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Fix aboriginal bug in _tarAddFile(): when complaining that the amount of data

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read from the temp file didn't match the file length reported by ftello(),
the wrong variable's value was printed, and so the message made no sense.
Clean up a couple other coding infelicities while at it.
This commit is contained in:
Tom Lane 2007-08-29 16:31:36 +00:00
parent c7b6593042
commit 3b5f5d9873
1 changed files with 13 additions and 11 deletions
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24
src/bin/pg_dump/pg_backup_tar.c
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@ -16,7 +16,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_tar.c,v 1.59 2007/08/06 01:38:15 tgl Exp $
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_tar.c,v 1.60 2007/08/29 16:31:36 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1059,36 +1059,38 @@ _tarAddFile(ArchiveHandle *AH, TAR_MEMBER *th)
*/
fseeko(tmp, 0, SEEK_END);
th->fileLen = ftello(tmp);
fseeko(tmp, 0, SEEK_SET);
/*
* Some compilers with throw a warning knowing this test can never be true
* because pgoff_t can't exceed the compared maximum.
* Some compilers will throw a warning knowing this test can never be true
* because pgoff_t can't exceed the compared maximum on their platform.
*/
if (th->fileLen > MAX_TAR_MEMBER_FILELEN)
die_horribly(AH, modulename, "archive member too large for tar format\n");
fseeko(tmp, 0, SEEK_SET);
_tarWriteHeader(th);
while ((cnt = fread(&buf[0], 1, 32767, tmp)) > 0)
while ((cnt = fread(buf, 1, sizeof(buf), tmp)) > 0)
{
res = fwrite(&buf[0], 1, cnt, th->tarFH);
res = fwrite(buf, 1, cnt, th->tarFH);
if (res != cnt)
die_horribly(AH, modulename,
"could not write to output file: %s\n", strerror(errno));
"could not write to output file: %s\n",
strerror(errno));
len += res;
}
if (fclose(tmp) != 0) /* This *should* delete it... */
die_horribly(AH, modulename, "could not close temporary file: %s\n", strerror(errno));
die_horribly(AH, modulename, "could not close temporary file: %s\n",
strerror(errno));
if (len != th->fileLen)
{
char buf1[100],
buf2[100];
char buf1[32],
buf2[32];
snprintf(buf1, sizeof(buf1), INT64_FORMAT, (int64) len);
snprintf(buf2, sizeof(buf2), INT64_FORMAT, (int64) th->pos);
snprintf(buf2, sizeof(buf2), INT64_FORMAT, (int64) th->fileLen);
die_horribly(AH, modulename, "actual file length (%s) does not match expected (%s)\n",
buf1, buf2);
}