US"Local-only delivery",
US"Domain in queue_domains",
US"Transport concurrency limit",
+ US"Event requests alternate response",
};
static void
write_syslog(int priority, const uschar *s)
{
-int len, pass;
+int len;
int linecount = 0;
if (!syslog_pid && LOGGING(pid))
/* First do a scan through the message in order to determine how many lines
it is going to end up as. Then rescan to output it. */
-for (pass = 0; pass < 2; pass++)
+for (int pass = 0; pass < 2; pass++)
{
- int i;
- int tlen;
const uschar * ss = s;
- for (i = 1, tlen = len; tlen > 0; i++)
+ for (int i = 1, tlen = len; tlen > 0; i++)
{
int plen = tlen;
uschar *nlptr = Ustrchr(ss, '\n');
Returns: updated pointer
*/
-static uschar *
-log_config_info(uschar *ptr, int flags)
+static gstring *
+log_config_info(gstring * g, int flags)
{
-Ustrcpy(ptr, "Exim configuration error");
-ptr += 24;
+g = string_cat(g, US"Exim configuration error");
-if ((flags & (LOG_CONFIG_FOR & ~LOG_CONFIG)) != 0)
- {
- Ustrcpy(ptr, " for ");
- return ptr + 5;
- }
+if (flags & (LOG_CONFIG_FOR & ~LOG_CONFIG))
+ return string_cat(g, US" for ");
-if ((flags & (LOG_CONFIG_IN & ~LOG_CONFIG)) != 0)
- ptr += sprintf(CS ptr, " in line %d of %s", config_lineno, config_filename);
+if (flags & (LOG_CONFIG_IN & ~LOG_CONFIG))
+ g = string_fmt_append(g, " in line %d of %s", config_lineno, config_filename);
-Ustrcpy(ptr, ":\n ");
-return ptr + 4;
+return string_catn(g, US":\n ", 4);
}
void
log_write(unsigned int selector, int flags, const char *format, ...)
{
-uschar * ptr;
-int length;
int paniclogfd;
ssize_t written_len;
+gstring gs = { .size = LOG_BUFFER_SIZE-1, .ptr = 0, .s = log_buffer };
+gstring * g;
va_list ap;
/* If panic_recurseflag is set, we have failed to open the panic log. This is
DEBUG(D_any|D_v)
{
int i;
- ptr = log_buffer;
- Ustrcpy(ptr, "LOG:");
- ptr += 4;
+ g = string_catn(&gs, US"LOG:", 4);
/* Show the selector that was passed into the call. */
{
unsigned int bitnum = log_options[i].bit;
if (bitnum < BITWORDSIZE && selector == BIT(bitnum))
- {
- *ptr++ = ' ';
- Ustrcpy(ptr, log_options[i].name);
- while (*ptr) ptr++;
- }
+ g = string_fmt_append(g, " %s", log_options[i].name);
}
- ptr += sprintf(CS ptr, "%s%s%s%s\n ",
+ g = string_fmt_append(g, "%s%s%s%s\n ",
flags & LOG_MAIN ? " MAIN" : "",
flags & LOG_PANIC ? " PANIC" : "",
(flags & LOG_PANIC_DIE) == LOG_PANIC_DIE ? " DIE" : "",
flags & LOG_REJECT ? " REJECT" : "");
- if (flags & LOG_CONFIG) ptr = log_config_info(ptr, flags);
+ if (flags & LOG_CONFIG) g = log_config_info(g, flags);
+
+ /* We want to be able to log tainted info, but log_buffer is directly
+ malloc'd. So use deliberately taint-nonchecking routines to build into
+ it, trusting that we will never expand the results. */
va_start(ap, format);
- if (!string_vformat(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer)-1, format, ap))
- Ustrcpy(ptr, "**** log string overflowed log buffer ****");
+ i = g->ptr;
+ if (!string_vformat(g, SVFMT_TAINT_NOCHK, format, ap))
+ {
+ g->ptr = i;
+ g = string_cat(g, US"**** log string overflowed log buffer ****");
+ }
va_end(ap);
- while(*ptr) ptr++;
- Ustrcat(ptr, "\n");
- debug_printf("%s", log_buffer);
- }
+ g->size = LOG_BUFFER_SIZE;
+ g = string_catn(g, US"\n", 1);
+ debug_printf("%s", string_from_gstring(g));
+ gs.size = LOG_BUFFER_SIZE-1; /* Having used the buffer for debug output, */
+ gs.ptr = 0; /* reset it for the real use. */
+ gs.s = log_buffer;
+ }
/* If no log file is specified, we are in a mess. */
if (!(flags & (LOG_MAIN|LOG_PANIC|LOG_REJECT)))
/* Create the main message in the log buffer. Do not include the message id
when called by a utility. */
-ptr = log_buffer;
-ptr += sprintf(CS ptr, "%s ", tod_stamp(tod_log));
+g = string_fmt_append(&gs, "%s ", tod_stamp(tod_log));
if (LOGGING(pid))
{
- if (!syslog_pid) pid_position[0] = ptr - log_buffer; /* remember begin … */
- ptr += sprintf(CS ptr, "[%d] ", (int)getpid());
- if (!syslog_pid) pid_position[1] = ptr - log_buffer; /* … and end+1 of the PID */
+ if (!syslog_pid) pid_position[0] = g->ptr; /* remember begin … */
+ g = string_fmt_append(g, "[%d] ", (int)getpid());
+ if (!syslog_pid) pid_position[1] = g->ptr; /* … and end+1 of the PID */
}
if (f.really_exim && message_id[0] != 0)
- ptr += sprintf(CS ptr, "%s ", message_id);
+ g = string_fmt_append(g, "%s ", message_id);
-if (flags & LOG_CONFIG) ptr = log_config_info(ptr, flags);
+if (flags & LOG_CONFIG)
+ g = log_config_info(g, flags);
va_start(ap, format);
-if (!string_vformat(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer)-1, format, ap))
- Ustrcpy(ptr, "**** log string overflowed log buffer ****\n");
-while(*ptr) ptr++;
+ {
+ int i = g->ptr;
+
+ /* We want to be able to log tainted info, but log_buffer is directly
+ malloc'd. So use deliberately taint-nonchecking routines to build into
+ it, trusting that we will never expand the results. */
+
+ if (!string_vformat(g, SVFMT_TAINT_NOCHK, format, ap))
+ {
+ g->ptr = i;
+ g = string_cat(g, US"**** log string overflowed log buffer ****\n");
+ }
+ }
va_end(ap);
/* Add the raw, unrewritten, sender to the message if required. This is done
this way because it kind of fits with LOG_RECIPIENTS. */
if ( flags & LOG_SENDER
- && ptr < log_buffer + LOG_BUFFER_SIZE - 10 - Ustrlen(raw_sender))
- ptr += sprintf(CS ptr, " from <%s>", raw_sender);
+ && g->ptr < LOG_BUFFER_SIZE - 10 - Ustrlen(raw_sender))
+ g = string_fmt_append_f(g, SVFMT_TAINT_NOCHK, " from <%s>", raw_sender);
/* Add list of recipients to the message if required; the raw list,
before rewriting, was saved in raw_recipients. There may be none, if an ACL
discarded them all. */
if ( flags & LOG_RECIPIENTS
- && ptr < log_buffer + LOG_BUFFER_SIZE - 6
+ && g->ptr < LOG_BUFFER_SIZE - 6
&& raw_recipients_count > 0)
{
int i;
- ptr += sprintf(CS ptr, " for");
+ g = string_fmt_append_f(g, SVFMT_TAINT_NOCHK, " for", NULL);
for (i = 0; i < raw_recipients_count; i++)
{
uschar * s = raw_recipients[i];
- if (log_buffer + LOG_BUFFER_SIZE - ptr < Ustrlen(s) + 3) break;
- ptr += sprintf(CS ptr, " %s", s);
+ if (LOG_BUFFER_SIZE - g->ptr < Ustrlen(s) + 3) break;
+ g = string_fmt_append_f(g, SVFMT_TAINT_NOCHK, " %s", s);
}
}
-ptr += sprintf(CS ptr, "\n");
-length = ptr - log_buffer;
+g = string_catn(g, US"\n", 1);
+string_from_gstring(g);
/* Handle loggable errors when running a utility, or when address testing.
Write to log_stderr unless debugging (when it will already have been written),
/* Failing to write to the log is disastrous */
- written_len = write_to_fd_buf(mainlogfd, log_buffer, length);
- if (written_len != length)
+ written_len = write_to_fd_buf(mainlogfd, g->s, g->ptr);
+ if (written_len != g->ptr)
{
- log_write_failed(US"main log", length, written_len);
+ log_write_failed(US"main log", g->ptr, written_len);
/* That function does not return */
}
}
if (flags & LOG_REJECT)
{
- header_line *h;
-
if (header_list && LOGGING(rejected_header))
{
+ gstring * g2;
+ int i;
+
if (recipients_count > 0)
{
- int i;
-
/* List the sender */
- string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
- "Envelope-from: <%s>\n", sender_address);
- while (*ptr) ptr++;
+ g2 = string_fmt_append_f(g, SVFMT_TAINT_NOCHK,
+ "Envelope-from: <%s>\n", sender_address);
+ if (g2) g = g2;
/* List up to 5 recipients */
- string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
- "Envelope-to: <%s>\n", recipients_list[0].address);
- while (*ptr) ptr++;
+ g2 = string_fmt_append_f(g, SVFMT_TAINT_NOCHK,
+ "Envelope-to: <%s>\n", recipients_list[0].address);
+ if (g2) g = g2;
for (i = 1; i < recipients_count && i < 5; i++)
{
- string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer), " <%s>\n",
- recipients_list[i].address);
- while (*ptr) ptr++;
+ g2 = string_fmt_append_f(g, SVFMT_TAINT_NOCHK,
+ " <%s>\n", recipients_list[i].address);
+ if (g2) g = g2;
}
if (i < recipients_count)
{
- (void)string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
- " ...\n");
- while (*ptr) ptr++;
+ g2 = string_fmt_append_f(g, SVFMT_TAINT_NOCHK, " ...\n", NULL);
+ if (g2) g = g2;
}
}
/* A header with a NULL text is an unfilled in Received: header */
- for (h = header_list; h; h = h->next) if (h->text)
+ for (header_line * h = header_list; h; h = h->next) if (h->text)
{
- BOOL fitted = string_format(ptr, LOG_BUFFER_SIZE - (ptr-log_buffer),
- "%c %s", h->type, h->text);
- while(*ptr) ptr++;
- if (!fitted) /* Buffer is full; truncate */
+ g2 = string_fmt_append_f(g, SVFMT_TAINT_NOCHK,
+ "%c %s", h->type, h->text);
+ if (g2)
+ g = g2;
+ else /* Buffer is full; truncate */
{
- ptr -= 100; /* For message and separator */
- if (ptr[-1] == '\n') ptr--;
- Ustrcpy(ptr, "\n*** truncated ***\n");
- while (*ptr) ptr++;
+ g->ptr -= 100; /* For message and separator */
+ if (g->s[g->ptr-1] == '\n') g->ptr--;
+ g = string_cat(g, US"\n*** truncated ***\n");
break;
}
}
-
- length = ptr - log_buffer;
}
/* Write to syslog or to a log file */
if ( logging_mode & LOG_MODE_SYSLOG
&& (syslog_duplication || !(flags & LOG_PANIC)))
- write_syslog(LOG_NOTICE, log_buffer);
+ write_syslog(LOG_NOTICE, string_from_gstring(g));
/* Check for a change to the rejectlog file name when datestamping is in
operation. This happens at midnight, at which point we want to roll over
if (fstat(rejectlogfd, &statbuf) >= 0) rejectlog_inode = statbuf.st_ino;
}
- written_len = write_to_fd_buf(rejectlogfd, log_buffer, length);
- if (written_len != length)
+ written_len = write_to_fd_buf(rejectlogfd, g->s, g->ptr);
+ if (written_len != g->ptr)
{
- log_write_failed(US"reject log", length, written_len);
+ log_write_failed(US"reject log", g->ptr, written_len);
/* That function does not return */
}
}
if (flags & LOG_PANIC)
{
if (log_stderr && log_stderr != debug_file && !mua_wrapper)
- fprintf(log_stderr, "%s", CS log_buffer);
+ fprintf(log_stderr, "%s", CS string_from_gstring(g));
if (logging_mode & LOG_MODE_SYSLOG)
write_syslog(LOG_ALERT, log_buffer);
i = i; /* compiler quietening */
}
- written_len = write_to_fd_buf(paniclogfd, log_buffer, length);
- if (written_len != length)
+ written_len = write_to_fd_buf(paniclogfd, g->s, g->ptr);
+ if (written_len != g->ptr)
{
int save_errno = errno;
write_syslog(LOG_CRIT, log_buffer);
sprintf(CS log_buffer, "write failed on panic log: length=%d result=%d "
- "errno=%d (%s)", length, (int)written_len, save_errno, strerror(save_errno));
- write_syslog(LOG_CRIT, log_buffer);
+ "errno=%d (%s)", g->ptr, (int)written_len, save_errno, strerror(save_errno));
+ write_syslog(LOG_CRIT, string_from_gstring(g));
flags |= LOG_PANIC_DIE;
}
git://git.exim.org / users / heiko / exim.git / blobdiff