annotate toys/posix/ls.c @ 1037:af1780148f7c draft

Implement ls --color=auto, suggested by Rich Felker.
author Rob Landley <rob@landley.net>
date Sun, 01 Sep 2013 08:00:41 -0500
parents 422696039640
children 7dfad5f21984
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1 /* ls.c - list files
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2 *
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3 * Copyright 2012 Andre Renaud <andre@bluewatersys.com>
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4 * Copyright 2012 Rob Landley <rob@landley.net>
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5 *
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6 * See http://opengroup.org/onlinepubs/9699919799/utilities/ls.html
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7
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8 USE_LS(NEWTOY(ls, USE_LS_COLOR("(color):;")"goACFHLRSacdfiklmnpqrstux1[-1Cglmnox][-cu][-ftS][-HL]", TOYFLAG_BIN))
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9
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10 config LS
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11 bool "ls"
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12 default y
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13 help
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14 usage: ls [-ACFHLRSacdfiklmnpqrstux1] [directory...]
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15 list files
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16
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17 what to show:
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18 -a all files including .hidden -c use ctime for timestamps
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19 -d directory, not contents -i inode number
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20 -k block sizes in kilobytes -p put a '/' after dir names
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21 -q unprintable chars as '?' -s size (in blocks)
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22 -u use access time for timestamps -A list all files but . and ..
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23 -H follow command line symlinks -L follow symlinks
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24 -R recursively list files in subdirs -F append /dir *exe @sym |FIFO
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25
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26 output formats:
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27 -1 list one file per line -C columns (sorted vertically)
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28 -g like -l but no owner -l long (show full details)
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29 -m comma separated -n like -l but numeric uid/gid
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30 -o like -l but no group -x columns (horizontal sort)
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31
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32 sorting (default is alphabetical):
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33 -f unsorted -r reverse -t timestamp -S size
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34
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35 config LS_COLOR
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36 bool "ls --color"
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37 default y
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38 depends on LS
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39 help
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40 usage: ls --color[=auto]
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41
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42 --color device=yellow symlink=turquoise/red dir=blue socket=purple
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43 files: exe=green suid=red suidfile=redback stickydir=greenback
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44 =auto means detect if output is a tty.
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45 */
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46
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47 #define FOR_ls
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48 #include "toys.h"
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49
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50 // test sst output (suid/sticky in ls flaglist)
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52 // ls -lR starts .: then ./subdir:
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53
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54 GLOBALS(
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55 char *color;
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56
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57 struct dirtree *files;
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58
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59 unsigned screen_width;
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60 int nl_title;
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61
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62 // group and user can make overlapping use of the utoa() buf, so move it
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63 char uid_buf[12];
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64 )
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65
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66 void dlist_to_dirtree(struct dirtree *parent)
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67 {
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68 // Turn double_list into dirtree
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69 struct dirtree *dt = parent->child;
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70 if (dt) {
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71 dt->parent->next = NULL;
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72 while (dt) {
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73 dt->parent = parent;
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74 dt = dt->next;
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75 }
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76 }
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77 }
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78
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79 static char endtype(struct stat *st)
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80 {
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81 mode_t mode = st->st_mode;
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82 if ((toys.optflags&(FLAG_F|FLAG_p)) && S_ISDIR(mode)) return '/';
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83 if (toys.optflags & FLAG_F) {
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84 if (S_ISLNK(mode)) return '@';
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85 if (S_ISREG(mode) && (mode&0111)) return '*';
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86 if (S_ISFIFO(mode)) return '|';
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87 if (S_ISSOCK(mode)) return '=';
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88 }
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89 return 0;
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90 }
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92 static char *getusername(uid_t uid)
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93 {
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94 struct passwd *pw = getpwuid(uid);
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95 utoa_to_buf(uid, TT.uid_buf, 12);
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96 return pw ? pw->pw_name : TT.uid_buf;
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97 }
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99 static char *getgroupname(gid_t gid)
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100 {
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101 struct group *gr = getgrgid(gid);
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102 return gr ? gr->gr_name : utoa(gid);
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103 }
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104
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105 // Figure out size of printable entry fields for display indent/wrap
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106
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107 static void entrylen(struct dirtree *dt, unsigned *len)
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108 {
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109 struct stat *st = &(dt->st);
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110 unsigned flags = toys.optflags;
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111
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112 *len = strlen(dt->name);
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113 if (endtype(st)) ++*len;
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114 if (flags & FLAG_m) ++*len;
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115
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116 if (flags & FLAG_i) *len += (len[1] = numlen(st->st_ino));
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117 if (flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g)) {
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118 unsigned fn = flags & FLAG_n;
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119 len[2] = numlen(st->st_nlink);
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120 len[3] = strlen(fn ? utoa(st->st_uid) : getusername(st->st_uid));
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121 len[4] = strlen(fn ? utoa(st->st_gid) : getgroupname(st->st_gid));
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122 if (S_ISBLK(st->st_mode) || S_ISCHR(st->st_mode)) {
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123 // cheating slightly here: assuming minor is always 3 digits to avoid
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124 // tracking another column
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125 len[5] = numlen(major(st->st_rdev))+5;
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126 } else len[5] = numlen(st->st_size);
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127 }
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128 if (flags & FLAG_s) *len += (len[6] = numlen(st->st_blocks));
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129 }
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130
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131 static int compare(void *a, void *b)
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132 {
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133 struct dirtree *dta = *(struct dirtree **)a;
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134 struct dirtree *dtb = *(struct dirtree **)b;
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135 int ret = 0, reverse = (toys.optflags & FLAG_r) ? -1 : 1;
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136
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137 if (toys.optflags & FLAG_S) {
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138 if (dta->st.st_size > dtb->st.st_size) ret = -1;
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139 else if (dta->st.st_size < dtb->st.st_size) ret = 1;
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140 }
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141 if (toys.optflags & FLAG_t) {
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142 if (dta->st.st_mtime > dtb->st.st_mtime) ret = -1;
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143 else if (dta->st.st_mtime < dtb->st.st_mtime) ret = 1;
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144 }
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145 if (!ret) ret = strcmp(dta->name, dtb->name);
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146 return ret * reverse;
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147 }
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148
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149 // callback from dirtree_recurse() determining how to handle this entry.
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150
565
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151 static int filter(struct dirtree *new)
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152 {
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153 int flags = toys.optflags;
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154
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155 // Special case to handle enormous dirs without running out of memory.
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156 if (flags == (FLAG_1|FLAG_f)) {
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157 xprintf("%s\n", new->name);
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158 return 0;
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159 }
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160
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161 if (flags & FLAG_u) new->st.st_mtime = new->st.st_atime;
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162 if (flags & FLAG_c) new->st.st_mtime = new->st.st_ctime;
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163 if (flags & FLAG_k) new->st.st_blocks = (new->st.st_blocks + 1) / 2;
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164
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165 if (flags & (FLAG_a|FLAG_f)) return DIRTREE_SAVE;
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166 if (!(flags & FLAG_A) && new->name[0]=='.') return 0;
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167
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168 return dirtree_notdotdot(new) & DIRTREE_SAVE;
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169 }
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170
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171 // For column view, calculate horizontal position (for padding) and return
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172 // index of next entry to display.
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173
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174 static unsigned long next_column(unsigned long ul, unsigned long dtlen,
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175 unsigned columns, unsigned *xpos)
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176 {
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177 unsigned long transition;
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178 unsigned height, widecols;
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179
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180 // Horizontal sort is easy
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181 if (!(toys.optflags & FLAG_C)) {
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182 *xpos = ul % columns;
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183 return ul;
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184 }
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185
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186 // vertical sort
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187
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188 // For -x, calculate height of display, rounded up
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189 height = (dtlen+columns-1)/columns;
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190
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191 // Sanity check: does wrapping render this column count impossible
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192 // due to the right edge wrapping eating a whole row?
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193 if (height*columns - dtlen >= height) {
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194 *xpos = columns;
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195 return 0;
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196 }
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197
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198 // Uneven rounding goes along right edge
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199 widecols = dtlen % height;
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200 if (!widecols) widecols = height;
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201 transition = widecols * columns;
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202 if (ul < transition) {
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203 *xpos = ul % columns;
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204 return (*xpos*height) + (ul/columns);
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205 }
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206
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207 ul -= transition;
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208 *xpos = ul % (columns-1);
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209
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210 return (*xpos*height) + widecols + (ul/(columns-1));
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211 }
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212
940
a425f97975d3 First pass at ls --color
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213 int color_from_mode(mode_t mode)
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214 {
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215 int color = 0;
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216
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217 if (S_ISDIR(mode)) color = 256+34;
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218 else if (S_ISLNK(mode)) color = 256+36;
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219 else if (S_ISBLK(mode) || S_ISCHR(mode)) color = 256+33;
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220 else if (S_ISREG(mode) && (mode&0111)) color = 256+32;
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221 else if (S_ISFIFO(mode)) color = 33;
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222 else if (S_ISSOCK(mode)) color = 256+35;
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223
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224 return color;
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225 }
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226
565
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227 // Display a list of dirtree entries, according to current format
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228 // Output types -1, -l, -C, or stream
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229
573
c42ed3601b35 Simplify/unify listfiles recursion: populate directory node (and detect top of tree) at start of function rather than end (and redundantly in main). Move title printing down next to total printing.
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230 static void listfiles(int dirfd, struct dirtree *indir)
565
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231 {
694
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232 struct dirtree *dt, **sort = 0;
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233 unsigned long dtlen = 0, ul = 0;
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234 unsigned width, flags = toys.optflags, totals[7], len[7],
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235 *colsizes = (unsigned *)(toybuf+260), columns = (sizeof(toybuf)-260)/4;
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236
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237 memset(totals, 0, sizeof(totals));
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238
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239 // Silently descend into single directory listed by itself on command line.
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240 // In this case only show dirname/total header when given -R.
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241 if (!indir->parent) {
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242 if (!(dt = indir->child)) return;
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243 if (S_ISDIR(dt->st.st_mode) && !dt->next && !(flags & FLAG_d)) {
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244 dt->extra = 1;
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245 listfiles(open(dt->name, 0), dt);
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246 return;
565
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247 }
694
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248 } else {
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249 // Read directory contents. We dup() the fd because this will close it.
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250 indir->data = dup(dirfd);
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251 dirtree_recurse(indir, filter, (flags&FLAG_L));
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252 }
565
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253
694
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254 // Copy linked list to array and sort it. Directories go in array because
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255 // we visit them in sorted order.
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256
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257 for (;;) {
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258 for (dt = indir->child; dt; dt = dt->next) {
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259 if (sort) sort[dtlen] = dt;
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260 dtlen++;
565
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261 }
694
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262 if (sort) break;
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263 sort = xmalloc(dtlen * sizeof(void *));
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264 dtlen = 0;
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265 continue;
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266 }
565
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267
694
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268 // Label directory if not top of tree, or if -R
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269 if (indir->parent && (!indir->extra || (flags & FLAG_R)))
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270 {
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271 char *path = dirtree_path(indir, 0);
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fb582378a36a Implement DIRTREE_SYMFOLLOW and ls -cSHL.
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272
694
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273 if (TT.nl_title++) xputc('\n');
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274 xprintf("%s:\n", path);
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275 free(path);
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276 }
593
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277
694
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278 if (!(flags & FLAG_f)) qsort(sort, dtlen, sizeof(void *), (void *)compare);
565
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279
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280 // Find largest entry in each field for display alignment
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281 if (flags & (FLAG_C|FLAG_x)) {
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282
694
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283 // columns can't be more than toybuf can hold, or more than files,
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284 // or > 1/2 screen width (one char filename, one space).
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285 if (columns > TT.screen_width/2) columns = TT.screen_width/2;
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286 if (columns > dtlen) columns = dtlen;
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287
694
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288 // Try to fit as many columns as we can, dropping down by one each time
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289 for (;columns > 1; columns--) {
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diff changeset
290 unsigned c, totlen = columns;
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
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291
694
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292 memset(colsizes, 0, columns*sizeof(unsigned));
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293 for (ul=0; ul<dtlen; ul++) {
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294 entrylen(sort[next_column(ul, dtlen, columns, &c)], len);
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295 if (c == columns) break;
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296 // Does this put us over budget?
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297 if (*len > colsizes[c]) {
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298 totlen += *len-colsizes[c];
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299 colsizes[c] = *len;
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300 if (totlen > TT.screen_width) break;
584
ca6875170b9a Implement -C and -x for ls.
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parents: 580
diff changeset
301 }
694
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302 }
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diff changeset
303 // If it fit, stop here
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304 if (ul == dtlen) break;
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305 }
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306 } else if (flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g|FLAG_s)) {
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307 unsigned long blocks = 0;
565
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308
694
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309 for (ul = 0; ul<dtlen; ul++)
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310 {
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311 entrylen(sort[ul], len);
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312 for (width=0; width<6; width++)
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313 if (len[width] > totals[width]) totals[width] = len[width];
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314 blocks += sort[ul]->st.st_blocks;
573
c42ed3601b35 Simplify/unify listfiles recursion: populate directory node (and detect top of tree) at start of function rather than end (and redundantly in main). Move title printing down next to total printing.
Rob Landley <rob@landley.net>
parents: 571
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315 }
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316
694
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317 if (indir->parent) xprintf("total %lu\n", blocks);
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318 }
565
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319
694
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320 // Loop through again to produce output.
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321 memset(toybuf, ' ', 256);
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322 width = 0;
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323 for (ul = 0; ul<dtlen; ul++) {
940
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
324 unsigned curcol, color = 0;
694
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325 unsigned long next = next_column(ul, dtlen, columns, &curcol);
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326 struct stat *st = &(sort[next]->st);
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327 mode_t mode = st->st_mode;
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328 char et = endtype(st);
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329
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330 // Skip directories at the top of the tree when -d isn't set
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331 if (S_ISDIR(mode) && !indir->parent && !(flags & FLAG_d)) continue;
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332 TT.nl_title=1;
571
1a06fcaa1775 Make -d work in ls.
Rob Landley <rob@landley.net>
parents: 570
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333
694
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334 // Handle padding and wrapping for display purposes
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335 entrylen(sort[next], len);
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336 if (ul) {
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337 if (flags & FLAG_m) xputc(',');
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338 if (flags & (FLAG_C|FLAG_x)) {
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339 if (!curcol) xputc('\n');
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340 } else if ((flags & FLAG_1) || width+1+*len > TT.screen_width) {
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341 xputc('\n');
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342 width = 0;
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343 } else {
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344 xputc(' ');
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345 width++;
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346 }
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347 }
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348 width += *len;
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
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349
694
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350 if (flags & FLAG_i) xprintf("% *lu ", len[1], (unsigned long)st->st_ino);
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351 if (flags & FLAG_s) xprintf("% *lu ", len[6], (unsigned long)st->st_blocks);
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
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diff changeset
352
694
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353 if (flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g)) {
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diff changeset
354 struct tm *tm;
885
beb32d780164 Add library function for the file permission formatting in ls and stat
Felix Janda <felix.janda@posteo.de>
parents: 768
diff changeset
355 char perm[11], thyme[64], *usr, *upad, *grp, *grpad;
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
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diff changeset
356
916
b92cb3cc9696 Stat cleanup.
Rob Landley <rob@landley.net>
parents: 885
diff changeset
357 mode_to_string(mode, perm);
593
fb582378a36a Implement DIRTREE_SYMFOLLOW and ls -cSHL.
Rob Landley <rob@landley.net>
parents: 591
diff changeset
358
694
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359 tm = localtime(&(st->st_mtime));
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360 strftime(thyme, sizeof(thyme), "%F %H:%M", tm);
593
fb582378a36a Implement DIRTREE_SYMFOLLOW and ls -cSHL.
Rob Landley <rob@landley.net>
parents: 591
diff changeset
361
694
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362 if (flags&FLAG_o) grp = grpad = toybuf+256;
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363 else {
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364 grp = (flags&FLAG_n) ? utoa(st->st_gid) : getgroupname(st->st_gid);
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365 grpad = toybuf+256-(totals[4]-len[4]);
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366 }
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
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parents: 533
diff changeset
367
694
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diff changeset
368 if (flags&FLAG_g) usr = upad = toybuf+256;
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369 else {
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diff changeset
370 upad = toybuf+255-(totals[3]-len[3]);
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371 if (flags&FLAG_n) {
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372 usr = TT.uid_buf;
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diff changeset
373 utoa_to_buf(st->st_uid, TT.uid_buf, 12);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
374 } else usr = getusername(st->st_uid);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
375 }
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
376
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
377 // Coerce the st types into something we know we can print.
941
62ba5ce62e9d Make ls output major, minor for block devices.
Rob Landley <rob@landley.net>
parents: 940
diff changeset
378 printf("%s% *ld %s%s%s%s", perm, totals[2]+1, (long)st->st_nlink,
62ba5ce62e9d Make ls output major, minor for block devices.
Rob Landley <rob@landley.net>
parents: 940
diff changeset
379 usr, upad, grp, grpad);
62ba5ce62e9d Make ls output major, minor for block devices.
Rob Landley <rob@landley.net>
parents: 940
diff changeset
380
62ba5ce62e9d Make ls output major, minor for block devices.
Rob Landley <rob@landley.net>
parents: 940
diff changeset
381 if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode))
62ba5ce62e9d Make ls output major, minor for block devices.
Rob Landley <rob@landley.net>
parents: 940
diff changeset
382 printf("% *d,% 4d", totals[5]-4, major(st->st_rdev),minor(st->st_rdev));
62ba5ce62e9d Make ls output major, minor for block devices.
Rob Landley <rob@landley.net>
parents: 940
diff changeset
383 else printf("% *"PRId64, totals[5]+1, (int64_t)st->st_size);
62ba5ce62e9d Make ls output major, minor for block devices.
Rob Landley <rob@landley.net>
parents: 940
diff changeset
384 xprintf(" %s ", thyme);
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
385 }
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
386
1037
af1780148f7c Implement ls --color=auto, suggested by Rich Felker.
Rob Landley <rob@landley.net>
parents: 984
diff changeset
387 if (flags & FLAG_color) {
940
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
388 color = color_from_mode(st->st_mode);
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
389 if (color) printf("\033[%d;%dm", color>>8, color&255);
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
390 }
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
391
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
392 if (flags & FLAG_q) {
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
393 char *p;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
394 for (p=sort[next]->name; *p; p++) xputc(isprint(*p) ? *p : '?');
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
395 } else xprintf("%s", sort[next]->name);
940
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
396 if (color) xprintf("\033[0m");
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
397
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
398 if ((flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g)) && S_ISLNK(mode)) {
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
399 printf(" -> ");
1037
af1780148f7c Implement ls --color=auto, suggested by Rich Felker.
Rob Landley <rob@landley.net>
parents: 984
diff changeset
400 if (flags & FLAG_color) {
940
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
401 struct stat st2;
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
402
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
403 if (fstatat(dirfd, sort[next]->symlink, &st2, 0)) color = 256+31;
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
404 else color = color_from_mode(st2.st_mode);
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
405
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
406 if (color) printf("\033[%d;%dm", color>>8, color&255);
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
407 }
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
408
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
409 printf("%s", sort[next]->symlink);
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
410 if (color) printf("\033[0m");
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
411 }
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
412
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
413 if (et) xputc(et);
571
1a06fcaa1775 Make -d work in ls.
Rob Landley <rob@landley.net>
parents: 570
diff changeset
414
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
415 // Pad columns
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
416 if (flags & (FLAG_C|FLAG_x)) {
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
417 curcol = colsizes[curcol] - *len;
937
871c68a35e95 Fix another segfault in ls -C when terminal size is 0x0.
Rob Landley <rob@landley.net>
parents: 916
diff changeset
418 if (curcol < 255) xprintf("%s", toybuf+255-curcol);
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
419 }
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
420 }
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
421
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
422 if (width) xputc('\n');
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
423
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
424 // Free directory entries, recursing first if necessary.
571
1a06fcaa1775 Make -d work in ls.
Rob Landley <rob@landley.net>
parents: 570
diff changeset
425
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
426 for (ul = 0; ul<dtlen; free(sort[ul++])) {
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
427 if ((flags & FLAG_d) || !S_ISDIR(sort[ul]->st.st_mode)
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
428 || !dirtree_notdotdot(sort[ul])) continue;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
429
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
430 // Recurse into dirs if at top of the tree or given -R
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
431 if (!indir->parent || (flags & FLAG_R))
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
432 listfiles(openat(dirfd, sort[ul]->name, 0), sort[ul]);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
433 }
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
434 free(sort);
940
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
435 if (dirfd != AT_FDCWD) close(dirfd);
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
436 }
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
437
458
9786a697d5aa Add ls from Andre Renaud.
Rob Landley <rob@landley.net>
parents:
diff changeset
438 void ls_main(void)
9786a697d5aa Add ls from Andre Renaud.
Rob Landley <rob@landley.net>
parents:
diff changeset
439 {
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
440 char **s, *noargs[] = {".", 0};
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
441 struct dirtree *dt;
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
442
940
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
443 TT.screen_width = 80;
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
444 terminal_size(&TT.screen_width, NULL);
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
445 if (TT.screen_width<2) TT.screen_width = 2;
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
446
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
447 // Do we have an implied -1
1037
af1780148f7c Implement ls --color=auto, suggested by Rich Felker.
Rob Landley <rob@landley.net>
parents: 984
diff changeset
448 if (!isatty(1)) {
af1780148f7c Implement ls --color=auto, suggested by Rich Felker.
Rob Landley <rob@landley.net>
parents: 984
diff changeset
449 toys.optflags |= FLAG_1;
af1780148f7c Implement ls --color=auto, suggested by Rich Felker.
Rob Landley <rob@landley.net>
parents: 984
diff changeset
450 if (TT.color) toys.optflags ^= FLAG_color;
af1780148f7c Implement ls --color=auto, suggested by Rich Felker.
Rob Landley <rob@landley.net>
parents: 984
diff changeset
451 } else if (toys.optflags&(FLAG_l|FLAG_o|FLAG_n|FLAG_g))
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
452 toys.optflags |= FLAG_1;
940
a425f97975d3 First pass at ls --color
Rob Landley <rob@landley.net>
parents: 939
diff changeset
453 else if (!(toys.optflags&(FLAG_1|FLAG_x|FLAG_m))) toys.optflags |= FLAG_C;
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
454 // The optflags parsing infrastructure should really do this for us,
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
455 // but currently it has "switch off when this is set", so "-dR" and "-Rd"
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
456 // behave differently
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
457 if (toys.optflags & FLAG_d) toys.optflags &= ~FLAG_R;
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
458
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
459 // Iterate through command line arguments, collecting directories and files.
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
460 // Non-absolute paths are relative to current directory.
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
461 TT.files = dirtree_add_node(0, 0, 0);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
462 for (s = *toys.optargs ? toys.optargs : noargs; *s; s++) {
735
3aaba60133c8 Have dirtree_add_node() set parent so error message can provide full path.
Rob Landley <rob@landley.net>
parents: 733
diff changeset
463 dt = dirtree_add_node(0, *s,
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
464 (toys.optflags & (FLAG_L|FLAG_H|FLAG_l))^FLAG_l);
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
465
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
466 if (!dt) {
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
467 toys.exitval = 1;
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
468 continue;
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
469 }
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
470
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
471 // Typecast means double_list->prev temporarirly goes in dirtree->parent
733
0cd93dd23b8d Minor whitespace tweak.
Rob Landley <rob@landley.net>
parents: 714
diff changeset
472 dlist_add_nomalloc((void *)&TT.files->child, (struct double_list *)dt);
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
473 }
565
44abf4d901f3 Rewrite dirtree so we don't need readdir, scandir, and fts.h. Rewrite ls (from scratch) to use new dirtree infrastructure. (This breaks everything else that currently uses dirtree.)
Rob Landley <rob@landley.net>
parents: 533
diff changeset
474
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
475 // Turn double_list into dirtree
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
476 dlist_to_dirtree(TT.files);
569
2e0367cb9585 More work on ls. Now ls -lR sort of works-ish.
Rob Landley <rob@landley.net>
parents: 565
diff changeset
477
694
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
478 // Display the files we collected
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
479 listfiles(AT_FDCWD, TT.files);
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
480
786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
Rob Landley <rob@landley.net>
parents: 674
diff changeset
481 if (CFG_TOYBOX_FREE) free(TT.files);
458
9786a697d5aa Add ls from Andre Renaud.
Rob Landley <rob@landley.net>
parents:
diff changeset
482 }