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ls: rework implementation for reversing the sort order

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Update the usage line as well.
This commit is contained in:
Markus Teich 2013-10-06 19:52:18 +01:00 committed by sin
parent 5e9c4d781b
commit 952fa19362
1 changed files with 8 additions and 8 deletions
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16
ls.c
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@ -33,16 +33,16 @@ static bool aflag = false;
static bool dflag = false;
static bool iflag = false;
static bool lflag = false;
static bool rflag = false;
static bool tflag = false;
static bool Uflag = false;
static int sortorder = 1;
static bool first = true;
static bool many;
static void
usage(void)
{
eprintf("usage: %s [-adiltU] [FILE...]\n", argv0);
eprintf("usage: %s [-adilrtU] [FILE...]\n", argv0);
}
int
@ -65,7 +65,7 @@ main(int argc, char *argv[])
lflag = true;
break;
case 'r':
sortorder = -1;
rflag = true;
break;
case 't':
tflag = true;
@ -87,7 +87,7 @@ main(int argc, char *argv[])
mkent(&ents[i], argv[i], true);
qsort(ents, argc, sizeof *ents, entcmp);
for(i = 0; i < argc; i++)
ls(&ents[i]);
ls(&ents[rflag ? argc-i-1 : i]);
return 0;
}
@ -98,9 +98,9 @@ entcmp(const void *va, const void *vb)
const Entry *a = va, *b = vb;
if(tflag)
return sortorder * (b->mtime - a->mtime);
return b->mtime - a->mtime;
else
return sortorder * (strcmp(a->name, b->name));
return strcmp(a->name, b->name);
}
void
@ -155,8 +155,8 @@ lsdir(const char *path)
if(!Uflag){
qsort(ents, n, sizeof *ents, entcmp);
for(i = 0; i < n; i++) {
output(&ents[i]);
free(ents[i].name);
output(&ents[rflag ? n-i-1 : i]);
free(ents[rflag ? n-i-1 : i].name);
}
}
if(chdir(cwd) == -1)