Function FIO_decompressSrcFile

freebsd/contrib/zstd/programs/fileio.c:2548–2582

FIO_decompressSrcFile() : Open `srcFileName`, transfer control to decompressDstFile() @return : 0 : OK 1 : error */

              1 : error
*/
static int FIO_decompressSrcFile(FIO_ctx_t* const fCtx, FIO_prefs_t* const prefs, dRess_t ress, const char* dstFileName, const char* srcFileName)
{
    FILE* srcFile;
    int result;

    if (UTIL_isDirectory(srcFileName)) {
        DISPLAYLEVEL(1, "zstd: %s is a directory -- ignored \n", srcFileName);
        return 1;
    }

    srcFile = FIO_openSrcFile(srcFileName);
    if (srcFile==NULL) return 1;
    ress.srcBufferLoaded = 0;

    result = FIO_decompressDstFile(fCtx, prefs, ress, srcFile, dstFileName, srcFileName);

    /* Close file */
    if (fclose(srcFile)) {
        DISPLAYLEVEL(1, "zstd: %s: %s \n", srcFileName, strerror(errno));  /* error should not happen */
        return 1;
    }
    if ( prefs->removeSrcFile  /* --rm */
      && (result==0)      /* decompression successful */
      && strcmp(srcFileName, stdinmark) ) /* not stdin */ {
        /* We must clear the handler, since after this point calling it would
         * delete both the source and destination files.
         */
        clearHandler();
        if (FIO_removeFile(srcFileName)) {
            /* failed to remove src file */
            DISPLAYLEVEL(1, "zstd: %s: %s \n", srcFileName, strerror(errno));
            return 1;
    }   }
    return result;
}