Apache模块 请大家帮忙分析下哪里有问题？
关于正则匹配的地方详细说下（http://localhost/preview?filename=a.dat）有什么方法把a.dat直接取出来给fn。
#include “httpd.h”
#include “http_config.h”
#include “http_protocol.h”
#include “ap_config.h”
#include “ap_regex.h”
#include “http_log.h”
/* The content handler */
static int preview_handler(request_rec *r)
{
char *fn;// = “/usr/local/httpd-2.3.8/include/httpd.h”;
apr_file_t *f = NULL;
apr_status_t rv;
apr_size_t sz;
ap_regex_t *preg;
const char *regex = “filename=([^\&]*)(.*)”;
int regRet = AP_REG_NOMATCH;
int nmatch = AP_MAX_REG_MATCH;
ap_regmatch_t pmatch[nmatch];
if(strlen(r->args) == 0){
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, NULL,r->server,”No args.”);
return HTTP_INTERNAL_SERVER_ERROR;
}else{
if(ap_regcomp(preg,regex,0) == 0){
regRet = ap_regexec(preg,r->args,nmatch,pmatch,AP_REG_EXTENDED|AP_REG_ICASE);
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, NULL,r->server,”Compile a regular expression. %s”,regex);
}
else{
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, NULL,r->server,” Compile regular expression fail.”);
ap_rputs(“ap_regexec error.”,r);
return DONE;
}
if(regRet == 0){
fn = (char *)calloc(pmatch[1].rm_eo – pmatch[1].rm_so + 1,sizeof(char));
memcpy(fn,r->args+pmatch[1].rm_so,pmatch[1].rm_eo – pmatch[1].rm_so);
rv = apr_file_open(&f,fn,APR_READ|APR_SENDFILE_ENABLED,APR_OS_DEFAULT,r->pool);
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, NULL,r->server,”Get matched parameter : %s”,fn);
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, NULL,r->server,”File open status : %d”,rv);
}else{
ap_rprintf(r,”Reguler Expression is not matched %s.n”,r->args);
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, NULL,r->server,”Reguler Expression is not matched.”);
return DONE;
}
}
if (strcmp(r->handler, “preview”)) {
return DECLINED;
}
r->content_type = “text/html”;
if (!r->header_only){
if(rv == APR_SUCCESS){
apr_finfo_t info;
apr_stat(&info,fn,APR_FINFO_SIZE,r->pool);
apr_size_t size = (apr_size_t)info.size;
if (APR_SUCCESS != ap_send_fd(f, r, 0, size, &sz)) {
return HTTP_INTERNAL_SERVER_ERROR;
}
apr_off_t fpos = sz;
while (1) {
/* flush output first */
