* (adapted from example in gnu wc.c)
*
* echo hello > /tmp/testfile &&
- * (dd ibs=1k skip=1 count=0 &> /dev/null ; wc -c) < /tmp/testfile
+ * (dd ibs=1k skip=1 count=0 &> /dev/null; wc -c) < /tmp/testfile
*
* for which 'wc -c' should output '0'.
*/
-#include "busybox.h"
+#include "libbb.h"
-#ifdef CONFIG_LOCALE_SUPPORT
-#include <locale.h>
-#include <ctype.h>
-#define isspace_given_isprint(c) isspace(c)
-#else
-#undef isspace
-#undef isprint
-#define isspace(c) ((((c) == ' ') || (((unsigned int)((c) - 9)) <= (13 - 9))))
-#define isprint(c) (((unsigned int)((c) - 0x20)) <= (0x7e - 0x20))
-#define isspace_given_isprint(c) ((c) == ' ')
+#if !ENABLE_LOCALE_SUPPORT
+# undef isprint
+# undef isspace
+# define isprint(c) ((unsigned)((c) - 0x20) <= (0x7e - 0x20))
+# define isspace(c) ((c) == ' ')
#endif
#if ENABLE_FEATURE_WC_LARGE
-#define COUNT_T unsigned long long
-#define COUNT_FMT "llu"
+# define COUNT_T unsigned long long
+# define COUNT_FMT "llu"
#else
-#define COUNT_T unsigned
-#define COUNT_FMT "u"
+# define COUNT_T unsigned
+# define COUNT_FMT "u"
#endif
enum {
WC_LENGTH = 3
};
-int wc_main(int argc, char **argv)
+int wc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int wc_main(int argc UNUSED_PARAM, char **argv)
{
- FILE *fp;
- const char *s, *arg;
- const char *start_fmt = "%9"COUNT_FMT;
+ const char *arg;
+ const char *start_fmt = " %9"COUNT_FMT + 1;
const char *fname_fmt = " %s\n";
COUNT_T *pcounts;
COUNT_T counts[4];
COUNT_T totals[4];
- unsigned linepos;
- unsigned u;
- int num_files = 0;
- int c;
- char status = EXIT_SUCCESS;
- char in_word;
+ int num_files;
+ smallint status = EXIT_SUCCESS;
unsigned print_type;
- print_type = bb_getopt_ulflags(argc, argv, "lwcL");
+ print_type = getopt32(argv, "lwcL");
if (print_type == 0) {
print_type = (1 << WC_LINES) | (1 << WC_WORDS) | (1 << WC_CHARS);
pcounts = counts;
+ num_files = 0;
while ((arg = *argv++) != 0) {
+ FILE *fp;
+ const char *s;
+ unsigned u;
+ unsigned linepos;
+ smallint in_word;
+
++num_files;
- fp = bb_wfopen_input(arg);
+ fp = fopen_or_warn_stdin(arg);
if (!fp) {
status = EXIT_FAILURE;
continue;
in_word = 0;
do {
+ int c;
/* Our -w doesn't match GNU wc exactly... oh well */
++counts[WC_CHARS];
c = getc(fp);
- if (isprint(c)) {
+ if (c == EOF) {
+ if (ferror(fp)) {
+ bb_simple_perror_msg(arg);
+ status = EXIT_FAILURE;
+ }
+ --counts[WC_CHARS];
+ goto DO_EOF; /* Treat an EOF as '\r'. */
+ }
+ if (isprint_asciionly(c)) {
++linepos;
- if (!isspace_given_isprint(c)) {
+ if (!isspace(c)) {
in_word = 1;
continue;
}
- } else if (((unsigned int)(c - 9)) <= 4) {
+ } else if ((unsigned)(c - 9) <= 4) {
/* \t 9
* \n 10
* \v 11
if (c == '\t') {
linepos = (linepos | 7) + 1;
} else { /* '\n', '\r', '\f', or '\v' */
- DO_EOF:
+ DO_EOF:
if (linepos > counts[WC_LENGTH]) {
counts[WC_LENGTH] = linepos;
}
linepos = 0;
}
}
- } else if (c == EOF) {
- if (ferror(fp)) {
- bb_perror_msg("%s", arg);
- status = EXIT_FAILURE;
- }
- --counts[WC_CHARS];
- goto DO_EOF; /* Treat an EOF as '\r'. */
} else {
continue;
}
}
totals[WC_LENGTH] -= counts[WC_LENGTH];
- bb_fclose_nonstdin(fp);
+ fclose_if_not_stdin(fp);
- OUTPUT:
+ OUTPUT:
/* coreutils wc tries hard to print pretty columns
* (saves results for all files, find max col len etc...)
* we won't try that hard, it will bloat us too much */
u = 0;
do {
if (print_type & (1 << u)) {
- bb_printf(s, pcounts[u]);
+ printf(s, pcounts[u]);
s = " %9"COUNT_FMT; /* Ok... restore the leading space. */
}
totals[u] += pcounts[u];
} while (++u < 4);
- bb_printf(fname_fmt, arg);
+ printf(fname_fmt, arg);
}
/* If more than one file was processed, we want the totals. To save some
goto OUTPUT;
}
- bb_fflush_stdout_and_exit(status);
+ fflush_stdout_and_exit(status);
}