86 lines
1.6 KiB
C
86 lines
1.6 KiB
C
/* Example of how to use webfs */
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#include <u.h>
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#include <libc.h>
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void
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xfer(int from, int to)
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{
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char buf[12*1024];
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int n;
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while((n = read(from, buf, sizeof buf)) > 0)
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if(write(to, buf, n) < 0)
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sysfatal("write failed: %r");
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if(n < 0)
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sysfatal("read failed: %r");
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}
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void
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usage(void)
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{
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fprint(2, "usage: webfsget [-b baseurl] [-m mtpt] [-p postbody] url\n");
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exits("usage");
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}
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void
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main(int argc, char **argv)
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{
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int conn, ctlfd, fd, n;
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char buf[128], *base, *mtpt, *post, *url;
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mtpt = "/mnt/web";
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post = nil;
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base = nil;
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ARGBEGIN{
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default:
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usage();
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case 'b':
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base = EARGF(usage());
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break;
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case 'm':
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mtpt = EARGF(usage());
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break;
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case 'p':
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post = EARGF(usage());
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break;
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}ARGEND;
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if (argc != 1)
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usage();
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url = argv[0];
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snprint(buf, sizeof buf, "%s/clone", mtpt);
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if((ctlfd = open(buf, ORDWR)) < 0)
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sysfatal("couldn't open %s: %r", buf);
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if((n = read(ctlfd, buf, sizeof buf-1)) < 0)
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sysfatal("reading clone: %r");
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if(n == 0)
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sysfatal("short read on clone");
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buf[n] = '\0';
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conn = atoi(buf);
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if(base)
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if(fprint(ctlfd, "baseurl %s", base) < 0)
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sysfatal("baseurl ctl write: %r");
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if(fprint(ctlfd, "url %s", url) <= 0)
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sysfatal("get ctl write: %r");
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if(post){
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snprint(buf, sizeof buf, "%s/%d/postbody", mtpt, conn);
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if((fd = open(buf, OWRITE)) < 0)
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sysfatal("open %s: %r", buf);
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if(write(fd, post, strlen(post)) < 0)
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sysfatal("post write failed: %r");
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close(fd);
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}
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snprint(buf, sizeof buf, "%s/%d/body", mtpt, conn);
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if((fd = open(buf, OREAD)) < 0)
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sysfatal("open %s: %r", buf);
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xfer(fd, 1);
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exits(nil);
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}
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