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| author | Michael Paquier <michael@paquier.xyz> | 2022-09-14 14:52:20 +0900 |
|---|---|---|
| committer | Michael Paquier <michael@paquier.xyz> | 2022-09-14 14:52:20 +0900 |
| commit | b447d6075db8041b870ac526525f6873df222db4 (patch) | |
| tree | 7522d93a4ea6a4740e4d4aaaa2d914875f7453f3 /src | |
| parent | d583036d68d6fe2fa7facd63eb6548583094fa96 (diff) | |
| download | postgresql-b447d6075db8041b870ac526525f6873df222db4.tar.gz postgresql-b447d6075db8041b870ac526525f6873df222db4.zip | |
Fix incorrect value for "strategy" with deflateParams() in walmethods.c
The zlib documentation mentions the values supported for the compression
strategy, but this code has been using a hardcoded value of 0 rather
than Z_DEFAULT_STRATEGY. This commit adjusts the code to use
Z_DEFAULT_STRATEGY.
Backpatch down to where this code has been added to ease the backport of
any future patch touching this area.
Reported-by: Tom Lane
Discussion: https://postgr.es/m/1400032.1662217889@sss.pgh.pa.us
Backpatch-through: 10
Diffstat (limited to 'src')
| -rw-r--r-- | src/bin/pg_basebackup/walmethods.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/bin/pg_basebackup/walmethods.c b/src/bin/pg_basebackup/walmethods.c index e90aa0ba377..4d4bc63fbe7 100644 --- a/src/bin/pg_basebackup/walmethods.c +++ b/src/bin/pg_basebackup/walmethods.c @@ -904,7 +904,7 @@ tar_open_for_write(const char *pathname, const char *temp_suffix, size_t pad_to_ return NULL; /* Turn off compression for header */ - if (deflateParams(tar_data->zp, 0, 0) != Z_OK) + if (deflateParams(tar_data->zp, 0, Z_DEFAULT_STRATEGY) != Z_OK) { tar_set_error("could not change compression parameters"); return NULL; @@ -944,7 +944,8 @@ tar_open_for_write(const char *pathname, const char *temp_suffix, size_t pad_to_ return NULL; /* Re-enable compression for the rest of the file */ - if (deflateParams(tar_data->zp, tar_data->compression_level, 0) != Z_OK) + if (deflateParams(tar_data->zp, tar_data->compression_level, + Z_DEFAULT_STRATEGY) != Z_OK) { tar_set_error("could not change compression parameters"); return NULL; @@ -1162,7 +1163,7 @@ tar_close(Walfile f, WalCloseMethod method) else if (tar_data->compression_algorithm == PG_COMPRESSION_GZIP) { /* Turn off compression */ - if (deflateParams(tar_data->zp, 0, 0) != Z_OK) + if (deflateParams(tar_data->zp, 0, Z_DEFAULT_STRATEGY) != Z_OK) { tar_set_error("could not change compression parameters"); return -1; @@ -1174,7 +1175,8 @@ tar_close(Walfile f, WalCloseMethod method) return -1; /* Turn compression back on */ - if (deflateParams(tar_data->zp, tar_data->compression_level, 0) != Z_OK) + if (deflateParams(tar_data->zp, tar_data->compression_level, + Z_DEFAULT_STRATEGY) != Z_OK) { tar_set_error("could not change compression parameters"); return -1; |