1 files changed, 78 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/libcruft/getgrent_r.c b/mdk-stage1/dietlibc/libcruft/getgrent_r.c
new file mode 100644
index 000000000..34ec1e957
--- /dev/null
+++ b/mdk-stage1/dietlibc/libcruft/getgrent_r.c
@@ -0,0 +1,78 @@
+#include <grp.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <paths.h>
+#include <string.h>
+#include "parselib.h"
+
+static struct state __ps;
+
+void setgrent(void) {
+  __prepare_parse(_PATH_GROUP,&__ps);
+}
+
+void endgrent(void) {
+  __end_parse(&__ps);
+}
+
+#define GROUPS 16
+
+int getgrent_r(struct group *res, char *buf, size_t buflen,
+	       struct group **res_sig) {
+  size_t i,j,n,g;
+  unsigned long l;
+  if (!__ps.buffirst) setgrent();
+  if (!__ps.buffirst) goto error;
+  if (__ps.cur>=__ps.buflen) goto error;
+  res->gr_mem=(char**)buf;
+again:
+  n=GROUPS*sizeof(char*); g=0;
+  for (i=0; i<4; ++i) {
+    char sep=i<3?':':',';
+    char found;
+    j=__parse_1(&__ps,sep);
+    if ((found=__ps.buffirst[__ps.cur+j])!=sep) {
+      if (found!='\n' || i!=3) {
+parseerror:
+	while (__ps.cur+j<__ps.buflen) {
+	  if (__ps.buffirst[__ps.cur+j]=='\n') {
+	    __ps.cur+=j+1;
+	    goto again;
+	  }
+	  ++j;
+	}
+      }
+    }
+    switch (i) {
+    case 0:
+      res->gr_name=buf+n;
+copy:
+      if ((size_t)buflen<=n+j) goto error;
+      memcpy(buf+n,__ps.buffirst+__ps.cur,j);
+      buf[n+j]=0;
+      n+=j+1;
+      if (found=='\n' && i==2) i=3;
+      break;
+    case 1: res->gr_passwd=buf+n; goto copy;
+    case 2:
+      if (scan_ulong(__ps.buffirst+__ps.cur,&l)!=j) goto parseerror;
+      res->gr_gid=l;
+      break;
+    case 3:
+      res->gr_mem[g]=buf+n;
+      ++g;
+      if (g==(GROUPS-1)) break;
+      --i;	/* again */
+      goto copy;
+    }
+    __ps.cur+=j+1;
+  }
+  res->gr_mem[g]=0;
+  *res_sig=res;
+  return 0;
+error:
+  *res_sig=0;/* the glibc people should be taken behind the barn and shot */
+  return -1;
+}
+
+/* uucp:x:14:uucp,root */