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Implement -u support for ls(1)

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sin 2015-02-18 16:29:46 +00:00
parent 9bd094193d
commit 2a3f82a5cd
3 changed files with 19 additions and 5 deletions
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2
README
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@ -40,7 +40,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
=* ln yes none =* ln yes none
=* logger yes none =* logger yes none
=* logname yes none =* logname yes none
= ls no -C, -R, -u = ls no -C, -R
=* md5sum non-posix none =* md5sum non-posix none
=* mkdir yes none =* mkdir yes none
=* mkfifo yes none =* mkfifo yes none

7
ls.1
View File

@ -1,4 +1,4 @@
.Dd February 17, 2015 .Dd February 18, 2015
.Dt LS 1 .Dt LS 1
.Os sbase .Os sbase
.Sh NAME .Sh NAME
@ -6,7 +6,7 @@
.Nd list directory contents .Nd list directory contents
.Sh SYNOPSIS .Sh SYNOPSIS
.Nm .Nm
.Op Fl 1acdFHhiLlqrtU .Op Fl 1acdFHhiLlqrtUu
.Op Ar file ... .Op Ar file ...
.Sh DESCRIPTION .Sh DESCRIPTION
.Nm .Nm
@ -44,6 +44,9 @@ Reverse the sort order.
Sort files by last file status/modification time instead of by name. Sort files by last file status/modification time instead of by name.
.It Fl U .It Fl U
Keep the list unsorted. Keep the list unsorted.
.It Fl u
Use file's last access time instead of last modification time for
sorting or printing.
.El .El
.Sh SEE ALSO .Sh SEE ALSO
.Xr stat 2 .Xr stat 2

15
ls.c
View File

@ -37,6 +37,7 @@ static int qflag = 0;
static int rflag = 0; static int rflag = 0;
static int tflag = 0; static int tflag = 0;
static int Uflag = 0; static int Uflag = 0;
static int uflag = 0;
static int first = 1; static int first = 1;
static int many; static int many;
@ -55,7 +56,12 @@ mkent(struct entry *ent, char *path, int dostat, int follow)
ent->uid = st.st_uid; ent->uid = st.st_uid;
ent->gid = st.st_gid; ent->gid = st.st_gid;
ent->size = st.st_size; 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; ent->ino = st.st_ino;
if (S_ISLNK(ent->mode)) if (S_ISLNK(ent->mode))
ent->tmode = stat(path, &st) == 0 ? st.st_mode : 0; ent->tmode = stat(path, &st) == 0 ? st.st_mode : 0;
@ -247,7 +253,7 @@ ls(const struct entry *ent)
static void static void
usage(void) usage(void)
{ {
eprintf("usage: %s [-1acdFHhiLlqrtU] [file ...]\n", argv0); eprintf("usage: %s [-1acdFHhiLlqrtUu] [file ...]\n", argv0);
} }
int int
@ -265,6 +271,7 @@ main(int argc, char *argv[])
break; break;
case 'c': case 'c':
cflag = 1; cflag = 1;
uflag = 0;
break; break;
case 'd': case 'd':
dflag = 1; dflag = 1;
@ -299,6 +306,10 @@ main(int argc, char *argv[])
case 'U': case 'U':
Uflag = 1; Uflag = 1;
break; break;
case 'u':
uflag = 1;
cflag = 0;
break;
default: default:
usage(); usage();
} ARGEND; } ARGEND;