- usage fresh bb_getopt_ulflags for ls -- very size reduce.
- small indent corrections - remove unecessary malloc and free
This commit is contained in:
"Vladimir N. Oleynik"
parent
27421a1878
commit
a8c23aa795
139
coreutils/ls.c
139
coreutils/ls.c
@ -83,15 +83,15 @@ enum {
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/* 51306 lrwxrwxrwx 1 root root 2 May 11 01:43 /bin/view -> vi* */
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/* what file information will be listed */
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#define LIST_INO (1U<<0)
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#define LIST_BLOCKS (1U<<1)
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#define LIST_INO (1U<<0)
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#define LIST_BLOCKS (1U<<1)
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#define LIST_MODEBITS (1U<<2)
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#define LIST_NLINKS (1U<<3)
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#define LIST_NLINKS (1U<<3)
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#define LIST_ID_NAME (1U<<4)
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#define LIST_ID_NUMERIC (1U<<5)
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#define LIST_CONTEXT (1U<<6)
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#define LIST_SIZE (1U<<7)
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#define LIST_DEV (1U<<8)
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#define LIST_SIZE (1U<<7)
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#define LIST_DEV (1U<<8)
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#define LIST_DATE_TIME (1U<<9)
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#define LIST_FULLTIME (1U<<10)
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#define LIST_FILENAME (1U<<11)
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@ -103,22 +103,22 @@ enum {
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/* what files will be displayed */
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/* TODO -- We may be able to make DISP_NORMAL 0 to save a bit slot. */
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#define DISP_NORMAL (1U<<14) /* show normal filenames */
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#define DISP_NORMAL (1U<<14) /* show normal filenames */
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#define DISP_DIRNAME (1U<<15) /* 2 or more items? label directories */
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#define DISP_HIDDEN (1U<<16) /* show filenames starting with . */
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#define DISP_DOT (1U<<17) /* show . and .. */
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#define DISP_NOLIST (1U<<18) /* show directory as itself, not contents */
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#define DISP_HIDDEN (1U<<16) /* show filenames starting with . */
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#define DISP_DOT (1U<<17) /* show . and .. */
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#define DISP_NOLIST (1U<<18) /* show directory as itself, not contents */
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#define DISP_RECURSIVE (1U<<19) /* show directory and everything below it */
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#define DISP_ROWS (1U<<20) /* print across rows */
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#define DISP_ROWS (1U<<20) /* print across rows */
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#define DISP_MASK (((DISP_ROWS << 1) - 1) & ~(DISP_NORMAL - 1))
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#ifdef CONFIG_FEATURE_LS_SORTFILES
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/* how will the files be sorted */
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#define SORT_ORDER_FORWARD 0 /* sort in reverse order */
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#define SORT_ORDER_FORWARD 0 /* sort in reverse order */
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#define SORT_ORDER_REVERSE (1U<<27) /* sort in reverse order */
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#define SORT_NAME 0 /* sort by file name */
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#define SORT_NAME 0 /* sort by file name */
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#define SORT_SIZE (1U<<28) /* sort by file size */
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#define SORT_ATIME (2U<<28) /* sort by last access time */
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#define SORT_CTIME (3U<<28) /* sort by last change time */
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@ -170,25 +170,25 @@ static int show_color = 0;
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/* long option entry used only for --color, which has no short option
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* equivalent. */
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static int got_color_opt;
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static struct option ls_color_opt[] =
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{
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{"color", optional_argument, &got_color_opt, 1},
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{"color", optional_argument, NULL, 1},
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{NULL, 0, NULL, 0}
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};
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#define COLOR(mode) ("\000\043\043\043\042\000\043\043"\
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"\000\000\044\000\043\000\000\040" [TYPEINDEX(mode)])
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"\000\000\044\000\043\000\000\040" [TYPEINDEX(mode)])
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#define ATTR(mode) ("\00\00\01\00\01\00\01\00"\
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"\00\00\01\00\01\00\00\01" [TYPEINDEX(mode)])
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"\00\00\01\00\01\00\00\01" [TYPEINDEX(mode)])
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#endif
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/*
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* a directory entry and its stat info are stored here
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*/
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struct dnode { /* the basic node */
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char *name; /* the dir entry name */
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char *name; /* the dir entry name */
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char *fullname; /* the dir entry name */
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int allocated;
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struct stat dstat; /* the file stat info */
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#ifdef CONFIG_SELINUX
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security_context_t sid;
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@ -235,8 +235,7 @@ static struct dnode *my_stat(char *fullname, char *name)
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}
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#endif
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rc = stat(fullname, &dstat);
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if(rc)
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{
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if(rc) {
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bb_perror_msg("%s", fullname);
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status = EXIT_FAILURE;
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return 0;
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@ -251,8 +250,7 @@ static struct dnode *my_stat(char *fullname, char *name)
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}
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#endif
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rc = lstat(fullname, &dstat);
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if(rc)
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{
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if(rc) {
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bb_perror_msg("%s", fullname);
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status = EXIT_FAILURE;
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return 0;
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@ -320,11 +318,10 @@ static int count_dirs(struct dnode **dn, int nfiles, int notsubdirs)
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dirs = 0;
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for (i = 0; i < nfiles; i++) {
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if (S_ISDIR(dn[i]->dstat.st_mode)
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&& (notsubdirs
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|| ((dn[i]->name[0] != '.')
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|| (dn[i]->name[1]
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&& (notsubdirs ||
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((dn[i]->name[0] != '.') || (dn[i]->name[1]
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&& ((dn[i]->name[1] != '.')
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|| dn[i]->name[2])))))
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|| dn[i]->name[2])))))
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dirs++;
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}
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return (dirs);
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@ -352,8 +349,7 @@ static struct dnode **dnalloc(int num)
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if (num < 1)
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return (NULL);
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p = (struct dnode **) xcalloc((size_t) num,
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(size_t) (sizeof(struct dnode *)));
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p = (struct dnode **) xcalloc((size_t) num, (size_t) (sizeof(struct dnode *)));
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return (p);
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}
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@ -367,7 +363,8 @@ static void dfree(struct dnode **dnp)
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cur = dnp[0];
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while (cur != NULL) {
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free(cur->fullname); /* free the filename */
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if(cur->allocated)
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free(cur->fullname); /* free the filename */
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next = cur->next;
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free(cur); /* free the dnode */
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cur = next;
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@ -622,6 +619,7 @@ static struct dnode **list_dir(const char *path)
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cur = my_stat(fullname, strrchr(fullname, '/') + 1);
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if (!cur)
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continue;
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cur->allocated = 1;
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cur->next = dn;
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dn = cur;
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nfiles++;
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@ -756,7 +754,7 @@ static int list_single(struct dnode *dn)
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safe_strncpy(context, dn->sid, len);
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freecon(dn->sid);
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}else {
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safe_strncpy(context, "unknown",8);
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safe_strncpy(context, "unknown", 8);
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}
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printf("%-32s ", context);
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column += MAX(33, len);
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@ -951,6 +949,9 @@ static const unsigned opt_flags[] = {
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#endif
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#ifdef CONFIG_SELINUX
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LIST_MODEBITS|LIST_NLINKS|LIST_CONTEXT|LIST_SIZE|LIST_DATE_TIME, /* K */
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#endif
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#ifdef CONFIG_FEATURE_AUTOWIDTH
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0, 0, /* T, w - ignored */
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#endif
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(1U<<31)
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};
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@ -977,6 +978,9 @@ extern int ls_main(int argc, char **argv)
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char *tabstops_str = NULL;
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char *terminal_width_str = NULL;
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#endif
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#ifdef CONFIG_FEATURE_LS_COLOR
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char *color_opt;
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#endif
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all_fmt = LIST_SHORT | DISP_NORMAL | STYLE_AUTO
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#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
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@ -1000,7 +1004,11 @@ extern int ls_main(int argc, char **argv)
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/* process options */
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#ifdef CONFIG_FEATURE_AUTOWIDTH
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opt = bb_getopt_ulflags(argc, argv, ls_options, &tabstops_str, &terminal_width_str);
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opt = bb_getopt_ulflags(argc, argv, ls_options, &tabstops_str, &terminal_width_str
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#ifdef CONFIG_FEATURE_LS_COLOR
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, &color_opt
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#endif
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);
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if (tabstops_str) {
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tabstops = atoi(tabstops_str);
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}
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@ -1008,11 +1016,16 @@ extern int ls_main(int argc, char **argv)
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terminal_width = atoi(terminal_width_str);
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}
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#else
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opt = bb_getopt_ulflags(argc, argv, ls_options);
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opt = bb_getopt_ulflags(argc, argv, ls_options
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#ifdef CONFIG_FEATURE_LS_COLOR
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, &color_opt
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#endif
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);
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#endif
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for (i = 0; opt_flags[i] != (1U<<31); i++) {
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if (opt & (1 << i)) {
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unsigned int flags = opt_flags[i];
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if (flags & LIST_MASK_TRIGGER) {
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all_fmt &= ~LIST_MASK;
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}
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@ -1045,51 +1058,28 @@ extern int ls_main(int argc, char **argv)
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}
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#ifdef CONFIG_FEATURE_LS_COLOR
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if (got_color_opt) {
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/* there is no way for bb_getopt_ulflags() to
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* return us the argument string for long options
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* which don't have a short option equivalent.
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* all we can find out is that the option was
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* present, and we have to rescan to find the
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* argument string.
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*/
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got_color_opt=0;
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optind = 1;
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while ((i = getopt_long (argc, argv, ls_options,
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ls_color_opt, NULL)) >= 0) {
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if (i != 0) continue;
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if (got_color_opt) {
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if (!optarg || strcmp("always", optarg) == 0)
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show_color = 1;
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else if (strcmp("never", optarg) == 0)
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show_color = 0;
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else if (strcmp("auto", optarg) == 0 &&
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isatty(STDOUT_FILENO))
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show_color = 1;
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{
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/* find color bit value - last position for short getopt */
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/* don't break; want to a) pick up repeated
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* --color options, and b) leave optind
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* set correctly when we're done.
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*/
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got_color_opt = 0;
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}
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}
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#if CONFIG_FEATURE_LS_COLOR_IS_DEFAULT
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} else {
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/* if no option set by user, then this config option
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* forces "auto", which is what busybox 1.00 and previous
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* did. however, provide one more "out" for users that
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* don't want color: if LS_COLOR is set, and is null or
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* "none" -- then default coloring to "off".
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*/
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char *p;
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if ((p = getenv ("LS_COLORS")) != NULL &&
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(*p == '\0' || (strcmp(p, "none") == 0))) {
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show_color = 0;
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;
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} else if (isatty(STDOUT_FILENO)) {
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show_color = 1;
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}
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#endif
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if((opt & (1 << i))) { /* next flag after short options */
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if (color_opt == NULL || strcmp("always", color_opt) == 0)
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show_color = 1;
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else if (color_opt != NULL && strcmp("never", color_opt) == 0)
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show_color = 0;
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else if (color_opt != NULL && strcmp("auto", color_opt) == 0 && isatty(STDOUT_FILENO))
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show_color = 1;
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}
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}
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#endif
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@ -1129,14 +1119,12 @@ extern int ls_main(int argc, char **argv)
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*/
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ac = argc - optind; /* how many cmd line args are left */
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if (ac < 1) {
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av = (char **) xcalloc((size_t) 1, (size_t) (sizeof(char *)));
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av[0] = bb_xstrdup(".");
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static const char * const dotdir[] = { "." };
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av = (char **) dotdir;
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ac = 1;
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} else {
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av = (char **) xcalloc((size_t) ac, (size_t) (sizeof(char *)));
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for (oi = 0; oi < ac; oi++) {
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av[oi] = argv[optind++]; /* copy pointer to real cmd line arg */
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}
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av = argv + optind;
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}
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/* now, everything is in the av array */
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@ -1146,11 +1134,10 @@ extern int ls_main(int argc, char **argv)
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/* stuff the command line file names into an dnode array */
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dn = NULL;
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for (oi = 0; oi < ac; oi++) {
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char *fullname = bb_xstrdup(av[oi]);
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cur = my_stat(fullname, fullname);
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cur = my_stat(av[oi], av[oi]);
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if (!cur)
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continue;
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cur->allocated = 0;
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cur->next = dn;
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dn = cur;
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nfiles++;
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