* Florian octo Forster <octo at verplant.org>
**/
-/* Set to C99 and POSIX code */
-#ifndef _ISOC99_SOURCE
-# define _ISOC99_SOURCE
-#endif
-#ifndef _POSIX_SOURCE
-# define _POSIX_SOURCE
-#endif
-#ifndef _POSIX_C_SOURCE
-# define _POSIX_C_SOURCE 200112L
-#endif
-#ifndef _REENTRANT
-# define _REENTRANT
+#if HAVE_CONFIG_H
+# include "config.h"
#endif
-/* Disable non-standard extensions */
-#ifdef _BSD_SOURCE
-# undef _BSD_SOURCE
-#endif
-#ifdef _SVID_SOURCE
-# undef _SVID_SOURCE
-#endif
-#ifdef _GNU_SOURCE
-# undef _GNU_SOURCE
-#endif
+/* Set to C99 and POSIX code */
+#if COLLECT_STANDARDS
+# include "standards.h"
+#endif /* COLLECT_STANDARDS */
#if !defined(__GNUC__) || !__GNUC__
# define __attribute__(x) /**/
#endif
+#include "lcc_features.h"
+
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
+#include <math.h>
#include <netdb.h>
#include "client.h"
+/* NI_MAXHOST has been obsoleted by RFC 3493 which is a reason for SunOS 5.11
+ * to no longer define it. We'll use the old, RFC 2553 value here. */
+#ifndef NI_MAXHOST
+# define NI_MAXHOST 1025
+#endif
+
+/* OpenBSD doesn't have EPROTO, FreeBSD doesn't have EILSEQ. Oh what joy! */
+#ifndef EILSEQ
+# ifdef EPROTO
+# define EILSEQ EPROTO
+# else
+# define EILSEQ EINVAL
+# endif
+#endif
+
+/* Secure/static macros. They work like `strcpy' and `strcat', but assure null
+ * termination. They work for static buffers only, because they use `sizeof'.
+ * The `SSTRCATF' combines the functionality of `snprintf' and `strcat' which
+ * is very useful to add formatted stuff to the end of a buffer. */
#define SSTRCPY(d,s) do { \
- strncpy ((d), (s), sizeof (d)); \
- (d)[sizeof (d) - 1] = 0; \
-} while (0)
+ strncpy ((d), (s), sizeof (d)); \
+ (d)[sizeof (d) - 1] = 0; \
+ } while (0)
+
+#define SSTRCAT(d,s) do { \
+ size_t _l = strlen (d); \
+ strncpy ((d) + _l, (s), sizeof (d) - _l); \
+ (d)[sizeof (d) - 1] = 0; \
+ } while (0)
+
+#define SSTRCATF(d, ...) do { \
+ char _b[sizeof (d)]; \
+ snprintf (_b, sizeof (_b), __VA_ARGS__); \
+ _b[sizeof (_b) - 1] = 0; \
+ SSTRCAT ((d), _b); \
+ } while (0)
+
#define LCC_SET_ERRSTR(c, ...) do { \
snprintf ((c)->errbuf, sizeof ((c)->errbuf), __VA_ARGS__); \
(c)->errbuf[sizeof ((c)->errbuf) - 1] = 0; \
} while (0)
-#if 1
+#if COLLECT_DEBUG
# define LCC_DEBUG(...) printf (__VA_ARGS__)
#else
# define LCC_DEBUG(...) /**/
/*
* 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);
} /* }}} char *lcc_strdup */
__attribute__((nonnull (1, 2)))
-static char *lcc_strescape (char *dest, char *src, size_t dest_size) /* {{{ */
+static char *lcc_strescape (char *dest, const char *src, size_t dest_size) /* {{{ */
{
size_t dest_pos;
size_t src_pos;
lcc_response_t res;
int status;
+ if (c->fh == NULL)
+ {
+ lcc_set_errno (c, EBADF);
+ return (-1);
+ }
+
status = lcc_send (c, command);
if (status != 0)
return (status);
assert (c->fh == NULL);
assert (path != NULL);
- fd = socket (PF_UNIX, SOCK_STREAM, /* protocol = */ 0);
+ /* Don't use PF_UNIX here, because it's broken on Mac OS X (10.4, possibly
+ * others). */
+ fd = socket (AF_UNIX, SOCK_STREAM, /* protocol = */ 0);
if (fd < 0)
{
lcc_set_errno (c, errno);
/*
* Public functions
*/
+unsigned int lcc_version (void) /* {{{ */
+{
+ return (LCC_VERSION);
+} /* }}} unsigned int lcc_version */
+
+const char *lcc_version_string (void) /* {{{ */
+{
+ return (LCC_VERSION_STRING);
+} /* }}} const char *lcc_version_string */
+
+const char *lcc_version_extra (void) /* {{{ */
+{
+ return (LCC_VERSION_EXTRA);
+} /* }}} const char *lcc_version_extra */
+
int lcc_connect (const char *address, lcc_connection_t **ret_con) /* {{{ */
{
lcc_connection_t *c;
+ int status;
if (address == NULL)
return (-1);
return (-1);
memset (c, 0, sizeof (*c));
+ status = lcc_open_socket (c, address);
+ if (status != 0)
+ {
+ lcc_disconnect (c);
+ return (status);
+ }
+
*ret_con = c;
- return (lcc_open_socket (c, address));
+ return (0);
} /* }}} int lcc_connect */
int lcc_disconnect (lcc_connection_t *c) /* {{{ */
if (res.status != 0)
{
LCC_SET_ERRSTR (c, "Server error: %s", res.message);
+ lcc_response_free (&res);
return (-1);
}
key = res.lines[i];
value = strchr (key, '=');
if (value == NULL)
- BAIL_OUT (EPROTO);
+ BAIL_OUT (EILSEQ);
*value = 0;
value++;
return (0);
} /* }}} int lcc_getval */
-/* TODO: Implement lcc_putval */
-int lcc_putval (lcc_connection_t *c, const lcc_value_list_t *vl);
+int lcc_putval (lcc_connection_t *c, const lcc_value_list_t *vl) /* {{{ */
+{
+ char ident_str[6 * LCC_NAME_LEN];
+ char ident_esc[12 * LCC_NAME_LEN];
+ char command[1024] = "";
+ lcc_response_t res;
+ int status;
+ size_t i;
-/* TODO: Implement lcc_flush */
-int lcc_flush (lcc_connection_t *c, lcc_identifier_t *ident, int timeout);
+ if ((c == NULL) || (vl == NULL) || (vl->values_len < 1)
+ || (vl->values == NULL) || (vl->values_types == NULL))
+ {
+ lcc_set_errno (c, EINVAL);
+ return (-1);
+ }
+
+ status = lcc_identifier_to_string (c, ident_str, sizeof (ident_str),
+ &vl->identifier);
+ if (status != 0)
+ return (status);
+
+ SSTRCATF (command, "PUTVAL %s",
+ lcc_strescape (ident_esc, ident_str, sizeof (ident_esc)));
+
+ if (vl->interval > 0)
+ SSTRCATF (command, " interval=%i", vl->interval);
+
+ if (vl->time > 0)
+ SSTRCATF (command, "%u", (unsigned int) vl->time);
+ else
+ SSTRCAT (command, "N");
+
+ for (i = 0; i < vl->values_len; i++)
+ {
+ if (vl->values_types[i] == LCC_TYPE_COUNTER)
+ SSTRCATF (command, ":%"PRIu64, vl->values[i].counter);
+ else if (vl->values_types[i] == LCC_TYPE_GAUGE)
+ {
+ if (isnan (vl->values[i].gauge))
+ SSTRCPY (command, ":U");
+ else
+ SSTRCATF (command, ":%g", vl->values[i].gauge);
+ }
+ } /* for (i = 0; i < vl->values_len; i++) */
+
+ status = lcc_sendreceive (c, command, &res);
+ if (status != 0)
+ return (status);
+
+ if (res.status != 0)
+ {
+ LCC_SET_ERRSTR (c, "Server error: %s", res.message);
+ lcc_response_free (&res);
+ return (-1);
+ }
+
+ lcc_response_free (&res);
+ return (0);
+} /* }}} int lcc_putval */
+
+int lcc_flush (lcc_connection_t *c, const char *plugin, /* {{{ */
+ lcc_identifier_t *ident, int timeout)
+{
+ char command[1024] = "";
+ lcc_response_t res;
+ int status;
+
+ if (c == NULL)
+ {
+ lcc_set_errno (c, EINVAL);
+ return (-1);
+ }
+
+ SSTRCPY (command, "FLUSH");
+
+ if (timeout > 0)
+ SSTRCATF (command, " timeout=%i", timeout);
+
+ if (plugin != NULL)
+ {
+ char buffer[2 * LCC_NAME_LEN];
+ SSTRCATF (command, " plugin=%s",
+ lcc_strescape (buffer, plugin, sizeof (buffer)));
+ }
+
+ if (ident != NULL)
+ {
+ char ident_str[6 * LCC_NAME_LEN];
+ char ident_esc[12 * LCC_NAME_LEN];
+
+ status = lcc_identifier_to_string (c, ident_str, sizeof (ident_str), ident);
+ if (status != 0)
+ return (status);
+
+ SSTRCATF (command, " identifier=%s",
+ lcc_strescape (ident_esc, ident_str, sizeof (ident_esc)));
+ }
+
+ status = lcc_sendreceive (c, command, &res);
+ if (status != 0)
+ return (status);
+
+ if (res.status != 0)
+ {
+ LCC_SET_ERRSTR (c, "Server error: %s", res.message);
+ lcc_response_free (&res);
+ return (-1);
+ }
+
+ lcc_response_free (&res);
+ return (0);
+} /* }}} int lcc_flush */
/* TODO: Implement lcc_putnotif */
if (res.status != 0)
{
LCC_SET_ERRSTR (c, "Server error: %s", res.message);
+ lcc_response_free (&res);
return (-1);
}
if (*ident_str == 0)
{
- lcc_set_errno (c, EPROTO);
+ lcc_set_errno (c, EILSEQ);
status = -1;
break;
}
projects / collectd.git / blobdiff