lib/zstd
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use strerror() to generate error message

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as suggested by @terrelln .

also:
- hopefully fixed Windows version
- changed the test, so that it passes on non-english OS stdlib errors.
This commit is contained in:
Yann Collet
2018-12-20 09:16:40 -08:00
parent de4eb06a77
commit 105fa953cb
3 changed files with 23 additions and 18 deletions
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21
programs/fileio.c
View File

@ -389,8 +389,8 @@ static FILE* FIO_openSrcFile(const char* srcFileName)
}
if (!UTIL_fileExist(srcFileName)) {
DISPLAYLEVEL(1, "zstd: %s : No such file or directory (can't stat) -- ignored \n",
srcFileName);
DISPLAYLEVEL(1, "zstd: can't stat %s : %s -- ignored \n",
srcFileName, strerror(errno));
return NULL;
}
@ -425,25 +425,26 @@ static FILE* FIO_openDstFile(const char* srcFileName, const char* dstFileName)
if (srcFileName != NULL) {
stat_t srcStat;
stat_t dstStat;
if (UTIL_getFileStat(srcFileName, &srcStat) && UTIL_getFileStat(dstFileName, &dstStat)) {
if (srcStat.st_dev == dstStat.st_dev && srcStat.st_ino == dstStat.st_ino) {
if ( UTIL_getFileStat(srcFileName, &srcStat)
&& UTIL_getFileStat(dstFileName, &dstStat)
&& srcStat.st_dev == dstStat.st_dev
&& srcStat.st_ino == dstStat.st_ino ) {
DISPLAYLEVEL(1, "zstd: Refusing to open a output file which will overwrite the input file \n");
return NULL;
}
}
}
if (g_sparseFileSupport == 1) {
g_sparseFileSupport = ZSTD_SPARSE_DEFAULT;
}
if (UTIL_isRegularFile(dstFileName)) {
FILE* fCheck;
if (!strcmp(dstFileName, nulmark)) {
EXM_THROW(40, "%s is unexpectedly a regular file", dstFileName);
}
/* Check if destination file already exists */
fCheck = fopen( dstFileName, "rb" );
FILE* const fCheck = fopen( dstFileName, "rb" );
if (!strcmp(dstFileName, nulmark)) {
EXM_THROW(40, "%s is unexpectedly categorized as a regular file",
dstFileName);
}
if (fCheck != NULL) { /* dst file exists, authorization prompt */
fclose(fCheck);
if (!g_overwrite) {

8
programs/util.c
View File

@ -24,8 +24,12 @@ extern "C" {
int UTIL_fileExist(const char* filename)
{
stat_t statbuf;
int const stat_success = stat(filename, &statbuf);
return !stat_success;
#if defined(_MSC_VER)
int const stat_error = _stat64(filename, &statbuf);
#else
int const stat_error = stat(filename, &statbuf);
#endif
return !stat_error;
}
int UTIL_isRegularFile(const char* infilename)

2
tests/playTests.sh
View File

@ -187,7 +187,7 @@ $ECHO "test: overwrite input file (must fail)"
$ZSTD tmp -fo tmp && die "zstd overwrote the input file"
$ZSTD tmp.zst -dfo tmp.zst && die "zstd overwrote the input file"
$ECHO "test: properly detect input file does not exist"
$ZSTD nothere 2>&1 | grep "o such file"
$ZSTD nothere && die "zstd hasn't detected that input file does not exist"
$ECHO "test : file removal"
$ZSTD -f --rm tmp