FreeCalypso > hg > freecalypso-sw
view rvinterf/etmsync/fspath.c @ 992:a7b0b426f9ca
target-utils: boot ROM UART autodetection revamped
The new implementation should work with both the familiar Calypso C035
boot ROM version found in our regular targets as well as the older
Calypso F741979B version found on the vintage D-Sample board.
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
---|---|
date | Wed, 30 Dec 2015 21:28:41 +0000 |
parents | 3dd74b16df82 |
children |
line wrap: on
line source
/* * FFS pathname manipulation functions */ #include <sys/types.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "ffs.h" #include "limits.h" #include "ffslimits.h" #include "exitcodes.h" validate_ffs_pathname(cand) char *cand; { char *cp; int depth, c; cp = cand; if (*cp++ != '/') { fprintf(stderr, "error: FFS pathnames must be absolute\n"); return(-1); } for (depth = 0; *cp; depth++) { if (*cp == '/') { fprintf(stderr, "error: FFS pathname must not contain duplicate slashes\n"); return(-1); } for (c = 0; *cp && *cp != '/'; cp++) c++; if (c > MAX_FN_COMPONENT) { fprintf(stderr, "error: FFS pathname component is too long\n"); return(-1); } if (!*cp) continue; cp++; if (!*cp) { fprintf(stderr, "error: FFS pathname must not end with a trailing slash\n"); return(-1); } } if (depth > MAX_NAME_DEPTH) { fprintf(stderr, "error: FFS pathname exceeds depth limit\n"); return(-1); } return(depth); } char * pathname_for_ffs_child(parent, childbuf) char *parent, *childbuf; { int depth; char *cp; depth = validate_ffs_pathname(parent); if (depth < 0 || depth >= MAX_NAME_DEPTH) return(0); strcpy(childbuf, parent); cp = index(childbuf, '\0'); if (depth) *cp++ = '/'; return(cp); }