs, LOGFMT_META_GROUP, 0);
break;
case 'H':
add_meta(&outs, LOGFMT_META_VHOST_IP, 0);
break;
case 'h':
add_meta(&outs, LOGFMT_META_REMOTE_HOST, 0);
break;
case 'I':
add_meta(&outs, LOGFMT_META_RAW_BYTES_IN, 0);
break;
case 'J':
add_meta(&outs, LOGFMT_META_CMD_PARAMS, 0);
break;
case 'l':
add_meta(&outs, LOGFMT_META_IDENT_USER, 0);
break;
case 'L':
add_meta(&outs, LOGFMT_META_LOCAL_IP, 0);
break;
case 'm':
add_meta(&outs, LOGFMT_META_METHOD, 0);
break;
case 'O':
add_meta(&outs, LOGFMT_META_RAW_BYTES_OUT, 0);
break;
case 'p':
add_meta(&outs, LOGFMT_META_LOCAL_PORT, 0);
break;
case 'P':
add_meta(&outs, LOGFMT_META_PID, 0);
break;
case 'r':
add_meta(&outs, LOGFMT_META_COMMAND, 0);
break;
case 'R':
add_meta(&outs, LOGFMT_META_RESPONSE_MS, 0);
break;
case 's':
add_meta(&outs, LOGFMT_META_RESPONSE_CODE, 0);
break;
case 'S':
add_meta(&outs, LOGFMT_META_RESPONSE_STR, 0);
break;
case 't':
add_meta(&outs, LOGFMT_META_TIME, 0);
if (arg)
add_meta(&outs, LOGFMT_META_ARG, 1, (int) strlen(arg), arg);
break;
case 'T':
add_meta(&outs, LOGFMT_META_SECONDS, 0);
break;
case 'u':
add_meta(&outs, LOGFMT_META_USER, 0);
break;
case 'U':
add_meta(&outs, LOGFMT_META_ORIGINAL_USER, 0);
break;
case 'v':
add_meta(&outs, LOGFMT_META_LOCAL_NAME, 0);
break;
case 'V':
add_meta(&outs, LOGFMT_META_LOCAL_FQDN, 0);
break;
case 'w':
add_meta(&outs, LOGFMT_META_RENAME_FROM, 0);
break;
case '%':
*outs++ = '%';
break;
default:
*outs++ = *tmp;
break;
}
tmp++;
break;
}
} else {
*outs++ = *tmp++;
}
}
*outs++ = '\0';
lf = (logformat_t *) pcalloc(log_pool, sizeof(logformat_t));
lf->lf_nickname = pstrdup(log_pool, nickname);
lf->lf_format = palloc(log_pool, outs - format);
memcpy(lf->lf_format, format, outs - format);
if (!format_set)
format_set = xaset_create(log_pool, NULL);
xaset_insert_end(format_set, (xasetmember_t *) lf);
formats = (logformat_t *) format_set->xas_list;
if (directive != NULL) {
config_rec *c;
/* Store the parsed format in the config tree as well, for use by other
* logging-related modules.
*/
c = add_config_param(directive, 2, NULL, NULL);
c->argv[0] = pstrdup(c->pool, nickname);
c->argv[1] = palloc(c->pool, outs - format);
tmp = c->argv[1];
memcpy(tmp, format, outs - format);
}
}
/* Syntax: LogFormat nickname "format string" */
MODRET set_logformat(cmd_rec *cmd) {
CHECK_ARGS(cmd, 2);
CHECK_CONF(cmd, CONF_ROOT);
if (strlen(cmd->argv[1]) == 0) {
CONF_ERROR(cmd, "missing required nickname parameter");
}
logformat(cmd->argv[0], cmd->argv[1], cmd->argv[2]);
return PR_HANDLED(cmd);
}
static int parse_classes(char *s, int *incl_classes, int *excl_classes) {
int incl = CL_NONE, excl = CL_NONE;
char *nextp = NULL;
do {
int exclude = FALSE;
pr_signals_handle();
nextp = strchr(s, ',');
if (nextp != NULL) {
*nextp++ = '\0';
} else {
nextp = strchr(s, '|');
if (nextp != NULL) {
*nextp++ = '\0';
}
}
if (*s == '!') {
exclude = TRUE;
s++;
}
if (strcasecmp(s, "NONE") == 0) {
if (exclude) {
incl = CL_ALL;
excl = CL_NONE;
} else {
incl = CL_NONE;
}
} else if (strcasecmp(s, "ALL") == 0) {
if (exclude) {
incl = CL_NONE;
excl = CL_ALL;
} else {
incl = CL_ALL;
}
} else if (strcasecmp(s, "AUTH") == 0) {
if (exclude) {
incl &= ~CL_AUTH;
excl |= CL_AUTH;
} else {
incl |= CL_AUTH;
}
} else if (strcasecmp(s, "INFO") == 0) {
if (exclude) {
incl &= ~CL_INFO;
excl |= CL_INFO;
} else {
incl |= CL_INFO;
}
} else if (strcasecmp(s, "DIRS") == 0) {
if (exclude) {
incl &= ~CL_DIRS;
excl |= CL_DIRS;
} else {
incl |= CL_DIRS;
}
} else if (strcasecmp(s, "READ") == 0) {
if (exclude) {
incl &= ~CL_READ;
excl |= CL_READ;
} else {
incl |= CL_READ;
}
} else if (strcasecmp(s, "WRITE") == 0) {
if (exclude) {
incl &= ~CL_WRITE;
excl |= CL_WRITE;
} else {
incl |= CL_WRITE;
}
} else if (strcasecmp(s, "MISC") == 0) {
if (exclude) {
incl &= ~CL_MISC;
excl |= CL_MISC;
} else {
incl |= CL_MISC;
}
} else if (strcasecmp(s, "SEC") == 0 ||
strcasecmp(s, "SECURE") == 0) {
if (exclude) {
incl &= ~CL_SEC;
excl |= CL_SEC;
} else {
incl |= CL_SEC;
}
} else if (strcasecmp(s, "EXIT") == 0) {
if (exclude) {
incl &= ~CL_EXIT;
excl |= CL_EXIT;
} else {
incl |= CL_EXIT;
}
} else if (strcasecmp(s, "SSH") == 0) {
if (exclude) {
incl &= ~CL_SSH;
excl |= CL_SSH;
} else {
incl |= CL_SSH;
}
} else if (strcasecmp(s, "SFTP") == 0) {
if (exclude) {
incl &= ~CL_SFTP;
excl |= CL_SFTP;
} else {
incl |= CL_SFTP;
}
} else {
pr_log_pri(PR_LOG_NOTICE, "ExtendedLog class '%s' is not defined", s);
errno = EINVAL;
return -1;
}
/* Advance to the next class in the list. */
s = nextp;
} while (s);
*incl_classes = incl;
*excl_classes = excl;
return 0;
}
/* Syntax: ExtendedLog file [<cmd-classes> [<nickname>]] */
MODRET set_extendedlog(cmd_rec *cmd) {
config_rec *c = NULL;
int argc;
char *path;
CHECK_CONF(cmd, CONF_ROOT|CONF_VIRTUAL|CONF_GLOBAL|CONF_ANON);
argc = cmd->argc;
if (argc < 2) {
CONF_ERROR(cmd, "Syntax: ExtendedLog file [<cmd-classes> [<nickname>]]");
}
c = add_config_param(cmd->argv[0], 4, NULL, NULL, NULL, NULL);
path = cmd->argv[1];
if (strncasecmp(path, "syslog:", 7) == 0) {
char *ptr;
ptr = strchr(path, ':');
if (pr_log_str2sysloglevel(++ptr) < 0) {
CONF_ERROR(cmd, pstrcat(cmd->tmp_pool, "unknown syslog level: '",
ptr, "'", NULL));
}
c->argv[0] = pstrdup(log_pool, path);
} else if (path[0] != '/') {
CONF_ERROR(cmd, pstrcat(cmd->tmp_pool, "relative paths not allowed: '",
path, "'", NULL));
} else {
c->argv[0] = pstrdup(log_pool, path);
}
if (argc > 2) {
int incl_classes = 0, excl_classes = 0, res;
/* Parse the given class names, to make sure that they are all valid. */
res = parse_classes(cmd->argv[2], &incl_classes, &excl_classes);
if (res < 0) {
CONF_ERROR(cmd, pstrcat(cmd->tmp_pool, "invalid log class in '",
cmd->argv[2], "'", NULL));
}
c->argv[1] = palloc(c->pool, sizeof(int));
*((int *) c->argv[1]) = incl_classes;
c->argv[2] = palloc(c->pool, sizeof(int));
*((int *) c->argv[2]) = excl_classes;
}
if (argc > 3) {
c->argv[3] = pstrdup(log_pool, cmd->argv[3]);
}
return PR_HANDLED(cmd);
}
/* Syntax: AllowLogSymlinks <on|off> */
MODRET set_allowlogsymlinks(cmd_rec *cmd) {
int bool = -1;
config_rec *c = NULL;
CHECK_ARGS(cmd, 1);
CHECK_CONF(cmd, CONF_ROOT|CONF_VIRTUAL|CONF_GLOBAL);
bool = get_boolean(cmd, 1);
if (bool == -1)
CONF_ERROR(cmd, "expected Boolean parameter");
c = add_config_param(cmd->argv[0], 1, NULL);
c->argv[0] = pcalloc(c->pool, sizeof(unsigned char));
*((unsigned char *) c->argv[0]) = bool;
return PR_HANDLED(cmd);
}
/* Syntax: ServerLog <filename> */
MODRET set_serverlog(cmd_rec *cmd) {
CHECK_ARGS(cmd, 1);
CHECK_CONF(cmd, CONF_ROOT|CONF_VIRTUAL|CONF_GLOBAL);
add_config_param_str(cmd->argv[0], 1, cmd->argv[1]);
return PR_HANDLED(cmd);
}
/* Syntax: SystemLog <filename> */
MODRET set_systemlog(cmd_rec *cmd) {
CHECK_ARGS(cmd, 1);
CHECK_CONF(cmd, CONF_ROOT);
(void) add_config_param_str(cmd->argv[0], 1, cmd->argv[1]);
return PR_HANDLED(cmd);
}
static struct tm *get_gmtoff(int *tz) {
time_t now;
struct tm *gmt, *tm = NULL;
/* Note that the ordering of the calls to gmtime(3) and pr_localtime()
* here are IMPORTANT; gmtime(3) MUST be called first. Otherwise,
* the TZ environment variable may not be honored as one would expect;
* see:
* https://forums.proftpd.org/smf/index.php/topic,11971.0.html
*/
time(&now);
gmt = gmtime(&now);
if (gmt != NULL) {
int days, hours, minutes;
tm = pr_localtime(NULL, &now);
if (tm != NULL) {
days = tm->tm_yday - gmt->tm_yday;
hours = ((days < -1 ? 24 : 1 < days ? -24 : days * 24)
+ tm->tm_hour - gmt->tm_hour);
minutes = hours * 60 + tm->tm_min - gmt->tm_min;
*tz = minutes;
}
}
return tm;
}
static char *get_next_meta(pool *p, cmd_rec *cmd, unsigned char **f,
size_t *mlen) {
unsigned char *m;
const char *pass;
char arg[PR_TUNABLE_PATH_MAX+1] = {'\0'}, *argp = NULL;
int len = 0;
/* This function can cause potential problems. Custom logformats
* might overrun the arg buffer. Fixing this problem involves a
* rewrite of most of this module. This will happen post 1.2.0.
*/
m = (*f) + 1;
switch (*m) {
case LOGFMT_META_ARG:
m++;
argp = arg;
while (*m != LOGFMT_META_ARG_END) {
*argp++ = (char) *m++;
len++;
}
*argp = 0;
argp = arg;
m++;
break;
case LOGFMT_META_ANON_PASS:
argp = arg;
pass = pr_table_get(session.notes, "mod_auth.anon-passwd", NULL);
if (pass == NULL) {
pass = "UNKNOWN";
}
len = sstrncpy(argp, pass, sizeof(arg));
m++;
break;
case LOGFMT_META_BYTES_SENT:
argp = arg;
if (session.xfer.p) {
len = snprintf(argp, sizeof(arg), "%" PR_LU,
(pr_off_t) session.xfer.total_bytes);
} else if (pr_cmd_cmp(cmd, PR_CMD_DELE_ID) == 0) {
len = snprintf(argp, sizeof(arg), "%" PR_LU,
(pr_off_t) log_dele_filesz);
} else {
len = sstrncpy(argp, "-", sizeof(arg));
}
m++;
break;
case LOGFMT_META_CLASS:
argp = arg;
len = sstrncpy(argp,
session.conn_class ? session.conn_class->cls_name : "-", sizeof(arg));
m++;
break;
case LOGFMT_META_DIR_NAME:
argp = arg;
if (pr_cmd_cmp(cmd, PR_CMD_CDUP_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_CWD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_LIST_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_MLSD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_MKD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_NLST_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_RMD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_XCWD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_XCUP_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_XMKD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_XRMD_ID) == 0) {
char *path, *tmp;
path = pr_fs_decode_path(p, cmd->arg);
tmp = strrchr(path, '/');
if (tmp != NULL) {
if (tmp != path) {
len = sstrncpy(argp, tmp + 1, sizeof(arg));
} else if (*(tmp+1) != '\0') {
len = sstrncpy(argp, tmp + 1, sizeof(arg));
} else {
len = sstrncpy(argp, path, sizeof(arg));
}
} else {
len = sstrncpy(argp, path, sizeof(arg));
}
} else {
len = sstrncpy(argp, pr_fs_getvwd(), sizeof(arg));
}
m++;
break;
case LOGFMT_META_DIR_PATH:
argp = arg;
if (pr_cmd_cmp(cmd, PR_CMD_CDUP_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_LIST_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_MLSD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_MKD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_NLST_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_RMD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_XCUP_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_XMKD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_XRMD_ID) == 0) {
char *decoded_path, *abs_path;
decoded_path = pr_fs_decode_path(p, cmd->arg);
abs_path = dir_abs_path(p, decoded_path, TRUE);
len = sstrncpy(argp, abs_path, sizeof(arg));
} else if (pr_cmd_cmp(cmd, PR_CMD_CWD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_XCWD_ID) == 0) {
/* Note: by this point in the dispatch cycle, the current working
* directory has already been changed. For the CWD/XCWD commands,
* this means that dir_abs_path() may return an improper path,
* with the target directory being reported twice. To deal with this,
* don't use dir_abs_path(), and use pr_fs_getvwd()/pr_fs_getcwd()
* instead.
*/
if (session.chroot_path) {
/* Chrooted session. */
len = sstrncpy(arg, strcmp(pr_fs_getvwd(), "/") ?
pdircat(p, session.chroot_path, pr_fs_getvwd(), NULL) :
session.chroot_path, sizeof(arg));
} else {
/* Non-chrooted session. */
len = sstrncpy(arg, pr_fs_getcwd(), sizeof(arg));
}
} else {
len = sstrncpy(argp, "", sizeof(arg));
}
m++;
break;
case LOGFMT_META_EOS_REASON: {
const char *details = NULL, *reason_str;
argp = arg;
reason_str = pr_session_get_disconnect_reason(&details);
len = sstrncpy(argp, reason_str, sizeof(arg));
if (details != NULL) {
size_t details_len;
details_len = strlen(details);
sstrcat(argp, ": ", sizeof(arg));
sstrcat(argp, details, sizeof(arg));
len += details_len + 2;
}
m++;
break;
}
case LOGFMT_META_FILENAME:
argp = arg;
if (pr_cmd_cmp(cmd, PR_CMD_RNTO_ID) == 0) {
char *decoded_path, *abs_path;
decoded_path = pr_fs_decode_path(p, cmd->arg);
abs_path = dir_abs_path(p, decoded_path, TRUE);
len = sstrncpy(argp, abs_path, sizeof(arg));
} else if (pr_cmd_cmp(cmd, PR_CMD_RETR_ID) == 0) {
const char *path;
path = pr_table_get(cmd->notes, "mod_xfer.retr-path", NULL);
if (path != NULL) {
len = sstrncpy(arg, dir_abs_path(p, path, TRUE), sizeof(arg));
} else {
len = sstrncpy(argp, "", sizeof(arg));
}
} else if (pr_cmd_cmp(cmd, PR_CMD_APPE_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_STOR_ID) == 0) {
const char *path;
path = pr_table_get(cmd->notes, "mod_xfer.store-path", NULL);
if (path != NULL) {
len = sstrncpy(arg, dir_abs_path(p, path, TRUE), sizeof(arg));
} else {
len = sstrncpy(argp, "", sizeof(arg));
}
} else if (session.xfer.p &&
session.xfer.path) {
len = sstrncpy(argp, dir_abs_path(p, session.xfer.path, TRUE),
sizeof(arg));
} else if (pr_cmd_cmp(cmd, PR_CMD_CDUP_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_PWD_ID) == 0 ||
pr_cmd_cmp(cmd, PR_CMD_XCUP_ID) == 0 ||