AuroraMiddleware/libtomcrypt
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use snprintf() instead of sprintf()

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This commit is contained in:
Steffen Jaeckel 2014-07-15 14:09:50 +02:00
parent e628fb9203
commit fd7b3cd875
2 changed files with 15 additions and 9 deletions
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13
src/misc/crypt/crypt_constants.c
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@ -78,7 +78,7 @@ crypt_constant _crypt_constants[] = {
*/ */
int crypt_get_constant(const char* namein, int *valueout) { int crypt_get_constant(const char* namein, int *valueout) {
int i; int i;
int _crypt_constants_len = sizeof(_crypt_constants) / sizeof(crypt_constant); int _crypt_constants_len = sizeof(_crypt_constants) / sizeof(_crypt_constants[0]);
for (i=0; i<_crypt_constants_len; i++) { for (i=0; i<_crypt_constants_len; i++) {
if (strcmp(_crypt_constants[i].name, namein) == 0) { if (strcmp(_crypt_constants[i].name, namein) == 0) {
*valueout = _crypt_constants[i].value; *valueout = _crypt_constants[i].value;
@ -101,7 +101,7 @@ int crypt_get_constant(const char* namein, int *valueout) {
int crypt_list_all_constants(char *names_list, unsigned long *names_list_size) { int crypt_list_all_constants(char *names_list, unsigned long *names_list_size) {
int i; int i;
unsigned long total_len = 0; unsigned long total_len = 0;
char number[10]; char number[32];
int number_len; int number_len;
int count = sizeof(_crypt_constants) / sizeof(_crypt_constants[0]); int count = sizeof(_crypt_constants) / sizeof(_crypt_constants[0]);
@ -109,8 +109,11 @@ int crypt_list_all_constants(char *names_list, unsigned long *names_list_size) {
for (i=0; i<count; i++) { for (i=0; i<count; i++) {
total_len += strlen(_crypt_constants[i].name) + 1; total_len += strlen(_crypt_constants[i].name) + 1;
/* the above +1 is for the commas */ /* the above +1 is for the commas */
sprintf(number,"%lu",_crypt_constants[i].value); number_len = snprintf(number, sizeof(number), "%ld", _crypt_constants[i].value);
total_len += strlen(number) + 1; if ((number_len < 0) ||
((unsigned int)number_len >= sizeof(number)))
return -1;
total_len += number_len + 1;
/* this last +1 is for newlines (and ending NULL) */ /* this last +1 is for newlines (and ending NULL) */
} }
@ -128,7 +131,7 @@ int crypt_list_all_constants(char *names_list, unsigned long *names_list_size) {
strcpy(ptr, ","); strcpy(ptr, ",");
ptr += 1; ptr += 1;
number_len = sprintf(number,"%lu",_crypt_constants[i].value); number_len = snprintf(number, sizeof(number), "%ld", _crypt_constants[i].value);
strcpy(ptr, number); strcpy(ptr, number);
ptr += number_len; ptr += number_len;
strcpy(ptr, "\n"); strcpy(ptr, "\n");

11
src/misc/crypt/crypt_sizes.c
View File

@ -236,7 +236,7 @@ crypt_size _crypt_sizes[] = {
*/ */
int crypt_get_size(const char* namein, int *sizeout) { int crypt_get_size(const char* namein, int *sizeout) {
int i; int i;
int count = sizeof(_crypt_sizes) / sizeof(crypt_size); int count = sizeof(_crypt_sizes) / sizeof(_crypt_sizes[0]);
for (i=0; i<count; i++) { for (i=0; i<count; i++) {
if (strcmp(_crypt_sizes[i].name, namein) == 0) { if (strcmp(_crypt_sizes[i].name, namein) == 0) {
*sizeout = _crypt_sizes[i].size; *sizeout = _crypt_sizes[i].size;
@ -259,7 +259,7 @@ int crypt_get_size(const char* namein, int *sizeout) {
int crypt_list_all_sizes(char *names_list, unsigned long *names_list_size) { int crypt_list_all_sizes(char *names_list, unsigned long *names_list_size) {
int i; int i;
unsigned long total_len = 0; unsigned long total_len = 0;
char number[10]; char number[32];
int number_len; int number_len;
int count = sizeof(_crypt_sizes) / sizeof(_crypt_sizes[0]); int count = sizeof(_crypt_sizes) / sizeof(_crypt_sizes[0]);
@ -267,7 +267,10 @@ int crypt_list_all_sizes(char *names_list, unsigned long *names_list_size) {
for (i=0; i<count; i++) { for (i=0; i<count; i++) {
total_len += strlen(_crypt_sizes[i].name) + 1; total_len += strlen(_crypt_sizes[i].name) + 1;
/* the above +1 is for the commas */ /* the above +1 is for the commas */
sprintf(number,"%lu",_crypt_sizes[i].size); number_len = snprintf(number, sizeof(number), "%ld", _crypt_sizes[i].size);
if ((number_len < 0) ||
((unsigned int)number_len >= sizeof(number)))
return -1;
total_len += strlen(number) + 1; total_len += strlen(number) + 1;
/* this last +1 is for newlines (and ending NULL) */ /* this last +1 is for newlines (and ending NULL) */
} }
@ -286,7 +289,7 @@ int crypt_list_all_sizes(char *names_list, unsigned long *names_list_size) {
strcpy(ptr, ","); strcpy(ptr, ",");
ptr += 1; ptr += 1;
number_len = sprintf(number,"%lu",_crypt_sizes[i].size); number_len = snprintf(number, sizeof(number), "%ld", _crypt_sizes[i].size);
strcpy(ptr, number); strcpy(ptr, number);
ptr += number_len; ptr += number_len;
strcpy(ptr, "\n"); strcpy(ptr, "\n");