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-rw-r--r--applets/busybox.c3
-rw-r--r--busybox.c3
-rw-r--r--busybox.def.h1
-rw-r--r--coreutils/uniq.c157
-rw-r--r--internal.h1
-rw-r--r--uniq.c157
6 files changed, 322 insertions, 0 deletions
diff --git a/applets/busybox.c b/applets/busybox.c
index a353069..4a7feef 100644
--- a/applets/busybox.c
+++ b/applets/busybox.c
@@ -225,6 +225,9 @@ static const struct Applet applets[] = {
#ifdef BB_UMOUNT //bin
{"umount", umount_main},
#endif
+#ifdef BB_UNIQ //bin
+ {"uniq", uniq_main},
+#endif
#ifdef BB_UPDATE //sbin
{"update", update_main},
#endif
diff --git a/busybox.c b/busybox.c
index a353069..4a7feef 100644
--- a/busybox.c
+++ b/busybox.c
@@ -225,6 +225,9 @@ static const struct Applet applets[] = {
#ifdef BB_UMOUNT //bin
{"umount", umount_main},
#endif
+#ifdef BB_UNIQ //bin
+ {"uniq", uniq_main},
+#endif
#ifdef BB_UPDATE //sbin
{"update", update_main},
#endif
diff --git a/busybox.def.h b/busybox.def.h
index 503410f..0e62ca7 100644
--- a/busybox.def.h
+++ b/busybox.def.h
@@ -75,6 +75,7 @@
#define BB_TOUCH
#define BB_TRUE_FALSE
#define BB_UMOUNT
+#define BB_UNIQ
#define BB_UPDATE
#define BB_UNAME
#define BB_GZIP
diff --git a/coreutils/uniq.c b/coreutils/uniq.c
new file mode 100644
index 0000000..7e78be3
--- /dev/null
+++ b/coreutils/uniq.c
@@ -0,0 +1,157 @@
+/*
+ * Mini sort implementation for busybox
+ *
+ *
+ * Copyright (C) 1999 by Lineo, inc.
+ * Written by John Beppu <beppu@lineo.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "internal.h"
+#include <stdio.h>
+
+static const char uniq_usage[] =
+"haha\n"
+;
+
+/* max chars in line */
+#define UNIQ_MAX 4096
+
+typedef void (Print)(FILE *, const char *);
+
+typedef int (Decide)(const char *, const char *);
+
+/* container for two lines to be compared */
+typedef struct {
+ char *a;
+ char *b;
+ int recurrence;
+ FILE *in;
+ FILE *out;
+ void *func;
+} Subject;
+
+/* set up all the variables of a uniq operation */
+static Subject *
+subject_init(Subject *self, FILE *in, FILE *out, void *func)
+{
+ self->a = NULL;
+ self->b = NULL;
+ self->in = in;
+ self->out = out;
+ self->func = func;
+ self->recurrence = 0;
+ return self;
+}
+
+/* point a and b to the appropriate lines;
+ * count the recurrences (if any) of a string;
+ */
+static Subject *
+subject_next(Subject *self)
+{
+ /* tmp line holders */
+ static char line[2][UNIQ_MAX];
+ static int alternator = 0;
+
+ if (fgets(line[alternator], UNIQ_MAX, self->in)) {
+ self->a = self->b;
+ self->b = line[alternator];
+ alternator ^= 1;
+ return self;
+ }
+
+ return NULL;
+}
+
+static Subject *
+subject_last(Subject *self)
+{
+ self->a = self->b;
+ self->b = NULL;
+ return self;
+}
+
+static Subject *
+subject_study(Subject *self)
+{
+ if (self->a == NULL) {
+ return self;
+ }
+ if (self->b == NULL) {
+ fprintf(self->out, "%s", self->a);
+ return self;
+ }
+ if (strcmp(self->a, self->b) == 0) {
+ self->recurrence++;
+ } else {
+ fprintf(self->out, "%s", self->a);
+ self->recurrence = 0;
+ }
+ return self;
+}
+
+/* one variable is the decision algo */
+/* another variable is the printing algo */
+
+/* I don't think I have to have more than a 1 line memory
+ this is the one constant */
+
+/* it seems like GNU/uniq only takes one or two files as an option */
+
+/* ________________________________________________________________________ */
+int
+uniq_main(int argc, char **argv)
+{
+ int i;
+ char opt;
+ FILE *in, *out;
+ Subject s;
+
+ /* init */
+ in = stdin;
+ out = stdout;
+
+ subject_init(&s, in, out, NULL);
+ while (subject_next(&s)) {
+ subject_study(&s);
+ }
+ subject_last(&s);
+ subject_study(&s);
+ exit(0);
+
+ /* XXX : finish the tedious stuff */
+
+ /* parse argv[] */
+ for (i = 1; i < argc; i++) {
+ if (argv[i][0] == '-') {
+ opt = argv[i][1];
+ switch (opt) {
+ case 'h':
+ usage(uniq_usage);
+ default:
+ usage(uniq_usage);
+ }
+ } else {
+ break;
+ }
+ }
+
+ exit(0);
+}
+
+/* $Id: uniq.c,v 1.1 2000/01/06 00:48:21 beppu Exp $ */
diff --git a/internal.h b/internal.h
index cb042a3..1b5c0bc 100644
--- a/internal.h
+++ b/internal.h
@@ -126,6 +126,7 @@ extern int tput_main(int argc, char** argv);
extern int true_main(int argc, char** argv);
extern int tryopen_main(int argc, char** argv);
extern int umount_main(int argc, char** argv);
+extern int uniq_main(int argc, char** argv);
extern int update_main(int argc, char** argv);
extern int uname_main(int argc, char** argv);
extern int gunzip_main (int argc, char** argv);
diff --git a/uniq.c b/uniq.c
new file mode 100644
index 0000000..7e78be3
--- /dev/null
+++ b/uniq.c
@@ -0,0 +1,157 @@
+/*
+ * Mini sort implementation for busybox
+ *
+ *
+ * Copyright (C) 1999 by Lineo, inc.
+ * Written by John Beppu <beppu@lineo.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "internal.h"
+#include <stdio.h>
+
+static const char uniq_usage[] =
+"haha\n"
+;
+
+/* max chars in line */
+#define UNIQ_MAX 4096
+
+typedef void (Print)(FILE *, const char *);
+
+typedef int (Decide)(const char *, const char *);
+
+/* container for two lines to be compared */
+typedef struct {
+ char *a;
+ char *b;
+ int recurrence;
+ FILE *in;
+ FILE *out;
+ void *func;
+} Subject;
+
+/* set up all the variables of a uniq operation */
+static Subject *
+subject_init(Subject *self, FILE *in, FILE *out, void *func)
+{
+ self->a = NULL;
+ self->b = NULL;
+ self->in = in;
+ self->out = out;
+ self->func = func;
+ self->recurrence = 0;
+ return self;
+}
+
+/* point a and b to the appropriate lines;
+ * count the recurrences (if any) of a string;
+ */
+static Subject *
+subject_next(Subject *self)
+{
+ /* tmp line holders */
+ static char line[2][UNIQ_MAX];
+ static int alternator = 0;
+
+ if (fgets(line[alternator], UNIQ_MAX, self->in)) {
+ self->a = self->b;
+ self->b = line[alternator];
+ alternator ^= 1;
+ return self;
+ }
+
+ return NULL;
+}
+
+static Subject *
+subject_last(Subject *self)
+{
+ self->a = self->b;
+ self->b = NULL;
+ return self;
+}
+
+static Subject *
+subject_study(Subject *self)
+{
+ if (self->a == NULL) {
+ return self;
+ }
+ if (self->b == NULL) {
+ fprintf(self->out, "%s", self->a);
+ return self;
+ }
+ if (strcmp(self->a, self->b) == 0) {
+ self->recurrence++;
+ } else {
+ fprintf(self->out, "%s", self->a);
+ self->recurrence = 0;
+ }
+ return self;
+}
+
+/* one variable is the decision algo */
+/* another variable is the printing algo */
+
+/* I don't think I have to have more than a 1 line memory
+ this is the one constant */
+
+/* it seems like GNU/uniq only takes one or two files as an option */
+
+/* ________________________________________________________________________ */
+int
+uniq_main(int argc, char **argv)
+{
+ int i;
+ char opt;
+ FILE *in, *out;
+ Subject s;
+
+ /* init */
+ in = stdin;
+ out = stdout;
+
+ subject_init(&s, in, out, NULL);
+ while (subject_next(&s)) {
+ subject_study(&s);
+ }
+ subject_last(&s);
+ subject_study(&s);
+ exit(0);
+
+ /* XXX : finish the tedious stuff */
+
+ /* parse argv[] */
+ for (i = 1; i < argc; i++) {
+ if (argv[i][0] == '-') {
+ opt = argv[i][1];
+ switch (opt) {
+ case 'h':
+ usage(uniq_usage);
+ default:
+ usage(uniq_usage);
+ }
+ } else {
+ break;
+ }
+ }
+
+ exit(0);
+}
+
+/* $Id: uniq.c,v 1.1 2000/01/06 00:48:21 beppu Exp $ */
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