[hackers] [sbase] Don't bail out if the username/group name does not exist in ls(1) || sin

[git]

commit e3c62682ff4c47e303d398074bec989eaa54aae3
Author: sin <s...@2f30.org>
Date:   Sat Apr 5 19:22:56 2014 +0100

    Don't bail out if the username/group name does not exist in ls(1)

diff --git a/ls.c b/ls.c
index bc6c463..5d98c92 100644
--- a/ls.c
+++ b/ls.c
@@ -218,6 +218,8 @@ output(Entry *ent)
        ssize_t len;
        struct group *gr;
        struct passwd *pw;
+       char pwname[_SC_LOGIN_NAME_MAX];
+       char grname[_SC_LOGIN_NAME_MAX];
        Entry entlnk;
 
        if (iflag)
@@ -259,17 +261,17 @@ output(Entry *ent)
 
        errno = 0;
        pw = getpwuid(ent->uid);
-       if(errno)
-               eprintf("getpwuid %d:", ent->uid);
-       else if(!pw)
-               eprintf("getpwuid %d: no such user
", ent->uid);
+       if(errno || !pw)
+               snprintf(pwname, sizeof(pwname), "%d", ent->uid);
+       else
+               snprintf(pwname, sizeof(pwname), "%s", pw->pw_name);
 
        errno = 0;
        gr = getgrgid(ent->gid);
-       if(errno)
-               eprintf("getgrgid %d:", ent->gid);
-       else if(!gr)
-               eprintf("getgrgid %d: no such group
", ent->gid);
+       if(errno || !gr)
+               snprintf(grname, sizeof(grname), "%d", ent->gid);
+       else
+               snprintf(grname, sizeof(grname), "%s", gr->gr_name);
 
        if(time(NULL) > ent->mtime + (180*24*60*60)) /* 6 months ago? */
                fmt = "%b %d  %Y";
@@ -277,8 +279,8 @@ output(Entry *ent)
                fmt = "%b %d %H:%M";
 
        strftime(buf, sizeof buf, fmt, localtime(&ent->mtime));
-       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, 
indicator(ent->mode));
+       printf("%s %2ld %-4s %-5s %6lu %s %s%s", mode, (long)ent->nlink, pwname,
+              grname, (unsigned long)ent->size, buf, ent->name, 
indicator(ent->mode));
        if(S_ISLNK(ent->mode)) {
                if((len = readlink(ent->name, buf, sizeof buf)) == -1)
                        eprintf("readlink %s:", ent->name);