138 lines
2.1 KiB
C
138 lines
2.1 KiB
C
#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <dirent.h>
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#include "get_stat.h"
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#include "make_path.h"
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unsigned int h_flag;
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unsigned int s_flag;
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unsigned int b_flag;
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unsigned int m_flag;
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void print(double size, const char *filename) {
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char c = 0;
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if (h_flag) {
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if (size < 1048576 && !m_flag) {
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size = size / 1024;
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c = 'K';
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}
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else if (size < 1073741824) {
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size = size / 1048576;
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c = 'M';
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}
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else if (size < 1099511627776) {
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size = size / 1073741824;
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c = 'G';
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}
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}
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/* Kb */
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else if (!b_flag)
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size = size / 1024;
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/* Mb */
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else if (m_flag)
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size = size / 1048576;
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printf("%.1f%c %s\n", size, c, filename);
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}
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double du(const char *path, int recurs_flag) {
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double sum = 0;
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struct stat sb;
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if (mu_get_lstat("du", path, &sb))
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return 0;
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if (S_ISDIR(sb.st_mode)) {
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DIR *dp = opendir(path);
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if (!dp) {
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fprintf(stderr, "du: %s\n", strerror(errno));
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return 0;
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}
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struct dirent *ep;
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while ((ep = readdir(dp)) != NULL) {
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if (!strcmp(ep->d_name, ".") || !strcmp(ep->d_name, ".."))
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continue;
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char *new_path = mu_make_path("du", path, ep->d_name);
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if (new_path == NULL)
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return 0;
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sum += du(new_path, 1);
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free(new_path);
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}
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closedir(dp);
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if (!s_flag && recurs_flag) {
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print(sum, path);
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return sum;
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}
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/* Silent mode */
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else if (!recurs_flag)
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print(sum, path);
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}
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else {
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sum = sb.st_size;
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if (!recurs_flag)
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print(sum, path);
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}
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return sum;
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}
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int main(int argc, char **argv) {
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int opt;
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while ((opt = getopt(argc, argv, "hsbm")) != -1) {
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switch (opt) {
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case 'h':
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h_flag = 1;
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break;
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case 's':
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s_flag = 1;
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break;
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case 'b':
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b_flag = 1;
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break;
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case 'm':
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b_flag = 1;
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m_flag = 1;
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break;
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default:
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printf("du [file1 file2...]\n\t[-h Sizes in human readable format]\n\t[-s Display only a total for each argument]\n\t[-b Apparent size] [-m Size in megabyte]\n");
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return 0;
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}
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}
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if (argv[optind] == NULL)
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du(".", 0);
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else {
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argv += optind;
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argc -= optind;
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for (int i = 0; i < argc; i++)
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du(argv[i], 0);
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}
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return 0;
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}
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