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	dirmodefmt.c - 9base - revived minimalist port of Plan 9 userland to Unix
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	---
	dirmodefmt.c (969B)
	---
	1 #include <u.h>
	2 #include <libc.h>
	3
	4 static char *modes[] =
	5 {
	6 "---",
	7 "--x",
	8 "-w-",
	9 "-wx",
	10 "r--",
	11 "r-x",
	12 "rw-",
	13 "rwx",
	14 };
	15
	16 static void
	17 rwx(long m, char *s)
	18 {
	19 strncpy(s, modes[m], 3);
	20 }
	21
	22 int
	23 dirmodefmt(Fmt *f)
	24 {
	25 static char buf[16];
	26 ulong m;
	27
	28 m = va_arg(f->args, ulong);
	29
	30 if(m & DMDIR)
	31 buf[0]='d';
	32 else if(m & DMAPPEND)
	33 buf[0]='a';
	34 else if(m & DMAUTH)
	35 buf[0]='A';
	36 else if(m & DMDEVICE)
	37 buf[0] = 'D';
	38 else if(m & DMSOCKET)
	39 buf[0] = 'S';
	40 else if(m & DMNAMEDPIPE)
	41 buf[0] = 'P';
	42 else
	43 buf[0]='-';
	44
	45 /*
	46 * It's a little weird to have DMSYMLINK conflict with DMEXCL
	47 * here, but since you can have symlinks to any of the above
	48 * things, this is a better display. Especially since we don't …
	49 * DMEXCL on any of the supported systems.
	50 */
	51 if(m & DMEXCL)
	52 buf[1]='l';
	53 else if(m & DMSYMLINK)
	54 buf[1] = 'L';
	55 else
	56 buf[1]='-';
	57 rwx((m>>6)&7, buf+2);
	58 rwx((m>>3)&7, buf+5);
	59 rwx((m>>0)&7, buf+8);
	60 buf[11] = 0;
	61 return fmtstrcpy(f, buf);
	62 }