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Refactored make_random_string()

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Signed-off-by: Janos SUTO <sj@acts.hu>
This commit is contained in:
Janos SUTO 2019-11-27 20:11:07 +01:00
parent 5380196325
commit ce193974f1
4 changed files with 8 additions and 9 deletions
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2
src/extract.c
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@ -164,7 +164,7 @@ int extract_tnef(struct session_data *sdata, struct parser_state *state, char *f
struct dirent **namelist;
memset(tmpdir, 0, sizeof(tmpdir));
make_random_string(&tmpdir[0], sizeof(tmpdir)-3);
make_random_string((unsigned char *)&tmpdir[0], sizeof(tmpdir)-3);
memcpy(&tmpdir[sizeof(tmpdir)-3], ".d", 2);

9
src/misc.c
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@ -269,19 +269,18 @@ int extractEmail(char *rawmail, char *email){
* using the rand() function if not possible
*/
void make_random_string(char *buf, int buflen){
void make_random_string(unsigned char *buf, int buflen){
int i, len, fd;
int urandom=0;
static char alphanum[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
unsigned char s[QUEUE_ID_LEN];
len = strlen(alphanum);
fd = open(RANDOM_POOL, O_RDONLY);
if(fd != -1){
if(readFromEntropyPool(fd, s, sizeof(s)) == sizeof(s)){
for(i=0; i<QUEUE_ID_LEN; i++){
*(buf+i) = alphanum[s[i] % len];
if(readFromEntropyPool(fd, buf, buflen) == buflen){
for(i=0; i<buflen; i++){
*(buf+i) = alphanum[*(buf+i) % len];
}
urandom = 1;

2
src/misc.h
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@ -26,7 +26,7 @@ char *split_str(char *row, char *what, char *s, int size);
int trimBuffer(char *s);
int extractEmail(char *rawmail, char *email);
int extract_verp_address(char *email);
void make_random_string(char *buf, int buflen);
void make_random_string(unsigned char *buf, int buflen);
void create_id(char *id, unsigned char server_id);
int get_random_bytes(unsigned char *buf, int len, unsigned char server_id);
int readFromEntropyPool(int fd, void *_s, ssize_t n);

2
src/smtp.c
View File

@ -208,7 +208,7 @@ void process_command_mail_from(struct smtp_session *session, char *buf){
}
else {
memset(&(session->ttmpfile[0]), 0, SMALLBUFSIZE);
make_random_string(&(session->ttmpfile[0]), QUEUE_ID_LEN);
make_random_string((unsigned char*)&(session->ttmpfile[0]), QUEUE_ID_LEN);
session->protocol_state = SMTP_STATE_MAIL_FROM;
extractEmail(buf, session->mailfrom);