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add support for mode override in libdisk/proto, fix some perms and add logfiles to cdproto

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This commit is contained in:
cinap_lenrek 2011-06-08 00:49:45 +00:00
parent 6feb869371
commit 4626ebdbd8
3 changed files with 142 additions and 33 deletions
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102
sys/src/libdisk/proto.c
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@ -33,6 +33,8 @@ struct Name {
typedef struct Opt Opt;
struct Opt {
int level;
long mode;
long mask;
Reprog *skip;
char *uid;
char *gid;
@ -275,12 +277,6 @@ copyfile(Mkaux *mkaux, File *f, Dir *d, int permonly)
d = nd;
d->name = f->elem;
if(d->type != 'M'){
d->uid = "sys";
d->gid = "sys";
xmode = (d->mode >> 6) & 7;
d->mode |= xmode | (xmode << 3);
}
o = mkaux->opt;
if(strcmp(f->uid, "-") != 0)
d->uid = f->uid;
@ -297,7 +293,8 @@ copyfile(Mkaux *mkaux, File *f, Dir *d, int permonly)
warn(mkaux, "inconsistent mode for %s", f->new);
else
d->mode = f->mode;
}
} else if(o && o->mask)
d->mode = (d->mode & ~o->mask) | (o->mode & o->mask);
if(p = strrchr(f->new, '/'))
d->name = p+1;
@ -323,6 +320,92 @@ mkpath(Mkaux *mkaux, char *prefix, char *elem)
return p;
}
static int
parsemode(char *spec, long *pmask, long *pmode)
{
char op, set, *s;
long mode;
long mask;
s = spec;
op = set = 0;
mode = 0;
mask = DMAPPEND | DMEXCL | DMTMP;
if(*s >= '0' && *s <= '7'){
mask = 0666;
mode = strtoul(s, 0, 8);
op = '=';
s = "!";
}
for(; *s && op == 0; s++){
switch(*s){
case 'a':
mask |= 0666;
break;
case 'u':
mask |= 0600;
break;
case 'g':
mask |= 060;
break;
case 'o':
mask |= 06;
break;
case '-':
case '+':
case '=':
op = *s;
break;
default:
return 0;
}
}
if(s == spec)
mask |= 0666;
for(; *s; s++){
switch(*s){
case 'r':
mode |= 0444;
break;
case 'w':
mode |= 0222;
break;
case 'x':
mode |= 0111;
break;
case 'a':
mode |= DMAPPEND;
break;
case 'l':
mode |= DMEXCL;
break;
case 't':
mode |= DMTMP;
break;
case '!':
set = 1;
break;
default:
return 0;
}
}
if(op == '+' || op == '-')
mask &= mode;
if(op == '-')
mode = ~mode;
if(set)
*pmask = 0;
*pmask |= mask;
*pmode = (*pmode & ~mask) | (mode & mask);
return 1;
}
static void
setopt(Mkaux *mkaux, char *key, char *val)
{
@ -354,6 +437,11 @@ setopt(Mkaux *mkaux, char *key, char *val)
} else if(strcmp(key, "gid") == 0){
free(o->gid);
o->gid = *val ? estrdup(mkaux, val) : nil;
} else if(strcmp(key, "mode") == 0){
if(!parsemode(val, &o->mask, &o->mode))
warn(mkaux, "bad mode specification %s", val);
} else {
warn(mkaux, "bad option %s=%s", key, val);
}
}