nss: improve comments

[nsscash/nsscash.git] / nss / pw.c

diff --git a/nss/pw.c b/nss/pw.c
index c7e056666216c1cf7e3143dd5626583d1b22298d..e95ec38c0b07db3b787be4302f027392a7c09c38 100644 (file)
--- a/nss/pw.c
+++ b/nss/pw.c
@@ -36,18 +36,18 @@ struct passwd_entry {
     uint64_t uid;
     uint64_t gid;
 
-    //       off_name = 0
+    //       off_name = 0, not stored on disk
     uint16_t off_passwd;
     uint16_t off_gecos;
     uint16_t off_dir;
     uint16_t off_shell;
 
-    uint16_t data_size;
     /*
      * Data contains all strings (name, passwd, gecos, dir, shell)
      * concatenated, with their trailing NUL. The off_* variables point to
      * beginning of each string.
      */
+    uint16_t data_size; // size of data in bytes
     const char data[];
 } __attribute__((packed));
 
@@ -151,7 +151,7 @@ static enum nss_status internal_getpw(struct search_key *key, struct passwd *res
         return NSS_STATUS_NOTFOUND;
     }
 
-    const char *e = h->data + h->off_data + *off;
+    const char *e = key->data + *off;
     if (!entry_to_passwd((struct passwd_entry *)e, result, buffer, buflen)) {
         unmap_file(&f);
         errno = ERANGE;