ref: 1fe3143e4c43ce2c74e0cfdd70b1bd556bbb9e1b
dir: /sys/src/cmd/aux/flashfs/conv.c/
#include <u.h> #include <libc.h> #include "flashfs.h" int convJ2M(Jrec *j, uchar *buff) { int m, n; switch(j->type) { case FT_create: if(j->mode & (1 << 8)) { if(j->mode & DMDIR) j->type = FT_DCREATE1; else j->type = FT_FCREATE1; } else { if(j->mode & DMDIR) j->type = FT_DCREATE0; else j->type = FT_FCREATE0; } case FT_FCREATE0: case FT_FCREATE1: case FT_DCREATE0: case FT_DCREATE1: n = putc3(&buff[0], j->fnum); goto create; case FT_chmod: if(j->mode & (1 << 8)) j->type = FT_CHMOD1; else j->type = FT_CHMOD0; case FT_CHMOD0: case FT_CHMOD1: n = putc3(&buff[0], j->fnum); buff[n++] = j->mode; return n + putc3(&buff[n], j->mnum); case FT_REMOVE: return putc3(&buff[0], j->fnum); case FT_WRITE: n = putc3(&buff[0], j->fnum); n += putc3(&buff[n], j->mtime); n += putc3(&buff[n], j->offset); return n + putc3(&buff[n], j->size - 1); case FT_AWRITE: n = putc3(&buff[0], j->fnum); n += putc3(&buff[n], j->offset); return n + putc3(&buff[n], j->size - 1); case FT_trunc: if(j->mode & (1 << 8)) j->type = FT_TRUNC1; else j->type = FT_TRUNC0; case FT_TRUNC0: case FT_TRUNC1: n = putc3(&buff[0], j->fnum); n += putc3(&buff[n], j->tnum); goto create; case FT_SUMMARY: case FT_SUMBEG: return putc3(&buff[0], j->seq); case FT_SUMEND: return 0; create: buff[n++] = j->mode; n += putc3(&buff[n], j->mtime); n += putc3(&buff[n], j->parent); m = strlen(j->name); memmove(&buff[n], j->name, m); n += m; buff[n++] = '\0'; return n; } return -1; } int convM2J(Jrec *j, uchar *buff) { int m, n; j->type = buff[0]; switch(j->type) { case FT_FCREATE0: case FT_FCREATE1: case FT_DCREATE0: case FT_DCREATE1: n = 1 + getc3(&buff[1], &j->fnum); j->mode = buff[n++]; switch(j->type) { case FT_FCREATE0: break; case FT_FCREATE1: j->mode |= 1 << 8; break; case FT_DCREATE0: j->mode |= DMDIR; break; case FT_DCREATE1: j->mode |= DMDIR | (1 << 8); break; } j->type = FT_create; goto create; case FT_CHMOD0: case FT_CHMOD1: n = 1 + getc3(&buff[1], &j->fnum); j->mode = buff[n++]; switch(j->type) { case FT_CHMOD0: break; case FT_CHMOD1: j->mode |= 1 << 8; break; } j->type = FT_chmod; return n + getc3(&buff[n], &j->mnum); case FT_REMOVE: return 1 + getc3(&buff[1], &j->fnum); case FT_WRITE: n = 1 + getc3(&buff[1], &j->fnum); n += getc3(&buff[n], &j->mtime); n += getc3(&buff[n], &j->offset); n += getc3(&buff[n], &j->size); j->size++; return n; case FT_AWRITE: n = 1 + getc3(&buff[1], &j->fnum); n += getc3(&buff[n], &j->offset); n += getc3(&buff[n], &j->size); j->size++; return n; case FT_TRUNC0: case FT_TRUNC1: n = 1 + getc3(&buff[1], &j->fnum); n += getc3(&buff[n], &j->tnum); j->mode = buff[n++]; switch(j->type) { case FT_TRUNC0: break; case FT_TRUNC1: j->mode |= 1 << 8; break; } j->type = FT_trunc; goto create; case FT_SUMMARY: case FT_SUMBEG: return 1 + getc3(&buff[1], &j->seq); case FT_SUMEND: return 1; create: n += getc3(&buff[n], &j->mtime); n += getc3(&buff[n], &j->parent); memmove(j->name, &buff[n], MAXNSIZE+1); j->name[MAXNSIZE+1] = '\0'; m = strlen(j->name); if(m > MAXNSIZE) return -1; return n + m + 1; } return -1; } int Jconv(Fmt *fp) { Jrec *j; j = va_arg(fp->args, Jrec *); switch(j->type) { case FT_create: case FT_FCREATE0: case FT_FCREATE1: case FT_DCREATE0: case FT_DCREATE1: return fmtprint(fp, "create f %ld p %ld t %lud m %ulo %s", j->fnum, j->parent, j->mtime, j->mode, j->name); case FT_chmod: case FT_CHMOD0: case FT_CHMOD1: return fmtprint(fp, "chmod f %ld m %ulo #%ld", j->fnum, j->mode, j->mnum); case FT_REMOVE: return fmtprint(fp, "remove f %ld", j->fnum); case FT_WRITE: return fmtprint(fp, "write f %ld z %ld o %ld t %uld", j->fnum, j->size, j->offset, j->mtime); case FT_AWRITE: return fmtprint(fp, "awrite f %ld z %ld o %ld", j->fnum, j->size, j->offset); case FT_trunc: case FT_TRUNC0: case FT_TRUNC1: return fmtprint(fp, "trunc f %ld o %ld p %ld t %ld m %ulo %s", j->fnum, j->tnum, j->parent, j->mtime, j->mode, j->name); case FT_SUMMARY: return fmtprint(fp, "summary %ld", j->seq); case FT_SUMBEG: return fmtprint(fp, "sumbeg %ld", j->seq); case FT_SUMEND: return fmtprint(fp, "end"); default: return fmtprint(fp, "?type %d", j->type); } }