* [LTP] [PATCH v2] inode02: fix "slash" array overrun
@ 2013-03-20 9:44 Jan Stancek
2013-03-20 9:53 ` Wanlong Gao
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Jan Stancek @ 2013-03-20 9:44 UTC (permalink / raw)
To: ltp-list
Remove "slash" array and convert strcat to snprintf.
Signed-off-by: Jan Stancek <jstancek@redhat.com>
---
testcases/kernel/fs/inode/inode02.c | 26 ++++++++++++++++----------
1 files changed, 16 insertions(+), 10 deletions(-)
diff --git a/testcases/kernel/fs/inode/inode02.c b/testcases/kernel/fs/inode/inode02.c
index 783edf8..54e3927 100644
--- a/testcases/kernel/fs/inode/inode02.c
+++ b/testcases/kernel/fs/inode/inode02.c
@@ -80,7 +80,6 @@ int nchild;
FILE *list_stream = NULL;
int list_id;
int file_id;
-char slash[1];
int increment_name(), get_next_name(), mode(), escrivez(), massmurder();
int max_depth, max_breadth, file_length;
@@ -249,9 +248,7 @@ int tree()
char path_list_string[PATH_STRING_LENGTH + 10];
int len;
int status;
-
- slash[0] = '/';
- slash[1] = '\0';
+ int snp_ret;
/********************************/
/* */
@@ -287,9 +284,13 @@ int tree()
/* */
/****************************************/
- strcpy(path_list_string, path_string);
- strcat(path_list_string, slash);
- strcat(path_list_string, "path_list");
+ snp_ret = snprintf(path_list_string, sizeof(path_list_string),
+ "%s/path_list", path_string);
+ if (snp_ret < 0 || snp_ret >= sizeof(path_list_string)) {
+ tst_resm(TBROK, "snprintf(path_list_string,..) returned %d",
+ snp_ret);
+ exit(-1);
+ }
list_id = creat(path_list_string, FILE_MODE);
if (list_id == -1) {
fprintf(temp,
@@ -411,6 +412,7 @@ int level; /* the tree depth variable */
char new_string[PATH_STRING_LENGTH + 1];
int new_level;
int i, j; /* iteration counters */
+ int snp_ret;
switch_flag = level & TRUE;
if (strlen(string) >= MAX_PATH_STRING_LENGTH) {
@@ -427,9 +429,13 @@ int level; /* the tree depth variable */
} else if (level < max_depth) {
for (i = 0; i <= max_breadth; i++) {
get_next_name();
- strcpy(new_string, string);
- strcat(new_string, slash);
- strcat(new_string, name);
+ snp_ret = snprintf(new_string, sizeof(new_string),
+ "%s/%s", string, name);
+ if (snp_ret < 0 || snp_ret >= sizeof(new_string)) {
+ tst_resm(TBROK, "snprintf(new_string,..) "
+ "returned %d", snp_ret);
+ exit(-1);
+ }
/****************************************/
/* */
--
1.7.1
------------------------------------------------------------------------------
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^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [LTP] [PATCH v2] inode02: fix "slash" array overrun
2013-03-20 9:44 [LTP] [PATCH v2] inode02: fix "slash" array overrun Jan Stancek
@ 2013-03-20 9:53 ` Wanlong Gao
2013-03-20 10:20 ` Caspar Zhang
2013-03-21 0:51 ` Wanlong Gao
2 siblings, 0 replies; 4+ messages in thread
From: Wanlong Gao @ 2013-03-20 9:53 UTC (permalink / raw)
To: Jan Stancek; +Cc: ltp-list
On 03/20/2013 05:44 PM, Jan Stancek wrote:
> Remove "slash" array and convert strcat to snprintf.
>
> Signed-off-by: Jan Stancek <jstancek@redhat.com>
Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
> ---
> testcases/kernel/fs/inode/inode02.c | 26 ++++++++++++++++----------
> 1 files changed, 16 insertions(+), 10 deletions(-)
>
> diff --git a/testcases/kernel/fs/inode/inode02.c b/testcases/kernel/fs/inode/inode02.c
> index 783edf8..54e3927 100644
> --- a/testcases/kernel/fs/inode/inode02.c
> +++ b/testcases/kernel/fs/inode/inode02.c
> @@ -80,7 +80,6 @@ int nchild;
> FILE *list_stream = NULL;
> int list_id;
> int file_id;
> -char slash[1];
>
> int increment_name(), get_next_name(), mode(), escrivez(), massmurder();
> int max_depth, max_breadth, file_length;
> @@ -249,9 +248,7 @@ int tree()
> char path_list_string[PATH_STRING_LENGTH + 10];
> int len;
> int status;
> -
> - slash[0] = '/';
> - slash[1] = '\0';
> + int snp_ret;
>
> /********************************/
> /* */
> @@ -287,9 +284,13 @@ int tree()
> /* */
> /****************************************/
>
> - strcpy(path_list_string, path_string);
> - strcat(path_list_string, slash);
> - strcat(path_list_string, "path_list");
> + snp_ret = snprintf(path_list_string, sizeof(path_list_string),
> + "%s/path_list", path_string);
> + if (snp_ret < 0 || snp_ret >= sizeof(path_list_string)) {
> + tst_resm(TBROK, "snprintf(path_list_string,..) returned %d",
> + snp_ret);
> + exit(-1);
> + }
> list_id = creat(path_list_string, FILE_MODE);
> if (list_id == -1) {
> fprintf(temp,
> @@ -411,6 +412,7 @@ int level; /* the tree depth variable */
> char new_string[PATH_STRING_LENGTH + 1];
> int new_level;
> int i, j; /* iteration counters */
> + int snp_ret;
>
> switch_flag = level & TRUE;
> if (strlen(string) >= MAX_PATH_STRING_LENGTH) {
> @@ -427,9 +429,13 @@ int level; /* the tree depth variable */
> } else if (level < max_depth) {
> for (i = 0; i <= max_breadth; i++) {
> get_next_name();
> - strcpy(new_string, string);
> - strcat(new_string, slash);
> - strcat(new_string, name);
> + snp_ret = snprintf(new_string, sizeof(new_string),
> + "%s/%s", string, name);
> + if (snp_ret < 0 || snp_ret >= sizeof(new_string)) {
> + tst_resm(TBROK, "snprintf(new_string,..) "
> + "returned %d", snp_ret);
> + exit(-1);
> + }
>
> /****************************************/
> /* */
>
------------------------------------------------------------------------------
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^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [LTP] [PATCH v2] inode02: fix "slash" array overrun
2013-03-20 9:44 [LTP] [PATCH v2] inode02: fix "slash" array overrun Jan Stancek
2013-03-20 9:53 ` Wanlong Gao
@ 2013-03-20 10:20 ` Caspar Zhang
2013-03-21 0:51 ` Wanlong Gao
2 siblings, 0 replies; 4+ messages in thread
From: Caspar Zhang @ 2013-03-20 10:20 UTC (permalink / raw)
To: Jan Stancek; +Cc: ltp-list
On 03/20/2013 05:44 PM, Jan Stancek wrote:
> Remove "slash" array and convert strcat to snprintf.
>
> Signed-off-by: Jan Stancek <jstancek@redhat.com>
Reviewed-by: Caspar Zhang <caspar@casparzhang.com>
> ---
> testcases/kernel/fs/inode/inode02.c | 26 ++++++++++++++++----------
> 1 files changed, 16 insertions(+), 10 deletions(-)
>
> diff --git a/testcases/kernel/fs/inode/inode02.c b/testcases/kernel/fs/inode/inode02.c
> index 783edf8..54e3927 100644
> --- a/testcases/kernel/fs/inode/inode02.c
> +++ b/testcases/kernel/fs/inode/inode02.c
> @@ -80,7 +80,6 @@ int nchild;
> FILE *list_stream = NULL;
> int list_id;
> int file_id;
> -char slash[1];
>
> int increment_name(), get_next_name(), mode(), escrivez(), massmurder();
> int max_depth, max_breadth, file_length;
> @@ -249,9 +248,7 @@ int tree()
> char path_list_string[PATH_STRING_LENGTH + 10];
> int len;
> int status;
> -
> - slash[0] = '/';
> - slash[1] = '\0';
> + int snp_ret;
>
> /********************************/
> /* */
> @@ -287,9 +284,13 @@ int tree()
> /* */
> /****************************************/
>
> - strcpy(path_list_string, path_string);
> - strcat(path_list_string, slash);
> - strcat(path_list_string, "path_list");
> + snp_ret = snprintf(path_list_string, sizeof(path_list_string),
> + "%s/path_list", path_string);
> + if (snp_ret < 0 || snp_ret >= sizeof(path_list_string)) {
> + tst_resm(TBROK, "snprintf(path_list_string,..) returned %d",
> + snp_ret);
> + exit(-1);
> + }
> list_id = creat(path_list_string, FILE_MODE);
> if (list_id == -1) {
> fprintf(temp,
> @@ -411,6 +412,7 @@ int level; /* the tree depth variable */
> char new_string[PATH_STRING_LENGTH + 1];
> int new_level;
> int i, j; /* iteration counters */
> + int snp_ret;
>
> switch_flag = level & TRUE;
> if (strlen(string) >= MAX_PATH_STRING_LENGTH) {
> @@ -427,9 +429,13 @@ int level; /* the tree depth variable */
> } else if (level < max_depth) {
> for (i = 0; i <= max_breadth; i++) {
> get_next_name();
> - strcpy(new_string, string);
> - strcat(new_string, slash);
> - strcat(new_string, name);
> + snp_ret = snprintf(new_string, sizeof(new_string),
> + "%s/%s", string, name);
> + if (snp_ret < 0 || snp_ret >= sizeof(new_string)) {
> + tst_resm(TBROK, "snprintf(new_string,..) "
> + "returned %d", snp_ret);
> + exit(-1);
> + }
>
> /****************************************/
> /* */
>
------------------------------------------------------------------------------
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^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [LTP] [PATCH v2] inode02: fix "slash" array overrun
2013-03-20 9:44 [LTP] [PATCH v2] inode02: fix "slash" array overrun Jan Stancek
2013-03-20 9:53 ` Wanlong Gao
2013-03-20 10:20 ` Caspar Zhang
@ 2013-03-21 0:51 ` Wanlong Gao
2 siblings, 0 replies; 4+ messages in thread
From: Wanlong Gao @ 2013-03-21 0:51 UTC (permalink / raw)
To: Jan Stancek; +Cc: ltp-list
On 03/20/2013 05:44 PM, Jan Stancek wrote:
> Remove "slash" array and convert strcat to snprintf.
>
> Signed-off-by: Jan Stancek <jstancek@redhat.com>
Applied, thank you.
Wanlong Gao
------------------------------------------------------------------------------
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Download AppDynamics Lite for free today:
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^ permalink raw reply [flat|nested] 4+ messages in thread
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2013-03-20 9:53 ` Wanlong Gao
2013-03-20 10:20 ` Caspar Zhang
2013-03-21 0:51 ` Wanlong Gao
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