Introduction
Introduction Statistics Contact Development Disclaimer Help
initial version - sob - simple output bar
git clone git://git.codemadness.org/sob
Log
Files
Refs
README
LICENSE
---
commit 99d263504572720db6a3a78f1d1b7e0b50060ca7
Author: Hiltjo Posthuma <[email protected]>
Date: Wed, 1 Oct 2014 22:45:24 +0000
initial version
Diffstat:
A .gitignore | 3 +++
A LICENSE | 21 +++++++++++++++++++++
A Makefile | 48 +++++++++++++++++++++++++++++…
A README | 25 +++++++++++++++++++++++++
A TODO | 20 ++++++++++++++++++++
A arg.h | 63 +++++++++++++++++++++++++++++…
A config.def.h | 43 ++++++++++++++++++++++++++++++
A config.mk | 25 +++++++++++++++++++++++++
A scripts/complete_word | 21 +++++++++++++++++++++
A scripts/history | 18 ++++++++++++++++++
A sob.1 | 33 +++++++++++++++++++++++++++++…
A sob.c | 593 +++++++++++++++++++++++++++++…
A strlcpy.c | 47 +++++++++++++++++++++++++++++…
A util.h | 5 +++++
14 files changed, 965 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,3 @@
+sob
+*.o
+core
diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,21 @@
+MIT/X Consortium License
+
+(c) 2014 Hiltjo Posthuma <[email protected]>
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/Makefile b/Makefile
@@ -0,0 +1,48 @@
+include config.mk
+
+SRC = sob.c strlcpy.c
+HDR = arg.h config.def.h util.h
+OBJ = ${SRC:.c=.o}
+
+all: options sob
+
+options:
+ @echo sob build options:
+ @echo "CFLAGS = ${CFLAGS}"
+ @echo "LDFLAGS = ${LDFLAGS}"
+ @echo "CC = ${CC}"
+
+.c.o:
+ @echo CC $<
+ @${CC} -c ${CFLAGS} $<
+
+${OBJ}: config.mk config.h
+
+config.h:
+ @echo creating $@ from config.def.h
+ @cp config.def.h $@
+
+sob: ${OBJ}
+ @echo CC -o $@
+ @${CC} -o $@ ${OBJ} ${LDFLAGS}
+
+clean:
+ @echo cleaning
+ @rm -f sob ${OBJ}
+
+install: all
+ @echo installing executable file to ${DESTDIR}${PREFIX}/bin
+ @mkdir -p ${DESTDIR}${PREFIX}/bin
+ @cp -f sob ${DESTDIR}${PREFIX}/bin
+ @chmod 755 ${DESTDIR}${PREFIX}/bin/sob
+ @echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
+ @mkdir -p ${DESTDIR}${MANPREFIX}/man1
+ @sed "s/VERSION/${VERSION}/g" < sob.1 > ${DESTDIR}${MANPREFIX}/man1/so…
+
+uninstall:
+ @echo removing executable file from ${DESTDIR}${PREFIX}/bin
+ @rm -f ${DESTDIR}${PREFIX}/bin/sob
+ @echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
+ @rm -f ${DESTDIR}${MANPREFIX}/man1/sob.1
+
+.PHONY: all options clean dist install uninstall
diff --git a/README b/README
@@ -0,0 +1,25 @@
+Simple output bar
+=================
+
+
+Dependencies
+------------
+- Ncurses (at the moment, alternatives will be investigated).
+- libc
+
+
+Features
+--------
+- Custom prompt.
+- Easy to write scripts to pipe input/output.
+- Custom action on SIGWINCH (window resize).
+- Familiar and customizable keybinds (in config.h).
+- Example scripts for:
+ - Word completion.
+ - History
+ - Yank line (xsel).
+
+
+License
+-------
+See LICENSE file.
diff --git a/TODO b/TODO
@@ -0,0 +1,20 @@
+13:32 <@TLH> Evil_Bob: please support C-p for up in history C-n for down in hi…
+ C-e, C-u, C-k (kill to rest of line), C-y, C-w
+ 13:32 <@TLH> what else
+ 13:32 <@TLH> C-j
+ 13:32 <@TLH> :P
+ 13:33 <@TLH> C-m as an alias to C-j
+
+- test draw on wrapped lines.
+
+- line_yank doesn't work with xclip, but works with xsel...
+
+- optimize:
+ reduce redraws (line_redraw and line_cursor_update).
+
+- selections / marks? (delete/pipe etc on selection)?
+- cycle completions? (with tab for example).
+- keybind to go to word next and previous (ctrl+arrow left/right).
+- prompt callback? allow to update prompt?
+
+- try libedit, else just use ncurses.
diff --git a/arg.h b/arg.h
@@ -0,0 +1,63 @@
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef ARG_H__
+#define ARG_H__
+
+extern char *argv0;
+
+/* use main(int argc, char *argv[]) */
+#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
+ argv[0] && argv[0][1]\
+ && argv[0][0] == '-';\
+ argc--, argv++) {\
+ char argc_;\
+ char **argv_;\
+ int brk_;\
+ if (argv[0][1] == '-' && argv[0][2] == '\0') {\
+ argv++;\
+ argc--;\
+ break;\
+ }\
+ for (brk_ = 0, argv[0]++, argv_ = argv;\
+ argv[0][0] && !brk_;\
+ argv[0]++) {\
+ if (argv_ != argv)\
+ break;\
+ argc_ = argv[0][0];\
+ switch (argc_)
+
+/* Handles obsolete -NUM syntax */
+#define ARGNUM case '0':\
+ case '1':\
+ case '2':\
+ case '3':\
+ case '4':\
+ case '5':\
+ case '6':\
+ case '7':\
+ case '8':\
+ case '9'
+
+#define ARGEND }\
+ }
+
+#define ARGC() argc_
+
+#define ARGNUMF(base) (brk_ = 1, estrtol(argv[0], (base)))
+
+#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
+ ((x), abort(), (char *)0) :\
+ (brk_ = 1, (argv[0][1] != '\0')?\
+ (&argv[0][1]) :\
+ (argc--, argv++, argv[0])))
+
+#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
+ (char *)0 :\
+ (brk_ = 1, (argv[0][1] != '\0')?\
+ (&argv[0][1]) :\
+ (argc--, argv++, argv[0])))
+
+#endif
diff --git a/config.def.h b/config.def.h
@@ -0,0 +1,43 @@
+static const char *prompt = "> ";
+static char id[256] = "";
+static const char *completewordcmd[] = { "./scripts/complete_word", id, NULL };
+static const char *historycmd[] = { "./scripts/history", id, NULL };
+static const char *yankcmd[] = { "/bin/sh", "-c", "/bin/xsel -i -p", N…
+static const char *resizecmd = "tmux resize-pane -y 4 2> /dev/null";
+
+static struct keybind {
+ int key;
+ void (*func)(void);
+} keybinds[] = {
+ { CONTROL('T'), line_delwordcursor },
+ { CONTROL('A'), line_cursor_begin },
+ { CONTROL('E'), line_cursor_end },
+ { KEY_HOME, line_cursor_begin },
+ { KEY_END, line_cursor_end },
+ { CONTROL('B'), line_cursor_prev },
+ { KEY_LEFT, line_cursor_prev },
+ { CONTROL('F'), line_cursor_next },
+ { KEY_RIGHT, line_cursor_next },
+ { CONTROL('W'), line_delwordback },
+ { CONTROL('H'), line_delcharback },
+ { CONTROL('U'), line_clear },
+ { KEY_DL, line_clear },
+ { CONTROL('K'), line_deltoend },
+ { KEY_SDC, line_delcharnext },
+ { KEY_DC, line_delcharnext },
+ { KEY_BACKSPACE, line_delcharback },
+ { CONTROL('M'), line_newline },
+ { CONTROL('J'), line_newline },
+ { '\r', line_newline },
+ { '\n', line_newline },
+ { KEY_ENTER, line_newline },
+ { CONTROL('Y'), line_yank },
+ { KEY_EXIT, line_exit },
+ { 0x04, line_exit }, /* EOT */
+ { KEY_EOL, line_deltoend },
+ { KEY_UP, history_menu },
+ { KEY_DOWN, history_menu },
+ { CONTROL('P'), history_menu },
+ { CONTROL('N'), history_menu },
+ { '\t', complete_word },
+};
diff --git a/config.mk b/config.mk
@@ -0,0 +1,25 @@
+VERSION = 0.1
+
+# Customize below to fit your system
+
+# paths
+PREFIX = /usr/local
+MANPREFIX = ${PREFIX}/share/man
+
+# includes and libs
+INCS = -I. -I/usr/include
+LIBS = -L/usr/lib -lc -lncurses
+
+# flags
+CPPFLAGS = -DVERSION=\"${VERSION}\" -D_POSIX_C_SOURCE=200809 -D_BSD_SOURCE
+
+# debug
+#CFLAGS = -g -std=c99 -pedantic -Wall -O0 ${INCS} ${CPPFLAGS}
+#LDFLAGS = ${LIBS}
+
+# release
+CFLAGS = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
+LDFLAGS = -s ${LIBS}
+
+# compiler and linker
+CC = cc
diff --git a/scripts/complete_word b/scripts/complete_word
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+grepword() {
+ grep -E "^$1" < out.log
+}
+
+id=""
+test x"$1" != x"" && id="$1"
+read -r word
+
+#if test x"$DISPLAY" = x""; then
+# line=$(grepword "$word" | sort | uniq | slmenu -l 20)
+#else
+# line=$(grepword "$word" | sort | uniq | dmenu -l 20)
+#fi
+
+line=$(grepword "$word" | sort | uniq | dmenu -l 20)
+
+if test x"$line" != x""; then
+ printf '%s\n' "$line"
+fi
diff --git a/scripts/history b/scripts/history
@@ -0,0 +1,18 @@
+#!/bin/sh
+id=""
+test x"$1" != x"" && id="$1"
+file="out.log"
+
+test -f "$file" || exit 1
+
+#if test x"$DISPLAY" = x""; then
+# line=$(tail -n 100 "$file" | slmenu -l 20)
+#else
+# line=$(tail -n 100 "$file" | dmenu -l 20)
+#fi
+
+line=$(tail -n 100 "$file" | dmenu -l 20)
+
+if test x"$line" != x""; then
+ printf '%s\n' "$line"
+fi
diff --git a/sob.1 b/sob.1
@@ -0,0 +1,33 @@
+.TH SOB 1 sob\-VERSION
+.SH NAME
+sob \- simple output bar
+.SH SYNOPSIS
+.B sob
+.RB < \-f
+.IR outfile >
+.RB [ \-l
+.IR line ]
+.RB [ \-p
+.IR prompt ]
+.RB [ \-r
+.IR resizecmd ]
+.SH DESCRIPTION
+sob is a simple line editor.
+.SH OPTIONS
+.TP
+.B \-f " outfile"
+output file.
+.TP
+.B \-i " id"
+extra parameter passed to program.
+.TP
+.B \-l " line"
+initial input on line.
+.TP
+.B \-p " prompt"
+prompt string.
+.TP
+.B \-r " resizecmd"
+command to run on SIGWINCH (ncurses KEY_RESIZE).
+.SH BUGS
+Please report them!
diff --git a/sob.c b/sob.c
@@ -0,0 +1,593 @@
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <locale.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/select.h>
+#include <unistd.h>
+
+#include <ncurses.h>
+
+#include "arg.h"
+char *argv0;
+
+#include "util.h"
+
+#define CONTROL(ch) ((ch)^0x40)
+#define LEN(x) (sizeof (x) / sizeof *(x))
+#define MAX(A, B) ((A) > (B) ? (A) : (B))
+
+struct line {
+ char line[BUFSIZ];
+ size_t len;
+ size_t pos;
+};
+
+static struct line line;
+static int isrunning = 1;
+static char * outname = NULL;
+static WINDOW * win = NULL;
+
+static void line_clear(void);
+static void line_copywordcursor(char *buf, size_t bufsiz);
+static void line_cursor_begin(void);
+static void line_cursor_end(void);
+static void line_cursor_next(void);
+static void line_cursor_prev(void);
+static void line_cursor_update(void);
+static void line_delcharback(void);
+static void line_delcharnext(void);
+static void line_deltoend(void);
+static void line_delwordback(void);
+static void line_delwordcursor(void);
+static void line_exit(void);
+static void line_getwordpos(unsigned int *start, unsigned int *end);
+static void line_insertchar(int c);
+static void line_inserttext(const char *s);
+static void line_newline(void);
+static int line_out(void);
+static void line_prompt(void);
+static int line_pipeto(char **cmd);
+static void line_redraw(size_t max);
+static void line_set(const char *s);
+static void line_yank(void);
+static void history_menu(void);
+static void complete_word(void);
+static int pipereadline(int fd_in, int fd_out, char *writestr, char *outbuf,
+ size_t outbufsiz);
+static int pipecmd(char *cmd[], char *writestr, char *outbuf,
+ size_t outbufsiz);
+static void sighandler(int signum);
+static void setup(void);
+static void cleanup(void);
+static void run(void);
+static void usage(void);
+
+#include "config.h"
+
+static void
+line_insertchar(int c)
+{
+ char s[2];
+
+ s[0] = c;
+ s[1] = '\0';
+ line_inserttext(s);
+}
+
+static void
+line_inserttext(const char *s)
+{
+ size_t len;
+
+ len = strlen(s);
+ if(line.pos + len + 1 > sizeof(line.line))
+ return;
+ /* append */
+ if(line.pos == line.len) {
+ memmove(&line.line[line.pos], s, len);
+ } else {
+ /* insert */
+ memmove(&line.line[line.pos + len], &line.line[line.pos], line…
+ memcpy(&line.line[line.pos], s, len);
+ }
+ line.pos += len;
+ line.len += len;
+ line.line[line.len + 1] = '\0';
+}
+
+static void
+line_set(const char *s) {
+ strlcpy(line.line, s, sizeof(line.line));
+ line.len = strlen(line.line);
+ line.pos = line.len;
+}
+
+static void
+line_prompt(void)
+{
+ size_t i;
+
+ wmove(win, 0, 0);
+ for(i = 0; prompt[i]; i++)
+ waddch(win, prompt[i]);
+}
+
+static void
+line_redraw(size_t max)
+{
+ size_t n;
+
+ line_prompt();
+
+ for(n = 0; line.line[n] && n < line.len && n < max; n++)
+ waddch(win, line.line[n]);
+ for(; n < max; n++)
+ waddch(win, ' ');
+ wrefresh(win);
+}
+
+static int
+line_out(void)
+{
+ FILE *fp;
+ if(!(fp = fopen(outname, "a"))) {
+ fprintf(stderr, "fopen: '%s': %s\n", outname, strerror(errno));
+ return -1;
+ }
+ fprintf(fp, "%s\n", line.line);
+ fflush(fp);
+ fclose(fp);
+ return 0;
+}
+
+static void
+line_cursor_update(void)
+{
+ wmove(win, 0, line.pos + strlen(prompt));
+}
+
+static void
+line_cursor_begin(void)
+{
+ line.pos = 0;
+ line_cursor_update();
+}
+
+static void
+line_cursor_prev(void)
+{
+ if(line.pos > 0)
+ line.pos--;
+ line_cursor_update();
+}
+
+static void
+line_cursor_next(void)
+{
+ if(line.pos < line.len)
+ line.pos++;
+ line_cursor_update();
+}
+
+static void
+line_cursor_end(void)
+{
+ line.pos = line.len;
+ line_cursor_update();
+}
+
+static void
+line_clear(void)
+{
+ line.line[0] = '\0';
+ line_redraw(line.len);
+ line.len = 0;
+ line_cursor_begin();
+}
+
+static void
+line_delcharnext(void)
+{
+ size_t oldlen = line.len;
+
+ if(line.pos == line.len || line.len <= 0)
+ return;
+
+ memmove(&line.line[line.pos], &line.line[line.pos + 1],
+ line.line[line.len - line.pos - 1]);
+ line.len--;
+ line.line[line.len] = '\0';
+ line_redraw(oldlen);
+ line_cursor_update();
+}
+
+static void
+line_delcharback(void)
+{
+ size_t oldlen = line.len;
+
+ if(line.pos <= 0 || line.len <= 0)
+ return;
+ memmove(&line.line[line.pos - 1], &line.line[line.pos],
+ line.line[line.len - line.pos]);
+ line.len--;
+ line.line[line.len] = '\0';
+ line_redraw(oldlen);
+ line_cursor_prev();
+}
+
+static void
+line_deltoend(void)
+{
+ size_t oldlen = line.len;
+
+ line.line[line.pos] = '\0';
+ line.len = line.pos;
+ line_redraw(oldlen);
+ line_cursor_end();
+}
+
+static void
+line_delwordcursor(void)
+{
+ unsigned int s, e;
+ size_t len, oldlen = line.len;
+
+ line_getwordpos(&s, &e);
+
+ memmove(&line.line[s], &line.line[e], line.len - e);
+ len = e - s;
+ line.len -= len;
+ line.pos = s;
+ line.line[line.len] = '\0';
+ line_redraw(MAX(line.len, oldlen));
+ line_cursor_update();
+}
+
+static void
+line_delwordback(void)
+{
+ size_t i, len, oldlen = line.len;
+
+ if(line.pos <= 0 || line.len <= 0)
+ return;
+
+ i = line.pos;
+ while(i > 0 && isspace(line.line[i - 1]))
+ i--;
+ while(i > 0 && !isspace(line.line[i - 1]))
+ i--;
+
+ len = line.len - line.pos;
+ if(len > 0)
+ memmove(&line.line[i], &line.line[line.pos],
+ line.len - line.pos);
+ len = line.pos - i;
+ line.pos = i;
+ line.len -= len;
+ line.line[line.len] = '\0';
+ line_redraw(oldlen);
+ line_cursor_update();
+}
+
+static void
+line_newline(void)
+{
+ line_out();
+ line_clear();
+ line_prompt();
+ wrefresh(win);
+}
+
+static void
+line_exit(void)
+{
+ line_newline();
+ isrunning = 0;
+}
+
+static void
+line_getwordpos(unsigned int *start, unsigned int *end)
+{
+ size_t i;
+
+ i = line.pos;
+ while(i > 0 && !isspace(line.line[i - 1]))
+ i--;
+ if(start)
+ *start = i;
+ i = line.pos;
+ while(line.line[i] && i < line.len && !isspace(line.line[i]))
+ i++;
+ if(end)
+ *end = i;
+}
+
+static void
+line_copywordcursor(char *buf, size_t bufsiz)
+{
+ unsigned int s, e;
+ size_t len;
+
+ line_getwordpos(&s, &e);
+ len = e - s;
+ /* truncate */
+ if(len + 1 > bufsiz)
+ len = bufsiz - 1;
+ memcpy(buf, &line.line[s], len);
+ buf[len + 1] = '\0';
+}
+
+static void
+complete_word(void)
+{
+ char wordbuf[BUFSIZ], outbuf[BUFSIZ];
+ size_t oldlen = line.len;
+
+ outbuf[0] = '\0';
+ line_copywordcursor(wordbuf, sizeof(wordbuf));
+
+ if(pipecmd((char**)completewordcmd, wordbuf, outbuf,
+ sizeof(outbuf)) == -1)
+ return;
+ if(outbuf[0] == '\0')
+ return;
+
+ line_delwordcursor();
+ line_inserttext(outbuf);
+ line_redraw(MAX(line.len, oldlen));
+ line_cursor_update();
+}
+
+static void
+line_yank(void)
+{
+ line_pipeto((char**)yankcmd);
+}
+
+static void
+history_menu(void)
+{
+ line_pipeto((char**)historycmd);
+}
+
+static int
+pipereadline(int fd_in, int fd_out, char *writestr, char *outbuf,
+ size_t outbufsiz)
+{
+ char buf[PIPE_BUF], *p;
+ struct timeval tv;
+ fd_set fdr, fdw;
+ int r, w, maxfd, status = -1, haswritten = 0;
+
+ for(;;) {
+ FD_ZERO(&fdr);
+ FD_ZERO(&fdw);
+ if(haswritten) {
+ FD_SET(fd_in, &fdr);
+ maxfd = fd_in;
+ } else {
+ FD_SET(fd_out, &fdw);
+ maxfd = fd_out;
+ }
+ memset(&tv, 0, sizeof(tv));
+ tv.tv_sec = 0;
+ tv.tv_usec = 200;
+
+ if((r = select(maxfd + 1, haswritten ? &fdr : NULL,
+ haswritten ? NULL : &fdw, NULL, &tv)) == -1)
+ goto fini;
+ else if(!r) /* timeout */
+ continue;
+
+ if(haswritten) {
+ if(FD_ISSET(fd_in, &fdr)) {
+ /* read until newline */
+ if((r = read(fd_in, buf, sizeof(buf))) == -1)
+ goto fini;
+ buf[r] = '\0';
+ if((p = strpbrk(buf, "\r\n")))
+ *p = '\0';
+ strlcpy(outbuf, buf, sizeof(outbuf));
+ status = 0;
+ goto fini;
+ }
+ } else {
+ if(FD_ISSET(fd_out, &fdw)) {
+ /* write error */
+ if((w = write(fd_out, writestr, strlen(writest…
+ goto fini;
+ close(fd_out); /* sends EOF */
+ haswritten = 1;
+ }
+ }
+ }
+fini:
+ close(fd_in);
+ close(fd_out);
+ return status;
+}
+
+static int
+pipecmd(char *cmd[], char *writestr, char *outbuf, size_t outbufsiz)
+{
+ struct sigaction sa;
+ pid_t pid;
+ int pc[2], cp[2];
+
+ if ((pipe(pc) == -1) || (pipe(cp) == -1)) {
+ perror("pipe");
+ return -1;
+ }
+ pid = fork();
+ if (pid == -1) {
+ perror("fork");
+ return -1;
+ } else if (pid == 0) {
+ /* child */
+ close(cp[0]);
+ close(pc[1]);
+ if (dup2(pc[0], STDIN_FILENO) == -1 ||
+ dup2(cp[1], STDOUT_FILENO) == -1) {
+ perror("dup2");
+ return -1;
+ }
+ if(execv(cmd[0], (char**)cmd) == -1) {
+ perror("execv");
+ _exit(EXIT_FAILURE); /* NOTE: must be _exit */
+ }
+ _exit(EXIT_SUCCESS);
+ } else {
+ /* parent */
+ close(pc[0]);
+ close(cp[1]);
+
+ /* ignore SIGPIPE, we handle this for write(). */
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_flags = SA_RESTART;
+ sa.sa_handler = SIG_IGN;
+ sigaction(SIGPIPE, &sa, NULL);
+
+ if(pipereadline(cp[0], pc[1], writestr, outbuf, outbufsiz) == …
+ return -1;
+ }
+ return 0;
+}
+
+static int
+line_pipeto(char **cmd)
+{
+ size_t oldlen = line.len;
+
+ if(pipecmd(cmd, line.line, line.line, sizeof(line.line)) == -1)
+ return -1;
+ line.len = strlen(line.line);
+ line_redraw(MAX(line.len, oldlen));
+ line_cursor_end();
+ return 0;
+}
+
+static void
+sighandler(int signum)
+{
+ if(signum == SIGTERM) {
+ isrunning = 0;
+ cleanup();
+ }
+}
+
+static void
+setup(void)
+{
+ struct sigaction sa;
+
+ initscr();
+ win = stdscr;
+ cbreak();
+ noecho();
+ nonl();
+ nodelay(win, FALSE);
+ keypad(win, TRUE);
+ curs_set(1);
+ ESCDELAY = 20;
+
+ /* signal handling */
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_flags = SA_RESTART;
+ sa.sa_handler = sighandler;
+ sigaction(SIGTERM, &sa, NULL);
+}
+
+static void
+cleanup(void)
+{
+ endwin();
+}
+
+static void
+run(void)
+{
+ size_t i;
+ int c, ismatch = 0;
+
+ line_redraw(line.len);
+ while(isrunning) {
+ c = wgetch(win);
+ switch(c) {
+ case ERR:
+ isrunning = 0;
+ break;
+ case 0x1b: /* ignore unbinded escape sequences */
+ nodelay(win, TRUE);
+ while((c = wgetch(win)) != ERR);
+ nodelay(win, FALSE);
+ break;
+ case KEY_RESIZE:
+ if(resizecmd && resizecmd[0])
+ system(resizecmd);
+ break;
+ default:
+ ismatch = 0;
+ for(i = 0; i < LEN(keybinds); i++) {
+ if(keybinds[i].key == c) {
+ ismatch = 1;
+ keybinds[i].func();
+ break;
+ }
+ }
+ if(!ismatch) {
+ line_insertchar(c);
+ line_redraw(line.len);
+ line_cursor_update();
+ wrefresh(win);
+ }
+ }
+ }
+}
+
+static void
+usage(void)
+{
+ fprintf(stderr, "usage: %s <-f outfile> [-i id] [-l line] [-p prompt] "
+ "[-r resizecmd]\n", argv0);
+ exit(EXIT_FAILURE);
+}
+
+int
+main(int argc, char **argv)
+{
+ ARGBEGIN {
+ case 'f':
+ outname = EARGF(usage());
+ break;
+ case 'i':
+ strlcpy(id, EARGF(usage()), sizeof(id));
+ break;
+ case 'l':
+ line_set(EARGF(usage()));
+ break;
+ case 'p':
+ prompt = EARGF(usage());
+ break;
+ case 'r':
+ resizecmd = EARGF(usage());
+ break;
+ default:
+ usage();
+ } ARGEND;
+
+ if(!outname)
+ usage();
+
+ setlocale(LC_ALL, "");
+ setup();
+ run();
+ cleanup();
+
+ return EXIT_SUCCESS;
+}
diff --git a/strlcpy.c b/strlcpy.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 1998 Todd C. Miller <[email protected]>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+#include "util.h"
+
+/*
+ * Copy src to string dst of size siz. At most siz-1 characters
+ * will be copied. Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+ char *d = dst;
+ const char *s = src;
+ size_t n = siz;
+ /* Copy as many bytes as will fit */
+ if (n != 0) {
+ while (--n != 0) {
+ if ((*d++ = *s++) == '\0')
+ break;
+ }
+ }
+ /* Not enough room in dst, add NUL and traverse rest of src */
+ if (n == 0) {
+ if (siz != 0)
+ *d = '\0'; /* NUL-terminate dst */
+ while (*s++)
+ ;
+ }
+ return(s - src - 1); /* count does not include NUL */
+}
diff --git a/util.h b/util.h
@@ -0,0 +1,5 @@
+#include <stdio.h>
+#include <unistd.h>
+
+#undef strlcpy
+size_t strlcpy(char *dst, const char *src, size_t siz);
You are viewing proxied material from codemadness.org. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.