make directories as neeeded
diff --git a/src/cmd/gzip/unzip.c b/src/cmd/gzip/unzip.c
index af9a4ed..990e4b6 100644
--- a/src/cmd/gzip/unzip.c
+++ b/src/cmd/gzip/unzip.c
@@ -331,6 +331,32 @@
}
}
+static int
+makedir(char *s)
+{
+ int f;
+
+ if (access(s, AEXIST) == 0)
+ return -1;
+ f = create(s, OREAD, DMDIR | 0777);
+ if (f >= 0)
+ close(f);
+ return f;
+}
+
+static void
+mkpdirs(char *s)
+{
+ int done = 0;
+ char *p = s;
+
+ while (!done && (p = strchr(p + 1, '/')) != nil) {
+ *p = '\0';
+ done = (access(s, AEXIST) < 0 && makedir(s) < 0);
+ *p = '/';
+ }
+}
+
/*
* extracts a single entry from a zip file
* czh is the optional corresponding central directory entry
@@ -380,6 +406,10 @@
}else if(isdir){
fd = create(zh.file, OREAD, DMDIR | 0775);
if(fd < 0){
+ mkpdirs(zh.file);
+ fd = create(zh.file, OREAD, DMDIR | 0775);
+ }
+ if(fd < 0){
d = dirstat(zh.file);
if(d == nil || (d->mode & DMDIR) != DMDIR){
fprint(2, "unzip: can't create directory %s: %r\n", zh.file);
@@ -390,6 +420,10 @@
}else if(ok){
fd = create(zh.file, OWRITE, 0664);
if(fd < 0){
+ mkpdirs(zh.file);
+ fd = create(zh.file, OWRITE, 0664);
+ }
+ if(fd < 0){
fprint(2, "unzip: can't create %s: %r\n", zh.file);
ok = 0;
}else
