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#include "common.h"
#include "dat.h"
#define deprint(...) /* eprint(__VA_ARGS__) */
extern int dirskip(Dir*, uvlong*);
static int
ismbox(char *path)
{
char buf[512];
int fd, r;
fd = open(path, OREAD);
if(fd == -1)
return 0;
r = 1;
if(read(fd, buf, sizeof buf) < 28 + 5)
r = 0;
else if(strncmp(buf, "From ", 5))
r = 0;
close(fd);
return r;
}
static int
isindex(Dir *d)
{
char *p;
p = strrchr(d->name, '.');
if(!p)
return -1;
if(strcmp(p, ".idx") || strcmp(p, ".imp"))
return 1;
return 0;
}
static int
idiotcheck(char *path, Dir *d, int getindex)
{
uvlong v;
if(d->mode & DMDIR)
return 0;
if(strncmp(d->name, "L.", 2) == 0)
return 0;
if(getindex && isindex(d))
return 0;
if(!dirskip(d, &v) || ismbox(path))
return 0;
return -1;
}
int
vremove(char *buf)
{
deprint("rm %s\n", buf);
return remove(buf);
}
static int
rm(char *dir, int flags, int level)
{
char buf[Pathlen];
int i, n, r, fd, isdir, rflag;
Dir *d;
d = dirstat(dir);
isdir = d->mode & DMDIR;
free(d);
if(!isdir)
return 0;
fd = open(dir, OREAD);
if(fd == -1)
return -1;
n = dirreadall(fd, &d);
close(fd);
r = 0;
rflag = flags & Rrecur;
for(i = 0; i < n; i++){
snprint(buf, sizeof buf, "%s/%s", dir, d[i].name);
if(rflag)
r |= rm(buf, flags, level + 1);
if(idiotcheck(buf, d + i, level + rflag) == -1)
continue;
if(vremove(buf) != 0)
r = -1;
}
free(d);
return r;
}
void
rmidx(char *buf, int flags)
{
char buf2[Pathlen];
snprint(buf2, sizeof buf2, "%s.idx", buf);
vremove(buf2);
if((flags & Rtrunc) == 0){
snprint(buf2, sizeof buf2, "%s.imp", buf);
vremove(buf2);
}
}
char*
localremove(Mailbox *mb, int flags)
{
char *msg, *path;
int r, isdir;
Dir *d;
static char err[2*Pathlen];
path = mb->path;
if((d = dirstat(path)) == 0){
snprint(err, sizeof err, "%s: doesn't exist\n", path);
return 0;
}
isdir = d->mode & DMDIR;
free(d);
msg = "deleting";
if(flags & Rtrunc)
msg = "truncating";
deprint("%s: %s\n", msg, path);
/* must match folder.c:/^openfolder */
r = rm(path, flags, 0);
if((flags & Rtrunc) == 0)
r = vremove(path);
else if(!isdir)
close(r = open(path, OWRITE|OTRUNC));
rmidx(path, flags);
if(r == -1){
snprint(err, sizeof err, "%s: can't %s\n", path, msg);
return err;
}
return 0;
}
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