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disable --max in 32-bit mode

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Yann Collet
2025-02-09 23:14:16 -08:00
parent 1603cbe83e
commit 468e1453a5
2 changed files with 22 additions and 13 deletions
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4
programs/zstd.1.md
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@ -163,8 +163,8 @@ the last one takes effect.
`--memory=windowSize` needs to be passed to the decompressor.
* `--max`:
set advanced parameters to maximum compression.
warning: this setting uses a lot of resources and is very slow.
note that the amount of resource required is typically too large for 32-bit.
warning: this setting is very slow and uses a lot of resources.
It's inappropriate for 32-bit mode and therefore disabled in this mode.
* `-D DICT`:
use `DICT` as Dictionary to compress or decompress FILE(s)
* `--patch-from FILE`:

11
programs/zstdcli.c
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@ -973,7 +973,6 @@ int main(int argCount, const char* argv[])
if (!strcmp(argument, "--quiet")) { g_displayLevel--; continue; }
if (!strcmp(argument, "--stdout")) { forceStdout=1; outFileName=stdoutmark; continue; }
if (!strcmp(argument, "--ultra")) { ultra=1; continue; }
if (!strcmp(argument, "--max")) { ultra=1; ldmFlag = 1; setMaxCompression(&compressionParams); continue; }
if (!strcmp(argument, "--check")) { FIO_setChecksumFlag(prefs, 2); continue; }
if (!strcmp(argument, "--no-check")) { FIO_setChecksumFlag(prefs, 0); continue; }
if (!strcmp(argument, "--sparse")) { FIO_setSparseWrite(prefs, 2); continue; }
@ -1024,6 +1023,16 @@ int main(int argCount, const char* argv[])
if (!strcmp(argument, "--fake-stderr-is-console")) { UTIL_fakeStderrIsConsole(); continue; }
if (!strcmp(argument, "--trace-file-stat")) { UTIL_traceFileStat(); continue; }
if (!strcmp(argument, "--max")) {
if (sizeof(void*)==4) {
DISPLAYLEVEL(2, "--max is incompatible with 32-bit mode \n");
badUsage(programName, originalArgument);
CLEAN_RETURN(1);
}
ultra=1; ldmFlag = 1; setMaxCompression(&compressionParams);
continue;
}
/* long commands with arguments */
#ifndef ZSTD_NODICT
if (longCommandWArg(&argument, "--train-cover")) {