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Implemented du -s
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3cd5d2541f
commit
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@ -32,17 +32,35 @@
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#include <sys/stat.h>
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#endif
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static const char du_usage[] =
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"Usage: du [OPTION]... [FILE]...\n";
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typedef void (Display)(size_t, char *);
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static const char du_usage[] =
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"Usage: du [OPTION]... [FILE]...\n\n"
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"\t-s\tdisplay only a total for each argument\n"
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;
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static int du_depth = 0;
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static Display *print;
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static void
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print(size_t size, char *filename)
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print_null(size_t size, char *filename) { }
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static void
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print_normal(size_t size, char *filename)
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{
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fprintf(stdout, "%-7d %s\n", (size >> 1), filename);
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}
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static void
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print_summary(size_t size, char *filename)
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{
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if (du_depth == 1) {
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print_normal(size, filename);
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}
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}
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/* tiny recursive du */
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static size_t
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du(char *filename)
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@ -54,6 +72,8 @@ du(char *filename)
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fprintf(stdout, "du: %s: %s\n", filename, strerror(errno));
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return 0;
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}
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du_depth++;
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sum = statbuf.st_blocks;
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if (S_ISDIR(statbuf.st_mode)) {
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@ -76,6 +96,7 @@ du(char *filename)
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closedir(dir);
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print(sum, filename);
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}
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du_depth--;
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return sum;
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}
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@ -85,12 +106,16 @@ du_main(int argc, char **argv)
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int i;
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char opt;
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/* default behaviour */
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print = print_normal;
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/* parse argv[] */
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for (i = 1; i < argc; i++) {
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if (argv[i][0] == '-') {
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opt = argv[i][1];
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switch (opt) {
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case 's':
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print = print_summary;
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break;
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case 'h':
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usage(du_usage);
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@ -110,12 +135,12 @@ du_main(int argc, char **argv)
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} else {
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int sum;
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for ( ; i < argc; i++) {
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sum = du(argv[i]) >> 1;
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if (sum) printf("%-7d %s\n", sum, argv[i]);
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sum = du(argv[i]);
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if (sum) { print_normal(sum, argv[i]); }
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}
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}
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exit(0);
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}
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/* $Id: du.c,v 1.5 1999/12/10 15:23:47 beppu Exp $ */
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/* $Id: du.c,v 1.6 1999/12/15 18:52:17 beppu Exp $ */
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39
du.c
39
du.c
@ -32,17 +32,35 @@
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#include <sys/stat.h>
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#endif
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static const char du_usage[] =
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"Usage: du [OPTION]... [FILE]...\n";
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typedef void (Display)(size_t, char *);
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static const char du_usage[] =
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"Usage: du [OPTION]... [FILE]...\n\n"
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"\t-s\tdisplay only a total for each argument\n"
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;
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static int du_depth = 0;
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static Display *print;
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static void
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print(size_t size, char *filename)
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print_null(size_t size, char *filename) { }
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static void
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print_normal(size_t size, char *filename)
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{
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fprintf(stdout, "%-7d %s\n", (size >> 1), filename);
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}
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static void
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print_summary(size_t size, char *filename)
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{
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if (du_depth == 1) {
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print_normal(size, filename);
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}
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}
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/* tiny recursive du */
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static size_t
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du(char *filename)
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@ -54,6 +72,8 @@ du(char *filename)
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fprintf(stdout, "du: %s: %s\n", filename, strerror(errno));
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return 0;
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}
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du_depth++;
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sum = statbuf.st_blocks;
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if (S_ISDIR(statbuf.st_mode)) {
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@ -76,6 +96,7 @@ du(char *filename)
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closedir(dir);
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print(sum, filename);
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}
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du_depth--;
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return sum;
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}
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@ -85,12 +106,16 @@ du_main(int argc, char **argv)
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int i;
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char opt;
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/* default behaviour */
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print = print_normal;
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/* parse argv[] */
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for (i = 1; i < argc; i++) {
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if (argv[i][0] == '-') {
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opt = argv[i][1];
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switch (opt) {
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case 's':
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print = print_summary;
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break;
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case 'h':
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usage(du_usage);
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@ -110,12 +135,12 @@ du_main(int argc, char **argv)
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} else {
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int sum;
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for ( ; i < argc; i++) {
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sum = du(argv[i]) >> 1;
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if (sum) printf("%-7d %s\n", sum, argv[i]);
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sum = du(argv[i]);
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if (sum) { print_normal(sum, argv[i]); }
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}
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}
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exit(0);
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}
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/* $Id: du.c,v 1.5 1999/12/10 15:23:47 beppu Exp $ */
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/* $Id: du.c,v 1.6 1999/12/15 18:52:17 beppu Exp $ */
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