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e2fsprogs: code shrink

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function                                             old     new   delta
print_e2flags_long                                     -     109    +109
list_attributes                                      248     232     -16
print_e2flags                                        169      47    -122
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 109/-138)          Total: -29 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2021-06-24 09:31:57 +02:00
parent 9468ea06d2
commit 87c40cf4de
3 changed files with 36 additions and 32 deletions
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59
e2fsprogs/e2fs_lib.c
View File

@ -98,36 +98,41 @@ static const char e2attr_flags_lname[] ALIGN1 =
"Verity" "\0"
/* Another trailing NUL is added by compiler */;
void print_e2flags(FILE *f, unsigned flags, unsigned options)
void print_e2flags_long(unsigned flags)
{
const uint32_t *fv;
const char *fn;
int first = 1;
fv = e2attr_flags_value;
fn = e2attr_flags_lname;
do {
if (flags & *fv) {
if (!first)
fputs(", ", stdout);
fputs(fn, stdout);
first = 0;
}
fv++;
fn += strlen(fn) + 1;
} while (*fn);
if (first)
fputs("---", stdout);
}
void print_e2flags(unsigned flags)
{
const uint32_t *fv;
const char *fn;
fv = e2attr_flags_value;
if (options & PFOPT_LONG) {
int first = 1;
fn = e2attr_flags_lname;
do {
if (flags & *fv) {
if (!first)
fputs(", ", f);
fputs(fn, f);
first = 0;
}
fv++;
fn += strlen(fn) + 1;
} while (*fn);
if (first)
fputs("---", f);
} else {
fn = e2attr_flags_sname;
do {
char c = '-';
if (flags & *fv)
c = *fn;
fputc(c, f);
fv++;
fn++;
} while (*fn);
}
fn = e2attr_flags_sname;
do {
char c = '-';
if (flags & *fv)
c = *fn;
putchar(c);
fv++;
fn++;
} while (*fn);
}

5
e2fsprogs/e2fs_lib.h
View File

@ -16,10 +16,9 @@ int iterate_on_dir(const char *dir_name,
int FAST_FUNC (*func)(const char *, struct dirent *, void *),
void *private);
/* Must be 1 for compatibility with 'int long_format'. */
#define PFOPT_LONG 1
/* Print file attributes on an ext2 file system */
void print_e2flags(FILE *f, unsigned flags, unsigned options);
void print_e2flags_long(unsigned flags);
void print_e2flags(unsigned flags);
extern const uint32_t e2attr_flags_value[];
extern const char e2attr_flags_sname[];

4
e2fsprogs/lsattr.c
View File

@ -83,10 +83,10 @@ static void list_attributes(const char *name)
if (option_mask32 & OPT_PF_LONG) {
printf("%-28s ", name);
print_e2flags(stdout, fsflags, PFOPT_LONG);
print_e2flags_long(fsflags);
bb_putchar('\n');
} else {
print_e2flags(stdout, fsflags, 0);
print_e2flags(fsflags);
printf(" %s\n", name);
}