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* posix/wordexp.c (w_addword): Free word if realloc fails and it

Browse Source 
was allocated here.  [Coverity CID 219]

	* posix/getconf.c (print_all): Free confstr data after printing.
	[Coverity CID 218]

	* sysdeps/posix/getaddrinfo.c (gaih_inet): Free canon string if
	list allocation fails.  [Coverity CID 215]

	* nss/nsswitch.c (__nss_configure_lookup): Fix loop end condition.
	[Coverity CID 213]

	* argp/argp-help.c (hol_entry_cmp): Don't call canon_doc_option if
	string is NULL.  [Coverity CID 212]
	* argp/Makefile: Add rules to build and run bug-argp1.
	* argp/bug-argp1.c: New file.

	* io/ftw.c (ftw_dir): Use __rawmemchr instead of strchr to find
	end of string.
	* stdlib/canonicalize.c (__realpath): Likewise.

	* locale/programs/ld-time.c (time_finish): Don't dereference NULL
	pointer.  [Coverity CID 206]

	* elf/dl-dst.h (DL_DST_REQUIRED): Be prepared for missing link map
	in statically linked code.
	* elf/dl-load.c (_dl_dst_substitute): When replacing ORIGIN in
	statically built code, be prepared to have no link map.
	[Coverity CID 205]

	* argp/argp-help.c (fill_in_uparams): Handle STATE==NULL in
	dgettext calls. [Coverity CID 204]

	* argp/argp-help.c (struct uparams): Remove valid member.  Change
	the one user.
	(uparam_names): Reduce size.  Avoid relative relocations.
	Moved to read-only segment.
	(fill_in_uparams): Update for new layout.

	* sysdeps/unix/sysv/linux/ifaddrs.c (getifaddrs): Parameter can be
	assumed to always be != NULL. [Coverity CID 202]

	* argp/argp-help.c (hol_entry_help): Remove some dead code
	[Coverity CID 200].

	* nis/nss_nis/nis-service.c (_nss_nis_getservbyport_r): Optimize
	away a few more unconditional yperr2nss calls.
	(_nss_nis_getservbyname_r): Likewise.
This commit is contained in:
Ulrich Drepper 2006-05-10 00:03:41 +00:00
parent be434a72b0
commit e7c8359e43
16 changed files with 182 additions and 72 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
ChangeLog
View File

@ -1,3 +1,54 @@
2006-05-09 Ulrich Drepper <drepper@redhat.com>
* posix/wordexp.c (w_addword): Free word if realloc fails and it
was allocated here. [Coverity CID 219]
* posix/getconf.c (print_all): Free confstr data after printing.
[Coverity CID 218]
* sysdeps/posix/getaddrinfo.c (gaih_inet): Free canon string if
list allocation fails. [Coverity CID 215]
* nss/nsswitch.c (__nss_configure_lookup): Fix loop end condition.
[Coverity CID 213]
* argp/argp-help.c (hol_entry_cmp): Don't call canon_doc_option if
string is NULL. [Coverity CID 212]
* argp/Makefile: Add rules to build and run bug-argp1.
* argp/bug-argp1.c: New file.
* io/ftw.c (ftw_dir): Use __rawmemchr instead of strchr to find
end of string.
* stdlib/canonicalize.c (__realpath): Likewise.
* locale/programs/ld-time.c (time_finish): Don't dereference NULL
pointer. [Coverity CID 206]
* elf/dl-dst.h (DL_DST_REQUIRED): Be prepared for missing link map
in statically linked code.
* elf/dl-load.c (_dl_dst_substitute): When replacing ORIGIN in
statically built code, be prepared to have no link map.
[Coverity CID 205]
* argp/argp-help.c (fill_in_uparams): Handle STATE==NULL in
dgettext calls. [Coverity CID 204]
* argp/argp-help.c (struct uparams): Remove valid member. Change
the one user.
(uparam_names): Reduce size. Avoid relative relocations.
Moved to read-only segment.
(fill_in_uparams): Update for new layout.
* sysdeps/unix/sysv/linux/ifaddrs.c (getifaddrs): Parameter can be
assumed to always be != NULL. [Coverity CID 202]
* argp/argp-help.c (hol_entry_help): Remove some dead code
[Coverity CID 200].
* nis/nss_nis/nis-service.c (_nss_nis_getservbyport_r): Optimize
away a few more unconditional yperr2nss calls.
(_nss_nis_getservbyname_r): Likewise.
2006-05-06 Ulrich Drepper <drepper@redhat.com>
* sysdeps/generic/ldsodefs.h: Remove support for non-core

6
argp/Makefile
View File

@ -1,4 +1,4 @@
# Copyright (C) 1997, 2002, 2003 Free Software Foundation, Inc.
# Copyright (C) 1997, 2002, 2003, 2006 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
@ -26,10 +26,12 @@ distribute = argp-fmtstream.h argp-namefrob.h
routines = $(addprefix argp-, ba fmtstream fs-xinl help parse pv \
pvh xinl eexst)
tests = argp-test tst-argp1
tests = argp-test tst-argp1 bug-argp1
CFLAGS-argp-help.c = $(uses-callbacks) -fexceptions
CFLAGS-argp-parse.c = $(uses-callbacks)
CFLAGS-argp-fmtstream.c = -fexceptions
bug-argp1-ARGS = -- --help
include ../Rules

64
argp/argp-help.c
View File

@ -1,5 +1,5 @@
/* Hierarchial argument parsing help output
Copyright (C) 1995-2003, 2004, 2005 Free Software Foundation, Inc.
Copyright (C) 1995-2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Miles Bader <miles@gnu.ai.mit.edu>.
@ -128,40 +128,37 @@ struct uparams
int header_col;
int usage_indent;
int rmargin;
int valid; /* True when the values in here are valid. */
};
/* This is a global variable, as user options are only ever read once. */
static struct uparams uparams = {
DUP_ARGS, DUP_ARGS_NOTE,
SHORT_OPT_COL, LONG_OPT_COL, DOC_OPT_COL, OPT_DOC_COL, HEADER_COL,
USAGE_INDENT, RMARGIN,
0
USAGE_INDENT, RMARGIN
};
/* A particular uparam, and what the user name is. */
struct uparam_name
{
const char *name; /* User name. */
int is_bool; /* Whether it's `boolean'. */
size_t uparams_offs; /* Location of the (int) field in UPARAMS. */
const char name[14]; /* User name. */
bool is_bool; /* Whether it's `boolean'. */
uint8_t uparams_offs; /* Location of the (int) field in UPARAMS. */
};
/* The name-field mappings we know about. */
static const struct uparam_name uparam_names[] =
{
{ "dup-args", 1, offsetof (struct uparams, dup_args) },
{ "dup-args-note", 1, offsetof (struct uparams, dup_args_note) },
{ "short-opt-col", 0, offsetof (struct uparams, short_opt_col) },
{ "long-opt-col", 0, offsetof (struct uparams, long_opt_col) },
{ "doc-opt-col", 0, offsetof (struct uparams, doc_opt_col) },
{ "opt-doc-col", 0, offsetof (struct uparams, opt_doc_col) },
{ "header-col", 0, offsetof (struct uparams, header_col) },
{ "usage-indent", 0, offsetof (struct uparams, usage_indent) },
{ "rmargin", 0, offsetof (struct uparams, rmargin) },
{ 0 }
{ "dup-args", true, offsetof (struct uparams, dup_args) },
{ "dup-args-note", true, offsetof (struct uparams, dup_args_note) },
{ "short-opt-col", false, offsetof (struct uparams, short_opt_col) },
{ "long-opt-col", false, offsetof (struct uparams, long_opt_col) },
{ "doc-opt-col", false, offsetof (struct uparams, doc_opt_col) },
{ "opt-doc-col", false, offsetof (struct uparams, opt_doc_col) },
{ "header-col", false, offsetof (struct uparams, header_col) },
{ "usage-indent", false, offsetof (struct uparams, usage_indent) },
{ "rmargin", false, offsetof (struct uparams, rmargin) }
};
#define nuparam_names (sizeof (uparam_names) / sizeof (uparam_names[0]))
/* Read user options from the environment, and fill in UPARAMS appropiately. */
static void
@ -217,22 +214,27 @@ fill_in_uparams (const struct argp_state *state)
SKIPWS (arg);
}
for (un = uparam_names; un->name; un++)
un = uparam_names;
size_t u;
for (u = 0; u < nuparam_names; ++un, ++u)
if (strlen (un->name) == var_len
&& strncmp (var, un->name, var_len) == 0)
{
if (unspec && !un->is_bool)
__argp_failure (state, 0, 0,
dgettext (state->root_argp->argp_domain, "\
dgettext (state == NULL ? NULL
: state->root_argp->argp_domain,
"\
%.*s: ARGP_HELP_FMT parameter requires a value"),
(int) var_len, var);
else
*(int *)((char *)&uparams + un->uparams_offs) = val;
break;
}
if (! un->name)
if (u == nuparam_names)
__argp_failure (state, 0, 0,
dgettext (state->root_argp->argp_domain, "\
dgettext (state == NULL ? NULL
: state->root_argp->argp_domain, "\
%.*s: Unknown ARGP_HELP_FMT parameter"),
(int) var_len, var);
@ -243,7 +245,8 @@ fill_in_uparams (const struct argp_state *state)
else if (*var)
{
__argp_failure (state, 0, 0,
dgettext (state->root_argp->argp_domain,
dgettext (state == NULL ? NULL
: state->root_argp->argp_domain,
"Garbage in ARGP_HELP_FMT: %s"), var);
break;
}
@ -759,9 +762,9 @@ hol_entry_cmp (const struct hol_entry *entry1,
const char *long2 = hol_entry_first_long (entry2);
if (doc1)
doc1 = canon_doc_option (&long1);
doc1 = long1 != NULL && canon_doc_option (&long1);
if (doc2)
doc2 = canon_doc_option (&long2);
doc2 = long2 != NULL && canon_doc_option (&long2);
if (doc1 != doc2)
/* `documentation' options always follow normal options (or
@ -1129,19 +1132,13 @@ hol_entry_help (struct hol_entry *entry, const struct argp_state *state,
else
/* A real long option. */
{
int first_long_opt = 1;
__argp_fmtstream_set_wmargin (stream, uparams.long_opt_col);
for (opt = real, num = entry->num; num > 0; opt++, num--)
if (opt->name && ovisible (opt))
{
comma (uparams.long_opt_col, &pest);
__argp_fmtstream_printf (stream, "--%s", opt->name);
if (first_long_opt || uparams.dup_args)
arg (real, "=%s", "[=%s]", state->root_argp->argp_domain,
stream);
else if (real->arg)
hhstate->suppressed_dup_arg = 1;
arg (real, "=%s", "[=%s]", state->root_argp->argp_domain, stream);
}
}
@ -1555,8 +1552,7 @@ _help (const struct argp *argp, const struct argp_state *state, FILE *stream,
__flockfile (stream);
#endif
if (! uparams.valid)
fill_in_uparams (state);
fill_in_uparams (state);
fs = __argp_make_fmtstream (stream, 0, uparams.rmargin, 0);
if (! fs)

26
argp/bug-argp1.c Normal file
View File

@ -0,0 +1,26 @@
#include <argp.h>
static const struct argp_option test_options[] =
{
{ NULL, 'a', NULL, OPTION_DOC, NULL },
{ NULL, 'b', NULL, OPTION_DOC, NULL },
{ NULL, 0, NULL, 0, NULL }
};
static struct argp test_argp =
{
test_options
};
static int
do_test (int argc, char *argv[])
{
int i;
argp_parse (&test_argp, argc, argv, 0, &i, NULL);
return 0;
}
#define TEST_FUNCTION do_test (argc, argv)
#include "../test-skeleton.c"

15
elf/dl-dst.h
View File

@ -1,5 +1,5 @@
/* Handling of dynamic sring tokens.
Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
Copyright (C) 1999,2001,2002,2003,2004,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -50,6 +50,7 @@
\
First get the origin string if it is not available yet. \
This can only happen for the map of the executable. */ \
DL_DST_REQ_STATIC \
if ((l)->l_origin == NULL) \
{ \
assert ((l)->l_name[0] == '\0'); \
@ -66,6 +67,18 @@
\
__len; })
#ifdef SHARED
# define DL_DST_REQ_STATIC /* nothing */
#else
# define DL_DST_REQ_STATIC \
if ((l) == NULL) \
{ \
const char *origin = _dl_get_origin (); \
origin_len = (origin && origin != (char *) -1 ? strlen (origin) : 0); \
} \
else
#endif
#ifndef IS_IN_rtld
# define _dl_get_origin GLRO(dl_get_origin)
# define _dl_dst_substitute GLRO(dl_dst_substitute)

9
elf/dl-load.c
View File

@ -266,7 +266,14 @@ _dl_dst_substitute (struct link_map *l, const char *name, char *result,
++name;
if ((len = is_dst (start, name, "ORIGIN", is_path,
INTUSE(__libc_enable_secure))) != 0)
repl = l->l_origin;
{
#ifndef SHARED
if (l == NULL)
repl = _dl_get_origin ();
else
#endif
repl = l->l_origin;
}
else if ((len = is_dst (start, name, "PLATFORM", is_path, 0)) != 0)
repl = GLRO(dl_platform);
else if ((len = is_dst (start, name, "LIB", is_path, 0)) != 0)

2
io/ftw.c
View File

@ -526,7 +526,7 @@ fail:
/* Next, update the `struct FTW' information. */
++data->ftw.level;
startp = strchr (data->dirbuf, '\0');
startp = __rawmemchr (data->dirbuf, '\0');
/* There always must be a directory name. */
assert (startp != data->dirbuf);
if (startp[-1] != '/')

13
locale/programs/ld-time.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1995-2002, 2003, 2004, 2005 Free Software Foundation, Inc.
/* Copyright (C) 1995-2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.org>, 1995.
@ -468,9 +468,14 @@ No definition for %s category found"), "LC_TIME"));
wstr = wstr ? wcschr (wstr + 1, L':') : NULL; /* end start */
wstr = wstr ? wcschr (wstr + 1, L':') : NULL; /* end end */
time->era_entries[idx].wname = (uint32_t *) wstr + 1;
wstr = wstr ? wcschr (wstr + 1, L':') : NULL; /* end name */
*wstr = L'\0';
time->era_entries[idx].wformat = (uint32_t *) wstr + 1;
if (wstr != NULL)
{
wstr = wcschr (wstr + 1, L':'); /* end name */
*wstr = L'\0';
time->era_entries[idx].wformat = (uint32_t *) wstr + 1;
}
else
time->era_entries[idx].wformat = NULL;
}
}

29
nis/nss_nis/nis-service.c
View File

@ -280,14 +280,13 @@ _nss_nis_getservbyname_r (const char *name, const char *protocol,
char *result;
int int_len;
enum nss_status status = yperr2nss (yp_match (domain,
"services.byservicename", key,
keylen, &result, &int_len));
int status = yp_match (domain, "services.byservicename", key,
keylen, &result, &int_len);
size_t len = int_len;
/* If we found the key, it's ok and parse the result. If not,
fall through and parse the complete table. */
if (__builtin_expect (status == NSS_STATUS_SUCCESS, 1))
if (__builtin_expect (status == YPERR_SUCCESS, 1))
{
if (__builtin_expect ((size_t) (len + 1) > buflen, 0))
{
@ -317,7 +316,7 @@ _nss_nis_getservbyname_r (const char *name, const char *protocol,
/* Check if it is safe to rely on services.byservicename. */
if (_nsl_default_nss () & NSS_FLAG_SERVICES_AUTHORITATIVE)
return status;
return yperr2nss (status);
struct ypall_callback ypcb;
struct search_t req;
@ -332,10 +331,10 @@ _nss_nis_getservbyname_r (const char *name, const char *protocol,
req.buflen = buflen;
req.errnop = errnop;
req.status = NSS_STATUS_NOTFOUND;
status = yperr2nss (yp_all (domain, "services.byname", &ypcb));
status = yp_all (domain, "services.byname", &ypcb);
if (status != NSS_STATUS_SUCCESS)
return status;
if (__builtin_expect (status != YPERR_SUCCESS, 0))
return yperr2nss (status);
return req.status;
}
@ -362,14 +361,13 @@ _nss_nis_getservbyport_r (int port, const char *protocol,
char *result;
int int_len;
enum nss_status status = yperr2nss (yp_match (domain, "services.byname",
key, keylen, &result,
&int_len));
int status = yp_match (domain, "services.byname", key, keylen, &result,
&int_len);
size_t len = int_len;
/* If we found the key, it's ok and parse the result. If not,
fall through and parse the complete table. */
if (status == NSS_STATUS_SUCCESS)
if (__builtin_expect (status == YPERR_SUCCESS, 1))
{
if (__builtin_expect ((size_t) (len + 1) > buflen, 0))
{
@ -414,11 +412,10 @@ _nss_nis_getservbyport_r (int port, const char *protocol,
req.buflen = buflen;
req.errnop = errnop;
req.status = NSS_STATUS_NOTFOUND;
enum nss_status status = yperr2nss (yp_all (domain, "services.byname",
&ypcb));
int status = yp_all (domain, "services.byname", &ypcb);
if (status != NSS_STATUS_SUCCESS)
return status;
if (__builtin_expect (status != YPERR_SUCCESS, 0))
return yperr2nss (status);
return req.status;
}

1
nptl/sysdeps/pthread/unwind-forcedunwind.c
View File

@ -31,6 +31,7 @@ static _Unwind_Reason_Code (*libgcc_s_forcedunwind)
static _Unwind_Word (*libgcc_s_getcfa) (struct _Unwind_Context *);
void
__attribute_noinline__
pthread_cancel_init (void)
{
void *resume, *personality, *forcedunwind, *getcfa;

7
nss/nsswitch.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005
/* Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -70,6 +70,7 @@ static const struct
#include "databases.def"
#undef DEFINE_DATABASE
};
#define ndatabases (sizeof (databases) / sizeof (databases[0]))
__libc_lock_define_initialized (static, lock)
@ -211,7 +212,7 @@ __nss_configure_lookup (const char *dbname, const char *service_line)
service_user *new_db;
size_t cnt;
for (cnt = 0; cnt < sizeof databases; ++cnt)
for (cnt = 0; cnt < ndatabases; ++cnt)
{
int cmp = strcmp (dbname, databases[cnt].name);
if (cmp == 0)
@ -223,7 +224,7 @@ __nss_configure_lookup (const char *dbname, const char *service_line)
}
}
if (cnt == sizeof databases)
if (cnt == ndatabases)
{
__set_errno (EINVAL);
return -1;

1
posix/getconf.c
View File

@ -981,6 +981,7 @@ print_all (const char *path)
if (confstr (c->call_name, cvalue, clen) != clen)
error (3, errno, "confstr");
printf ("%.*s\n", (int) clen, cvalue);
free (cvalue);
break;
}
}

7
posix/wordexp.c
View File

@ -1,5 +1,5 @@
/* POSIX.2 wordexp implementation.
Copyright (C) 1997-2002, 2003, 2005 Free Software Foundation, Inc.
Copyright (C) 1997-2002, 2003, 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Tim Waugh <tim@cyberelk.demon.co.uk>.
@ -166,6 +166,7 @@ w_addword (wordexp_t *pwordexp, char *word)
/* Add a word to the wordlist */
size_t num_p;
char **new_wordv;
bool allocated = false;
/* Internally, NULL acts like "". Convert NULLs to "" before
* the caller sees them.
@ -175,6 +176,7 @@ w_addword (wordexp_t *pwordexp, char *word)
word = __strdup ("");
if (word == NULL)
goto no_space;
allocated = true;
}
num_p = 2 + pwordexp->we_wordc + pwordexp->we_offs;
@ -187,6 +189,9 @@ w_addword (wordexp_t *pwordexp, char *word)
return 0;
}
if (allocated)
free (word);
no_space:
return WRDE_NOSPACE;
}

4
stdlib/canonicalize.c
View File

@ -1,5 +1,5 @@
/* Return the canonical absolute name of a given file.
Copyright (C) 1996-2002, 2004, 2005 Free Software Foundation, Inc.
Copyright (C) 1996-2002, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -91,7 +91,7 @@ __realpath (const char *name, char *resolved)
rpath[0] = '\0';
goto error;
}
dest = strchr (rpath, '\0');
dest = __rawmemchr (rpath, '\0');
}
else
{

11
sysdeps/posix/getaddrinfo.c
View File

@ -1042,12 +1042,16 @@ gaih_inet (const char *name, const struct gaih_service *service,
else
socklen = sizeof (struct sockaddr_in);
struct addrinfo *pai_1st = pai;
for (st2 = st; st2 != NULL; st2 = st2->next)
{
struct addrinfo *ai;
ai = *pai = malloc (sizeof (struct addrinfo) + socklen);
if (ai == NULL)
return -EAI_MEMORY;
{
free ((char *) canon);
return -EAI_MEMORY;
}
ai->ai_flags = req->ai_flags;
ai->ai_family = family;
@ -1065,6 +1069,10 @@ gaih_inet (const char *name, const struct gaih_service *service,
#endif /* _HAVE_SA_LEN */
ai->ai_addr->sa_family = family;
/* In case of an allocation error the list must be NULL
terminated. */
ai->ai_next = NULL;
if (family == AF_INET6)
{
struct sockaddr_in6 *sin6p =
@ -1088,7 +1096,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
pai = &(ai->ai_next);
}
*pai = NULL;
++*naddrs;

8
sysdeps/unix/sysv/linux/ifaddrs.c
View File

@ -1,5 +1,5 @@
/* getifaddrs -- get names and addresses of all network interfaces
Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -358,8 +358,7 @@ getifaddrs (struct ifaddrs **ifap)
ifa_data. */
int result = 0;
if (ifap)
*ifap = NULL;
*ifap = NULL;
if (! __no_netlink_support && __netlink_open (&nh) < 0)
{
@ -840,8 +839,7 @@ getifaddrs (struct ifaddrs **ifap)
memmove (ifas, &ifas[newlink], sizeof (struct ifaddrs_storage));
}
if (ifap != NULL)
*ifap = &ifas[0].ifa;
*ifap = &ifas[0].ifa;
exit_free:
__netlink_free_handle (&nh);