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-rw-r--r--.github/FUNDING.yml2
-rw-r--r--kirc.c314
2 files changed, 161 insertions, 155 deletions
diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
index 0ed242e..7f8799f 100644
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -1,6 +1,6 @@
# These are supported funding model platforms
-github: # Replace with a single Patreon username
+github: mcpcpc
patreon: # Replace with a single Patreon username
open_collective: # Replace with a single Open Collective username
ko_fi: # Replace with a single Ko-fi username
diff --git a/kirc.c b/kirc.c
index 863c9f3..b94c904 100644
--- a/kirc.c
+++ b/kirc.c
@@ -13,7 +13,7 @@
#include <termios.h>
#include <sys/ioctl.h>
-#define VERSION "0.2.0" /* version */
+#define VERSION "0.2.1" /* version */
#define AUTHORS "Michael Czigler" /* authors */
#define MSG_MAX 512 /* max message length */
#define CHA_MAX 200 /* max channel length */
@@ -53,45 +53,45 @@ static int rawmode = 0; /* check if restore is needed */
static int atexit_registered = 0; /* register atexit() */
struct State {
- char * prompt; /* Prompt to display. */
- char * buf; /* Edited line buffer. */
- size_t buflen; /* Edited line buffer size. */
- size_t plen; /* Prompt length. */
- size_t pos; /* Current cursor position. */
- size_t oldpos; /* Previous refresh cursor position. */
- size_t len; /* Current edited line length. */
- size_t cols; /* Number of columns in terminal. */
+ char * prompt; /* Prompt to display. */
+ char * buf; /* Edited line buffer. */
+ size_t buflen; /* Edited line buffer size. */
+ size_t plen; /* Prompt length. */
+ size_t pos; /* Current cursor position. */
+ size_t oldpos; /* Previous refresh cursor position. */
+ size_t len; /* Current edited line length. */
+ size_t cols; /* Number of columns in terminal. */
};
struct abuf {
char * b;
- int len;
+ int len;
};
static void disableRawMode(void) {
- if (rawmode && tcsetattr(STDIN_FILENO,TCSAFLUSH,&orig) != -1) {
+ if (rawmode && tcsetattr(STDIN_FILENO,TCSAFLUSH,&orig) != -1)
rawmode = 0;
- }
}
static int enableRawMode(int fd) {
- struct termios raw;
-
- if (!isatty(STDIN_FILENO)) goto fatal;
+ if (!isatty(STDIN_FILENO))
+ goto fatal;
if (!atexit_registered) {
atexit(disableRawMode);
atexit_registered = 1;
}
- if (tcgetattr(fd,&orig) == -1) goto fatal;
+ if (tcgetattr(fd,&orig) == -1)
+ goto fatal;
- raw = orig;
+ struct termios raw = orig;
raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
raw.c_oflag &= ~(OPOST);
raw.c_cflag |= (CS8);
raw.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
raw.c_cc[VMIN] = 1; raw.c_cc[VTIME] = 0;
- if (tcsetattr(fd,TCSAFLUSH,&raw) < 0) goto fatal;
+ if (tcsetattr(fd,TCSAFLUSH,&raw) < 0)
+ goto fatal;
rawmode = 1;
return 0;
@@ -101,18 +101,23 @@ fatal:
}
static int getCursorPosition(int ifd, int ofd) {
- char buf[32];
- int cols, rows;
+ char buf[32];
+ int cols, rows;
unsigned int i = 0;
- if (write(ofd, "\x1b[6n", 4) != 4) return -1;
- while (i < sizeof(buf)-1) {
- if (read(ifd,buf+i,1) != 1) break;
- if (buf[i] == 'R') break;
+ if (write(ofd, "\x1b[6n", 4) != 4)
+ return -1;
+ while (i < sizeof(buf) - 1) {
+ if (read(ifd, buf + i, 1) != 1)
+ break;
+ if (buf[i] == 'R')
+ break;
i++;
}
buf[i] = '\0';
- if (buf[0] != 27 || buf[1] != '[') return -1;
- if (sscanf(buf+2, "%d;%d", &rows, &cols) != 2) return -1;
+ if (buf[0] != 27 || buf[1] != '[')
+ return -1;
+ if (sscanf(buf+2, "%d;%d", &rows, &cols) != 2)
+ return -1;
return cols;
}
@@ -120,16 +125,18 @@ static int getColumns(int ifd, int ofd) {
struct winsize ws;
if (ioctl(1, TIOCGWINSZ, &ws) == -1 || ws.ws_col == 0) {
- int start, cols;
- start = getCursorPosition(ifd, ofd);
- if (start == -1) return 80;
- if (write(ofd,"\x1b[999C",6) != 6) return 80;
- cols = getCursorPosition(ifd, ofd);
- if (cols == -1) return 80;
+ int start = getCursorPosition(ifd, ofd);
+ if (start == -1)
+ return 80;
+ if (write(ofd,"\x1b[999C",6) != 6)
+ return 80;
+ int cols = getCursorPosition(ifd, ofd);
+ if (cols == -1)
+ return 80;
if (cols > start) {
char seq[32];
snprintf(seq, sizeof(seq), "\x1b[%dD", cols - start);
- if (write(ofd, seq, strlen(seq)) == -1) {}
+ if (write(ofd, seq, strnlen(seq, MSG_MAX)) == -1) {}
}
return cols;
} else {
@@ -143,8 +150,9 @@ static void abInit(struct abuf * ab) {
}
static void abAppend(struct abuf * ab, const char * s, int len) {
- char *new = realloc(ab->b, ab->len + len);
- if (new == NULL) return;
+ char * new = realloc(ab->b, ab->len + len);
+ if (new == NULL)
+ return;
memcpy(new + ab->len, s, len);
ab->b = new;
ab->len += len;
@@ -176,6 +184,8 @@ static void refreshLine(struct State * l) {
size_t pos = l->pos;
struct abuf ab;
+ l->cols = getColumns(STDIN_FILENO, STDOUT_FILENO);
+
while (plen + pos >= l->cols) {
buf++;
len--;
@@ -208,7 +218,8 @@ static int editInsert(struct State * l, char c) {
l->buf[l->len] = '\0';
if (l->plen + l->len < l->cols) {
char d = c;
- if (write(STDOUT_FILENO, &d, 1) == -1) return -1;
+ if (write(STDOUT_FILENO, &d, 1) == -1)
+ return -1;
} else {
refreshLine(l);
}
@@ -273,97 +284,95 @@ static void editBackspace(struct State * l) {
static void editDeletePrevWord(struct State * l) {
size_t old_pos = l->pos;
- size_t diff;
- while (l->pos > 0 && l->buf[l->pos - 1] == ' ') l->pos--;
- while (l->pos > 0 && l->buf[l->pos - 1] != ' ') l->pos--;
+ while (l->pos > 0 && l->buf[l->pos - 1] == ' ')
+ l->pos--;
+ while (l->pos > 0 && l->buf[l->pos - 1] != ' ')
+ l->pos--;
- diff = old_pos - l->pos;
+ size_t diff = old_pos - l->pos;
memmove(l->buf+l->pos,l->buf+old_pos,l->len-old_pos+1);
l->len -= diff;
refreshLine(l);
}
-static void editDeleteWholeLine(struct State * l, char * buf) {
- buf[0] = '\0';
+static void editDeleteWholeLine(struct State * l) {
+ l->buf[0] = '\0';
l->pos = l->len = 0;
refreshLine(l);
}
-static void editDeleteLineToEnd(struct State * l, char * buf) {
- buf[l->pos] = '\0';
+static void editDeleteLineToEnd(struct State * l) {
+ l->buf[l->pos] = '\0';
l->len = l->pos;
refreshLine(l);
}
-static void editSwapCharWithPrev(struct State * l, char * buf) {
+static void editSwapCharWithPrev(struct State * l) {
if (l->pos > 0 && l->pos < l->len) {
- int aux = buf[l->pos - 1];
- buf[l->pos - 1] = buf[l->pos];
- buf[l->pos] = aux;
- if (l->pos != l->len - 1) {
+ int aux = l->buf[l->pos - 1];
+ l->buf[l->pos - 1] = l->buf[l->pos];
+ l->buf[l->pos] = aux;
+ if (l->pos != l->len - 1)
l->pos++;
- }
refreshLine(l);
}
}
static int edit(struct State * l) {
- char c;
- int nread;
- char seq[3];
+ char c, seq[3];
+ ssize_t nread = read(STDIN_FILENO, &c, 1);
- nread = read(STDIN_FILENO, &c ,1);
- if (nread <= 0) return 1;
+ if (nread <= 0)
+ return 1;
switch(c) {
- case 13: return 1; /* enter */
- case 3: errno = EAGAIN; return -1; /* ctrl-c */
- case 127: /* backspace */
- case 8: editBackspace(l); break; /* ctrl-h */
- case 2: editMoveLeft(l); break; /* ctrl-b */
- case 6: editMoveRight(l); break; /* ctrl-f */
- case 1: editMoveHome(l); break; /* Ctrl+a */
- case 5: editMoveEnd(l); break; /* ctrl+e */
- case 23: editDeletePrevWord(l); break; /* ctrl+w */
- case 21: editDeleteWholeLine(l, l->buf); break; /* Ctrl+u */
- case 11: editDeleteLineToEnd(l, l->buf); break; /* Ctrl+k */
- case 20: editSwapCharWithPrev(l, l->buf); break; /* ctrl-t */
- case 4: /* ctrl-d, remove char at right of cursor, or if the
- line is empty, act as end-of-file. */
- if (l->len > 0) {
- editDelete(l);
- } else {
- return -1;
- }
- break;
- case 27: /* escape sequence */
- if (read(STDIN_FILENO, seq, 1) == -1) break;
- if (read(STDIN_FILENO, seq + 1, 1) == -1) break;
- if (seq[0] == '[') { /* ESC [ sequences. */
- if (seq[1] >= '0' && seq[1] <= '9') {
- /* Extended escape, read additional byte. */
- if (read(STDIN_FILENO, seq + 2, 1) == -1) break;
- if (seq[2] == '~') {
- if (seq[1] == 3) editDelete(l); /* Delete key. */
- }
- } else {
- switch(seq[1]) {
- case 'C': editMoveRight(l); break; /* Right */
- case 'D': editMoveLeft(l); break; /* Left */
- case 'H': editMoveHome(l); break; /* Home */
- case 'F': editMoveEnd(l); break; /* End*/
- }
+ case 13: return 1; /* enter */
+ case 3: errno = EAGAIN; return -1; /* ctrl-c */
+ case 127: /* backspace */
+ case 8: editBackspace(l); break; /* ctrl-h */
+ case 2: editMoveLeft(l); break; /* ctrl-b */
+ case 6: editMoveRight(l); break; /* ctrl-f */
+ case 1: editMoveHome(l); break; /* Ctrl+a */
+ case 5: editMoveEnd(l); break; /* ctrl+e */
+ case 23: editDeletePrevWord(l); break; /* ctrl+w */
+ case 21: editDeleteWholeLine(l); break; /* Ctrl+u */
+ case 11: editDeleteLineToEnd(l); break; /* Ctrl+k */
+ case 20: editSwapCharWithPrev(l); break; /* ctrl-t */
+ case 4: /* ctrl-d */
+ if (l->len > 0) {
+ editDelete(l);
+ } else {
+ return -1;
+ }
+ break;
+ case 27: /* escape sequence */
+ if (read(STDIN_FILENO, seq, 1) == -1) break;
+ if (read(STDIN_FILENO, seq + 1, 1) == -1) break;
+ if (seq[0] == '[') { /* ESC [ sequences. */
+ if (seq[1] >= '0' && seq[1] <= '9') {
+ /* Extended escape, read additional byte. */
+ if (read(STDIN_FILENO, seq + 2, 1) == -1) break;
+ if (seq[2] == '~') {
+ if (seq[1] == 3) editDelete(l); /* Delete key. */
}
- }
- else if (seq[0] == 'O') { /* ESC O sequences. */
+ } else {
switch(seq[1]) {
- case 'H': editMoveHome(l); break; /* Home */
- case 'F': editMoveEnd(l); break; /* End*/
+ case 'C': editMoveRight(l); break; /* Right */
+ case 'D': editMoveLeft(l); break; /* Left */
+ case 'H': editMoveHome(l); break; /* Home */
+ case 'F': editMoveEnd(l); break; /* End*/
}
}
- break;
- default: if (editInsert(l, c)) return -1; break;
+ }
+ else if (seq[0] == 'O') { /* ESC O sequences. */
+ switch(seq[1]) {
+ case 'H': editMoveHome(l); break; /* Home */
+ case 'F': editMoveEnd(l); break; /* End*/
+ }
+ }
+ break;
+ default: if (editInsert(l, c)) return -1; break;
}
return 0;
}
@@ -495,8 +504,8 @@ static void paramPrintJoin(struct Param * p) {
static char * ctime_now (char buf[26]) {
struct tm tm_;
- time_t now = time (NULL);
- if (!asctime_r (localtime_r (&now, &tm_), buf))
+ time_t now = time(NULL);
+ if (!asctime_r(localtime_r (&now, &tm_), buf))
return NULL;
*strchr(buf, '\n') = '\0';
return buf;
@@ -604,8 +613,8 @@ static size_t message_end = 0;
static int handleServerMessage(void) {
for (;;) {
- ssize_t sl = read(conn, &message_buffer[message_end], MSG_MAX - message_end);
- if (sl == -1) {
+ ssize_t nread = read(conn, &message_buffer[message_end], MSG_MAX - message_end);
+ if (nread == -1) {
if (errno == EAGAIN || errno == EWOULDBLOCK) {
return 0;
} else {
@@ -613,14 +622,14 @@ static int handleServerMessage(void) {
return -2;
}
}
- if (sl == 0) {
+ if (nread == 0) {
fputs("\rconnection closed", stderr);
puts("\r\x1b[E");
return -1;
}
size_t i, old_message_end = message_end;
- message_end += sl;
+ message_end += nread;
for (i = old_message_end; i < message_end; ++i) {
if (i != 0 && message_buffer[i - 1] == '\r' && message_buffer[i] == '\n') {
@@ -638,38 +647,38 @@ static int handleServerMessage(void) {
}
}
-static void handleUserInput(char * usrin) {
- if (usrin == NULL)
+static void handleUserInput(struct State * l) {
+ if (l->buf == NULL)
return;
char * tok;
- size_t msg_len = strnlen(usrin, MSG_MAX);
+ size_t msg_len = strnlen(l->buf, MSG_MAX);
- if (msg_len > 0 && usrin[msg_len - 1] == '\n')
- usrin[msg_len - 1] = '\0';
+ if (msg_len > 0 && l->buf[msg_len - 1] == '\n')
+ l->buf[msg_len - 1] = '\0';
printf("\r\x1b[0K");
- switch (usrin[0]) {
- case '/' : /* send system command */
- if (usrin[1] == '#') {
- strcpy(cdef, usrin + 2);
- printf("\x1b[35mnew channel: #%s\x1b[0m\r\n", cdef);
- } else {
- raw("%s\r\n", usrin + 1);
- printf("\x1b[35m%s\x1b[0m\r\n", usrin);
- }
- break;
- case '@' : /* send private message to target channel or user */
- strtok_r(usrin, " ", &tok);
- if (usrin[1] == '@') {
- raw("privmsg %s :\001ACTION %s\001\r\n", usrin + 2, tok);
- printf("\x1b[35mprivmsg %s :ACTION %s\x1b[0m\r\n", usrin + 2, tok);
- } else {
- raw("privmsg %s :%s\r\n", usrin + 1, tok);
- printf("\x1b[35mprivmsg %s :%s\x1b[0m\r\n", usrin + 1, tok);
- } break;
- default : /* send private message to default channel */
- raw("privmsg #%s :%s\r\n", cdef, usrin);
- printf("\x1b[35mprivmsg #%s :%s\x1b[0m\r\n", cdef, usrin);
+ switch (l->buf[0]) {
+ case '/' : /* send system command */
+ if (l->buf[1] == '#') {
+ strcpy(cdef, l->buf + 2);
+ printf("\x1b[35mnew channel: #%s\x1b[0m\r\n", cdef);
+ } else {
+ raw("%s\r\n", l->buf + 1);
+ printf("\x1b[35m%s\x1b[0m\r\n", l->buf);
+ }
+ break;
+ case '@' : /* send private message to target channel or user */
+ strtok_r(l->buf, " ", &tok);
+ if (l->buf[1] == '@') {
+ raw("privmsg %s :\001ACTION %s\001\r\n", l->buf + 2, tok);
+ printf("\x1b[35mprivmsg %s :ACTION %s\x1b[0m\r\n", l->buf + 2, tok);
+ } else {
+ raw("privmsg %s :%s\r\n", l->buf + 1, tok);
+ printf("\x1b[35mprivmsg %s :%s\x1b[0m\r\n", l->buf + 1, tok);
+ } break;
+ default : /* send private message to default channel */
+ raw("privmsg #%s :%s\r\n", cdef, l->buf);
+ printf("\x1b[35mprivmsg #%s :%s\x1b[0m\r\n", cdef, l->buf);
}
}
@@ -689,20 +698,20 @@ int main(int argc, char **argv) {
while ((cval = getopt(argc, argv, "s:p:o:n:k:c:u:r:x:a:evV")) != -1) {
switch (cval) {
- case 'v' : version(); break;
- case 'V' : ++verb; break;
- case 'e' : ++sasl; break;
- case 's' : host = optarg; break;
- case 'p' : port = optarg; break;
- case 'r' : real = optarg; break;
- case 'u' : user = optarg; break;
- case 'a' : auth = optarg; break;
- case 'o' : olog = optarg; break;
- case 'n' : nick = optarg; break;
- case 'k' : pass = optarg; break;
- case 'c' : chan = optarg; break;
- case 'x' : inic = optarg; break;
- case '?' : usage(); break;
+ case 'v' : version(); break;
+ case 'V' : ++verb; break;
+ case 'e' : ++sasl; break;
+ case 's' : host = optarg; break;
+ case 'p' : port = optarg; break;
+ case 'r' : real = optarg; break;
+ case 'u' : user = optarg; break;
+ case 'a' : auth = optarg; break;
+ case 'o' : olog = optarg; break;
+ case 'n' : nick = optarg; break;
+ case 'k' : pass = optarg; break;
+ case 'c' : chan = optarg; break;
+ case 'x' : inic = optarg; break;
+ case '?' : usage(); break;
}
}
@@ -736,23 +745,21 @@ int main(int argc, char **argv) {
char usrin[MSG_MAX];
struct State l;
-
l.buf = usrin;
l.buflen = MSG_MAX;
l.prompt = cdef;
stateReset(&l);
- int editReturnFlag = 0;
+ int rc, editReturnFlag = 0;
- if (enableRawMode(STDIN_FILENO) == -1) return -1;
+ if (enableRawMode(STDIN_FILENO) == -1)
+ return 1;
for (;;) {
- int poll_res = poll(fds, 2, -1);
- if (poll_res != -1) {
+ if (poll(fds, 2, -1) != -1) {
if (fds[0].revents & POLLIN) {
- l.cols = getColumns(STDIN_FILENO, STDOUT_FILENO);
editReturnFlag = edit(&l);
if (editReturnFlag > 0) {
- handleUserInput(l.buf);
+ handleUserInput(&l);
stateReset(&l);
} else if (editReturnFlag < 0) {
printf("\r\n");
@@ -761,8 +768,7 @@ int main(int argc, char **argv) {
refreshLine(&l);
}
if (fds[1].revents & POLLIN) {
- l.cols = getColumns(STDIN_FILENO, STDOUT_FILENO);
- int rc = handleServerMessage();
+ rc = handleServerMessage();
if (rc != 0) {
if (rc == -2)
return 1;
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