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[PATCH] git-tar-tree: add get_record()

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Add get_record() which returns a pointer to the next record in the block.
This commit is contained in:
Rene Scharfe
2005-05-06 22:55:42 +02:00
committed by Linus Torvalds
parent cee99d2257
commit a90a6e6a78
1 changed files with 13 additions and 13 deletions
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26
tar-tree.c
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@ -45,6 +45,15 @@ static void write_if_needed(void)
} }
} }
/* acquire the next record from the buffer; user must call write_if_needed() */
static char *get_record(void)
{
char *p = block + offset;
memset(p, 0, RECORDSIZE);
offset += RECORDSIZE;
return p;
}
/* /*
* The end of tar archives is marked by 1024 nul bytes and after that * The end of tar archives is marked by 1024 nul bytes and after that
* follows the rest of the block (if any). * follows the rest of the block (if any).
@ -178,9 +187,7 @@ static void write_extended_header(const char *headerfilename, int is_dir,
if (size > RECORDSIZE) if (size > RECORDSIZE)
die("tar-tree: extended header too big, wtf?"); die("tar-tree: extended header too big, wtf?");
write_header(NULL, 'x', NULL, NULL, headerfilename, 0100600, size); write_header(NULL, 'x', NULL, NULL, headerfilename, 0100600, size);
p = block + offset; p = get_record();
memset(p, 0, RECORDSIZE);
offset += RECORDSIZE;
append_long(&p, size); append_long(&p, size);
append_string(&p, " path="); append_string(&p, " path=");
append_path(&p, is_dir, basepath, prefix, path); append_path(&p, is_dir, basepath, prefix, path);
@ -192,9 +199,7 @@ static void write_global_extended_header(const char *sha1)
{ {
char *p; char *p;
write_header(NULL, 'g', NULL, NULL, "pax_global_header", 0, 52); write_header(NULL, 'g', NULL, NULL, "pax_global_header", 0, 52);
p = block + offset; p = get_record();
memset(p, 0, RECORDSIZE);
offset += RECORDSIZE;
append_long(&p, 52); /* 2 + 9 + 40 + 1 */ append_long(&p, 52); /* 2 + 9 + 40 + 1 */
append_string(&p, " comment="); append_string(&p, " comment=");
append_string(&p, sha1_to_hex(sha1)); append_string(&p, sha1_to_hex(sha1));
@ -223,15 +228,10 @@ static void write_header(const char *sha1, char typeflag, const char *basepath,
write_extended_header(headerfilename, S_ISDIR(mode), basepath, write_extended_header(headerfilename, S_ISDIR(mode), basepath,
prefix, path, namelen); prefix, path, namelen);
header = block + offset; header = get_record();
memset(header, 0, RECORDSIZE);
offset += RECORDSIZE;
sprintf(header, "%s.data", sha1_hex); sprintf(header, "%s.data", sha1_hex);
} else { } else {
header = block + offset; p = header = get_record();
memset(header, 0, RECORDSIZE);
offset += RECORDSIZE;
p = header;
append_path(&p, S_ISDIR(mode), basepath, prefix, path); append_path(&p, S_ISDIR(mode), basepath, prefix, path);
} }