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Implemented du -s

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This commit is contained in:
John Beppu 1999-12-15 18:52:17 +00:00
parent 3cd5d2541f
commit e1618e42a8
2 changed files with 64 additions and 14 deletions
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39
coreutils/du.c
View File

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

39
du.c
View File

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