From 69229a6c92a2d73bcee7c06eb79bd0a4f40d4e16 Mon Sep 17 00:00:00 2001
From: Matt Kraai <kraai@debian.org>
Date: Thu, 19 Oct 2000 21:28:32 +0000
Subject: [PATCH] Piss people off by removing [+-][0-9]+ options from tail.

---
 applets/usage.c  |  1 -
 coreutils/tail.c | 26 +++-----------------------
 tail.c           | 26 +++-----------------------
 usage.c          |  1 -
 4 files changed, 6 insertions(+), 48 deletions(-)

diff --git a/applets/usage.c b/applets/usage.c
index 51ab9a813..11326432c 100644
--- a/applets/usage.c
+++ b/applets/usage.c
@@ -1164,7 +1164,6 @@ const char tail_usage[] =
 	"\t-c=N[kbm]\toutput the last N bytes\n"
 #endif
 	"\t-n NUM\t\tPrint last NUM lines instead of first 10\n"
-	"\t\t\tAlso can be -NUM or +NUM.\n"
 	"\t-f\t\tOutput data as the file grows.\n"
 #ifndef BB_FEATURE_SIMPLE_TAIL
 	"\t-q\t\tnever output headers giving file names\n"
diff --git a/coreutils/tail.c b/coreutils/tail.c
index 1091d28ed..a9da95462 100644
--- a/coreutils/tail.c
+++ b/coreutils/tail.c
@@ -61,7 +61,7 @@ static char verbose = 0;
 
 static off_t units=0;
 
-int tail_stream(int fd)
+static int tail_stream(int fd)
 {
 	ssize_t startpoint;
 	ssize_t endpoint=0;
@@ -155,18 +155,6 @@ void add_file(char *name)
 	strcpy(files[n_files - 1], name);
 }
 
-void checknumbers(const char* name)
-{
-	int test=atoi(name);
-	if(test){
-		units=test;
-		if(units<0)
-			units=units-1;
-	} else {
-		fatalError("Unrecognised number '%s'\n", name);
-	}
-}
-
 int tail_main(int argc, char **argv)
 {
 	int show_headers = 1;
@@ -178,14 +166,9 @@ int tail_main(int argc, char **argv)
 
 	opterr = 0;
 	
-	while ((opt=getopt(argc,argv,"c:fhn:s:q:v123456789+")) >0) {
+	while ((opt=getopt(argc,argv,"c:fhn:s:q:v")) >0) {
 
 		switch (opt) {
-			case '1':case '2':case '3':case '4':case '5':
-			case '6':case '7':case '8':case '9':case '0':
-				checknumbers(argv[optind-1]);
-				break;
-
 #ifndef BB_FEATURE_SIMPLE_TAIL
 		case 'c':
 			unit_type = BYTES;
@@ -253,10 +236,7 @@ int tail_main(int argc, char **argv)
 			else
 				break;
 		}else {
-			if (*argv[optind] == '+') {
-				checknumbers(argv[optind]);
-			}
-			else if (!strcmp(argv[optind], "-")) {
+			if (!strcmp(argv[optind], "-")) {
 				add_file(STDIN);
 			} else {
 				add_file(argv[optind]);
diff --git a/tail.c b/tail.c
index 1091d28ed..a9da95462 100644
--- a/tail.c
+++ b/tail.c
@@ -61,7 +61,7 @@ static char verbose = 0;
 
 static off_t units=0;
 
-int tail_stream(int fd)
+static int tail_stream(int fd)
 {
 	ssize_t startpoint;
 	ssize_t endpoint=0;
@@ -155,18 +155,6 @@ void add_file(char *name)
 	strcpy(files[n_files - 1], name);
 }
 
-void checknumbers(const char* name)
-{
-	int test=atoi(name);
-	if(test){
-		units=test;
-		if(units<0)
-			units=units-1;
-	} else {
-		fatalError("Unrecognised number '%s'\n", name);
-	}
-}
-
 int tail_main(int argc, char **argv)
 {
 	int show_headers = 1;
@@ -178,14 +166,9 @@ int tail_main(int argc, char **argv)
 
 	opterr = 0;
 	
-	while ((opt=getopt(argc,argv,"c:fhn:s:q:v123456789+")) >0) {
+	while ((opt=getopt(argc,argv,"c:fhn:s:q:v")) >0) {
 
 		switch (opt) {
-			case '1':case '2':case '3':case '4':case '5':
-			case '6':case '7':case '8':case '9':case '0':
-				checknumbers(argv[optind-1]);
-				break;
-
 #ifndef BB_FEATURE_SIMPLE_TAIL
 		case 'c':
 			unit_type = BYTES;
@@ -253,10 +236,7 @@ int tail_main(int argc, char **argv)
 			else
 				break;
 		}else {
-			if (*argv[optind] == '+') {
-				checknumbers(argv[optind]);
-			}
-			else if (!strcmp(argv[optind], "-")) {
+			if (!strcmp(argv[optind], "-")) {
 				add_file(STDIN);
 			} else {
 				add_file(argv[optind]);
diff --git a/usage.c b/usage.c
index 51ab9a813..11326432c 100644
--- a/usage.c
+++ b/usage.c
@@ -1164,7 +1164,6 @@ const char tail_usage[] =
 	"\t-c=N[kbm]\toutput the last N bytes\n"
 #endif
 	"\t-n NUM\t\tPrint last NUM lines instead of first 10\n"
-	"\t\t\tAlso can be -NUM or +NUM.\n"
 	"\t-f\t\tOutput data as the file grows.\n"
 #ifndef BB_FEATURE_SIMPLE_TAIL
 	"\t-q\t\tnever output headers giving file names\n"