Adding upstream version 4.96.upstream/4.96upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 238 insertions, 0 deletions

diff --git a/exim_monitor/em_init.c b/exim_monitor/em_init.c
new file mode 100644
index 0000000..e0bc3b0
--- /dev/null
+++ b/exim_monitor/em_init.c
@@ -0,0 +1,238 @@
+/*************************************************
+*                  Exim monitor                  *
+*************************************************/
+
+/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* Copyright (c) The Exim Maintainers 2020 - 2021 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+/* This module contains code to initialize things from the
+environment and the arguments. */
+
+
+#include "em_hdr.h"
+
+
+
+/*************************************************
+*            Decode stripchart config            *
+*************************************************/
+
+/* First determine how many are requested, then compile the
+regular expressions and save the title strings. Note that
+stripchart_number is initialized to 1 or 2 to count the always-
+present queue stripchart, and the optional size-monitoring
+stripchart. */
+
+static void decode_stripchart_config(uschar *s)
+{
+int i;
+
+/* Loop: first time just counts, second time does the
+work. */
+
+for (i = 0; i <= 1; i++)
+  {
+  int first = 1;
+  int count = 0;
+  uschar *p = s;
+
+  if (*p == '/') p++;   /* allow optional / at start */
+
+  /* This loops for all the substrings, using the first flag
+  to determine whether each is the first or second of the pairs. */
+
+  while (*p)
+    {
+    uschar *pp;
+    /* Handle continuations */
+    if (*p == '\n')
+      {
+      while (*(++p) == ' ' || *p == '\t');
+      if (*p == '/') p++;
+      }
+
+    /* Find the end of the string and count if first string */
+
+    pp = p;
+    while (*p && *p != '/') p++;
+    if (first) count++;
+
+    /* Take action on the second time round. */
+
+    if (i != 0)
+      {
+      uschar buffer[256];
+      int indx = count + stripchart_varstart - 1;
+      Ustrncpy(buffer, pp, p-pp);
+      buffer[p-pp] = 0;
+      if (first)
+        {
+        size_t offset;
+        int err;
+
+        if (!(stripchart_regex[indx] =
+		pcre2_compile((PCRE2_SPTR)buffer,
+		      PCRE2_ZERO_TERMINATED, PCRE_COPT,
+		      &err, &offset, NULL)))
+          {
+	  uschar errbuf[128];
+	  pcre2_get_error_message(err, errbuf, sizeof(errbuf));
+          printf("regular expression error: %s at offset %ld "
+            "while compiling %s\n", errbuf, (long)offset, buffer);
+          exit(99);
+          }
+        }
+      else stripchart_title[indx] = string_copy(buffer);
+      }
+
+    /* Advance past the delimiter and flip the first/second flag */
+
+    p++;
+    first = !first;
+    }
+
+  /* On the first pass, we now know the number of stripcharts. Get
+  store for holding the pointers to the regular expressions and
+  title strings. */
+
+  if (i == 0)
+    {
+    stripchart_number += count;
+    stripchart_regex = (pcre2_code **)store_malloc(stripchart_number * sizeof(pcre2_code *));
+    stripchart_title = (uschar **)store_malloc(stripchart_number * sizeof(uschar *));
+    }
+  }
+}
+
+
+/*************************************************
+*                    Initialize                  *
+*************************************************/
+
+void init(int argc, uschar **argv)
+{
+int x;
+size_t erroroffset;
+uschar *s;
+
+argc = argc;     /* These are currently unused. */
+argv = argv;
+
+/* Deal with simple values in the environment. */
+
+if ((s = US getenv("ACTION_OUTPUT")))
+  {
+  if (Ustrcmp(s, "no") == 0) action_output = FALSE;
+  if (Ustrcmp(s, "yes") == 0) action_output = TRUE;
+  }
+
+if ((s = US getenv("ACTION_QUEUE_UPDATE")))
+  {
+  if (Ustrcmp(s, "no") == 0) action_queue_update = FALSE;
+  if (Ustrcmp(s, "yes") == 0) action_queue_update = TRUE;
+  }
+
+s = US getenv("BODY_MAX");
+if (s && (x = Uatoi(s)) != 0) body_max = x;
+
+if ((s = US getenv("EXIM_PATH")))
+  exim_path = string_copy(s);
+
+if ((s = US getenv("EXIMON_EXIM_CONFIG")))
+  alternate_config = string_copy(s);
+
+if ((s = US getenv("LOG_BUFFER")))
+  {
+  uschar c[1];
+  if (sscanf(CS s, "%d%c", &x, c) > 0)
+    {
+    if (c[0] == 'K' || c[0] == 'k') x *= 1024;
+    if (x < 1024) x = 1024;
+    log_buffer_size = x;
+    }
+  }
+
+s = US getenv("LOG_DEPTH");
+if (s && (x = Uatoi(s)) != 0) log_depth = x;
+
+if ((s = US getenv("LOG_FILE_NAME")))
+  log_file = string_copy(s);
+
+if ((s = US getenv("LOG_FONT")))
+  log_font = string_copy(s);
+
+s = US getenv("LOG_WIDTH");
+if (s && (x = Uatoi(s)) != 0) log_width = x;
+
+if ((s = US getenv("MENU_EVENT")))
+  menu_event = string_copy(s);
+
+s = US getenv("MIN_HEIGHT");
+if (s && (x = Uatoi(s)) > 0) min_height = x;
+
+s = US getenv("MIN_WIDTH");
+if (s && (x = Uatoi(s)) > 0) min_width = x;
+
+if ((s = US getenv("QUALIFY_DOMAIN")))
+  qualify_domain = string_copy(s);
+else
+  qualify_domain = US"";  /* Don't want NULL */
+
+s = US getenv("QUEUE_DEPTH");
+if (s && (x = Uatoi(s)) != 0) queue_depth = x;
+
+if ((s = US getenv("QUEUE_FONT")))
+  queue_font = string_copy(s);
+
+s = US getenv("QUEUE_INTERVAL");
+if (s && (x = Uatoi(s)) != 0) queue_update = x;
+
+s = US getenv("QUEUE_MAX_ADDRESSES");
+if (s && (x = Uatoi(s)) != 0) queue_max_addresses = x;
+
+s = US getenv("QUEUE_WIDTH");
+if (s && (x = Uatoi(s)) != 0) queue_width = x;
+
+if ((s = US getenv("SPOOL_DIRECTORY")))
+  spool_directory = string_copy(s);
+
+s = US getenv("START_SMALL");
+if (s && Ustrcmp(s, "yes") == 0) start_small = 1;
+
+s = US getenv("TEXT_DEPTH");
+if (s && (x = Uatoi(s)) != 0) text_depth = x;
+
+if ((s = US getenv("WINDOW_TITLE")))
+  window_title = string_copy(s);
+
+/* Deal with stripchart configuration. First see if we are monitoring
+the size of a partition, then deal with log stripcharts in a separate
+function */
+
+s = US getenv("SIZE_STRIPCHART");
+if (s && *s)
+  {
+  stripchart_number++;
+  stripchart_varstart++;
+  size_stripchart = string_copy(s);
+  s = US getenv("SIZE_STRIPCHART_NAME");
+  if (s != NULL && *s != 0) size_stripchart_name = string_copy(s);
+  }
+
+if ((s = US getenv("LOG_STRIPCHARTS")))
+  decode_stripchart_config(s);
+
+s = US getenv("STRIPCHART_INTERVAL");
+if (s && (x = Uatoi(s)) != 0) stripchart_update = x;
+
+s = US getenv("QUEUE_STRIPCHART_NAME");
+queue_stripchart_name = s ? string_copy(s) : US"queue";
+
+/* Compile the regex for matching yyyy-mm-dd at the start of a string. */
+
+yyyymmdd_regex = pcre2_compile((PCRE2_SPTR)"^\\d{4}-\\d\\d-\\d\\d\\s",
+  PCRE2_ZERO_TERMINATED, PCRE_COPT, &x, &erroroffset, NULL);
+}
+
+/* End of em_init.c */