67 lines
1.1 KiB
C
67 lines
1.1 KiB
C
#include <u.h>
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#include <libc.h>
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#include <bio.h>
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void
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Bpass(Biobuf *bin, Biobuf *bout, int n)
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{
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char buf[8192];
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int m;
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while(n > 0) {
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m = sizeof buf;
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if(m > n)
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m = n;
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m = Bread(bin, buf, m);
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if(m <= 0) {
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fprint(2, "corrupt archive\n");
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exits("notdone");
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}
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Bwrite(bout, buf, m);
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n -= m;
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}
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assert(n == 0);
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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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char *p, *f[10];
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Biobuf bin, bout;
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int nf;
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ulong d, size;
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if(argc != 2) {
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fprint(2, "usage: cat mkfs-archive | touchfs date (in seconds)\n");
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exits("usage");
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}
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d = strtoul(argv[1], 0, 0);
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quotefmtinstall();
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Binit(&bin, 0, OREAD);
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Binit(&bout, 1, OWRITE);
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while(p = Brdline(&bin, '\n')) {
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p[Blinelen(&bin)-1] = '\0';
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if(strcmp(p, "end of archive") == 0) {
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Bprint(&bout, "end of archive\n");
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exits(0);
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}
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nf = tokenize(p, f, nelem(f));
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if(nf != 6) {
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fprint(2, "corrupt archive\n");
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exits("notdone");
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}
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Bprint(&bout, "%q %q %q %q %lud %q\n",
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f[0], f[1], f[2], f[3], d, f[5]);
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size = strtoul(f[5], 0, 0);
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Bpass(&bin, &bout, size);
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}
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fprint(2, "premature end of archive\n");
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exits("notdone");
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}
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