10 /* log session to file stuff ... */
13 char currlogfilename
[FILENAME_MAX
];
17 static void xlatlognam(char *d
, char *s
, char *hostname
, struct tm
*tm
);
20 * Log session traffic.
22 void logtraffic(void *handle
, unsigned char c
, int logmode
)
24 struct LogContext
*ctx
= (struct LogContext
*)handle
;
25 if (cfg
.logtype
> 0) {
26 if (cfg
.logtype
== logmode
) {
27 /* deferred open file from pgm start? */
37 * Log an Event Log entry. Used in SSH packet logging mode; this is
38 * also as convenient a place as any to put the output of Event Log
39 * entries to stderr when a command-line tool is in verbose mode.
40 * (In particular, this is a better place to put it than in the
41 * front ends, because it only has to be done once for all
42 * platforms. Platforms which don't have a meaningful stderr can
43 * just avoid defining FLAG_STDERR.
45 void log_eventlog(void *handle
, char *event
)
47 struct LogContext
*ctx
= (struct LogContext
*)handle
;
48 if ((flags
& FLAG_STDERR
) && (flags
& FLAG_VERBOSE
)) {
49 fprintf(stderr
, "%s\n", event
);
52 if (cfg
.logtype
!= LGTYP_PACKETS
)
57 fprintf(ctx
->lgfp
, "Event Log: %s\r\n", event
);
63 void log_packet(void *handle
, int direction
, int type
,
64 char *texttype
, void *data
, int len
)
66 struct LogContext
*ctx
= (struct LogContext
*)handle
;
68 char dumpdata
[80], smalldata
[5];
70 if (cfg
.logtype
!= LGTYP_PACKETS
)
75 fprintf(ctx
->lgfp
, "%s packet type %d / 0x%02x (%s)\r\n",
76 direction
== PKT_INCOMING ?
"Incoming" : "Outgoing",
77 type
, type
, texttype
);
78 for (i
= 0; i
< len
; i
+= 16) {
79 sprintf(dumpdata
, " %08x%*s\r\n", i
, 1+3*16+2+16, "");
80 for (j
= 0; j
< 16 && i
+j
< len
; j
++) {
81 int c
= ((unsigned char *)data
)[i
+j
];
82 sprintf(smalldata
, "%02x", c
);
83 dumpdata
[10+2+3*j
] = smalldata
[0];
84 dumpdata
[10+2+3*j
+1] = smalldata
[1];
85 dumpdata
[10+1+3*16+2+j
] = (isprint(c
) ? c
: '.');
87 strcpy(dumpdata
+ 10+1+3*16+2+j
, "\r\n");
88 fputs(dumpdata
, ctx
->lgfp
);
94 /* open log file append/overwrite mode */
95 void logfopen(void *handle
)
97 struct LogContext
*ctx
= (struct LogContext
*)handle
;
103 /* Prevent repeat calls */
109 sprintf(writemod
, "wb"); /* default to rewrite */
114 /* substitute special codes in file name */
115 xlatlognam(ctx
->currlogfilename
, cfg
.logfilename
,cfg
.host
, &tm
);
117 ctx
->lgfp
= fopen(ctx
->currlogfilename
, "r"); /* file already present? */
121 i
= askappend(ctx
->frontend
, ctx
->currlogfilename
);
123 writemod
[0] = 'a'; /* set append mode */
124 else if (i
== 0) { /* cancelled */
126 cfg
.logtype
= 0; /* disable logging */
131 ctx
->lgfp
= fopen(ctx
->currlogfilename
, writemod
);
132 if (ctx
->lgfp
) { /* enter into event log */
133 /* --- write header line into log file */
134 fputs("=~=~=~=~=~=~=~=~=~=~=~= PuTTY log ", ctx
->lgfp
);
135 strftime(buf
, 24, "%Y.%m.%d %H:%M:%S", &tm
);
136 fputs(buf
, ctx
->lgfp
);
137 fputs(" =~=~=~=~=~=~=~=~=~=~=~=\r\n", ctx
->lgfp
);
139 sprintf(buf
, "%s session log (%s mode) to file: ",
140 (writemod
[0] == 'a') ?
"Appending" : "Writing new",
141 (cfg
.logtype
== LGTYP_ASCII ?
"ASCII" :
142 cfg
.logtype
== LGTYP_DEBUG ?
"raw" :
143 cfg
.logtype
== LGTYP_PACKETS ?
"SSH packets" : "<ukwn>"));
144 /* Make sure we do not exceed the output buffer size */
145 strncat(buf
, ctx
->currlogfilename
, 128);
146 buf
[strlen(buf
)] = '\0';
147 logevent(ctx
->frontend
, buf
);
151 void logfclose(void *handle
)
153 struct LogContext
*ctx
= (struct LogContext
*)handle
;
160 void *log_init(void *frontend
)
162 struct LogContext
*ctx
= smalloc(sizeof(struct LogContext
));
164 ctx
->frontend
= frontend
;
169 * translate format codes into time/date strings
170 * and insert them into log file name
172 * "&Y":YYYY "&m":MM "&d":DD "&T":hhmm "&h":<hostname> "&&":&
174 static void xlatlognam(char *d
, char *s
, char *hostname
, struct tm
*tm
) {
177 int len
= FILENAME_MAX
-1;
180 /* Let (bufp, len) be the string to append. */
181 bufp
= buf
; /* don't usually override this */
186 if (*s
) switch (c
= *s
++, tolower(c
)) {
188 size
= strftime(buf
, sizeof(buf
), "%Y", tm
);
191 size
= strftime(buf
, sizeof(buf
), "%m", tm
);
194 size
= strftime(buf
, sizeof(buf
), "%d", tm
);
197 size
= strftime(buf
, sizeof(buf
), "%H%M%S", tm
);
215 memcpy(d
, bufp
, size
);