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comparison rvinterf/etmsync/symlink.c @ 302:cd5068cf0551

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fc-fsio: symlink command implemented
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sun, 02 Mar 2014 04:34:49 +0000
parents
children 61c68a55f2a2
comparison
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301:8dd522a8d60e 302:cd5068cf0551
1 /*
2 * Commands for experimenting with FFS symlinks
3 */
4
5 #include <sys/types.h>
6 #include <stdio.h>
7 #include <stdlib.h>
8 #include <string.h>
9 #include <strings.h>
10 #include "etm.h"
11 #include "ffs.h"
12 #include "tmffs2.h"
13 #include "limits.h"
14 #include "ffslimits.h"
15 #include "localtypes.h"
16 #include "localstruct.h"
17 #include "exitcodes.h"
18
19 extern u_char rvi_msg[];
20 extern int rvi_msg_len;
21
22 do_symlink(target, realobj)
23 char *target, *realobj;
24 {
25 u_char cmdpkt[MAX_PKT_TO_TARGET], *dp;
26 int rc, targlen, reallen;
27
28 reallen = strlen(realobj);
29 if (reallen >= TMFFS_STRING_SIZE) {
30 printf("error: pathname arg exceeds string length limit\n");
31 return(ERROR_USAGE);
32 }
33 targlen = strlen(target);
34 if (3 + (reallen+2) + (targlen+2) + 1 > MAX_PKT_TO_TARGET) {
35 printf("error: symlink request fails to fit into packet\n");
36 return(ERROR_USAGE);
37 }
38 dp = cmdpkt + 1;
39 *dp++ = ETM_FFS2;
40 *dp++ = TMFFS_SYMLINK;
41 *dp++ = reallen + 1;
42 strcpy(dp, realobj);
43 dp += reallen + 1;
44 *dp++ = targlen + 1;
45 strcpy(dp, target);
46 dp += targlen + 1;
47 rc = etm_pkt_exch(cmdpkt, dp - cmdpkt - 1);
48 if (rc)
49 return(rc);
50 if (rvi_msg_len != 5) {
51 printf("error: TMFFS_SYMLINK response has wrong length\n");
52 return(ERROR_TARGET);
53 }
54 if (rvi_msg[3]) {
55 report_ffs_err("symlink", rvi_msg[3]);
56 return(ERROR_TARGET);
57 }
58 return(0);
59 }
60
61 cmd_symlink(argc, argv)
62 char **argv;
63 {
64 return do_symlink(argv[1], argv[2]);
65 }