all: use the static keyword on functions

src/http.c

@@ -11,10 +11,10 @@ enum {
     AUTH_OK, AUTH_FAIL, AUTH_ERROR
 };
 
-char * html_cache = NULL;
-size_t html_cache_len = 0;
+static char * html_cache = NULL;
+static size_t html_cache_len = 0;
 
-int
+static int
 check_auth(struct lws *wsi, struct pss_http *pss) {
     if (server->credential == NULL)
         return AUTH_OK;
@@ -67,14 +67,15 @@ check_auth(struct lws *wsi, struct pss_http *pss) {
     return AUTH_FAIL;
 }
 
-bool accept_gzip(struct lws *wsi) {
+static bool
+accept_gzip(struct lws *wsi) {
     int hdr_length = lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_ACCEPT_ENCODING);
     char buf[hdr_length + 1];
     int len = lws_hdr_copy(wsi, buf, sizeof(buf), WSI_TOKEN_HTTP_ACCEPT_ENCODING);
     return len > 0 && strstr(buf, "gzip") != NULL;
 }
 
-bool
+static bool
 uncompress_html(char **output, size_t *output_len) {
     if (html_cache == NULL || html_cache_len == 0) {
         z_stream stream;
@@ -106,13 +107,13 @@ uncompress_html(char **output, size_t *output_len) {
     return true;
 }
 
-void
+static void
 pss_buffer_free(struct pss_http *pss) {
     if (pss->buffer != (char *) index_html && pss->buffer != html_cache)
         free(pss->buffer);
 }
 
-void
+static void
 access_log(struct lws *wsi, const char *path) {
     char rip[50];
 

src/protocol.c

@@ -14,12 +14,12 @@
 #include "utils.h"
 
 // initial message list
-char initial_cmds[] = {
+static char initial_cmds[] = {
         SET_WINDOW_TITLE,
         SET_PREFERENCES
 };
 
-int
+static int
 send_initial_message(struct lws *wsi, int index) {
     unsigned char message[LWS_PRE + 1 + 4096];
     unsigned char *p = &message[LWS_PRE];
@@ -42,7 +42,7 @@ send_initial_message(struct lws *wsi, int index) {
     return lws_write(wsi, p, (size_t) n, LWS_WRITE_BINARY);
 }
 
-bool
+static bool
 parse_window_size(struct pss_tty *pss, int *cols, int *rows) {
     char json[pss->len];
     strncpy(json, pss->buffer + 1, pss->len - 1);
@@ -66,7 +66,7 @@ parse_window_size(struct pss_tty *pss, int *cols, int *rows) {
     return true;
 }
 
-bool
+static bool
 check_host_origin(struct lws *wsi) {
     int origin_length = lws_hdr_total_length(wsi, WSI_TOKEN_ORIGIN);
     char buf[origin_length + 1];
@@ -96,7 +96,7 @@ check_host_origin(struct lws *wsi) {
     return len > 0 && strcasecmp(buf, host_buf) == 0;
 }
 
-void
+static void
 pty_proc_free(struct pty_proc *proc) {
     uv_read_stop((uv_stream_t *) &proc->pipe);
     uv_close((uv_handle_t*) &proc->pipe, NULL);
@@ -115,13 +115,13 @@ pty_proc_free(struct pty_proc *proc) {
     free(proc);
 }
 
-void
+static void
 alloc_cb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf) {
     buf->base = xmalloc(suggested_size);
     buf->len = suggested_size;
 }
 
-void
+static void
 read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
     struct pss_tty *pss = (struct pss_tty *) stream->data;
     struct pty_proc *proc = pss->proc;
@@ -146,7 +146,7 @@ read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
     lws_callback_on_writable(pss->wsi);
 }
 
-void
+static void
 child_cb(uv_signal_t *handle, int signum) {
     pid_t pid;
     int stat;
@@ -182,7 +182,7 @@ child_cb(uv_signal_t *handle, int signum) {
     }
 }
 
-int
+static int
 spawn_process(struct pss_tty *pss) {
     struct pty_proc *proc = pss->proc;
     // append url args to arguments
@@ -218,7 +218,7 @@ spawn_process(struct pss_tty *pss) {
     return 0;
 }
 
-void
+static void
 kill_process(struct pty_proc *proc) {
     if (proc->pid <= 0) return;
 
@@ -233,7 +233,7 @@ kill_process(struct pty_proc *proc) {
     }
 }
 
-void
+static void
 write_cb(uv_write_t* req, int status) {
     if (status != 0)
         lwsl_warn("uv_write callback returned status: %d\n", status);

src/server.c

@@ -68,7 +68,8 @@ static const struct option options[] = {
 };
 static const char *opt_string = "p:i:c:u:g:s:I:b:6aSC:K:A:Rt:T:Om:oBd:vh";
 
-void print_help() {
+static void
+print_help() {
     fprintf(stderr, "ttyd is a tool for sharing terminal over the web\n\n"
                     "USAGE:\n"
                     "    ttyd [options] <command> [<arguments...>]\n\n"
@@ -106,7 +107,7 @@ void print_help() {
     );
 }
 
-struct server *
+static struct server *
 server_new(int argc, char **argv, int start) {
     struct server *ts;
     size_t cmd_len = 0;
@@ -153,7 +154,7 @@ server_new(int argc, char **argv, int start) {
     return ts;
 }
 
-void
+static void
 server_free(struct server *ts) {
     if (ts == NULL)
         return;
@@ -180,7 +181,7 @@ server_free(struct server *ts) {
     free(ts);
 }
 
-void
+static void
 signal_cb(uv_signal_t *watcher, int signum) {
     char sig_name[20];
 
@@ -208,7 +209,7 @@ signal_cb(uv_signal_t *watcher, int signum) {
 #endif
 }
 
-int
+static int
 calc_command_start(int argc, char **argv) {
     // make a copy of argc and argv
     int argc_copy = argc;