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Date: Sun, 18 Mar 2012 15:52:44 -0400
From: Theodore Ts'o <tytso@....edu>
To: Ext4 Developers List <linux-ext4@...r.kernel.org>
Cc: Theodore Ts'o <tytso@....edu>
Subject: [PATCH 1/5] e2fsck: add support for field widths in messages using %-expansion
This will come in handy when printing checksums, some of which are
32-bit and some of which are 16-bit.
Signed-off-by: "Theodore Ts'o" <tytso@....edu>
---
e2fsck/message.c | 60 ++++++++++++++++++++++++++++++-----------------------
1 files changed, 34 insertions(+), 26 deletions(-)
diff --git a/e2fsck/message.c b/e2fsck/message.c
index 4dab1a4..1a91044 100644
--- a/e2fsck/message.c
+++ b/e2fsck/message.c
@@ -397,7 +397,7 @@ static _INLINE_ void expand_dirent_expression(ext2_filsys fs, char ch,
}
static _INLINE_ void expand_percent_expression(ext2_filsys fs, char ch,
- int *first,
+ int width, int *first,
struct problem_context *ctx)
{
e2fsck_t e2fsck_ctx = fs ? (e2fsck_t) fs->priv_data : NULL;
@@ -412,9 +412,9 @@ static _INLINE_ void expand_percent_expression(ext2_filsys fs, char ch,
break;
case 'b':
#ifdef EXT2_NO_64_TYPE
- printf("%u", (unsigned long) ctx->blk);
+ printf("%*u", width, (unsigned long) ctx->blk);
#else
- printf("%llu", (unsigned long long) ctx->blk);
+ printf("%*llu", width, (unsigned long long) ctx->blk);
#endif
break;
case 'B':
@@ -441,31 +441,31 @@ static _INLINE_ void expand_percent_expression(ext2_filsys fs, char ch,
break;
case 'c':
#ifdef EXT2_NO_64_TYPE
- printf("%u", (unsigned long) ctx->blk2);
+ printf("%*u", width, (unsigned long) ctx->blk2);
#else
- printf("%llu", (unsigned long long) ctx->blk2);
+ printf("%*llu", width, (unsigned long long) ctx->blk2);
#endif
break;
case 'd':
- printf("%u", ctx->dir);
+ printf("%*u", width, ctx->dir);
break;
case 'g':
- printf("%d", ctx->group);
+ printf("%*d", width, ctx->group);
break;
case 'i':
- printf("%u", ctx->ino);
+ printf("%*u", width, ctx->ino);
break;
case 'j':
- printf("%u", ctx->ino2);
+ printf("%*u", width, ctx->ino2);
break;
case 'm':
- printf("%s", error_message(ctx->errcode));
+ printf("%*s", width, error_message(ctx->errcode));
break;
case 'N':
#ifdef EXT2_NO_64_TYPE
- printf("%u", ctx->num);
+ printf("%*u", width, ctx->num);
#else
- printf("%llu", (long long)ctx->num);
+ printf("%*llu", width, (long long)ctx->num);
#endif
break;
case 'p':
@@ -483,16 +483,16 @@ static _INLINE_ void expand_percent_expression(ext2_filsys fs, char ch,
break;
case 'r':
#ifdef EXT2_NO_64_TYPE
- printf("%d", ctx->blkcount);
+ printf("%*d", width, ctx->blkcount);
#else
- printf("%lld", (long long) ctx->blkcount);
+ printf("%*lld", width, (long long) ctx->blkcount);
#endif
break;
case 'S':
printf("%u", get_backup_sb(NULL, fs, NULL, NULL));
break;
case 's':
- printf("%s", ctx->str ? ctx->str : "NULL");
+ printf("%*s", width, ctx->str ? ctx->str : "NULL");
break;
case 't':
print_time((time_t) ctx->num);
@@ -502,9 +502,9 @@ static _INLINE_ void expand_percent_expression(ext2_filsys fs, char ch,
break;
case 'X':
#ifdef EXT2_NO_64_TYPE
- printf("0x%x", ctx->num);
+ printf("0x%*x", width, ctx->num);
#else
- printf("0x%llx", (long long)ctx->num);
+ printf("0x%*llx", width, (long long)ctx->num);
#endif
break;
default:
@@ -520,22 +520,30 @@ void print_e2fsck_message(e2fsck_t ctx, const char *msg,
{
ext2_filsys fs = ctx->fs;
const char * cp;
- int i;
+ int i, width;
e2fsck_clear_progbar(ctx);
for (cp = msg; *cp; cp++) {
if (cp[0] == '@') {
cp++;
expand_at_expression(ctx, *cp, pctx, &first, recurse);
- } else if (cp[0] == '%' && cp[1] == 'I') {
- cp += 2;
- expand_inode_expression(fs, *cp, pctx);
- } else if (cp[0] == '%' && cp[1] == 'D') {
- cp += 2;
- expand_dirent_expression(fs, *cp, pctx);
- } else if ((cp[0] == '%')) {
+ } else if (cp[0] == '%') {
cp++;
- expand_percent_expression(fs, *cp, &first, pctx);
+ width = 0;
+ while (isdigit(cp[0])) {
+ width = (width * 10) + cp[0] - '0';
+ cp++;
+ }
+ if (cp[0] == 'I') {
+ cp++;
+ expand_inode_expression(fs, *cp, pctx);
+ } else if (cp[0] == 'D') {
+ cp++;
+ expand_dirent_expression(fs, *cp, pctx);
+ } else {
+ expand_percent_expression(fs, *cp, width,
+ &first, pctx);
+ }
} else {
for (i=0; cp[i]; i++)
if ((cp[i] == '@') || cp[i] == '%')
--
1.7.9.107.g97f9a
--
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