fa325e9b42
Remote whitespace at the ends of lines. Remove blank lines from the ends of files. Change modes on source files so that they are not executable. Signed-off-by: Dan Cross <cross@gajendra.net>
105 lines
1.6 KiB
C
105 lines
1.6 KiB
C
#include "a.h"
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typedef struct DEntry DEntry;
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struct DEntry
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{
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CEntry ce;
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HTTPHeader hdr;
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char *tmpfile;
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int fd;
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};
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static void
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dfree(CEntry *ce)
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{
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DEntry *d;
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d = (DEntry*)ce;
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if(d->tmpfile){
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remove(d->tmpfile);
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free(d->tmpfile);
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close(d->fd);
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}
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}
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static Cache *downloadcache;
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static char*
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parseurl(char *url, char **path)
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{
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char *host, *p;
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int len;
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if(memcmp(url, "http://", 7) != 0)
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return nil;
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p = strchr(url+7, '/');
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if(p == nil)
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p = url+strlen(url);
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len = p - (url+7);
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host = emalloc(len+1);
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memmove(host, url+7, len);
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host[len] = 0;
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if(*p == 0)
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p = "/";
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*path = p;
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return host;
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}
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int
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download(char *url, HTTPHeader *hdr)
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{
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DEntry *d;
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char *host, *path;
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char buf[] = "/var/tmp/smugfs.XXXXXX";
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char *req;
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int fd;
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Fmt fmt;
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if(downloadcache == nil)
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downloadcache = newcache(sizeof(DEntry), 128, dfree);
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host = parseurl(url, &path);
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if(host == nil)
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return -1;
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d = (DEntry*)cachelookup(downloadcache, url, 1);
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if(d->tmpfile){
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free(host);
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*hdr = d->hdr;
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return dup(d->fd, -1);
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}
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d->fd = -1; // paranoia
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if((fd = opentemp(buf, ORDWR|ORCLOSE)) < 0){
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free(host);
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return -1;
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}
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fmtstrinit(&fmt);
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fmtprint(&fmt, "GET %s HTTP/1.0\r\n", path);
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fmtprint(&fmt, "Host: %s\r\n", host);
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fmtprint(&fmt, "User-Agent: " USER_AGENT "\r\n");
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fmtprint(&fmt, "\r\n");
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req = fmtstrflush(&fmt);
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fprint(2, "Get %s\n", url);
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if(httptofile(&http, host, req, hdr, fd) < 0){
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free(host);
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free(req);
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return -1;
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}
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free(host);
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free(req);
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d->tmpfile = estrdup(buf);
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d->fd = dup(fd, -1);
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d->hdr = *hdr;
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return fd;
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}
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void
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downloadflush(char *substr)
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{
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if(downloadcache)
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cacheflush(downloadcache, substr);
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}
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