FreeCalypso > hg > freecalypso-tools
view target-utils/libtiffs/basicfind.c @ 921:74d284add54d
fc-fsio: guard against bogus readdir results from the target
If the FFS being operated on contains SE K2x0 extended filenames,
readdir will return strings that are bad for printing. We need to
guard against this possibility, and also against possible other
bogosity that could be sent by other alien firmwares.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 31 Dec 2022 22:55:23 +0000 |
parents | 87cb03b35f77 |
children |
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line source
#include <sys/types.h> #include "types.h" #include "struct.h" #include "globals.h" #include "macros.h" extern char *index(); static find_named_child(start, seekname) char *seekname; { int ino; struct inode *irec; for (ino = start; ino != 0xFFFF; ino = irec->sibling) { irec = tiffs_active_index + ino; if (!irec->type) continue; if (!strcmp(inode_to_dataptr(irec), seekname)) return(ino); } return(0); } tiffs_pathname_to_inode(pathname) char *pathname; { int ino, stat; struct inode *irec; char *cur, *next; stat = tiffs_init(); if (stat < 0) return(stat); cur = pathname; if (*cur == '/') cur++; for (ino = tiffs_root_ino; cur; cur = next) { if (!*cur) break; next = index(cur, '/'); if (next == cur) { printf("malformed pathname: multiple adjacent slashes\n"); return(-1); } if (next) *next++ = '\0'; irec = tiffs_active_index + ino; if (irec->type != OBJTYPE_DIR) { printf("Error: non-terminal non-directory\n"); if (next) next[-1] = '/'; return(-1); } ino = find_named_child(irec->descend, cur); if (next) next[-1] = '/'; if (!ino) { printf("Error: pathname component not found\n"); return(-1); } } return(ino); }