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Add the -F flag to ls

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This commit is contained in:
Daniel Bainton 2014-02-17 14:41:09 +00:00 committed by sin
parent c6f59aadbd
commit 080db637f8
1 changed files with 35 additions and 7 deletions
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42
ls.c
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@ -31,6 +31,7 @@ static void output(Entry *);
static bool aflag = false; static bool aflag = false;
static bool dflag = false; static bool dflag = false;
static bool Fflag = false;
static bool iflag = false; static bool iflag = false;
static bool lflag = false; static bool lflag = false;
static bool rflag = false; static bool rflag = false;
@ -42,7 +43,7 @@ static bool many;
static void static void
usage(void) usage(void)
{ {
eprintf("usage: %s [-adilrtU] [FILE...]\n", argv0); eprintf("usage: %s [-adFilrtU] [FILE...]\n", argv0);
} }
int int
@ -58,6 +59,9 @@ main(int argc, char *argv[])
case 'd': case 'd':
dflag = true; dflag = true;
break; break;
case 'F':
Fflag = true;
break;
case 'i': case 'i':
iflag = true; iflag = true;
break; break;
@ -140,7 +144,7 @@ lsdir(const char *path)
if(d->d_name[0] == '.' && !aflag) if(d->d_name[0] == '.' && !aflag)
continue; continue;
if(Uflag){ if(Uflag){
mkent(&ent, d->d_name, lflag || iflag); mkent(&ent, d->d_name, Fflag || lflag || iflag);
output(&ent); output(&ent);
} else { } else {
if(!(ents = realloc(ents, ++n * sizeof *ents))) if(!(ents = realloc(ents, ++n * sizeof *ents)))
@ -148,7 +152,7 @@ lsdir(const char *path)
if(!(p = malloc((sz = strlen(d->d_name)+1)))) if(!(p = malloc((sz = strlen(d->d_name)+1))))
eprintf("malloc:"); eprintf("malloc:");
memcpy(p, d->d_name, sz); memcpy(p, d->d_name, sz);
mkent(&ents[n-1], p, tflag || lflag || iflag); mkent(&ents[n-1], p, tflag || Fflag || lflag || iflag);
} }
} }
closedir(dp); closedir(dp);
@ -184,6 +188,28 @@ mkent(Entry *ent, char *path, bool dostat)
ent->ino = st.st_ino; ent->ino = st.st_ino;
} }
char *
indicator(mode_t mode)
{
if(!Fflag)
return "";
if(S_ISLNK(mode))
return "@";
else if(S_ISDIR(mode))
return "/";
else if(S_ISFIFO(mode))
return "|";
else if(S_ISSOCK(mode))
return "=";
else if(mode & S_IXUSR ||
mode & S_IXGRP ||
mode & S_IXOTH)
return "*";
else
return "";
}
void void
output(Entry *ent) output(Entry *ent)
{ {
@ -192,11 +218,12 @@ output(Entry *ent)
ssize_t len; ssize_t len;
struct group *gr; struct group *gr;
struct passwd *pw; struct passwd *pw;
Entry entlnk;
if (iflag) if (iflag)
printf("%lu ", (unsigned long)ent->ino); printf("%lu ", (unsigned long)ent->ino);
if(!lflag) { if(!lflag) {
puts(ent->name); printf("%s%s\n", ent->name, indicator(ent->mode));
return; return;
} }
if(S_ISREG(ent->mode)) if(S_ISREG(ent->mode))
@ -250,13 +277,14 @@ output(Entry *ent)
fmt = "%b %d %H:%M"; fmt = "%b %d %H:%M";
strftime(buf, sizeof buf, fmt, localtime(&ent->mtime)); strftime(buf, sizeof buf, fmt, localtime(&ent->mtime));
printf("%s %2ld %-4s %-5s %6lu %s %s", mode, (long)ent->nlink, pw->pw_name, printf("%s %2ld %-4s %-5s %6lu %s %s%s", mode, (long)ent->nlink, pw->pw_name,
gr->gr_name, (unsigned long)ent->size, buf, ent->name); gr->gr_name, (unsigned long)ent->size, buf, ent->name, indicator(ent->mode));
if(S_ISLNK(ent->mode)) { if(S_ISLNK(ent->mode)) {
if((len = readlink(ent->name, buf, sizeof buf)) == -1) if((len = readlink(ent->name, buf, sizeof buf)) == -1)
eprintf("readlink %s:", ent->name); eprintf("readlink %s:", ent->name);
buf[len] = '\0'; buf[len] = '\0';
printf(" -> %s", buf); mkent(&entlnk, buf, Fflag);
printf(" -> %s%s", buf, indicator(entlnk.mode));
} }
putchar('\n'); putchar('\n');
} }