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Avoid passing NULL to printf while debugging.

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This commit is contained in:
Werner Koch 2008-08-19 19:36:42 +00:00
parent 8e89644451
commit 39a5a34eab
2 changed files with 28 additions and 14 deletions
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6
common/ChangeLog
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@ -1,3 +1,9 @@
2008-08-19 Werner Koch <wk@g10code.com>
* iobuf.c: Avoid passing a NULL (iobuf_t)->desc to the log
function. Should in general never be NULL, but well. Reported by
M. Heneka.
2008-06-26 Werner Koch <wk@g10code.com>
* estream.c (es_write_sanitized): Loose check for control

36
common/iobuf.c
View File

@ -1,6 +1,6 @@
/* iobuf.c - File Handling for OpenPGP.
* Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2006,
* 2007 Free Software Foundation, Inc.
* 2007, 2008 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
@ -78,7 +78,7 @@
we are using the low-evel backend.
fp_or_fd_t
Is the type we use for the backend stream or fiel descriptor.
Is the type we use for the backend stream or file descriptor.
INVALID_FP, FILEP_OR_FD_FOR_STDIN, FILEP_OR_FD_FOR_STDOUT
Are macros defined depending on the used backend.
@ -1012,7 +1012,7 @@ print_chain (iobuf_t a)
(byte *) & desc, &dummy_len);
log_debug ("iobuf chain: %d.%d `%s' filter_eof=%d start=%d len=%d\n",
a->no, a->subno, desc, a->filter_eof,
a->no, a->subno, desc?desc:"?", a->filter_eof,
(int) a->d.start, (int) a->d.len);
}
}
@ -1069,7 +1069,8 @@ iobuf_close (iobuf_t a)
log_error ("iobuf_flush failed on close: %s\n", gpg_strerror (rc));
if (DBG_IOBUF)
log_debug ("iobuf-%d.%d: close `%s'\n", a->no, a->subno, a->desc);
log_debug ("iobuf-%d.%d: close `%s'\n", a->no, a->subno,
a->desc?a->desc:"?");
if (a->filter && (rc = a->filter (a->filter_ov, IOBUFCTRL_FREE,
a->chain, NULL, &dummy_len)))
log_error ("IOBUFCTRL_FREE failed on close: %s\n", gpg_strerror (rc));
@ -1336,7 +1337,8 @@ iobuf_create (const char *fname)
file_filter (fcx, IOBUFCTRL_DESC, NULL, (byte *) & a->desc, &len);
file_filter (fcx, IOBUFCTRL_INIT, NULL, NULL, &len);
if (DBG_IOBUF)
log_debug ("iobuf-%d.%d: create `%s'\n", a->no, a->subno, a->desc);
log_debug ("iobuf-%d.%d: create `%s'\n", a->no, a->subno,
a->desc?a->desc:"?");
return a;
}
@ -1369,7 +1371,8 @@ iobuf_append (const char *fname)
file_filter (fcx, IOBUFCTRL_DESC, NULL, (byte *) & a->desc, &len);
file_filter (fcx, IOBUFCTRL_INIT, NULL, NULL, &len);
if (DBG_IOBUF)
log_debug ("iobuf-%d.%d: append `%s'\n", a->no, a->subno, a->desc);
log_debug ("iobuf-%d.%d: append `%s'\n", a->no, a->subno,
a->desc?a->desc:"?");
return a;
}
@ -1397,7 +1400,8 @@ iobuf_openrw (const char *fname)
file_filter (fcx, IOBUFCTRL_DESC, NULL, (byte *) & a->desc, &len);
file_filter (fcx, IOBUFCTRL_INIT, NULL, NULL, &len);
if (DBG_IOBUF)
log_debug ("iobuf-%d.%d: openrw `%s'\n", a->no, a->subno, a->desc);
log_debug ("iobuf-%d.%d: openrw `%s'\n", a->no, a->subno,
a->desc?a->desc:"?");
return a;
}
@ -1410,7 +1414,8 @@ iobuf_ioctl (iobuf_t a, int cmd, int intval, void *ptrval)
{ /* keep system filepointer/descriptor open */
if (DBG_IOBUF)
log_debug ("iobuf-%d.%d: ioctl `%s' keep=%d\n",
a ? a->no : -1, a ? a->subno : -1, a ? a->desc : "?",
a ? a->no : -1, a ? a->subno : -1,
a && a->desc ? a->desc : "?",
intval);
for (; a; a = a->chain)
if (!a->chain && a->filter == file_filter)
@ -1445,7 +1450,8 @@ iobuf_ioctl (iobuf_t a, int cmd, int intval, void *ptrval)
{ /* disallow/allow caching */
if (DBG_IOBUF)
log_debug ("iobuf-%d.%d: ioctl `%s' no_cache=%d\n",
a ? a->no : -1, a ? a->subno : -1, a ? a->desc : "?",
a ? a->no : -1, a ? a->subno : -1,
a && a->desc? a->desc : "?",
intval);
for (; a; a = a->chain)
if (!a->chain && a->filter == file_filter)
@ -1546,7 +1552,8 @@ iobuf_push_filter2 (iobuf_t a,
if (DBG_IOBUF)
{
log_debug ("iobuf-%d.%d: push `%s'\n", a->no, a->subno, a->desc);
log_debug ("iobuf-%d.%d: push `%s'\n", a->no, a->subno,
a->desc?a->desc:"?");
print_chain (a);
}
@ -1573,7 +1580,8 @@ pop_filter (iobuf_t a, int (*f) (void *opaque, int control,
BUG ();
if (DBG_IOBUF)
log_debug ("iobuf-%d.%d: pop `%s'\n", a->no, a->subno, a->desc);
log_debug ("iobuf-%d.%d: pop `%s'\n", a->no, a->subno,
a->desc?a->desc:"?");
if (!a->filter)
{ /* this is simple */
b = a->chain;
@ -1660,7 +1668,7 @@ underflow (iobuf_t a)
iobuf_t b = a->chain;
if (DBG_IOBUF)
log_debug ("iobuf-%d.%d: pop `%s' in underflow\n",
a->no, a->subno, a->desc);
a->no, a->subno, a->desc?a->desc:"?");
xfree (a->d.buf);
xfree (a->real_fname);
memcpy (a, b, sizeof *a);
@ -1733,8 +1741,8 @@ underflow (iobuf_t a)
{
iobuf_t b = a->chain;
if (DBG_IOBUF)
log_debug ("iobuf-%d.%d: pop `%s' in underflow (!len)\n",
a->no, a->subno, a->desc);
log_debug ("iobuf-%d.%d: pop in underflow (!len)\n",
a->no, a->subno);
xfree (a->d.buf);
xfree (a->real_fname);
memcpy (a, b, sizeof *a);