diff options
Diffstat (limited to 'coreutils/du.c')
| -rw-r--r-- | coreutils/du.c | 185 |
1 files changed, 94 insertions, 91 deletions
diff --git a/coreutils/du.c b/coreutils/du.c index e2cf3f7..7151e3a 100644 --- a/coreutils/du.c +++ b/coreutils/du.c @@ -1,3 +1,4 @@ +/* vi: set sw=4 ts=4: */ /* * Mini du implementation for busybox * @@ -31,119 +32,121 @@ #include <dirent.h> #include <stdio.h> #include <errno.h> -#include <sys/param.h> /* for PATH_MAX */ +#include <sys/param.h> /* for PATH_MAX */ -typedef void (Display)(long, char *); +typedef void (Display) (long, char *); static const char du_usage[] = -"du [OPTION]... [FILE]...\n\n" -"\t-s\tdisplay only a total for each argument\n" -; -static int du_depth = 0; + "du [OPTION]... [FILE]...\n\n" + "\t-s\tdisplay only a total for each argument\n"; -static Display *print; +static int du_depth = 0; -static void -print_normal(long size, char *filename) +static Display *print; + +static void print_normal(long size, char *filename) { - fprintf(stdout, "%-7ld %s\n", size, filename); + fprintf(stdout, "%-7ld %s\n", size, filename); } -static void -print_summary(long size, char *filename) +static void print_summary(long size, char *filename) { - if (du_depth == 1) { - print_normal(size, filename); - } + if (du_depth == 1) { + print_normal(size, filename); + } } /* tiny recursive du */ -static long -du(char *filename) +static long du(char *filename) { - struct stat statbuf; - long sum; - - if ((lstat(filename, &statbuf)) != 0) { - fprintf(stdout, "du: %s: %s\n", filename, strerror(errno)); - return 0; - } - - du_depth++; - sum = statbuf.st_blocks; - - if (S_ISDIR(statbuf.st_mode)) { - DIR *dir; - struct dirent *entry; - - dir = opendir(filename); - if (!dir) { return 0; } - while ((entry = readdir(dir))) { - char newfile[PATH_MAX + 1]; - char *name = entry->d_name; - - if ( (strcmp(name, "..") == 0) - || (strcmp(name, ".") == 0)) - { continue; } - - if (strlen(filename) + strlen(name) + 1 > PATH_MAX) { - fprintf(stderr, name_too_long, "du"); - return 0; - } - sprintf(newfile, "%s/%s", filename, name); - - sum += du(newfile); + struct stat statbuf; + long sum; + + if ((lstat(filename, &statbuf)) != 0) { + fprintf(stdout, "du: %s: %s\n", filename, strerror(errno)); + return 0; } - closedir(dir); - print(sum, filename); - } - du_depth--; - return sum; + + du_depth++; + sum = statbuf.st_blocks; + + if (S_ISDIR(statbuf.st_mode)) { + DIR *dir; + struct dirent *entry; + + dir = opendir(filename); + if (!dir) { + return 0; + } + while ((entry = readdir(dir))) { + char newfile[PATH_MAX + 1]; + char *name = entry->d_name; + + if ((strcmp(name, "..") == 0) + || (strcmp(name, ".") == 0)) { + continue; + } + + if (strlen(filename) + strlen(name) + 1 > PATH_MAX) { + fprintf(stderr, name_too_long, "du"); + return 0; + } + sprintf(newfile, "%s/%s", filename, name); + + sum += du(newfile); + } + closedir(dir); + print(sum, filename); + } + du_depth--; + return sum; } -int -du_main(int argc, char **argv) +int 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); - break; - default: - fprintf(stderr, "du: invalid option -- %c\n", opt); - usage(du_usage); - } - } else { - break; + 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); + break; + default: + fprintf(stderr, "du: invalid option -- %c\n", opt); + usage(du_usage); + } + } else { + break; + } } - } - /* go through remaining args (if any) */ - if (i >= argc) { - du("."); - } else { - long sum; - for ( ; i < argc; i++) { - sum = du(argv[i]); - if ((sum) && (isDirectory(argv[i], FALSE))) { print_normal(sum, argv[i]); } + /* go through remaining args (if any) */ + if (i >= argc) { + du("."); + } else { + long sum; + + for (; i < argc; i++) { + sum = du(argv[i]); + if ((sum) && (isDirectory(argv[i], FALSE))) { + print_normal(sum, argv[i]); + } + } } - } - exit(0); + exit(0); } -/* $Id: du.c,v 1.10 2000/02/07 05:29:42 erik Exp $ */ +/* $Id: du.c,v 1.11 2000/02/08 19:58:47 erik Exp $ */ |