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Christoph Lohmann  committed 6700077

Initial commit of dwmstatus 1.2.

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+MIT/X Consortium License
+
+© 2011-12 Christoph Lohmann <20h@r-36.net>
+
+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.
+# See LICENSE file for copyright and license details.
+
+include config.mk
+
+SRC = ${NAME}.c
+OBJ = ${SRC:.c=.o}
+
+all: options ${NAME}
+
+options:
+	@echo ${NAME} build options:
+	@echo "CFLAGS   = ${CFLAGS}"
+	@echo "LDFLAGS  = ${LDFLAGS}"
+	@echo "CC       = ${CC}"
+
+.c.o:
+	@echo CC $<
+	@${CC} -c ${CFLAGS} $<
+
+${OBJ}: config.mk
+
+${NAME}: ${OBJ}
+	@echo CC -o $@
+	@${CC} -o $@ ${OBJ} ${LDFLAGS}
+
+clean:
+	@echo cleaning
+	@rm -f ${NAME} ${OBJ} ${NAME}-${VERSION}.tar.gz
+
+dist: clean
+	@echo creating dist tarball
+	@mkdir -p ${NAME}-${VERSION}
+	@cp -R Makefile config.mk LICENSE \
+		${SRC} ${NAME}-${VERSION}
+	@tar -cf ${NAME}-${VERSION}.tar ${NAME}-${VERSION}
+	@gzip ${NAME}-${VERSION}.tar
+	@rm -rf ${NAME}-${VERSION}
+
+install: all
+	@echo installing executable file to ${DESTDIR}${PREFIX}/bin
+	@mkdir -p ${DESTDIR}${PREFIX}/bin
+	@cp -f ${NAME} ${DESTDIR}${PREFIX}/bin
+	@chmod 755 ${DESTDIR}${PREFIX}/bin/${NAME}
+
+uninstall:
+	@echo removing executable file from ${DESTDIR}${PREFIX}/bin
+	@rm -f ${DESTDIR}${PREFIX}/bin/${NAME}
+
+.PHONY: all options clean dist install uninstall
+NAME = dwmstatus
+VERSION = 1.2
+
+# Customize below to fit your system
+
+# paths
+PREFIX = /usr/local
+MANPREFIX = ${PREFIX}/share/man
+
+X11INC = /usr/X11R6/include
+X11LIB = /usr/X11R6/lib
+
+# includes and libs
+INCS = -I. -I/usr/include -I${X11INC}
+LIBS = -L/usr/lib -lc -L${X11LIB} -lX11
+
+# flags
+CPPFLAGS = -DVERSION=\"${VERSION}\"
+CFLAGS = -g -std=c99 -pedantic -Wall -O0 ${INCS} ${CPPFLAGS}
+#CFLAGS = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
+LDFLAGS = -g ${LIBS}
+#LDFLAGS = -s ${LIBS}
+
+# Solaris
+#CFLAGS = -fast ${INCS} -DVERSION=\"${VERSION}\"
+#LDFLAGS = ${LIBS}
+
+# compiler and linker
+CC = cc
+
+#define _BSD_SOURCE
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <strings.h>
+#include <sys/time.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <X11/Xlib.h>
+
+char *tzargentina = "America/Buenos_Aires";
+char *tzutc = "UTC";
+char *tzberlin = "Europe/Berlin";
+
+static Display *dpy;
+
+char *
+smprintf(char *fmt, ...)
+{
+	va_list fmtargs;
+	char *ret;
+	int len;
+
+	va_start(fmtargs, fmt);
+	len = vsnprintf(NULL, 0, fmt, fmtargs);
+	va_end(fmtargs);
+
+	ret = malloc(++len);
+	if (ret == NULL) {
+		perror("malloc");
+		exit(1);
+	}
+
+	va_start(fmtargs, fmt);
+	vsnprintf(ret, len, fmt, fmtargs);
+	va_end(fmtargs);
+
+	return ret;
+}
+
+void
+settz(char *tzname)
+{
+	setenv("TZ", tzname, 1);
+}
+
+char *
+mktimes(char *fmt, char *tzname)
+{
+	char buf[129];
+	time_t tim;
+	struct tm *timtm;
+
+	bzero(buf, sizeof(buf));
+	settz(tzname);
+	tim = time(NULL);
+	timtm = localtime(&tim);
+	if (timtm == NULL) {
+		perror("localtime");
+		exit(1);
+	}
+
+	if (!strftime(buf, sizeof(buf)-1, fmt, timtm)) {
+		fprintf(stderr, "strftime == 0\n");
+		exit(1);
+	}
+
+	return smprintf("%s", buf);
+}
+
+void
+setstatus(char *str)
+{
+	XStoreName(dpy, DefaultRootWindow(dpy), str);
+	XSync(dpy, False);
+}
+
+char *
+loadavg(void)
+{
+	double avgs[3];
+
+	if (getloadavg(avgs, 3) < 0) {
+		perror("getloadavg");
+		exit(1);
+	}
+
+	return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
+}
+
+int
+main(void)
+{
+	char *status;
+	char *avgs;
+	char *tmar;
+	char *tmutc;
+	char *tmbln;
+
+	if (!(dpy = XOpenDisplay(NULL))) {
+		fprintf(stderr, "dwmstatus: cannot open display.\n");
+		return 1;
+	}
+
+	for (;;sleep(90)) {
+		avgs = loadavg();
+		tmar = mktimes("%H:%M", tzargentina);
+		tmutc = mktimes("%H:%M", tzutc);
+		tmbln = mktimes("KW %W %a %d %b %H:%M %Z %Y", tzberlin);
+
+		status = smprintf("[L: %s|A: %s|U: %s|%s]",
+				avgs, tmar, tmutc, tmbln);
+		setstatus(status);
+		free(avgs);
+		free(tmar);
+		free(tmutc);
+		free(tmbln);
+		free(status);
+	}
+
+	XCloseDisplay(dpy);
+
+	return 0;
+}
+