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Add printf format checks to afs_com_err()

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Add gcc printf format checks to the afs_com_err() functions

Deal with the fallout, in particular change callers which pass
an empty format string to pass NULL instead - the com_err functions
already permit this alternate use.

There's a couple of real bugs here - in one case, we attempt to
print a NULL pointer, rather than a security index, and in the other
we supply a NULL format string, rather than the string we meant to
print.

Change-Id: Icd48f92a4447d4af3dba9a4caa2ff73c1657ad47
Reviewed-on: http://gerrit.openafs.org/794
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
This commit is contained in:
Simon Wilkinson 2009-11-07 22:31:08 +00:00 committed by Derrick Brashear
parent 68463b6ab9
commit 8229e668de
9 changed files with 53 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/aklog/klog.c
View File

@ -404,7 +404,7 @@ CommandProc(struct cmd_syndesc *as, void *arock)
/* initialize_rx_error_table(); */
if (!(tdir = afsconf_Open(AFSDIR_CLIENT_ETC_DIRPATH))) {
afs_com_err(rn, 0, "can't get afs configuration (afsconf_Open(%s))",
rn, AFSDIR_CLIENT_ETC_DIRPATH);
AFSDIR_CLIENT_ETC_DIRPATH);
KLOGEXIT(1);
}
@ -450,10 +450,10 @@ CommandProc(struct cmd_syndesc *as, void *arock)
if (as->parms[aKRBREALM].items) {
code = krb5_set_default_realm(k5context,
(const char *) as->parms[aKRBREALM].items);
as->parms[aKRBREALM].items->data);
if (code) {
afs_com_err(rn, code, "Can't make <%s> the default realm",
as->parms[aKRBREALM].items);
as->parms[aKRBREALM].items->data);
KLOGEXIT(code);
}
}
@ -623,7 +623,7 @@ CommandProc(struct cmd_syndesc *as, void *arock)
break;
Failed:
if (code)
afs_com_err(rn, code, what);
afs_com_err(rn, code, "%s", what);
if (writeTicketFile) {
if (cc) {
krb5_cc_close(k5context, cc);
@ -712,7 +712,7 @@ CommandProc(struct cmd_syndesc *as, void *arock)
k5_to_k4_name(k5context, afscred->client, aclient);
code = whoami(atoken, cellconfig, aclient, &viceid);
if (code) {
afs_com_err(rn, code, "Can't get your viceid", cellconfig->name);
afs_com_err(rn, code, "Can't get your viceid for cell %s", cellconfig->name);
*aclient->name = 0;
} else
snprintf(aclient->name, MAXKTCNAMELEN-1, "AFS ID %d", viceid);

48
src/bucoord/commands.c
View File

@ -120,7 +120,7 @@ getSPEntries(afs_uint32 server, afs_int32 partition,
if (!(*ss)) {
*ss = (struct serversort *)malloc(sizeof(struct serversort));
if (!(*ss)) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
*ss = 0;
return (BC_NOMEM);
}
@ -141,7 +141,7 @@ getSPEntries(afs_uint32 server, afs_int32 partition,
if (!(*ps)) {
*ps = (struct partitionsort *)malloc(sizeof(struct partitionsort));
if (!(*ps)) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
free(*ss);
*ps = 0;
*ss = 0;
@ -286,7 +286,7 @@ EvalVolumeSet2(struct bc_config *aconfig,
entries[e].serverPartition[ei], &servers,
&ss, &ps);
if (tcode) {
afs_com_err(whoami, tcode, "");
afs_com_err(whoami, tcode, NULL);
ERROR(tcode);
}
@ -307,7 +307,7 @@ EvalVolumeSet2(struct bc_config *aconfig,
if ((strcmp(&entries[e].name[l], ".backup") == 0)
|| (strcmp(&entries[e].name[l], ".readonly")
== 0)
|| (strcmp(&entries[e].name[l], "") == 0))
|| (strcmp(&entries[e].name[l], NULL) == 0))
add = 0;
}
}
@ -318,14 +318,14 @@ EvalVolumeSet2(struct bc_config *aconfig,
tvd = (struct bc_volumeDump *)
malloc(sizeof(struct bc_volumeDump));
if (!tvd) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
ERROR(BC_NOMEM);
}
memset(tvd, 0, sizeof(*tvd));
tvd->name = (char *)malloc(strlen(entries[e].name) + 10);
if (!(tvd->name)) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
free(tvd);
ERROR(BC_NOMEM);
}
@ -581,7 +581,7 @@ EvalVolumeSet1(struct bc_config *aconfig,
entry.serverPartition[foundentry], &servers,
&ss, &ps);
if (code) {
afs_com_err(whoami, code, "");
afs_com_err(whoami, code, NULL);
return (code);
}
@ -589,14 +589,14 @@ EvalVolumeSet1(struct bc_config *aconfig,
tvd = (struct bc_volumeDump *)
malloc(sizeof(struct bc_volumeDump));
if (!tvd) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return (BC_NOMEM);
}
memset(tvd, 0, sizeof(*tvd));
tvd->name = (char *)malloc(strlen(entry.name) + 10);
if (!(tvd->name)) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
free(tvd);
return (BC_NOMEM);
}
@ -744,7 +744,7 @@ bc_CopyString(char *astring)
tlen = strlen(astring);
tp = (char *)malloc(tlen + 1); /* don't forget the terminating null */
if (!tp) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return (tp);
}
strcpy(tp, astring);
@ -777,7 +777,7 @@ concatParams(struct cmd_item *itemPtr)
string = (char *)malloc(length); /* allocate the string */
if (!string) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return (NULL);
}
string[0] = 0;
@ -1195,14 +1195,14 @@ bc_VolRestoreCmd(struct cmd_syndesc *as, void *arock)
/* build list of volume items */
tvol = (struct bc_volumeDump *)malloc(sizeof(struct bc_volumeDump));
if (!tvol) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return BC_NOMEM;
}
memset(tvol, 0, sizeof(struct bc_volumeDump));
tvol->name = (char *)malloc(VOLSER_MAXVOLNAME + 1);
if (!tvol->name) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return BC_NOMEM;
}
strncpy(tvol->name, ti->data, VOLSER_OLDMAXVOLNAME);
@ -1242,7 +1242,7 @@ bc_VolRestoreCmd(struct cmd_syndesc *as, void *arock)
portCount++;
ports = (afs_int32 *) malloc(portCount * sizeof(afs_int32));
if (!ports) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return BC_NOMEM;
}
@ -1372,7 +1372,7 @@ bc_DiskRestoreCmd(struct cmd_syndesc *as, void *arock)
portCount++;
ports = (afs_int32 *) malloc(portCount * sizeof(afs_int32));
if (!ports) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return BC_NOMEM;
}
@ -1543,7 +1543,7 @@ bc_VolsetRestoreCmd(struct cmd_syndesc *as, void *arock)
tvol->name = (char *)malloc(VOLSER_MAXVOLNAME + 1);
if (!tvol->name) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return BC_NOMEM;
}
strncpy(tvol->name, volume, VOLSER_OLDMAXVOLNAME);
@ -1569,7 +1569,7 @@ bc_VolsetRestoreCmd(struct cmd_syndesc *as, void *arock)
portCount++;
ports = (afs_int32 *) malloc(portCount * sizeof(afs_int32));
if (!ports) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return BC_NOMEM;
}
@ -1726,7 +1726,7 @@ bc_DumpCmd(struct cmd_syndesc *as, void *arock)
portCount = 1;
portp = (afs_int32 *) malloc(sizeof(afs_int32));
if (!portp) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return BC_NOMEM;
}
@ -1807,7 +1807,7 @@ bc_DumpCmd(struct cmd_syndesc *as, void *arock)
statusPtr->scheduledDump = atTime;
statusPtr->cmdLine = (char *)malloc(length);
if (!statusPtr->cmdLine) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return BC_NOMEM;
}
@ -1859,7 +1859,7 @@ bc_DumpCmd(struct cmd_syndesc *as, void *arock)
if (loadfile) {
loadFile = (char *)malloc(strlen(as->parms[6].items->data) + 1);
if (!loadFile) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return BC_NOMEM;
}
strcpy(loadFile, as->parms[6].items->data);
@ -2408,7 +2408,7 @@ deleteDump(afs_uint32 dumpid, /* The dumpid to delete */
/* Display the dumps that were deleted - includes appended dumps */
for (i = 0; i < dumps.budb_dumpsList_len; i++)
printf(" %u%s\n", dumps.budb_dumpsList_val[i],
(i > 0) ? " Appended Dump" : "");
(i > 0) ? " Appended Dump" : NULL);
if (dumps.budb_dumpsList_val)
free(dumps.budb_dumpsList_val);
}
@ -2838,7 +2838,7 @@ DBLookupByVolume(char *volumeName)
}
if (code)
afs_com_err(whoami, code, "");
afs_com_err(whoami, code, NULL);
return (code);
}
@ -2926,7 +2926,7 @@ dumpInfo(afs_int32 dumpid, afs_int32 detailFlag)
for (tapeNumber = dumpEntry.tapes.b; tapeNumber <= dumpEntry.tapes.maxTapes; tapeNumber++) { /*f */
tapeLinkPtr = (struct tapeLink *)malloc(sizeof(struct tapeLink));
if (!tapeLinkPtr) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
ERROR(BC_NOMEM);
}
@ -2978,7 +2978,7 @@ dumpInfo(afs_int32 dumpid, afs_int32 detailFlag)
volumeLinkPtr =
(struct volumeLink *)malloc(sizeof(struct volumeLink));
if (!volumeLinkPtr) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
ERROR(BC_NOMEM);
}
memset(volumeLinkPtr, 0, sizeof(*volumeLinkPtr));

2
src/bucoord/dump.c
View File

@ -90,7 +90,7 @@ bc_Dumper(int aindex)
volDesc =
(struct tc_dumpDesc *)malloc(count * sizeof(struct tc_dumpDesc));
if (!volDesc) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
ERROR(BC_NOMEM);
}

18
src/bucoord/restore.c
View File

@ -201,7 +201,7 @@ bc_Restorer(afs_int32 aindex)
volumeEntries = (struct budb_volumeEntry *)
malloc(MAXTAPESATONCE * sizeof(struct budb_volumeEntry));
if (!volumeEntries) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
ERROR(BC_NOMEM);
}
@ -279,7 +279,7 @@ bc_Restorer(afs_int32 aindex)
if (!di) {
di = (struct dumpinfo *)malloc(sizeof(struct dumpinfo));
if (!di) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
ERROR(BC_NOMEM);
}
memset(di, 0, sizeof(struct dumpinfo));
@ -301,7 +301,7 @@ bc_Restorer(afs_int32 aindex)
/* Create one and thread into list */
vi = (struct volinfo *)malloc(sizeof(struct volinfo));
if (!vi) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
ERROR(BC_NOMEM);
}
memset(vi, 0, sizeof(struct volinfo));
@ -309,7 +309,7 @@ bc_Restorer(afs_int32 aindex)
vi->volname = (char *)malloc(strlen(vname) + 1);
if (!vi->volname) {
free(vi);
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
ERROR(BC_NOMEM);
}
@ -482,7 +482,7 @@ bc_Restorer(afs_int32 aindex)
tle = (struct bc_tapeList *)
malloc(sizeof(struct bc_tapeList));
if (!tle) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return (BC_NOMEM);
}
memset(tle, 0, sizeof(struct bc_tapeList));
@ -492,7 +492,7 @@ bc_Restorer(afs_int32 aindex)
+ 1);
if (!tle->tapeName) {
free(tle);
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return (BC_NOMEM);
}
@ -537,7 +537,7 @@ bc_Restorer(afs_int32 aindex)
ti = (struct bc_tapeItem *)
malloc(sizeof(struct bc_tapeItem));
if (!ti) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return (BC_NOMEM);
}
memset(ti, 0, sizeof(struct bc_tapeItem));
@ -547,7 +547,7 @@ bc_Restorer(afs_int32 aindex)
+ 1);
if (!ti->volumeName) {
free(ti);
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
return (BC_NOMEM);
}
@ -637,7 +637,7 @@ bc_Restorer(afs_int32 aindex)
(struct tc_restoreDesc *)malloc(nentries *
sizeof(struct tc_restoreDesc));
if (!tcarray) {
afs_com_err(whoami, BC_NOMEM, "");
afs_com_err(whoami, BC_NOMEM, NULL);
ERROR(BC_NOMEM);
}
memset(tcarray, 0, nentries * sizeof(struct tc_restoreDesc));

6
src/bucoord/ubik_db_if.c
View File

@ -850,8 +850,8 @@ vldbClientInit(int noAuthFlag, int localauth, char *cellName,
code =
ktc_GetToken(&sname, ttoken, sizeof(struct ktc_token), NULL);
if (code) {
afs_com_err(whoami, code, 0,
"; Can't get AFS tokens - running unauthenticated");
afs_com_err(whoami, code,
"; Can't get AFS tokens - running unauthenticated");
} else {
if ((ttoken->kvno < 0) || (ttoken->kvno > 256))
afs_com_err(whoami, 0,
@ -1024,7 +1024,7 @@ udbClientInit(int noAuthFlag, int localauth, char *cellName)
if (!udbHandle.uh_secobj) {
afs_com_err(whoami, 0,
"Can't create a security object with security index %d",
udbHandle.uh_secobj);
udbHandle.uh_scIndex);
ERROR(-1);
}

8
src/comerr/com_err.h
View File

@ -12,9 +12,13 @@
#include <stdarg.h>
extern void afs_com_err(const char *, afs_int32, const char *, ...);
extern void afs_com_err(const char *, afs_int32, const char *, ...)
AFS_ATTRIBUTE_FORMAT(__printf__, 3, 4);
extern void afs_com_err_va(const char *whoami, afs_int32 code, const char *fmt,
va_list args);
va_list args)
AFS_ATTRIBUTE_FORMAT(__printf__, 3, 0);
extern const char *afs_error_table_name(afs_int32);
extern const char *afs_error_message(afs_int32);
extern

2
src/kauth/admin_tools.c
View File

@ -520,7 +520,7 @@ ka_islocked(char *name, char *instance, afs_uint32 * when)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
if (code) {
if (seriouserror(code))
afs_com_err(whoami, code, "");
afs_com_err(whoami, code, NULL);
} else if (tempwhen) { /* user is locked */
if (!*when || tempwhen < *when) {
*when = tempwhen;

3
src/ptserver/db_verify.c
View File

@ -1295,7 +1295,8 @@ CheckPrDatabase(struct misc_data *misc) /* info & statistics */
n = eof / sizeof(struct prentry);
if ((eof < 0) || (n * sizeof(struct prentry) != eof)) {
code = PRDBBAD;
afs_com_err(whoami, code, "eof ptr no good: eof=%d, sizeof(prentry)=%d",
afs_com_err(whoami, code,
"eof ptr no good: eof=%d, sizeof(prentry)=%" AFS_SIZET_FMT,
eof, sizeof(struct prentry));
abort:
return code;

4
src/uss/uss_kauth.c
View File

@ -706,8 +706,8 @@ uss_kauth_SetFields(char *username, char *expirestring, char *reuse,
"Must specify one of the optional parameters. Continuing...\n");
if (code) {
afs_com_err(uss_whoami, code, "calling KAM_SetFields for %s.%s",
username, instance);
afs_com_err(uss_whoami, code, "calling KAM_SetFields for %s",
username);
return (code);
}