1 files changed, 44 insertions, 0 deletions
diff --git a/nss/common.h b/nss/common.h
new file mode 100644
index 0000000..d54cf6e
--- /dev/null
+++ b/nss/common.h
@@ -0,0 +1,44 @@
+
+#include <nss.h>
+
+/* translates a nsklcd return code (as defined in nslcd.h) to
+   a nss code (as defined in nss.h) */
+enum nss_status nslcd2nss(int code);
+
+/* Macros for reading and writing to sockets. */
+#define OPEN_SOCK \
+  if ((fp=nslcd_client_open())==NULL) \
+  { \
+    *errnop=errno; \
+    return NSS_STATUS_UNAVAIL; \
+  }
+
+#define ERROR_OUT(status,errnoval) \
+  { \
+    fclose(fp); \
+    *errnop=errnoval; \
+    return (status); \
+  }
+
+#define READ(fp,ptr,size) \
+  if (fread(ptr,size,1,fp)<1) \
+    ERROR_OUT(NSS_STATUS_UNAVAIL,ENOENT);
+
+#define LDF_STRING(field) \
+  /* read the size of the string */ \
+  READ(fp,&sz,sizeof(int32_t)); \
+  /* FIXME: add error checking and sanity checking */ \
+  /* check if read would fit */ \
+  if ((bufptr+(size_t)sz+1)>buflen) \
+    ERROR_OUT(NSS_STATUS_TRYAGAIN,ERANGE); /* will not fit */ \
+  /* read string from the stream */ \
+  READ(fp,buffer+bufptr,(size_t)sz); \
+  /* TODO: check that string does not contain \0 */ \
+  /* null-terminate string in buffer */ \
+  buffer[bufptr+sz]='\0'; \
+  /* prepare result */ \
+  (field)=buffer+bufptr; \
+  bufptr+=sz+1;
+
+#define LDF_TYPE(field,type) \
+  READ(fp,&(field),sizeof(type))