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-rw-r--r--chat.c1
-rw-r--r--chat.h6
-rw-r--r--event.c79
-rw-r--r--handle.c9
-rw-r--r--input.c7
-rw-r--r--irc.c97
-rw-r--r--ui.c4
7 files changed, 75 insertions, 128 deletions
diff --git a/chat.c b/chat.c
index f3d7cc2..fa9cfe7 100644
--- a/chat.c
+++ b/chat.c
@@ -76,6 +76,5 @@ int main(int argc, char *argv[]) {
inputTab();
uiInit();
- ircInit();
eventLoop();
}
diff --git a/chat.h b/chat.h
index 7e320eb..01dcd72 100644
--- a/chat.h
+++ b/chat.h
@@ -48,7 +48,6 @@ struct {
void eventWait(const char *argv[static 2]);
void eventPipe(const char *argv[static 2]);
-void eventQuit(void);
noreturn void eventLoop(void);
struct Tag {
@@ -106,16 +105,15 @@ void handle(char *line);
void input(struct Tag tag, char *line);
void inputTab(void);
-void ircInit(void);
int ircConnect(void);
-bool ircRead(void);
+void ircRead(void);
void ircWrite(const char *ptr, size_t len);
void ircFmt(const char *format, ...) __attribute__((format(printf, 1, 2)));
void uiInit(void);
void uiShow(void);
void uiHide(void);
-noreturn void uiExit(void);
+void uiExit(void);
void uiDraw(void);
void uiRead(void);
void uiPrompt(void);
diff --git a/event.c b/event.c
index fe48345..444e7df 100644
--- a/event.c
+++ b/event.c
@@ -31,20 +31,12 @@
#include "chat.h"
static struct {
- bool quit;
bool wait;
- bool susp;
- int irc;
int pipe;
-} event = {
- .irc = -1,
+} child = {
.pipe = -1,
};
-void eventQuit(void) {
- event.quit = true;
-}
-
void eventWait(const char *argv[static 2]) {
uiHide();
pid_t pid = fork();
@@ -53,7 +45,7 @@ void eventWait(const char *argv[static 2]) {
execvp(argv[0], (char *const *)argv);
err(EX_CONFIG, "%s", argv[0]);
}
- event.wait = true;
+ child.wait = true;
}
static void childWait(void) {
@@ -69,11 +61,11 @@ static void childWait(void) {
"event: signal %s", strsignal(WTERMSIG(status))
);
}
- event.wait = false;
+ child.wait = false;
}
void eventPipe(const char *argv[static 2]) {
- if (event.pipe > 0) {
+ if (child.pipe > 0) {
uiLog(TagStatus, UIHot, L"event: existing pipe");
return;
}
@@ -96,20 +88,20 @@ void eventPipe(const char *argv[static 2]) {
}
close(rw[1]);
- event.pipe = rw[0];
+ child.pipe = rw[0];
}
-static void pipeRead(void) {
+static void childRead(void) {
char buf[256];
- ssize_t len = read(event.pipe, buf, sizeof(buf) - 1);
+ ssize_t len = read(child.pipe, buf, sizeof(buf) - 1);
if (len < 0) err(EX_IOERR, "read");
if (len) {
buf[len] = '\0';
buf[strcspn(buf, "\n")] = '\0';
uiFmt(TagStatus, UIHot, "event: %s", buf);
} else {
- close(event.pipe);
- event.pipe = -1;
+ close(child.pipe);
+ child.pipe = -1;
}
}
@@ -128,66 +120,45 @@ noreturn void eventLoop(void) {
};
sigaction(SIGCHLD, &action, NULL);
sigaction(SIGINT, &action, NULL);
- sigaction(SIGTSTP, &action, NULL);
struct sigaction curses;
sigaction(SIGWINCH, &action, &curses);
assert(!(curses.sa_flags & SA_SIGINFO));
- event.irc = ircConnect();
+ uiFmt(TagStatus, UICold, "Traveling to %s...", self.host);
+ int irc = ircConnect();
+
for (;;) {
if (sig[SIGCHLD]) childWait();
if (sig[SIGINT]) {
signal(SIGINT, SIG_DFL);
ircFmt("QUIT :Goodbye\r\n");
- event.quit = true;
- }
- if (sig[SIGTSTP]) {
- signal(SIGTSTP, SIG_DFL);
- ircFmt("QUIT :zzz\r\n");
- event.susp = true;
}
if (sig[SIGWINCH]) {
curses.sa_handler(SIGWINCH);
uiRead();
+ uiDraw();
}
- sig[SIGCHLD] = sig[SIGINT] = sig[SIGTSTP] = sig[SIGWINCH] = 0;
+ sig[SIGCHLD] = sig[SIGINT] = sig[SIGWINCH] = 0;
- nfds_t nfds = 0;
struct pollfd fds[3] = {
- { .events = POLLIN },
- { .events = POLLIN },
- { .events = POLLIN },
+ { .events = POLLIN, .fd = irc },
+ { .events = POLLIN, .fd = STDIN_FILENO },
+ { .events = POLLIN, .fd = child.pipe },
};
- if (!event.wait) fds[nfds++].fd = STDIN_FILENO;
- if (event.irc > 0) fds[nfds++].fd = event.irc;
- if (event.pipe > 0) fds[nfds++].fd = event.pipe;
+ if (child.wait) fds[1].events = 0;
+ if (child.pipe < 0) fds[2].events = 0;
- int ready = poll(fds, nfds, -1);
- if (ready < 0) {
+ int nfds = poll(fds, 3, -1);
+ if (nfds < 0) {
if (errno == EINTR) continue;
err(EX_IOERR, "poll");
}
- for (nfds_t i = 0; i < nfds; ++i) {
- if (!fds[i].revents) continue;
- if (fds[i].fd == STDIN_FILENO) uiRead();
- if (fds[i].fd == event.pipe) pipeRead();
- if (fds[i].fd == event.irc) {
- if (ircRead()) continue;
- event.irc = -1;
- // TODO: Handle unintended disconnects.
- if (event.quit) uiExit();
- if (event.susp) {
- uiHide();
- raise(SIGTSTP);
- sigaction(SIGTSTP, &action, NULL);
- uiShow();
- event.irc = ircConnect();
- event.susp = false;
- }
- }
- }
+ if (fds[0].revents) ircRead();
+ if (fds[1].revents) uiRead();
+ if (fds[2].revents) childRead();
+
uiDraw();
}
}
diff --git a/handle.c b/handle.c
index 973845f..137f859 100644
--- a/handle.c
+++ b/handle.c
@@ -94,6 +94,14 @@ static void handlePing(char *prefix, char *params) {
ircFmt("PONG %s\r\n", params);
}
+static void handleError(char *prefix, char *params) {
+ (void)prefix;
+ (void)params;
+ // TODO: Show error if unintended disconnect.
+ uiExit();
+ exit(EX_OK);
+}
+
static void handleErrorErroneousNickname(char *prefix, char *params) {
char *mesg;
parse(prefix, NULL, NULL, NULL, params, 3, 0, NULL, NULL, &mesg);
@@ -470,6 +478,7 @@ static const struct {
{ "401", handleErrorNoSuchNick },
{ "432", handleErrorErroneousNickname },
{ "433", handleErrorErroneousNickname },
+ { "ERROR", handleError },
{ "JOIN", handleJoin },
{ "KICK", handleKick },
{ "NICK", handleNick },
diff --git a/input.c b/input.c
index d31172c..cc52928 100644
--- a/input.c
+++ b/input.c
@@ -105,12 +105,7 @@ static void inputTopic(struct Tag tag, char *params) {
static void inputQuit(struct Tag tag, char *params) {
(void)tag;
- if (params) {
- ircFmt("QUIT :%s\r\n", params);
- } else {
- ircFmt("QUIT :Goodbye\r\n");
- }
- eventQuit();
+ ircFmt("QUIT :%s\r\n", params ? params : "Goodbye");
}
static void inputURL(struct Tag tag, char *params) {
diff --git a/irc.c b/irc.c
index 81c3f9a..5253b48 100644
--- a/irc.c
+++ b/irc.c
@@ -19,7 +19,6 @@
#include <netdb.h>
#include <netinet/in.h>
#include <stdarg.h>
-#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -30,31 +29,21 @@
#include "chat.h"
-static struct {
- struct tls_config *config;
- struct tls *client;
- int sock;
-} irc = {
- .sock = -1,
-};
-
-void ircInit(void) {
- irc.config = tls_config_new();
- int error = tls_config_set_ciphers(irc.config, "compat");
- if (error) errx(EX_SOFTWARE, "tls_config");
-
- irc.client = tls_client();
- if (!irc.client) errx(EX_SOFTWARE, "tls_client");
-}
+static struct tls *client;
int ircConnect(void) {
int error;
- tls_reset(irc.client);
- error = tls_configure(irc.client, irc.config);
- if (error) errx(EX_SOFTWARE, "tls_configure: %s", tls_error(irc.client));
+ struct tls_config *config = tls_config_new();
+ error = tls_config_set_ciphers(config, "compat");
+ if (error) errx(EX_SOFTWARE, "tls_config");
+
+ client = tls_client();
+ if (!client) errx(EX_SOFTWARE, "tls_client");
- uiFmt(TagStatus, UICold, "Traveling to %s", self.host);
+ error = tls_configure(client, config);
+ if (error) errx(EX_SOFTWARE, "tls_configure: %s", tls_error(client));
+ tls_config_free(config);
struct addrinfo *head;
struct addrinfo hints = {
@@ -65,24 +54,25 @@ int ircConnect(void) {
error = getaddrinfo(self.host, self.port, &hints, &head);
if (error) errx(EX_NOHOST, "getaddrinfo: %s", gai_strerror(error));
+ int sock = -1;
for (struct addrinfo *ai = head; ai; ai = ai->ai_next) {
- irc.sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
- if (irc.sock < 0) err(EX_OSERR, "socket");
+ sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
+ if (sock < 0) err(EX_OSERR, "socket");
- error = connect(irc.sock, ai->ai_addr, ai->ai_addrlen);
+ error = connect(sock, ai->ai_addr, ai->ai_addrlen);
if (!error) break;
- close(irc.sock);
- irc.sock = -1;
+ close(sock);
+ sock = -1;
}
- if (irc.sock < 0) err(EX_UNAVAILABLE, "connect");
+ if (sock < 0) err(EX_UNAVAILABLE, "connect");
freeaddrinfo(head);
- error = fcntl(irc.sock, F_SETFD, FD_CLOEXEC);
+ error = fcntl(sock, F_SETFD, FD_CLOEXEC);
if (error) err(EX_IOERR, "fcntl");
- error = tls_connect_socket(irc.client, irc.sock, self.host);
- if (error) errx(EX_PROTOCOL, "tls_connect: %s", tls_error(irc.client));
+ error = tls_connect_socket(client, sock, self.host);
+ if (error) errx(EX_PROTOCOL, "tls_connect: %s", tls_error(client));
const char *ssh = getenv("SSH_CLIENT");
if (self.webp && ssh) {
@@ -95,18 +85,19 @@ int ircConnect(void) {
);
}
+ if (self.auth) ircFmt("CAP REQ :sasl\r\n");
if (self.pass) ircFmt("PASS :%s\r\n", self.pass);
ircFmt("NICK %s\r\n", self.nick);
ircFmt("USER %s 0 * :%s\r\n", self.user, self.real);
- return irc.sock;
+ return sock;
}
void ircWrite(const char *ptr, size_t len) {
while (len) {
- ssize_t ret = tls_write(irc.client, ptr, len);
+ ssize_t ret = tls_write(client, ptr, len);
if (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT) continue;
- if (ret < 0) errx(EX_IOERR, "tls_write: %s", tls_error(irc.client));
+ if (ret < 0) errx(EX_IOERR, "tls_write: %s", tls_error(client));
ptr += ret;
len -= ret;
}
@@ -116,47 +107,34 @@ void ircFmt(const char *format, ...) {
char *buf;
va_list ap;
va_start(ap, format);
- int len = vasprintf(&buf, format, ap);
+ int len = vasprintf(&buf, format, ap);
va_end(ap);
if (!buf) err(EX_OSERR, "vasprintf");
if (self.verbose) {
- uiFmt(
- TagVerbose, UICold,
- "\3%d<<<\3 %.*s", IRCWhite, len - 2, buf
- );
+ uiFmt(TagVerbose, UICold, "\3%d<<<\3 %.*s", IRCWhite, len - 2, buf);
}
ircWrite(buf, len);
free(buf);
}
-static void disconnect(void) {
- int error = tls_close(irc.client);
- if (error) errx(EX_IOERR, "tls_close: %s", tls_error(irc.client));
- error = close(irc.sock);
- if (error) err(EX_IOERR, "close");
-}
-
-bool ircRead(void) {
+void ircRead(void) {
static char buf[4096];
static size_t len;
- ssize_t read = tls_read(irc.client, &buf[len], sizeof(buf) - len);
- if (read < 0) errx(EX_IOERR, "tls_read: %s", tls_error(irc.client));
- if (!read) {
- disconnect();
- len = 0;
- return false;
- }
+ ssize_t read;
+retry:
+ read = tls_read(client, &buf[len], sizeof(buf) - len);
+ if (read == TLS_WANT_POLLIN || read == TLS_WANT_POLLOUT) goto retry;
+ if (read < 0) errx(EX_IOERR, "tls_read: %s", tls_error(client));
+ if (!read) errx(EX_PROTOCOL, "unexpected eof");
len += read;
- char *crlf, *line = buf;
- while ((crlf = strnstr(line, "\r\n", &buf[len] - line))) {
+ char *crlf;
+ char *line = buf;
+ while (NULL != (crlf = strnstr(line, "\r\n", &buf[len] - line))) {
crlf[0] = '\0';
if (self.verbose) {
- uiFmt(
- TagVerbose, UICold,
- "\3%d>>>\3 %s", IRCGray, line
- );
+ uiFmt(TagVerbose, UICold, "\3%d>>>\3 %s", IRCGray, line);
}
handle(line);
line = &crlf[2];
@@ -164,5 +142,4 @@ bool ircRead(void) {
len -= line - buf;
memmove(buf, line, len);
- return true;
}
diff --git a/ui.c b/ui.c
index 5a26aa2..a7bec55 100644
--- a/ui.c
+++ b/ui.c
@@ -22,7 +22,6 @@
#include <stdarg.h>
#include <stdbool.h>
#include <stdlib.h>
-#include <stdnoreturn.h>
#include <string.h>
#include <sysexits.h>
#include <wchar.h>
@@ -112,13 +111,12 @@ void uiInit(void) {
uiShow();
}
-noreturn void uiExit(void) {
+void uiExit(void) {
uiHide();
printf(
"This program is AGPLv3 Free Software!\n"
"The source is available at <" SOURCE_URL ">.\n"
);
- exit(EX_OK);
}
static int lastLine(void) {
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-31 01:35:04 +0000