1 files changed, 97 insertions, 0 deletions
diff --git a/src/common/utils.cpp b/src/common/utils.cpp
new file mode 100644
index 0000000..fbdd87e
--- /dev/null
+++ b/src/common/utils.cpp
@@ -0,0 +1,97 @@
+#include "utils.hpp"
+
+#include <cstring>
+#include <cstdio>
+#include <cstdlib>
+
+#include <netinet/in.h>
+
+//-----------------------------------------------------
+// Function to suppress control characters in a string.
+//-----------------------------------------------------
+int remove_control_chars (char *str)
+{
+    int  i;
+    int  change = 0;
+
+    for (i = 0; str[i]; i++)
+    {
+        if (0 <= str[i] && str[i] < 32)
+        {
+            str[i] = '_';
+            change = 1;
+        }
+    }
+
+    return change;
+}
+
+//---------------------------------------------------
+// E-mail check: return 0 (not correct) or 1 (valid).
+//---------------------------------------------------
+int e_mail_check (const char *email)
+{
+    char ch;
+    const char *last_arobas;
+
+    // athena limits
+    if (strlen (email) < 3 || strlen (email) > 39)
+        return 0;
+
+    // part of RFC limits (official reference of e-mail description)
+    if (strchr (email, '@') == NULL || email[strlen (email) - 1] == '@')
+        return 0;
+
+    if (email[strlen (email) - 1] == '.')
+        return 0;
+
+    last_arobas = strrchr (email, '@');
+
+    if (strstr (last_arobas, "@.") != NULL ||
+        strstr (last_arobas, "..") != NULL)
+        return 0;
+
+    for (ch = 1; ch < 32; ch++)
+    {
+        if (strchr (last_arobas, ch) != NULL)
+        {
+            return 0;
+            break;
+        }
+    }
+
+    if (strchr (last_arobas, ' ') != NULL ||
+        strchr (last_arobas, ';') != NULL)
+        return 0;
+
+    // all correct
+    return 1;
+}
+
+//-------------------------------------------------
+// Return numerical value of a switch configuration
+// on/off, english, français, deutsch, español
+//-------------------------------------------------
+int config_switch (const char *str)
+{
+    if (strcasecmp (str, "on") == 0 || strcasecmp (str, "yes") == 0
+        || strcasecmp (str, "oui") == 0 || strcasecmp (str, "ja") == 0
+        || strcasecmp (str, "si") == 0)
+        return 1;
+    if (strcasecmp (str, "off") == 0 || strcasecmp (str, "no") == 0
+        || strcasecmp (str, "non") == 0 || strcasecmp (str, "nein") == 0)
+        return 0;
+
+    return atoi (str);
+}
+
+const char *ip2str(struct in_addr ip, bool extra_dot)
+{
+    const uint8_t *p = (const uint8_t *)(&ip);
+    static char buf[17];
+    if (extra_dot)
+        sprintf(buf, "%d.%d.%d.%d.", p[0], p[1], p[2], p[3]);
+    else
+        sprintf(buf, "%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
+    return buf;
+}