FreeCalypso > hg > freecalypso-sw
view rvinterf/etmsync/fsbasics.c @ 701:615fb8847d3f
top level README: typo fix
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Thu, 02 Oct 2014 18:48:12 +0000 |
parents | 3dd74b16df82 |
children | d1333db6385f |
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/* * Basic FFS2 operations */ #include <sys/types.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "etm.h" #include "ffs.h" #include "tmffs2.h" #include "limits.h" #include "ffslimits.h" #include "localtypes.h" #include "localstruct.h" #include "exitcodes.h" extern u_char rvi_msg[]; extern int rvi_msg_len; cmd_ffs2ver() { u_char cmdpkt[4]; int rc; cmdpkt[1] = ETM_FFS2; cmdpkt[2] = TMFFS_VERSION; rc = etm_pkt_exch(cmdpkt, 2); if (rc) return(rc); if (rvi_msg[3]) { printf("FFS2 error %d\n", rvi_msg[3]); return(ERROR_TARGET); } if (rvi_msg_len != 7) { printf("error: FFS2 version response has wrong length\n"); return(ERROR_TARGET); } printf("FFS2 version: %02X.%02X\n", rvi_msg[5], rvi_msg[4]); return(0); } do_opendir(pathname, statertn, countrtn) char *pathname; u_char *statertn; int *countrtn; { u_char cmdpkt[MAX_PKT_TO_TARGET], *dp; int rc, slen; slen = strlen(pathname); if (slen >= TMFFS_STRING_SIZE) { printf("error: pathname arg exceeds string length limit\n"); return(ERROR_USAGE); } dp = cmdpkt + 1; *dp++ = ETM_FFS2; *dp++ = TMFFS_OPENDIR; *dp++ = slen + 1; strcpy(dp, pathname); dp += slen + 1; rc = etm_pkt_exch(cmdpkt, dp - cmdpkt - 1); if (rc) return(rc); if (rvi_msg[3]) { report_ffs_err("opendir", rvi_msg[3]); return(ERROR_TARGET); } if (rvi_msg_len != 11 || rvi_msg[5] != 4) { printf("error: opendir response has wrong length\n"); return(ERROR_TARGET); } *countrtn = rvi_msg[4]; bcopy(rvi_msg + 6, statertn, 4); return(0); } do_readdir(state, namebuf, namebuflen) u_char *state; char *namebuf; { u_char cmdpkt[10]; int rc, slen; cmdpkt[1] = ETM_FFS2; cmdpkt[2] = TMFFS_READDIR; cmdpkt[3] = 4; bcopy(state, cmdpkt+4, 4); cmdpkt[8] = TMFFS_STRING_SIZE; rc = etm_pkt_exch(cmdpkt, 8); if (rc) return(rc); if (rvi_msg[3]) { report_ffs_err("readdir", rvi_msg[3]); return(ERROR_TARGET); } if (rvi_msg_len < 14) { malformed: printf("error: readdir response is malformed\n"); return(ERROR_TARGET); } if (rvi_msg[5] != 4) goto malformed; slen = rvi_msg[10]; if (slen < 2 || rvi_msg_len != slen + 12) goto malformed; if (slen > namebuflen) { printf("error: readdir response exceeds provided buffer\n"); return(ERROR_TARGET); } if (rvi_msg[11 + slen - 1]) /* must be terminating NUL */ goto malformed; bcopy(rvi_msg + 6, state, 4); strcpy(namebuf, rvi_msg + 11); return(0); } cmd_ls(argc, argv) char **argv; { u_char state[4]; char namebuf[256]; int nument, i, rc; rc = do_opendir(argv[1], state, &nument); if (rc) return(rc); if (!nument) { printf("<empty dir>\n"); return(0); } for (i = 0; i < nument; i++) { rc = do_readdir(state, namebuf, sizeof namebuf); if (rc) return(rc); printf("%s\n", namebuf); } return(0); } do_xlstat(pathname, result) char *pathname; struct stat_info *result; { u_char cmdpkt[MAX_PKT_TO_TARGET], *dp; int rc, slen; slen = strlen(pathname); if (slen >= TMFFS_STRING_SIZE) { printf("error: pathname arg exceeds string length limit\n"); return(ERROR_USAGE); } dp = cmdpkt + 1; *dp++ = ETM_FFS2; *dp++ = TMFFS_XLSTAT; *dp++ = slen + 1; strcpy(dp, pathname); dp += slen + 1; rc = etm_pkt_exch(cmdpkt, dp - cmdpkt - 1); if (rc) return(rc); if (rvi_msg[3]) { report_ffs_err("xlstat", rvi_msg[3]); return(ERROR_TARGET); } if (rvi_msg_len != 30 || rvi_msg[4] != 24) { printf("error: xlstat response has wrong length\n"); return(ERROR_TARGET); } result->type = rvi_msg[5]; result->flags = rvi_msg[6]; result->inode = rvi_msg[7] | rvi_msg[8] << 8; result->size = rvi_msg[9] | rvi_msg[10] << 8 | rvi_msg[11] << 16 | rvi_msg[12] << 24; result->space = rvi_msg[13] | rvi_msg[14] << 8 | rvi_msg[15] << 16 | rvi_msg[16] << 24; result->location = rvi_msg[17] | rvi_msg[18] << 8 | rvi_msg[19] << 16 | rvi_msg[20] << 24; result->block = rvi_msg[22]; result->sequence = rvi_msg[23] | rvi_msg[24] << 8; result->updates = rvi_msg[25] | rvi_msg[26] << 8; return(0); } cmd_stat(argc, argv) char **argv; { struct stat_info stat; int rc; char *type; rc = do_xlstat(argv[1], &stat); if (rc) return(rc); switch (stat.type) { case OT_FILE: type = "file"; break; case OT_DIR: type = "directory"; break; case OT_LINK: type = "symlink"; break; default: type = "???"; } printf("Type: %s%s\n", type, stat.flags & OF_READONLY ? ", read-only" : ""); printf("inode %x\n", stat.inode); printf("size %u, space %u\n", stat.size, stat.space); printf("location=%x, block %d\n", stat.location, stat.block); return(0); }