1 /* 2 * Copyright (c) 1989 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Michael Fischbein. 7 * 8 * %sccs.include.redist.c% 9 */ 10 11 #ifndef lint 12 static char sccsid[] = "@(#)print.c 5.33 (Berkeley) 03/13/92"; 13 #endif /* not lint */ 14 15 #include <sys/param.h> 16 #include <sys/stat.h> 17 #include <fts.h> 18 #include <time.h> 19 #include <errno.h> 20 #include <grp.h> 21 #include <pwd.h> 22 #include <utmp.h> 23 #include <unistd.h> 24 #include <tzfile.h> 25 #include <stdlib.h> 26 #include <stdio.h> 27 #include <string.h> 28 #include "ls.h" 29 #include "extern.h" 30 31 static int printaname __P((FTSENT *, u_long, u_long)); 32 static void printlink __P((FTSENT *)); 33 static void printtime __P((time_t)); 34 static int printtype __P((u_int)); 35 36 #define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT) 37 38 void 39 printscol(dp) 40 DISPLAY *dp; 41 { 42 register FTSENT *p; 43 44 for (p = dp->list; p; p = p->fts_link) { 45 if (IS_NOPRINT(p)) 46 continue; 47 (void)printaname(p, dp->s_inode, dp->s_block); 48 (void)putchar('\n'); 49 } 50 } 51 52 void 53 printlong(dp) 54 DISPLAY *dp; 55 { 56 register FTSENT *p; 57 register struct stat *sp; 58 NAMES *np; 59 char buf[20]; 60 61 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) 62 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 63 64 for (p = dp->list; p; p = p->fts_link) { 65 if (IS_NOPRINT(p)) 66 continue; 67 sp = p->fts_statp; 68 if (f_inode) 69 (void)printf("%*lu ", dp->s_inode, sp->st_ino); 70 if (f_size) 71 (void)printf("%*ld ", 72 dp->s_block, howmany(sp->st_blocks, blocksize)); 73 (void)strmode(sp->st_mode, buf); 74 np = p->fts_pointer; 75 (void)printf("%s %*u %-*s %-*s ", buf, dp->s_nlink, 76 sp->st_nlink, dp->s_user, np->user, dp->s_group, 77 np->group); 78 if (f_flags) 79 (void)printf("%-*s ", dp->s_flags, np->flags); 80 if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) 81 (void)printf("%3d, %3d ", 82 major(sp->st_rdev), minor(sp->st_rdev)); 83 else 84 (void)printf("%*ld ", dp->s_size, sp->st_size); 85 if (f_accesstime) 86 printtime(sp->st_atime); 87 else if (f_statustime) 88 printtime(sp->st_ctime); 89 else 90 printtime(sp->st_mtime); 91 (void)printf("%s", p->fts_name); 92 if (f_type) 93 (void)printtype(sp->st_mode); 94 if (S_ISLNK(sp->st_mode)) 95 printlink(p); 96 (void)putchar('\n'); 97 } 98 } 99 100 #define TAB 8 101 102 void 103 printcol(dp) 104 DISPLAY *dp; 105 { 106 extern int termwidth; 107 static FTSENT **array; 108 static int lastentries = -1; 109 register FTSENT *p; 110 register int base, chcnt, cnt, col, colwidth, num; 111 int endcol, numcols, numrows, row; 112 113 /* 114 * Have to do random access in the linked list -- build a table 115 * of pointers. 116 */ 117 if (dp->entries > lastentries) { 118 lastentries = dp->entries; 119 if ((array = 120 realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) { 121 err(0, "%s", strerror(errno)); 122 printscol(dp); 123 } 124 } 125 for (p = dp->list, num = 0; p; p = p->fts_link) 126 if (p->fts_number != NO_PRINT) 127 array[num++] = p; 128 129 colwidth = dp->maxlen; 130 if (f_inode) 131 colwidth += dp->s_inode + 1; 132 if (f_size) 133 colwidth += dp->s_block + 1; 134 if (f_type) 135 colwidth += 1; 136 137 colwidth = (colwidth + TAB) & ~(TAB - 1); 138 if (termwidth < 2 * colwidth) { 139 printscol(dp); 140 return; 141 } 142 143 numcols = termwidth / colwidth; 144 numrows = num / numcols; 145 if (num % numcols) 146 ++numrows; 147 148 if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size)) 149 (void)printf("total %lu\n", howmany(dp->btotal, blocksize)); 150 for (row = 0; row < numrows; ++row) { 151 endcol = colwidth; 152 for (base = row, chcnt = col = 0; col < numcols; ++col) { 153 chcnt += printaname(array[base], dp->s_inode, 154 dp->s_block); 155 if ((base += numrows) >= num) 156 break; 157 while ((cnt = (chcnt + TAB & ~(TAB - 1))) <= endcol) { 158 (void)putchar('\t'); 159 chcnt = cnt; 160 } 161 endcol += colwidth; 162 } 163 (void)putchar('\n'); 164 } 165 } 166 167 /* 168 * print [inode] [size] name 169 * return # of characters printed, no trailing characters. 170 */ 171 static int 172 printaname(p, inodefield, sizefield) 173 register FTSENT *p; 174 u_long sizefield, inodefield; 175 { 176 struct stat *sp; 177 int chcnt; 178 179 sp = p->fts_statp; 180 chcnt = 0; 181 if (f_inode) 182 chcnt += printf("%*lu ", inodefield, sp->st_ino); 183 if (f_size) 184 chcnt += printf("%*ld ", 185 sizefield, howmany(sp->st_blocks, blocksize)); 186 chcnt += printf("%s", p->fts_name); 187 if (f_type) 188 chcnt += printtype(sp->st_mode); 189 return (chcnt); 190 } 191 192 static void 193 printtime(ftime) 194 time_t ftime; 195 { 196 int i; 197 char *longstring; 198 199 longstring = ctime(&ftime); 200 for (i = 4; i < 11; ++i) 201 (void)putchar(longstring[i]); 202 203 #define SIXMONTHS ((DAYSPERNYEAR / 2) * SECSPERDAY) 204 if (f_sectime) 205 for (i = 11; i < 24; i++) 206 (void)putchar(longstring[i]); 207 else if (ftime + SIXMONTHS > time(NULL)) 208 for (i = 11; i < 16; ++i) 209 (void)putchar(longstring[i]); 210 else { 211 (void)putchar(' '); 212 for (i = 20; i < 24; ++i) 213 (void)putchar(longstring[i]); 214 } 215 (void)putchar(' '); 216 } 217 218 static int 219 printtype(mode) 220 u_int mode; 221 { 222 switch(mode & S_IFMT) { 223 case S_IFDIR: 224 (void)putchar('/'); 225 return (1); 226 case S_IFLNK: 227 (void)putchar('@'); 228 return (1); 229 case S_IFSOCK: 230 (void)putchar('='); 231 return (1); 232 } 233 if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) { 234 (void)putchar('*'); 235 return (1); 236 } 237 return (0); 238 } 239 240 static void 241 printlink(p) 242 FTSENT *p; 243 { 244 int lnklen; 245 char name[MAXPATHLEN + 1], path[MAXPATHLEN + 1]; 246 247 if (p->fts_level == FTS_ROOTLEVEL) 248 (void)snprintf(name, sizeof(name), "%s", p->fts_name); 249 else 250 (void)snprintf(name, sizeof(name), 251 "%s/%s", p->fts_parent->fts_name, p->fts_name); 252 253 if ((lnklen = readlink(name, path, sizeof(name) - 1)) == -1) { 254 (void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno)); 255 return; 256 } 257 path[lnklen] = '\0'; 258 (void)printf(" -> %s", path); 259 } 260