diff --git a/dll/nap/nap.c b/dll/nap/nap.c
index fdfc0d8..8dbbb72 100644
--- a/dll/nap/nap.c
+++ b/dll/nap/nap.c
@@ -273,11 +273,9 @@ int connectbynumber(char *hostn, unsigned short *portnum, int service, int proto
 	/* Inet domain client */
 	else if (service == SERVICE_CLIENT)
 	{
-		struct sockaddr_foobar server;
+		struct sockaddr_foobar server = { 0 };
 		struct hostent *hp;
 
-		memset(&server, 0, sizeof(struct sockaddr_in));
-
 		if (isdigit(hostn[strlen(hostn)-1]))
 			inet_aton(hostn, (struct in_addr *)&server.sf_addr);
 		else
@@ -313,15 +311,15 @@ int connectbynumber(char *hostn, unsigned short *portnum, int service, int proto
 	return fd;
 }
 
-
-
 char    *numeric_banner(int curr)
 {
-	static  char    thing[4];
+	static char thing[4];
+
 	if (!get_dllint_var("napster_show_numeric"))
-		return (nap_ansi?nap_ansi:empty_string);
-	sprintf(thing, "%3.3u", curr);
-	return (thing);
+		return nap_ansi ? nap_ansi : empty_string;
+
+	snprintf(thing, sizeof thing, "%3.3d", curr);
+	return thing;
 }
 
 static void set_numeric_string(Window *win, char *value, int unused)
@@ -1015,11 +1013,13 @@ char *chan;
 	if (!(chan = next_arg(args, &args)))
 		return 0;
 	ch = (ChannelStruct *)find_in_list((List **)&nchannels, chan, 0);
+	if (!ch)
+		return 0;
+
 	ch->injoin = 0;
 	if (do_hook(MODULE_LIST, "NAP ENDNAMES %s", chan))
 	{
-		if (ch)
-			name_print(ch->nicks, 0);
+		name_print(ch->nicks, 0);
 	}
 	malloc_strcpy(&nap_current_channel, chan);
 	return 0;
@@ -1746,7 +1746,7 @@ char *type = NULL;
 		}
 		else if (strstr(cmd, "line"))
 		{
-			if (value < 0 || value > 10)
+			if (value > 10)
 			{
 				nap_say("%s", cparse("Allowed linespeed 0-10", NULL));
 				return;
diff --git a/dll/nap/nap_file.c b/dll/nap/nap_file.c
index 963588f..26122f1 100644
--- a/dll/nap/nap_file.c
+++ b/dll/nap/nap_file.c
@@ -482,12 +482,11 @@ unsigned long nbytes = 0;
 	if (gf && gf->count)
 	{
 		int flags = O_WRONLY;
-		memset(&indata, 0, 200);
 		if ((rc = read(snum, &indata, gf->count)) != gf->count)
 			return;
 		if (!isdigit(*indata) || !*(indata+1) || !isdigit(*(indata+1)))
 		{
-			rc += read(snum, &indata[gf->count], sizeof(indata)-1);
+			rc += read(snum, &indata[gf->count], sizeof indata - gf->count);
 			indata[rc] = 0;
 			nap_say("Request from %s is %s", gf->nick, indata);
 			gf = find_in_getfile(&getfile_struct, 1, gf->nick, gf->checksum, gf->filename, -1, NAP_DOWNLOAD);
@@ -525,7 +524,8 @@ unsigned long nbytes = 0;
 		send_ncommand(CMDS_UPDATE_GET, NULL);
 		return;
 	}
-        if ((rc = ioctl(snum, FIONREAD, &nbytes) != -1))
+    rc = ioctl(snum, FIONREAD, &nbytes);
+	if (rc != -1)
 	{
 		if (nbytes)
 		{
diff --git a/dll/nap/napsend.c b/dll/nap/napsend.c
index 4e17eef..bd9ca0b 100644
--- a/dll/nap/napsend.c
+++ b/dll/nap/napsend.c
@@ -65,7 +65,7 @@ char *mime_type[] = {	"x-wav", "x-aiff", "x-midi", "x-mod", "x-mp3", /* 0-4 */
 char *audio[] = {".wav", ".aiff", ".mid", ".mod", ".mp3", ""};
 char *image[] = {".jpg", ".gif", ""};
 char *video[] = {".mpg", ".dat", ""};
-char *application[] = {".tar.gz" ".tar.Z", ".Z", ".gz", ".arc", ".bz2", ".zip", ""};
+char *application[] = {".tar.gz", ".tar.Z", ".Z", ".gz", ".arc", ".bz2", ".zip", ""};
 
 char *find_mime_type(char *fn)
 {
@@ -259,7 +259,7 @@ char *make_mp3_string(FILE *fp, Files *f, char *fs, char *dirbuff)
 					*s++ = *fs;
 					break;
 				case 'b':
-					sprintf(s, "%*u", prec, f->bitrate);
+					sprintf(s, "%*d", prec, f->bitrate);
 					break;
 				case 's':
 					if (!prec) prec = 3;
@@ -287,7 +287,7 @@ char *make_mp3_string(FILE *fp, Files *f, char *fs, char *dirbuff)
 					sprintf(s, "%*.*f", prec, fl, ((double)f->freq) / ((double)1000.0));
 					break;
 				case 'h':
-					sprintf(s, "%*u", prec, f->freq);
+					sprintf(s, "%*d", prec, f->freq);
 					break;
 				default:
 					*s++ = *fs;
@@ -364,7 +364,7 @@ char *fs = NULL;
 	*dir = 0;
 	for (new = fserv_files; new; new = new->next)
 	{
-		if (!pattern || (pattern && wild_match(pattern, new->filename)))
+		if (!pattern || wild_match(pattern, new->filename))
 		{
 			char *p;
 			p = base_name(new->filename);
@@ -681,7 +681,7 @@ long get_bitrate(int fdes, time_t *mp3_time, int *freq_rate, unsigned long *file
 		lseek(fdes, 0, SEEK_SET);
 		*id3 = 0;
 		rc = read(fdes, buff, 128);
-		if (!strncmp(buff, "ID3", 3))
+		if (rc == 128 && !strncmp(buff, "ID3", 3))
 		{
 			struct id3v2 {
 				char tag[3];
@@ -725,8 +725,6 @@ md5_state_t state;
 char buffer[BIG_BUFFER_SIZE+1];
 struct stat st;
 unsigned long size = DEFAULT_MD5_SIZE;
-int di = 0;
-int rc;
 
 #if !defined(WINNT) && !defined(__EMX__)
 	char *m;
@@ -750,7 +748,9 @@ int rc;
 #if defined(WINNT) || defined(__EMX__)
 	while (size)
 	{
+		int rc;
 		unsigned char md5_buff[8 * NAP_BUFFER_SIZE+1];
+
 		rc = (size >= (8 * NAP_BUFFER_SIZE)) ?  8 * NAP_BUFFER_SIZE : size;
 		rc = read(r, md5_buff, rc);
 		md5_append(&state, (unsigned char *)md5_buff, rc);
@@ -768,11 +768,13 @@ int rc;
 		md5_finish(digest, &state);
 		munmap(m, size);
 #endif
-		memset(buffer, 0, 200);
-		for (di = 0, rc = 0; di < 16; ++di, rc += 2)
-			snprintf(&buffer[rc], BIG_BUFFER_SIZE, "%02x", digest[di]);
-		strcat(buffer, "-");
-		strcat(buffer, ltoa(st.st_size));
+		snprintf(buffer, sizeof buffer, 
+			"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x-%ld",
+			digest[0], digest[1], digest[2], digest[3],
+			digest[4], digest[5], digest[6], digest[7], 
+			digest[8], digest[9], digest[10], digest[11],
+			digest[12], digest[13], digest[14], digest[15],
+			(long)st.st_size);
 	}
 	return m_strdup(buffer);
 }
@@ -859,7 +861,7 @@ unsigned int scan_mp3_dir(char *path, int recurse, int reload, int share, int se
 			count++;
 			if (share && (nap_socket != -1))
 			{
-				sprintf(buffer, "\"%s\" %s %lu %u %u %ld", new->filename, 
+				sprintf(buffer, "\"%s\" %s %lu %d %d %ld", new->filename, 
 					new->checksum, new->filesize, new->bitrate, new->freq, 
 					(long)new->time);
 				send_ncommand(CMDS_ADDFILE, convertnap_dos(buffer));
@@ -969,7 +971,7 @@ Files *new;
 	{
 		for (new = fserv_files; new; new = new->next)
 		{
-			fprintf(fp, "\"%s\" %s %lu %u %u %ld\n",
+			fprintf(fp, "\"%s\" %s %lu %d %d %ld\n",
 				new->filename, new->checksum, new->filesize, 
 				new->bitrate, new->freq, (long)new->time);
 			count++;
@@ -1119,7 +1121,7 @@ Files	*new;
 		
 		if (new->freq && new->bitrate)
 		{
-			sprintf(buffer, "\"%s\" %s %lu %u %u %ld", name, 
+			sprintf(buffer, "\"%s\" %s %lu %d %d %ld", name, 
 				new->checksum, new->filesize, new->bitrate, new->freq, 
 				(long)new->time);
 			cmd = CMDS_ADDFILE;
@@ -1537,7 +1539,6 @@ void nap_firewall_start(int snum)
 void napfile_read(int snum)
 {
 	GetFile *gf;
-	char buffer[NAP_BUFFER_SIZE+1];
 	int rc;
 	SocketList *s = get_socket(snum);
 
@@ -1574,7 +1575,6 @@ void napfile_read(int snum)
 			|| !(gf = find_in_getfile(&napster_sendqueue, 0, nick, NULL, fbuff, -1, NAP_UPLOAD)) 
 			|| (gf->write == -1))
 		{
-			memset(buff, 0, 80);
 			if (!gf)
 				sprintf(buff, "0INVALID REQUEST");
 			else
@@ -1583,7 +1583,7 @@ void napfile_read(int snum)
 				if ((gf = find_in_getfile(&napster_sendqueue, 1, nick, NULL, fbuff, -1, NAP_UPLOAD)))
 					gf->socket = snum;
 			}
-			write(snum, buff, strlen(buffer));
+			write(snum, buff, strlen(buff));
 			nap_finished_file(snum, gf);
 			return;
 		}
@@ -1597,7 +1597,6 @@ void napfile_read(int snum)
 		gf->socket = snum;
 		lseek(gf->write, SEEK_SET, gf->resume);
 		set_socketinfo(snum, gf);
-		memset(buff, 0, 80);
 		sprintf(buff, "%lu", gf->filesize);
 		write(snum, buff, strlen(buff));
 		s->func_write = s->func_read;
@@ -1617,11 +1616,10 @@ void napfile_read(int snum)
 
 void naplink_handleconnect(int snum)
 {
-	char buff[2*NAP_BUFFER_SIZE+1];
+	char buff[2*NAP_BUFFER_SIZE+1] = { 0 };
 	SocketList *s;
 	int rc;
 
-	memset(buff, 0, sizeof(buff) - 1);
 	switch ((rc = recv(snum, buff, 4, MSG_PEEK)))
 	{