sbase

commit 2a3f82a5cd9b6712b4e8d501d4f529ec8578c62f
parent 9bd094193d6b77282cb4cf3883147b337230ecda
Author: sin <sin@2f30.org>
Date:   Wed, 18 Feb 2015 16:29:46 +0000

Implement -u support for ls(1)

Diffstat:
M
README
 | 
2
+-
M
ls.1
 | 
7
+++++--
M
ls.c
 | 
15
+++++++++++++--

3 files changed, 19 insertions(+), 5 deletions(-)
diff --git a/README b/README
@@ -40,7 +40,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
 =* ln              yes                          none
 =* logger          yes                          none
 =* logname         yes                          none
-=  ls              no                           -C, -R, -u
+=  ls              no                           -C, -R
 =* md5sum          non-posix                    none
 =* mkdir           yes                          none
 =* mkfifo          yes                          none
diff --git a/ls.1 b/ls.1
@@ -1,4 +1,4 @@
-.Dd February 17, 2015
+.Dd February 18, 2015
 .Dt LS 1
 .Os sbase
 .Sh NAME
@@ -6,7 +6,7 @@
 .Nd list directory contents
 .Sh SYNOPSIS
 .Nm
-.Op Fl 1acdFHhiLlqrtU
+.Op Fl 1acdFHhiLlqrtUu
 .Op Ar file ...
 .Sh DESCRIPTION
 .Nm
@@ -44,6 +44,9 @@ Reverse the sort order.
 Sort files by last file status/modification time instead of by name.
 .It Fl U
 Keep the list unsorted.
+.It Fl u
+Use file's last access time instead of last modification time for
+sorting or printing.
 .El
 .Sh SEE ALSO
 .Xr stat 2
diff --git a/ls.c b/ls.c
@@ -37,6 +37,7 @@ static int qflag = 0;
 static int rflag = 0;
 static int tflag = 0;
 static int Uflag = 0;
+static int uflag = 0;
 static int first = 1;
 static int many;
 
@@ -55,7 +56,12 @@ mkent(struct entry *ent, char *path, int dostat, int follow)
 	ent->uid   = st.st_uid;
 	ent->gid   = st.st_gid;
 	ent->size  = st.st_size;
-	ent->t     = cflag ? st.st_ctime : st.st_mtime;
+	if (cflag)
+		ent->t = st.st_ctime;
+	else if (uflag)
+		ent->t = st.st_atime;
+	else
+		ent->t = st.st_mtime;
 	ent->ino   = st.st_ino;
 	if (S_ISLNK(ent->mode))
 		ent->tmode = stat(path, &st) == 0 ? st.st_mode : 0;
@@ -247,7 +253,7 @@ ls(const struct entry *ent)
 static void
 usage(void)
 {
-	eprintf("usage: %s [-1acdFHhiLlqrtU] [file ...]\n", argv0);
+	eprintf("usage: %s [-1acdFHhiLlqrtUu] [file ...]\n", argv0);
 }
 
 int
@@ -265,6 +271,7 @@ main(int argc, char *argv[])
 		break;
 	case 'c':
 		cflag = 1;
+		uflag = 0;
 		break;
 	case 'd':
 		dflag = 1;
@@ -299,6 +306,10 @@ main(int argc, char *argv[])
 	case 'U':
 		Uflag = 1;
 		break;
+	case 'u':
+		uflag = 1;
+		cflag = 0;
+		break;
 	default:
 		usage();
 	} ARGEND;