commit 4efcacb0b566d74ba6f5c64064e67aa24968e36f
Author: Claudio Alessi <smoppy@gmail.com>
Date: Fri, 9 Mar 2018 21:35:11 +0100
init
Diffstat:
| A | Makefile | | | 57 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | README.md | | | 2 | ++ |
| A | arg.h | | | 41 | +++++++++++++++++++++++++++++++++++++++++ |
| A | config.mk | | | 25 | +++++++++++++++++++++++++ |
| A | sw.1 | | | 0 | |
| A | sw.c | | | 251 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
6 files changed, 376 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile
@@ -0,0 +1,57 @@
+# sw - simple wallet
+# See LICENSE file for copyright and license details.
+
+include config.mk
+
+APPNAME=sw
+SRC = ${APPNAME}.c
+OBJ = ${SRC:.c=.o}
+
+all: options ${APPNAME}
+
+options:
+ @echo ${APPNAME} build options:
+ @echo "CFLAGS = ${CFLAGS}"
+ @echo "LDFLAGS = ${LDFLAGS}"
+ @echo "CC = ${CC}"
+
+.c.o:
+ @echo CC $<
+ @${CC} -c ${CFLAGS} $<
+
+${OBJ}: config.mk
+
+${APPNAME}: ${OBJ}
+ @echo CC -o $@
+ @${CC} -o $@ ${OBJ} ${LDFLAGS}
+
+clean:
+ @echo cleaning
+ @rm -f ${APPNAME} ${OBJ} ${APPNAME}-${VERSION}.tar.gz
+
+dist: clean
+ @echo creating dist tarball
+ @mkdir -p ${APPNAME}-${VERSION}
+ @cp -R LICENSE Makefile README config.mk \
+ ${APPNAME}.1 ${SRC} ${APPNAME}-${VERSION}
+ @tar -cf ${APPNAME}-${VERSION}.tar ${APPNAME}-${VERSION}
+ @gzip ${APPNAME}-${VERSION}.tar
+ @rm -rf ${APPNAME}-${VERSION}
+
+install: all
+ @echo installing executable file to ${DESTDIR}${PREFIX}/bin
+ @mkdir -p ${DESTDIR}${PREFIX}/bin
+ @cp -f ${APPNAME} ${DESTDIR}${PREFIX}/bin
+ @chmod 755 ${DESTDIR}${PREFIX}/bin/${APPNAME}
+ @echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
+ @mkdir -p ${DESTDIR}${MANPREFIX}/man1
+ @sed "s/VERSION/${VERSION}/g" < ${APPNAME}.1 > ${DESTDIR}${MANPREFIX}/man1/${APPNAME}.1
+ @chmod 644 ${DESTDIR}${MANPREFIX}/man1/${APPNAME}.1
+
+uninstall:
+ @echo removing executable file from ${DESTDIR}${PREFIX}/bin
+ @rm -f ${DESTDIR}${PREFIX}/bin/${APPNAME}
+ @echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
+ @rm -f ${DESTDIR}${MANPREFIX}/man1/${APPNAME}.1
+
+.PHONY: all options clean dist install uninstall
diff --git a/README.md b/README.md
@@ -0,0 +1,2 @@
+simple wallet
+=============
diff --git a/arg.h b/arg.h
@@ -0,0 +1,41 @@
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef __ARG_H__
+#define __ARG_H__
+
+extern char *argv0;
+
+#define USED(x) ((void)(x))
+
+#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
+ argv[0] && argv[0][1]\
+ && argv[0][0] == '-';\
+ argc--, argv++) {\
+ char _argc;\
+ char **_argv;\
+ if (argv[0][1] == '-' && argv[0][2] == '\0') {\
+ argv++;\
+ argc--;\
+ break;\
+ }\
+ for (argv[0]++, _argv = argv; argv[0][0];\
+ argv[0]++) {\
+ if (_argv != argv)\
+ break;\
+ _argc = argv[0][0];\
+ switch (_argc)
+
+#define ARGEND }\
+ USED(_argc);\
+ }\
+ USED(argv);\
+ USED(argc);
+
+#define EARGF(x) ((argv[1] == NULL)? ((x), abort(), (char *)0) :\
+ (argc--, argv++, argv[0]))
+
+#endif
+
diff --git a/config.mk b/config.mk
@@ -0,0 +1,25 @@
+# sw - simple wallet
+VERSION = 0.1
+
+# Customize below to fit your system
+
+# paths
+PREFIX = /usr/local
+MANPREFIX = ${PREFIX}/share/man
+
+# includes and libs
+INCS =
+LIBS =
+
+# flags
+CPPFLAGS = -D_DEFAULT_SOURCE -D_POSIX_C_SOURCE=2 -DVERSION=\"${VERSION}\"
+#CFLAGS = -g -std=c99 -pedantic -Wall -O0 ${INCS} ${CPPFLAGS}
+CFLAGS = -std=c99 -pedantic -Wall -Wno-deprecated-declarations -Os ${INCS} ${CPPFLAGS}
+LDFLAGS = -s ${LIBS}
+
+# Solaris
+#CFLAGS = -fast ${INCS} -DVERSION=\"${VERSION}\"
+#LDFLAGS = ${LIBS}
+
+# compiler and linker
+CC = cc
diff --git a/sw.1 b/sw.1
diff --git a/sw.c b/sw.c
@@ -0,0 +1,251 @@
+/* simple wallet */
+
+#define _XOPEN_SOURCE
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "arg.h"
+char *argv0;
+
+typedef struct Movement Movement;
+struct Movement {
+ int id;
+ int ts;
+ float amount;
+ char note[64];
+ Movement *next;
+};
+
+/* function declarations */
+int addmov(char *date, float amount, char *note);
+void attach(Movement *m);
+void attach_sorted_desc(Movement **head, Movement *m);
+void deletemov(int id);
+void detach(Movement *m);
+void die(const char *errstr, ...);
+void *ecalloc(size_t nmemb, size_t size);
+void freemovs(void);
+void loadmovs(void);
+void savemovs(void);
+void showmovs(void);
+void sortmovs(void);
+int strfts(char *s);
+void usage(void);
+
+/* variables */
+Movement *movs;
+FILE *movsfile;
+char movsfilename[256];
+
+/* function implementations */
+int
+addmov(char *date, float amount, char *note) {
+ Movement *m;
+ int id = 0;
+
+ for(m = movs; m; m = m->next)
+ if(m->id > id)
+ id = m->id;
+ ++id;
+ m = ecalloc(1, sizeof(Movement));
+ m->id = id;
+ m->ts = strfts(date);
+ m->amount = amount;
+ memcpy(m->note, note, sizeof(m->note));
+ m->note[ sizeof(m->note) - 1] = '\0';
+ attach(m);
+ return 0;
+}
+
+void
+attach(Movement *m) {
+ m->next = movs;
+ movs = m;
+}
+
+void
+attach_sorted_desc(Movement **head, Movement *m) {
+ Movement *t;
+
+ if(!*head || m->ts > (*head)->ts) {
+ m->next = *head;
+ *head = m;
+ return;
+ }
+ t = *head;
+ while(t->next && m->ts <= t->next->ts)
+ t = t->next;
+ m->next = t->next;
+ t->next = m;
+}
+
+void
+deletemov(int id) {
+ Movement *m;
+
+ for(m = movs; m; m = m->next)
+ if(m->id == id)
+ break;
+ if(m) {
+ detach(m);
+ free(m);
+ }
+}
+
+void
+detach(Movement *m) {
+ Movement **tm;
+
+ for (tm = &movs; *tm && *tm != m; tm = &(*tm)->next);
+ *tm = m->next;
+}
+
+void
+die(const char *errstr, ...) {
+ va_list ap;
+
+ va_start(ap, errstr);
+ vfprintf(stderr, errstr, ap);
+ va_end(ap);
+ exit(1);
+}
+
+void *
+ecalloc(size_t nmemb, size_t size) {
+ void *p;
+
+ if(!(p = calloc(nmemb, size)))
+ die("Cannot allocate memory.\n");
+ return p;
+}
+
+void
+freemovs(void) {
+ Movement *m;
+
+ while(movs) {
+ m = movs;
+ detach(m);
+ free(m);
+ }
+}
+
+void
+loadmovs(void) {
+ Movement *m;
+ int r;
+
+ rewind(movsfile);
+ while(1) {
+ m = ecalloc(1, sizeof(Movement));
+ r = fscanf(movsfile, "%d %d %f %[^\n]", &m->id, &m->ts, &m->amount, &m->note[0]);
+ if(r <= 0) {
+ if(feof(movsfile))
+ break;
+ die("%s: file corrupted\n", movsfilename);
+ }
+ attach(m);
+ }
+}
+
+void
+savemovs(void) {
+ Movement *m;
+
+ movsfile = fopen(movsfilename, "w");
+ for(m = movs; m; m = m->next)
+ fprintf(movsfile, "%d %d %f %s\n", m->id, m->ts, m->amount, m->note);
+ fclose(movsfile);
+}
+
+void
+showmovs(void) {
+ Movement *m;
+ time_t ts;
+ float tot = 0;
+ int nmovs = 0;
+ char time[32];
+
+ printf("%3s | %16s | %8s | %s\n", "id", "date", "amount", "note");
+ for(m = movs; m; m = m->next) {
+ ts = m->ts;
+ strftime(time, sizeof time, "%d/%m/%Y %H:%M", localtime(&ts));
+ printf("%3d | %16s | %8.2f | %s\n", m->id, time, m->amount, m->note);
+ tot += m->amount;
+ ++nmovs;
+ }
+ printf("%3s | %17s: %8.2f |\n", "", "Wallet balance", tot);
+ printf("%3s | %17s: %8d |\n", "", "Total movements", nmovs);
+}
+
+void
+sortmovs(void) {
+ Movement *sorted = NULL, *m, *t;
+
+ m = movs;
+ while(m) {
+ t = m;
+ m = m->next;
+ attach_sorted_desc(&sorted, t);
+ }
+ movs = sorted;
+}
+
+int
+strfts(char *s) {
+ struct tm tm = {0};
+
+ if(!strcmp(s, "now"))
+ return time(NULL);
+ strptime(s, "%d/%m/%Y %H:%M", &tm);
+ return mktime(&tm);
+}
+
+void
+usage(void) {
+ die("Usage: %s [-v] [-d <id>] [-f <file>] [<date> <amount> <note>]\n", argv0);
+}
+
+int
+main(int argc, char *argv[]) {
+ int delid = 0;
+
+ ARGBEGIN {
+ case 'd': delid = atoi(EARGF(usage())); break;
+ case 'f':
+ snprintf(movsfilename, sizeof movsfilename, "%s", EARGF(usage()));
+ break;
+ case 'v': die("sw-"VERSION"\n");
+ default: usage();
+ } ARGEND;
+
+ if(!*movsfilename)
+ snprintf(movsfilename, sizeof movsfilename, "%s/%s", getenv("HOME"), ".sw");
+ movsfile = fopen(movsfilename, "r");
+ if(!movsfile)
+ die("%s: cannot open the file\n", movsfilename);
+ loadmovs();
+ fclose(movsfile);
+
+ if(delid) {
+ deletemov(delid);
+ savemovs();
+ freemovs();
+ return 0;
+ }
+ if(argc) {
+ if(argc != 3)
+ usage();
+ addmov(argv[0], atof(argv[1]), argv[2]);
+ savemovs();
+ freemovs();
+ return 0;
+ }
+ sortmovs();
+ showmovs();
+ freemovs();
+ return 0;
+}
