bound on the size to display a
file/dir */
+int ignore_protected_files = 0; /* Should we simply ignore files or
+ directories which are protected
+ ? */
+
/********************************************************************/
/* malloc with error checking. */
void *safe_malloc(size_t n) {
void *p = malloc(n);
if (!p && n != 0) {
- fprintf(stderr, "Can not allocate memory: %s\n", strerror(errno));
+ fprintf(stderr,
+ "dus: Can not allocate memory: %s\n",
+ strerror(errno));
exit(EXIT_FAILURE);
}
return p;
result = 0;
if(lstat(name, &dummy) != 0) {
- fprintf(stderr, "Can not stat %s: %s\n", name, strerror(errno));
+ fprintf(stderr,
+ "dus: Can not stat %s: %s\n",
+ name, strerror(errno));
exit(EXIT_FAILURE);
}
}
closedir(dir);
} else {
- fprintf(stderr, "Can not open directory %s: %s\n", name, strerror(errno));
- exit(EXIT_FAILURE);
+ if(!(errno == EACCES && ignore_protected_files)) {
+ fprintf(stderr,
+ "dus: Can not open directory %s: %s\n",
+ name, strerror(errno));
+ exit(EXIT_FAILURE);
+ }
}
} else if(S_ISREG(dummy.st_mode)) {
result += dummy.st_size;
for(c = string; *c; c++) {
if(*c >= '0' && *c <= '9') {
partial_total = 10 * partial_total + ((int) (*c - '0'));
+ } else if(*c == 'B' || *c == 'b') {
+ total += partial_total;
+ partial_total = 0;
} else if(*c == 'K' || *c == 'k') {
total += partial_total * 1024;
partial_total = 0;
total += partial_total * 1024 * 1024 * 1024;
partial_total = 0;
} else {
- fprintf(stderr, "Syntax error in %s\n", string);
+ fprintf(stderr,
+ "dus: Syntax error in size specification `%s'\n",
+ string);
+ exit(EXIT_FAILURE);
}
}
+
+ total += partial_total;
+
return total;
}
}
closedir(dir);
} else {
- fprintf(stderr, "Can not open directory %s: %s\n", name, strerror(errno));
+ fprintf(stderr,
+ "dus: Can not open directory %s: %s\n",
+ name, strerror(errno));
exit (EXIT_FAILURE);
}
return head;
b = buffer;
do {
if(b >= buffer + buffer_size) {
- fprintf(stderr, "Buffer overflow in raw_print (hu?!).\n");
+ fprintf(stderr,
+ "dus: Buffer overflow in raw_print (hu?!).\n");
exit(EXIT_FAILURE);
}
*(b++) = size%10 + '0';
fprintf(out, "Lists files and directories according to their size. The sizes are computed by summing recursively exact file sizes through directories. If a given directory has its name appended with '/', it is not listed, but the elements it contains are. If no files or directories are provided as arguments, the current directory is used as default.\n");
fprintf(out, "\n");
/* 01234567890123456789012345678901234567890123456789012345678901234567890123456789*/
+ fprintf(out, " -h, --help show this help.\n");
+ fprintf(out, " -v, --version prints the version number and exit\n");
fprintf(out, " -d, --ignore-dots ignore files and directories starting with a '.'\n");
+ fprintf(out, " -i, --ignore-protected ignore files and directories for which we do not\n");
+ fprintf(out, " have permission\n");
fprintf(out, " -f, --fancy display size with float values and K, M and G\n");
fprintf(out, " units.\n");
fprintf(out, " -r, --reverse-order reverse the sorting order.\n");
fprintf(out, " if the stdout is not a tty.\n");
fprintf(out, " -l <lines>, --nb-lines <lines>\n");
fprintf(out, " same as -c for number of lines.\n");
- fprintf(out, " -h, --help show this help.\n");
fprintf(out, " -m <size>, --size-min <size>\n");
- fprintf(out, " set the listed entries minimum size.\n");
+ fprintf(out, " set the listed entries minimum size. The size\n");
+ fprintf(out, " can be specified using the G, M, K, and B units.\n");
fprintf(out, "\n");
fprintf(out, "Report bugs and comments to <francois@fleuret.org>.\n");
}
/**********************************************************************/
static struct option long_options[] = {
+ { "version", no_argument, 0, 'v' },
{ "ignore-dots", no_argument, 0, 'd' },
+ { "ignore-protected", no_argument, 0, 'i' },
{ "reverse-order", no_argument, 0, 'r' },
{ "show-top", no_argument, 0, 't' },
{ "help", no_argument, 0, 'h' },
setlocale (LC_ALL, "");
- while ((c = getopt_long(argc, argv, "dfrtl:c:m:hd",
+ while ((c = getopt_long(argc, argv, "ivdfrtl:c:m:hd",
long_options, NULL)) != -1) {
switch (c) {
+ case 'v':
+ printf("dus version %s (%s)\n", VERSION_NUMBER, UNAME);
+ exit(EXIT_SUCCESS);
+ break;
+
case 'd':
ignore_dotfiles = 1;
break;
+ case 'i':
+ ignore_protected_files = 1;
+ break;
+
case 'f':
fancy_size_display = 1;
break;