Merge branch 'collectd-4.10' into collectd-5.0

[collectd.git] / src / libcollectdclient / client.c

diff --git a/src/libcollectdclient/client.c b/src/libcollectdclient/client.c
index 134a5c4..f5fe204 100644 (file)
--- a/src/libcollectdclient/client.c
+++ b/src/libcollectdclient/client.c
@@ -23,11 +23,6 @@
 # include "config.h"
 #endif
 
-/* Set to C99 and POSIX code */
-#if COLLECT_STANDARDS
-# include "standards.h"
-#endif /* COLLECT_STANDARDS */
-
 #if !defined(__GNUC__) || !__GNUC__
 # define __attribute__(x) /**/
 #endif
@@ -118,38 +113,65 @@ typedef struct lcc_response_s lcc_response_t;
 /*
  * Private functions
  */
+/* Even though Posix requires "strerror_r" to return an "int",
+ * some systems (e.g. the GNU libc) return a "char *" _and_
+ * ignore the second argument ... -tokkee */
+static char *sstrerror (int errnum, char *buf, size_t buflen)
+{
+  buf[0] = 0;
+
+#if !HAVE_STRERROR_R
+  snprintf (buf, buflen, "Error #%i; strerror_r is not available.", errnum);
+/* #endif !HAVE_STRERROR_R */
+
+#elif STRERROR_R_CHAR_P
+  {
+    char *temp;
+    temp = strerror_r (errnum, buf, buflen);
+    if (buf[0] == 0)
+    {
+      if ((temp != NULL) && (temp != buf) && (temp[0] != 0))
+        strncpy (buf, temp, buflen);
+      else
+        strncpy (buf, "strerror_r did not return "
+            "an error message", buflen);
+    }
+  }
+/* #endif STRERROR_R_CHAR_P */
+
+#else
+  if (strerror_r (errnum, buf, buflen) != 0)
+  {
+    snprintf (buf, buflen, "Error #%i; "
+        "Additionally, strerror_r failed.",
+        errnum);
+  }
+#endif /* STRERROR_R_CHAR_P */
+
+  buf[buflen - 1] = 0;
+
+  return (buf);
+} /* char *sstrerror */
+
 static int lcc_set_errno (lcc_connection_t *c, int err) /* {{{ */
 {
   if (c == NULL)
     return (-1);
 
-  strerror_r (err, c->errbuf, sizeof (c->errbuf));
+  sstrerror (err, c->errbuf, sizeof (c->errbuf));
   c->errbuf[sizeof (c->errbuf) - 1] = 0;
 
   return (0);
 } /* }}} int lcc_set_errno */
 
-/* lcc_strdup: Since `strdup' is an XSI extension, we provide our own version
- * here. */
-__attribute__((malloc, nonnull (1)))
-static char *lcc_strdup (const char *str) /* {{{ */
-{
-  size_t strsize;
-  char *ret;
-
-  strsize = strlen (str) + 1;
-  ret = (char *) malloc (strsize);
-  if (ret != NULL)
-    memcpy (ret, str, strsize);
-  return (ret);
-} /* }}} char *lcc_strdup */
-
-__attribute__((nonnull (1, 2)))
 static char *lcc_strescape (char *dest, const char *src, size_t dest_size) /* {{{ */
 {
   size_t dest_pos;
   size_t src_pos;
 
+  if ((dest == NULL) || (src == NULL))
+    return (NULL);
+
   dest_pos = 0;
   src_pos = 0;
 
@@ -303,7 +325,7 @@ static int lcc_receive (lcc_connection_t *c, /* {{{ */
     lcc_chomp (buffer);
     LCC_DEBUG ("receive: <-- %s\n", buffer);
 
-    res.lines[i] = lcc_strdup (buffer);
+    res.lines[i] = strdup (buffer);
     if (res.lines[i] == NULL)
     {
       lcc_set_errno (c, ENOMEM);
@@ -698,7 +720,7 @@ int lcc_getval (lcc_connection_t *c, lcc_identifier_t *ident, /* {{{ */
 
     if (values_names != NULL)
     {
-      values_names[i] = lcc_strdup (key);
+      values_names[i] = strdup (key);
       if (values_names[i] == NULL)
         BAIL_OUT (ENOMEM);
     }
@@ -711,6 +733,8 @@ int lcc_getval (lcc_connection_t *c, lcc_identifier_t *ident, /* {{{ */
   if (ret_values_names != NULL)
     *ret_values_names = values_names;
 
+  lcc_response_free (&res);
+
   return (0);
 } /* }}} int lcc_getval */
 
@@ -742,9 +766,9 @@ int lcc_putval (lcc_connection_t *c, const lcc_value_list_t *vl) /* {{{ */
     SSTRCATF (command, " interval=%i", vl->interval);
 
   if (vl->time > 0)
-    SSTRCATF (command, "%u", (unsigned int) vl->time);
+    SSTRCATF (command, " %u", (unsigned int) vl->time);
   else
-    SSTRCAT (command, "N");
+    SSTRCAT (command, " N");
 
   for (i = 0; i < vl->values_len; i++)
   {
@@ -753,10 +777,15 @@ int lcc_putval (lcc_connection_t *c, const lcc_value_list_t *vl) /* {{{ */
     else if (vl->values_types[i] == LCC_TYPE_GAUGE)
     {
       if (isnan (vl->values[i].gauge))
-        SSTRCPY (command, ":U");
+        SSTRCATF (command, ":U");
       else
         SSTRCATF (command, ":%g", vl->values[i].gauge);
     }
+    else if (vl->values_types[i] == LCC_TYPE_DERIVE)
+       SSTRCATF (command, ":%"PRIu64, vl->values[i].derive);
+    else if (vl->values_types[i] == LCC_TYPE_ABSOLUTE)
+       SSTRCATF (command, ":%"PRIu64, vl->values[i].absolute);
+
   } /* for (i = 0; i < vl->values_len; i++) */
 
   status = lcc_sendreceive (c, command, &res);
@@ -973,7 +1002,7 @@ int lcc_string_to_identifier (lcc_connection_t *c, /* {{{ */
   char *type;
   char *type_instance;
 
-  string_copy = lcc_strdup (string);
+  string_copy = strdup (string);
   if (string_copy == NULL)
   {
     lcc_set_errno (c, ENOMEM);