Communicate through a Unix socket instead of a pipe pair - surf - surf browser, a WebKit based browser
(HTM) git clone git://git.suckless.org/surf
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---
(DIR) commit e92fd1aa5f38c399f8fc5d263026fbd9d34ddfbb
(DIR) parent f61cfc720c598491d7a93c9f314ceae349e00450
(HTM) Author: Quentin Rameau <quinq@fifth.space>
Date: Sat, 7 Sep 2019 13:20:09 +0200
Communicate through a Unix socket instead of a pipe pair
Diffstat:
M surf.c | 62 ++++++++++++++++---------------
M webext-surf.c | 60 +++++++++++++++++--------------
2 files changed, 65 insertions(+), 57 deletions(-)
---
(DIR) diff --git a/surf.c b/surf.c
@@ -3,6 +3,7 @@
* To understand surf, start reading main().
*/
#include <sys/file.h>
+#include <sys/socket.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <glib.h>
@@ -187,7 +188,7 @@ static gboolean buttonreleased(GtkWidget *w, GdkEvent *e, Client *c);
static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event,
gpointer d);
static gboolean winevent(GtkWidget *w, GdkEvent *e, Client *c);
-static gboolean readpipe(GIOChannel *s, GIOCondition ioc, gpointer unused);
+static gboolean readsock(GIOChannel *s, GIOCondition ioc, gpointer unused);
static void showview(WebKitWebView *v, Client *c);
static GtkWidget *createwindow(Client *c);
static gboolean loadfailedtls(WebKitWebView *v, gchar *uri,
@@ -253,7 +254,7 @@ static char *stylefile;
static const char *useragent;
static Parameter *curconfig;
static int modparams[ParameterLast];
-static int pipein[2], pipeout[2];
+static int spair[2];
char *argv0;
static ParamName loadtransient[] = {
@@ -359,13 +360,15 @@ setup(void)
gdkkb = gdk_seat_get_keyboard(gdk_display_get_default_seat(gdpy));
- if (pipe(pipeout) < 0 || pipe(pipein) < 0) {
- fputs("Unable to create pipes\n", stderr);
+ if (socketpair(AF_UNIX, SOCK_DGRAM, 0, spair) < 0) {
+ fputs("Unable to create sockets\n", stderr);
+ spair[0] = spair[1] = -1;
} else {
- gchanin = g_io_channel_unix_new(pipein[0]);
+ gchanin = g_io_channel_unix_new(spair[0]);
g_io_channel_set_encoding(gchanin, NULL, NULL);
+ g_io_channel_set_flags(gchanin, G_IO_FLAG_NONBLOCK, NULL);
g_io_channel_set_close_on_unref(gchanin, TRUE);
- g_io_add_watch(gchanin, G_IO_IN, readpipe, NULL);
+ g_io_add_watch(gchanin, G_IO_IN, readsock, NULL);
}
@@ -1054,8 +1057,8 @@ spawn(Client *c, const Arg *a)
if (fork() == 0) {
if (dpy)
close(ConnectionNumber(dpy));
- close(pipein[0]);
- close(pipeout[1]);
+ close(spair[0]);
+ close(spair[1]);
setsid();
execvp(((char **)a->v)[0], (char **)a->v);
fprintf(stderr, "%s: execvp %s", argv0, ((char **)a->v)[0]);
@@ -1089,8 +1092,8 @@ cleanup(void)
while (clients)
destroyclient(clients);
- close(pipein[0]);
- close(pipeout[1]);
+ close(spair[0]);
+ close(spair[1]);
g_free(cookiefile);
g_free(scriptfile);
g_free(stylefile);
@@ -1233,30 +1236,26 @@ newview(Client *c, WebKitWebView *rv)
}
static gboolean
-readpipe(GIOChannel *s, GIOCondition ioc, gpointer unused)
+readsock(GIOChannel *s, GIOCondition ioc, gpointer unused)
{
- static char msg[MSGBUFSZ], msgsz;
+ static char msg[MSGBUFSZ];
GError *gerr = NULL;
+ gsize msgsz;
- if (g_io_channel_read_chars(s, msg, sizeof(msg), NULL, &gerr) !=
+ if (g_io_channel_read_chars(s, msg, sizeof(msg), &msgsz, &gerr) !=
G_IO_STATUS_NORMAL) {
- fprintf(stderr, "surf: error reading pipe: %s\n",
- gerr->message);
- g_error_free(gerr);
+ if (gerr) {
+ fprintf(stderr, "surf: error reading socket: %s\n",
+ gerr->message);
+ g_error_free(gerr);
+ }
return TRUE;
}
- if ((msgsz = msg[0]) < 3) {
+ if (msgsz < 2) {
fprintf(stderr, "surf: message too short: %d\n", msgsz);
return TRUE;
}
- switch (msg[2]) {
- case 'i':
- close(pipein[1]);
- close(pipeout[0]);
- break;
- }
-
return TRUE;
}
@@ -1265,10 +1264,10 @@ initwebextensions(WebKitWebContext *wc, Client *c)
{
GVariant *gv;
- if (!pipeout[0] || !pipein[1])
+ if (spair[1] < 0)
return;
- gv = g_variant_new("(ii)", pipeout[0], pipein[1]);
+ gv = g_variant_new("i", spair[1]);
webkit_web_context_set_web_extensions_initialization_user_data(wc, gv);
webkit_web_context_set_web_extensions_directory(wc, WEBEXTDIR);
@@ -1874,15 +1873,18 @@ msgext(Client *c, char type, const Arg *a)
static char msg[MSGBUFSZ];
int ret;
- if ((ret = snprintf(msg, sizeof(msg), "%c%c%c%c",
- 4, c->pageid, type, a->i))
+ if (spair[0] < 0)
+ return;
+
+ if ((ret = snprintf(msg, sizeof(msg), "%c%c%c", c->pageid, type, a->i))
>= sizeof(msg)) {
fprintf(stderr, "surf: message too long: %d\n", ret);
return;
}
- if (pipeout[1] && write(pipeout[1], msg, sizeof(msg)) < 0)
- fprintf(stderr, "surf: error sending: %.*s\n", ret-2, msg+2);
+ if (send(spair[0], msg, ret, 0) != ret)
+ fprintf(stderr, "surf: error sending: %d%c%d (%dB)\n",
+ c->pageid, type, a->i, ret);
}
void
(DIR) diff --git a/webext-surf.c b/webext-surf.c
@@ -1,6 +1,8 @@
+#include <sys/socket.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <limits.h>
+#include <stdio.h>
#include <stdlib.h>
#include <gio/gio.h>
@@ -18,7 +20,7 @@ typedef struct Page {
struct Page *next;
} Page;
-static int pipein, pipeout;
+static int sock;
static Page *pages;
Page *
@@ -47,60 +49,64 @@ msgsurf(Page *p, const char *s)
size_t sln = strlen(s);
int ret;
- if ((ret = snprintf(msg, sizeof(msg), "%c%c%s",
- 2 + sln, p ? p->id : 0, s))
+ if ((ret = snprintf(msg, sizeof(msg), "%c%s", p ? p->id : 0, s))
>= sizeof(msg)) {
- fprintf(stderr, "webext: message too long: %d\n", ret);
+ fprintf(stderr, "webext: msg: message too long: %d\n", ret);
return;
}
- if (pipeout && write(pipeout, msg, sizeof(msg)) < 0)
- fprintf(stderr, "webext: error sending: %.*s\n", ret-2, msg+2);
+ if (send(sock, msg, ret, 0) < 0)
+ fprintf(stderr, "webext: error sending: %s\n", msg+1);
}
static gboolean
-readpipe(GIOChannel *s, GIOCondition c, gpointer unused)
+readsock(GIOChannel *s, GIOCondition c, gpointer unused)
{
- static char msg[MSGBUFSZ], msgsz;
+ static char msg[MSGBUFSZ];
WebKitDOMDOMWindow *view;
GError *gerr = NULL;
+ gsize msgsz;
glong wh, ww;
Page *p;
- if (g_io_channel_read_chars(s, msg, LENGTH(msg), NULL, &gerr) !=
+ if (g_io_channel_read_chars(s, msg, LENGTH(msg), &msgsz, &gerr) !=
G_IO_STATUS_NORMAL) {
- fprintf(stderr, "webext: error reading pipe: %s\n",
- gerr->message);
- g_error_free(gerr);
+ if (gerr) {
+ fprintf(stderr, "webext: error reading socket: %s\n",
+ gerr->message);
+ g_error_free(gerr);
+ }
return TRUE;
}
- if ((msgsz = msg[0]) < 3) {
- fprintf(stderr, "webext: message too short: %d\n", msgsz);
+
+ if (msgsz < 2) {
+ fprintf(stderr, "webext: readsock: message too short: %d\n",
+ msgsz);
return TRUE;
}
for (p = pages; p; p = p->next) {
- if (p->id == msg[1])
+ if (p->id == msg[0])
break;
}
if (!p || !(view = webkit_dom_document_get_default_view(
webkit_web_page_get_dom_document(p->webpage))))
return TRUE;
- switch (msg[2]) {
+ switch (msg[1]) {
case 'h':
- if (msgsz != 4)
+ if (msgsz != 3)
return TRUE;
ww = webkit_dom_dom_window_get_inner_width(view);
webkit_dom_dom_window_scroll_by(view,
- (ww / 100) * msg[3], 0);
+ (ww / 100) * msg[2], 0);
break;
case 'v':
- if (msgsz != 4)
+ if (msgsz != 3)
return TRUE;
wh = webkit_dom_dom_window_get_inner_height(view);
webkit_dom_dom_window_scroll_by(view,
- 0, (wh / 100) * msg[3]);
+ 0, (wh / 100) * msg[2]);
break;
}
@@ -116,15 +122,15 @@ webpagecreated(WebKitWebExtension *e, WebKitWebPage *wp, gpointer unused)
G_MODULE_EXPORT void
webkit_web_extension_initialize_with_user_data(WebKitWebExtension *e, GVariant *gv)
{
- GIOChannel *gchanpipe;
+ GIOChannel *gchansock;
g_signal_connect(e, "page-created", G_CALLBACK(webpagecreated), NULL);
- g_variant_get(gv, "(ii)", &pipein, &pipeout);
- msgsurf(NULL, "i");
+ g_variant_get(gv, "i", &sock);
- gchanpipe = g_io_channel_unix_new(pipein);
- g_io_channel_set_encoding(gchanpipe, NULL, NULL);
- g_io_channel_set_close_on_unref(gchanpipe, TRUE);
- g_io_add_watch(gchanpipe, G_IO_IN, readpipe, NULL);
+ gchansock = g_io_channel_unix_new(sock);
+ g_io_channel_set_encoding(gchansock, NULL, NULL);
+ g_io_channel_set_flags(gchansock, G_IO_FLAG_NONBLOCK, NULL);
+ g_io_channel_set_close_on_unref(gchansock, TRUE);
+ g_io_add_watch(gchansock, G_IO_IN, readsock, NULL);
}