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Code Issues Releases Wiki Activity

1458. [cleanup] sprintf() -> snprintf().

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This commit is contained in:
Mark Andrews
2003-04-11 07:25:31 +00:00
parent 935000aa6e
commit 806c235ecf
16 changed files with 83 additions and 69 deletions
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2
CHANGES
View File

@@ -1,3 +1,5 @@
1458. [cleanup] sprintf() -> snprintf().
1457. [port] Provide strlcat() and strlcpy() for platforms without
them.

5
lib/dns/byaddr.c
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: byaddr.c,v 1.32 2002/08/27 04:53:42 marka Exp $ */
/* $Id: byaddr.c,v 1.33 2003/04/11 07:25:24 marka Exp $ */
#include <config.h>
@@ -98,7 +98,8 @@ dns_byaddr_createptrname2(isc_netaddr_t *address, unsigned int options,
bytes = (unsigned char *)(&address->type);
if (address->family == AF_INET) {
(void)sprintf(textname, "%u.%u.%u.%u.in-addr.arpa.",
(void)snprintf(textname, sizeof(textname),
"%u.%u.%u.%u.in-addr.arpa.",
(bytes[3] & 0xff),
(bytes[2] & 0xff),
(bytes[1] & 0xff),

5
lib/dns/masterdump.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: masterdump.c,v 1.66 2003/01/22 06:37:04 marka Exp $ */
/* $Id: masterdump.c,v 1.67 2003/04/11 07:25:24 marka Exp $ */
#include <config.h>
@@ -375,7 +375,8 @@ rdataset_totext(dns_rdataset_t *rdataset,
unsigned int length;
INDENT_TO(ttl_column);
length = sprintf(ttlbuf, "%u", rdataset->ttl);
length = snprintf(ttlbuf, sizeof(ttlbuf), "%u",
rdataset->ttl);
INSIST(length <= sizeof(ttlbuf));
isc_buffer_availableregion(target, &r);
if (r.length < length)

16
lib/dns/message.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: message.c,v 1.216 2003/01/24 04:25:53 marka Exp $ */
/* $Id: message.c,v 1.217 2003/04/11 07:25:25 marka Exp $ */
/***
*** Imports
@@ -3023,7 +3023,7 @@ dns_message_totext(dns_message_t *msg, const dns_master_style_t *style,
ADD_STRING(target, ", status: ");
ADD_STRING(target, rcodetext[msg->rcode]);
ADD_STRING(target, ", id: ");
sprintf(buf, "%6u", msg->id);
snprintf(buf, sizeof(buf), "%6u", msg->id);
ADD_STRING(target, buf);
ADD_STRING(target, "\n;; flags: ");
if ((msg->flags & DNS_MESSAGEFLAG_QR) != 0)
@@ -3045,24 +3045,28 @@ dns_message_totext(dns_message_t *msg, const dns_master_style_t *style,
} else {
ADD_STRING(target, "; ZONE: ");
}
sprintf(buf, "%1u", msg->counts[DNS_SECTION_QUESTION]);
snprintf(buf, sizeof(buf), "%1u",
msg->counts[DNS_SECTION_QUESTION]);
ADD_STRING(target, buf);
if (msg->opcode != dns_opcode_update) {
ADD_STRING(target, ", ANSWER: ");
} else {
ADD_STRING(target, ", PREREQ: ");
}
sprintf(buf, "%1u", msg->counts[DNS_SECTION_ANSWER]);
snprintf(buf, sizeof(buf), "%1u",
msg->counts[DNS_SECTION_ANSWER]);
ADD_STRING(target, buf);
if (msg->opcode != dns_opcode_update) {
ADD_STRING(target, ", AUTHORITY: ");
} else {
ADD_STRING(target, ", UPDATE: ");
}
sprintf(buf, "%1u", msg->counts[DNS_SECTION_AUTHORITY]);
snprintf(buf, sizeof(buf), "%1u",
msg->counts[DNS_SECTION_AUTHORITY]);
ADD_STRING(target, buf);
ADD_STRING(target, ", ADDITIONAL: ");
sprintf(buf, "%1u", msg->counts[DNS_SECTION_ADDITIONAL]);
snprintf(buf, sizeof buf, "%1u",
msg->counts[DNS_SECTION_ADDITIONAL]);
ADD_STRING(target, buf);
ADD_STRING(target, "\n");
}

8
lib/dns/name.c
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: name.c,v 1.138 2003/01/08 04:42:22 marka Exp $ */
/* $Id: name.c,v 1.139 2003/04/11 07:25:25 marka Exp $ */
#include <config.h>
@@ -1221,10 +1221,12 @@ dns_name_totext(dns_name_t *name, isc_boolean_t omit_final_dot,
trem--;
nlen--;
} else {
char buf[5];
if (trem < 4)
return (ISC_R_NOSPACE);
sprintf(tdata, "\\%03u",
c);
snprintf(buf, sizeof(buf),
"\\%03u", c);
memcpy(tdata, buf, 4);
tdata += 4;
trem -= 4;
ndata++;

16
lib/dns/rdata.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: rdata.c,v 1.173 2003/01/18 02:40:59 marka Exp $ */
/* $Id: rdata.c,v 1.174 2003/04/11 07:25:25 marka Exp $ */
#include <config.h>
#include <ctype.h>
@@ -782,11 +782,11 @@ rdata_totext(dns_rdata_t *rdata, dns_rdata_textctx_t *tctx,
TOTEXTSWITCH
if (use_default) {
sprintf(buf, "\\# ");
strlcpy(buf, "\\# ", sizeof(buf));
result = str_totext(buf, target);
dns_rdata_toregion(rdata, &sr);
INSIST(sr.length < 65536);
sprintf(buf, "%u", sr.length);
snprintf(buf, sizeof(buf), "%u", sr.length);
result = str_totext(buf, target);
if (sr.length != 0 && result == ISC_R_SUCCESS) {
if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
@@ -1037,7 +1037,7 @@ dns_mnemonic_totext(unsigned int value, isc_buffer_t *target,
}
i++;
}
sprintf(buf, "%u", value);
snprintf(buf, sizeof buf, "%u", value);
return (str_totext(buf, target));
}
@@ -1122,7 +1122,7 @@ dns_rdataclass_totext(dns_rdataclass_t rdclass, isc_buffer_t *target) {
case dns_rdataclass_reserved0:
return (str_totext("RESERVED0", target));
default:
sprintf(buf, "CLASS%u", rdclass);
snprintf(buf, sizeof(buf), "CLASS%u", rdclass);
return (str_totext(buf, target));
}
}
@@ -1197,7 +1197,7 @@ dns_rdatatype_totext(dns_rdatatype_t type, isc_buffer_t *target) {
char buf[sizeof("TYPE65536")];
if (type > 255) {
sprintf(buf, "TYPE%u", type);
snprintf(buf, sizeof buf, "TYPE%u", type);
return (str_totext(buf, target));
}
@@ -1377,7 +1377,7 @@ txt_totext(isc_region_t *source, isc_buffer_t *target) {
if (*sp < 0x20 || *sp >= 0x7f) {
if (tl < 4)
return (ISC_R_NOSPACE);
sprintf(tp, "\\%03u", *sp++);
snprintf(tp, 5, "\\%03u", *sp++);
tp += 4;
tl -= 4;
continue;
@@ -1936,7 +1936,7 @@ btoa_totext(unsigned char *inbuf, int inbuflen, isc_buffer_t *target) {
* Put byte count and checksum information at end of buffer,
* delimited by 'x'
*/
sprintf(buf, "x %d %x %x %x", inbuflen, Ceor, Csum, Crot);
snprintf(buf, sizeof(buf), "x %d %x %x %x", inbuflen, Ceor, Csum, Crot);
return (str_totext(buf, target));
}

4
lib/dns/resolver.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: resolver.c,v 1.262 2003/02/26 22:54:28 marka Exp $ */
/* $Id: resolver.c,v 1.263 2003/04/11 07:25:25 marka Exp $ */
#include <config.h>
@@ -5295,7 +5295,7 @@ dns_resolver_create(dns_view_t *view,
DESTROYLOCK(&res->buckets[i].lock);
goto cleanup_buckets;
}
sprintf(name, "res%u", i);
snprintf(name, sizeof(name), "res%u", i);
isc_task_setname(res->buckets[i].task, name, res);
ISC_LIST_INIT(res->buckets[i].fctxs);
res->buckets[i].exiting = ISC_FALSE;

6
lib/dns/time.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: time.c,v 1.22 2002/11/12 19:50:51 marka Exp $ */
/* $Id: time.c,v 1.23 2003/04/11 07:25:27 marka Exp $ */
#include <config.h>
@@ -74,8 +74,8 @@ dns_time64_totext(isc_int64_t t, isc_buffer_t *target) {
tm.tm_min++;
}
tm.tm_sec = (int)t;
/* yy mm dd HH MM SS */
sprintf(buf, "%04d%02d%02d%02d%02d%02d",
/* yyyy mm dd HH MM SS */
snprintf(buf, sizeof(buf), "%04d%02d%02d%02d%02d%02d",
tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec);

8
lib/isc/lex.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: lex.c,v 1.75 2002/03/11 05:38:27 marka Exp $ */
/* $Id: lex.c,v 1.76 2003/04/11 07:25:27 marka Exp $ */
#include <config.h>
@@ -251,8 +251,7 @@ isc_lex_openstream(isc_lex_t *lex, FILE *stream) {
REQUIRE(VALID_LEX(lex));
/* This is safe. */
sprintf(name, "stream-%p", stream);
snprintf(name, sizeof(name), "stream-%p", stream);
return (new_source(lex, ISC_TRUE, ISC_FALSE, stream, name));
}
@@ -267,8 +266,7 @@ isc_lex_openbuffer(isc_lex_t *lex, isc_buffer_t *buffer) {
REQUIRE(VALID_LEX(lex));
/* This is safe. */
sprintf(name, "buffer-%p", buffer);
snprintf(name, sizeof(name), "buffer-%p", buffer);
return (new_source(lex, ISC_FALSE, ISC_FALSE, buffer, name));
}

13
lib/isc/log.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: log.c,v 1.80 2002/11/29 01:42:18 marka Exp $ */
/* $Id: log.c,v 1.81 2003/04/11 07:25:28 marka Exp $ */
/* Principal Authors: DCL */
@@ -1492,18 +1492,19 @@ isc_log_doit(isc_log_t *lctx, isc_logcategory_t *category,
if ((channel->flags & ISC_LOG_PRINTLEVEL) != 0 &&
level_string[0] == '\0') {
if (level < ISC_LOG_CRITICAL)
sprintf(level_string,
snprintf(level_string, sizeof(level_string),
isc_msgcat_get(isc_msgcat,
ISC_MSGSET_LOG,
ISC_MSG_LEVEL,
"level %d: "),
level);
else if (level > ISC_LOG_DYNAMIC)
sprintf(level_string, "%s %d: ",
log_level_strings[0], level);
snprintf(level_string, sizeof(level_string),
"%s %d: ", log_level_strings[0],
level);
else
sprintf(level_string, "%s: ",
log_level_strings[-level]);
snprintf(level_string, sizeof(level_string),
"%s: ", log_level_strings[-level]);
}
/*

6
lib/isc/sockaddr.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: sockaddr.c,v 1.55 2002/10/24 03:52:33 marka Exp $ */
/* $Id: sockaddr.c,v 1.56 2003/04/11 07:25:28 marka Exp $ */
#include <config.h>
@@ -120,10 +120,10 @@ isc_sockaddr_totext(const isc_sockaddr_t *sockaddr, isc_buffer_t *target) {
*/
switch (sockaddr->type.sa.sa_family) {
case AF_INET:
sprintf(pbuf, "%u", ntohs(sockaddr->type.sin.sin_port));
snprintf(pbuf, sizeof(pbuf), "%u", ntohs(sockaddr->type.sin.sin_port));
break;
case AF_INET6:
sprintf(pbuf, "%u", ntohs(sockaddr->type.sin6.sin6_port));
snprintf(pbuf, sizeof(pbuf), "%u", ntohs(sockaddr->type.sin6.sin6_port));
break;
default:
return (ISC_R_FAILURE);

6
lib/isccc/cc.c
View File

@@ -16,7 +16,7 @@
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: cc.c,v 1.6 2002/03/15 04:54:58 marka Exp $ */
/* $Id: cc.c,v 1.7 2003/04/11 07:25:28 marka Exp $ */
#include <config.h>
@@ -647,7 +647,7 @@ isccc_cc_defineuint32(isccc_sexpr_t *alist, const char *key, isc_uint32_t i)
size_t len;
isccc_region_t r;
sprintf(b, "%u", i);
snprintf(b, sizeof(b), "%u", i);
len = strlen(b);
r.rstart = (unsigned char *)b;
r.rend = (unsigned char *)b + len;
@@ -792,7 +792,7 @@ isccc_cc_checkdup(isccc_symtab_t *symtab, isccc_sexpr_t *message,
key = malloc(len);
if (key == NULL)
return (ISC_R_NOMEMORY);
sprintf(key, "%s;%s;%s;%s", _frm, _to, _ser, _tim);
snprintf(key, len, "%s;%s;%s;%s", _frm, _to, _ser, _tim);
value.as_uinteger = now;
result = isccc_symtab_define(symtab, key, ISCCC_SYMTYPE_CCDUP, value,
isccc_symexists_reject);

12
lib/isccfg/parser.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: parser.c,v 1.106 2003/04/10 02:16:11 marka Exp $ */
/* $Id: parser.c,v 1.107 2003/04/11 07:25:28 marka Exp $ */
#include <config.h>
@@ -645,7 +645,8 @@ cfg_obj_asuint64(cfg_obj_t *obj) {
void
cfg_print_uint64(cfg_printer_t *pctx, cfg_obj_t *obj) {
char buf[32];
sprintf(buf, "%" ISC_PRINT_QUADFORMAT "u", obj->value.uint64);
snprintf(buf, sizeof(buf), "%" ISC_PRINT_QUADFORMAT "u",
obj->value.uint64);
cfg_print_cstr(pctx, buf);
}
@@ -2101,13 +2102,16 @@ parser_complain(cfg_parser_t *pctx, isc_boolean_t is_warning,
static char message[2048];
int level = ISC_LOG_ERROR;
const char *prep = "";
size_t len;
if (is_warning)
level = ISC_LOG_WARNING;
sprintf(where, "%s:%u: ", current_file(pctx), pctx->line);
snprintf(where, sizeof(where), "%s:%u: ",
current_file(pctx), pctx->line);
if ((unsigned int)vsprintf(message, format, args) >= sizeof(message))
len = vsnprintf(message, sizeof(message), format, args);
if (len >= sizeof(message))
FATAL_ERROR(__FILE__, __LINE__,
"error message would overflow");

4
lib/lwres/getnameinfo.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: getnameinfo.c,v 1.30 2001/07/10 18:25:43 gson Exp $ */
/* $Id: getnameinfo.c,v 1.31 2003/04/11 07:25:29 marka Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -172,7 +172,7 @@ lwres_getnameinfo(const struct sockaddr *sa, size_t salen, char *host,
*/
} else if ((flags & NI_NUMERICSERV) != 0 ||
(sp = getservbyport(port, proto)) == NULL) {
sprintf(numserv, "%d", ntohs(port));
snprintf(numserv, sizeof(numserv), "%d", ntohs(port));
if ((strlen(numserv) + 1) > servlen)
ERR(ENI_MEMORY);
strcpy(serv, numserv);

9
lib/lwres/lwinetntop.c
View File

@@ -17,7 +17,7 @@
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] =
"$Id: lwinetntop.c,v 1.10 2001/11/27 01:56:32 gson Exp $";
"$Id: lwinetntop.c,v 1.11 2003/04/11 07:25:30 marka Exp $";
#endif /* LIBC_SCCS and not lint */
#include <config.h>
@@ -83,9 +83,10 @@ static const char *
inet_ntop4(const unsigned char *src, char *dst, size_t size) {
static const char fmt[] = "%u.%u.%u.%u";
char tmp[sizeof("255.255.255.255")];
size_t len;
if ((size_t)sprintf(tmp, fmt, src[0], src[1], src[2], src[3]) >= size)
{
len = snprintf(tmp, sizeof(tmp), fmt, src[0], src[1], src[2], src[3]);
if (len >= size) {
errno = ENOSPC;
return (NULL);
}
@@ -170,7 +171,7 @@ inet_ntop6(const unsigned char *src, char *dst, size_t size) {
tp += strlen(tp);
break;
}
tp += sprintf(tp, "%x", words[i]);
tp += sprintf(tp, "%x", words[i]); /* XXX */
}
/* Was it a trailing run of 0x00's? */
if (best.base != -1 && (best.base + best.len) ==

10
lib/tests/t_api.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: t_api.c,v 1.49 2002/08/27 04:53:43 marka Exp $ */
/* $Id: t_api.c,v 1.50 2003/04/11 07:25:31 marka Exp $ */
#include <config.h>
@@ -253,7 +253,7 @@ main(int argc, char **argv) {
* Output start stanza to journal.
*/
sprintf(T_buf, "%s:", argv[0]);
snprintf(T_buf, sizeof(T_buf), "%s:", argv[0]);
len = strlen(T_buf);
(void) t_getdate(T_buf + len, T_BIGBUF - len);
t_putinfo("S", T_buf);
@@ -334,7 +334,7 @@ main(int argc, char **argv) {
++tnum;
}
sprintf(T_buf, "%s:", argv[0]);
snprintf(T_buf, sizeof(T_buf), "%s:", argv[0]);
len = strlen(T_buf);
(void) t_getdate(T_buf + len, T_BIGBUF - len);
t_putinfo("E", T_buf);
@@ -353,7 +353,7 @@ t_assert(const char *component, int anum, int class, const char *what, ...) {
* Format text to a buffer.
*/
va_start(args, what);
(void)vsprintf(T_buf, what, args);
(void)vsnprintf(T_buf, sizeof(T_buf), what, args);
va_end(args);
(void)t_putinfo("A", T_buf);
@@ -365,7 +365,7 @@ t_info(const char *format, ...) {
va_list args;
va_start(args, format);
(void) vsprintf(T_buf, format, args);
(void) vsnprintf(T_buf, sizeof(T_buf), format, args);
va_end(args);
(void) t_putinfo("I", T_buf);
}