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use snprintf instead of sprintf. Fix putting a \0 terminator

This commit is contained in:
Isaac Connor 2020-04-05 13:41:03 -04:00
parent 2d5d87839f
commit 2827ba38cd
1 changed files with 2 additions and 2 deletions
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4
src/zm_user.cpp
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@ -294,10 +294,10 @@ User *zmLoadAuthUser( const char *auth, bool use_remote_addr ) {
gnutls_datum_t md5data = { (unsigned char *)auth_key, strlen(auth_key) };
gnutls_fingerprint( GNUTLS_DIG_MD5, &md5data, md5sum, &md5len );
#endif
auth_md5[0] = '\0';
for ( unsigned int j = 0; j < md5len; j++ ) {
sprintf( &auth_md5[2*j], "%02x", md5sum[j] );
snprintf(&auth_md5[2*j], 2, "%02x", md5sum[j]);
}
auth_md5[md5len*2+1] = '\0';
Debug( 1, "Checking auth_key '%s' -> auth_md5 '%s' == '%s'", auth_key, auth_md5, auth );
if ( !strcmp( auth, auth_md5 ) ) {