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file: add 7z format

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Joeky 2020-03-30 04:19:30 +08:00 committed by Rob Landley
parent 896fa846b1
commit 3db8e5ea30
1 changed files with 6 additions and 0 deletions
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6
toys/posix/file.c
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@ -264,6 +264,12 @@ static void do_regular_file(int fd, char *name)
xprintf("Zip archive data");
if (ver) xprintf(", requires at least v%d.%d to extract", ver/10, ver%10);
xputc('\n');
} else if (len>9 && strstart(&s, "7z\xbc\xaf\x27\x1c")) {
int ver = toybuf[6]*10+toybuf[7];
xprintf("7-zip archive data");
if (ver) xprintf(", version %d.%d", ver/10, ver%10);
xputc('\n');
} else if (len>4 && strstart(&s, "BZh") && isdigit(*s))
xprintf("bzip2 compressed data, block size = %c00k\n", *s);
else if (len > 31 && peek_be(s, 7) == 0xfd377a585a0000UL)