WebSVN – planix.SVN – Blame – /os/branches/feature_tlsv12/sys/src/cmd/auth/asn12rsa.c

Rev	Author	Line No.	Line
2	-	1	`#include <u.h>`
		2	`#include <libc.h>`
		3	`#include <bio.h>`
		4	`#include <mp.h>`
		5	`#include <libsec.h>`
		6
		7	`void`
		8	`usage(void)`
		9	`{`
		10	`fprint(2, "auth/asn12rsa [-t tag] [file]\n");`
		11	`exits("usage");`
		12	`}`
		13
		14	`void`
		15	`main(int argc, char **argv)`
		16	`{`
		17	`char *s;`
		18	`uchar *buf;`
		19	`int fd;`
		20	`long n, tot;`
		21	`char tag, file;`
		22	`RSApriv *key;`
		23
		24	`fmtinstall('B', mpfmt);`
		25
		26	`tag = nil;`
		27	`ARGBEGIN{`
		28	`case 't':`
		29	`tag = EARGF(usage());`
		30	`break;`
		31	`default:`
		32	`usage();`
		33	`}ARGEND`
		34
		35	`if(argc != 0 && argc != 1)`
		36	`usage();`
		37
		38	`if(argc == 1)`
		39	`file = argv[0];`
		40	`else`
		41	`file = "#d/0";`
		42
		43	`if((fd = open(file, OREAD)) < 0)`
		44	`sysfatal("open %s: %r", file);`
		45	`buf = nil;`
		46	`tot = 0;`
		47	`for(;;){`
		48	`buf = realloc(buf, tot+8192);`
		49	`if(buf == nil)`
		50	`sysfatal("realloc: %r");`
		51	`if((n = read(fd, buf+tot, 8192)) < 0)`
		52	`sysfatal("read: %r");`
		53	`if(n == 0)`
		54	`break;`
		55	`tot += n;`
		56	`}`
		57
		58	`key = asn1toRSApriv(buf, tot);`
		59	`if(key == nil)`
		60	`sysfatal("couldn't parse asn1 key");`
		61
		62	`s = smprint("key proto=rsa %s%ssize=%d ek=%B !dk=%B n=%B !p=%B !q=%B !kp=%B !kq=%B !c2=%B\n",`
		63	`tag ? tag : "", tag ? " " : "",`
		64	`mpsignif(key->pub.n), key->pub.ek,`
		65	`key->dk, key->pub.n, key->p, key->q,`
		66	`key->kp, key->kq, key->c2);`
		67	`if(s == nil)`
		68	`sysfatal("smprint: %r");`
		69	`write(1, s, strlen(s));`
		70	`exits(0);`
		71	`}`

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