busybox/libbb/print_flags.c

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/* vi: set sw=4 ts=4: */
/* Print string that matches bit masked flags
*
* Copyright (C) 2008 Natanael Copa <natanael.copa@gmail.com>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include <libbb.h>
/* returns a set with the flags not printed */
int FAST_FUNC print_flags_separated(const int *masks, const char *labels, int flags, const char *separator)
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{
const char *need_separator = NULL;
while (*labels) {
if (flags & *masks) {
printf("%s%s",
need_separator ? need_separator : "",
labels);
need_separator = separator;
flags &= ~ *masks;
masks++;
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}
labels += strlen(labels) + 1;
}
return flags;
}
int FAST_FUNC print_flags(const masks_labels_t *ml, int flags)
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{
return print_flags_separated(ml->masks, ml->labels, flags, NULL);
}