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-rw-r--r--plugin_pop3.c444
1 files changed, 223 insertions, 221 deletions
diff --git a/plugin_pop3.c b/plugin_pop3.c
index f4cf2f7..d8501b9 100644
--- a/plugin_pop3.c
+++ b/plugin_pop3.c
@@ -1,4 +1,4 @@
-/* $Id: plugin_pop3.c,v 1.7 2005/01/18 06:30:23 reinelt Exp $
+/* $Id: plugin_pop3.c,v 1.8 2005/04/01 05:16:04 reinelt Exp $
*
* Plugin to check POP3 mail accounts
*
@@ -27,6 +27,9 @@
*
*
* $Log: plugin_pop3.c,v $
+ * Revision 1.8 2005/04/01 05:16:04 reinelt
+ * moved plugin init stuff to a seperate function called on first use
+ *
* Revision 1.7 2005/01/18 06:30:23 reinelt
* added (C) to all copyright statements
*
@@ -80,285 +83,284 @@
#include <dmalloc.h>
#endif
- /*POP 3 */
-#define POPERR "-ERR"
-#define LOCKEDERR "-ERR account is locked by another session or for maintenance, try again."
-#define BUFSIZE 8192
-#define POP3PORT 110
-#define MAX_NUM_ACCOUNTS 3
+/*POP 3 */
+#define POPERR "-ERR"
+#define LOCKEDERR "-ERR account is locked by another session or for maintenance, try again."
+#define BUFSIZE 8192
+#define POP3PORT 110
+#define MAX_NUM_ACCOUNTS 3
struct check {
- int id;
- char *username;
- char *password;
- char *server;
- int port;
- int messages;
- struct check *next;
+ int id;
+ char *username;
+ char *password;
+ char *server;
+ int port;
+ int messages;
+ struct check *next;
};
+
/************************ PROTOTYPES ********************************/
/* list */
static struct check *check_node_alloc(void);
static void check_node_add(struct check **head, struct check *new_check);
static void check_destroy(struct check **head);
+
/* pop3 */
static void pop3_check_messages(struct check *hi,int verbose);
static void pop3_recv_crlf_terminated(int sockfd, char *buf, int size);
+
/* socket */
static int tcp_connect(struct check *hi);
+
+
/************************ GLOBAL ***********************************/
static char Section[] = "Plugin:POP3";
-static struct check *head = NULL;
+static struct check *head = NULL;
/********************************************************************/
-static void my_POP3check (RESULT *result, RESULT *check)
-{
- double value;
- double param=R2N(check);
-
- struct check *node = NULL;
-
- for (node = head; node; node = node->next)
- {
- if (node->id == param)
- break;
- }
- if (node == NULL) /*Inexistent account */
- value=-1.0;
- else
- pop3_check_messages(node,0);
- value = (double)node->messages;
- SetResult(&result, R_NUMBER, &value);
-}
-static int getConfig (void)
-{
- struct check *node = NULL;
- int i,n=0;
- char *user= (char *)calloc(1, sizeof("user")+sizeof(int));
- char *password= (char *)calloc(1, sizeof("password")+sizeof(int));
- char *server=(char *)calloc(1, sizeof("server")+sizeof(int));
- char *port= (char *)calloc(1, sizeof("port")+sizeof(int));
-
- for (i =1;i <= MAX_NUM_ACCOUNTS; i++)
- {
- char *x;
- sprintf(user,"user%d",i);
- sprintf(password,"password%d",i);
- sprintf(server,"server%d",i);
- sprintf(port,"port%d",i);
-
- x = cfg_get (Section, server, "");
- if (*x=='\0')
- {
- info ("[POP3] No '%s.%s' entry from %s, disabling POP3 account #%d", Section, server, cfg_source(),i);
- free(x);
- }
- else
- {
- node = check_node_alloc();
- node->id = i;
- node->server = x;
- node->messages = 0;
- node->next = NULL;
-
- x = cfg_get (Section, user, "");
- if (*x=='\0')
- {
- info ("[POP3] No '%s.%s' entry from %s, disabling POP3 account #%d", Section, user, cfg_source(),i);
- free(x);
- }
- else
- {
- node->username = x;
- x = cfg_get (Section, password, "");
- if (*x=='\0')
- {
- info ("[POP3] No '%s.%s' entry from %s, disabling POP3 account #%d", Section, password, cfg_source(),i);
- free(x);
- }
- else
- {
- node->password = x;
- if (cfg_number(Section, port, POP3PORT, 1, 65536, &node->port)<1)
- info("[POP3] No '%s.%s' entry from %s, %d will be used for account #%d", Section, port, cfg_source(),POP3PORT,i);
- check_node_add(&head, node);
- n++;
- }
- }
- }
- }
- return(n);
-}
/************************ LIST ***********************************/
+
static struct check *check_node_alloc(void)
{
- struct check *new_check;
- new_check = (struct check *)calloc(1, sizeof(struct check));
- if (new_check == NULL)
- {
- error( "[POP3] out of memory\n");
- }
- return new_check;
+ struct check *new_check;
+ new_check = (struct check *)calloc(1, sizeof(struct check));
+ if (new_check == NULL) {
+ error( "[POP3] out of memory\n");
+ }
+ return new_check;
}
static void check_node_add(struct check **head, struct check *new_check)
{
- new_check->next = *head ;
- *head = new_check;
+ new_check->next = *head ;
+ *head = new_check;
}
static void check_destroy(struct check **head)
-{
- struct check *iter;
- while (*head)
- {
- iter = (*head)->next;
- free((*head)->username);
- free((*head)->password);
- free((*head)->server);
- free(*head);
- *head = iter;
- }
- *head = NULL;
+{
+ struct check *iter;
+ while (*head) {
+ iter = (*head)->next;
+ free((*head)->username);
+ free((*head)->password);
+ free((*head)->server);
+ free(*head);
+ *head = iter;
+ }
+ *head = NULL;
}
/************************ POP3 ********************************/
static void pop3_check_messages(struct check *hi,int verbose)
{
- char buf[BUFSIZE];
- int sockfd;
+ char buf[BUFSIZE];
+ int sockfd;
- if ((sockfd = tcp_connect(hi)) < 0)
- {
- hi->messages = -1;
- return;
- }
-
- pop3_recv_crlf_terminated(sockfd, buf, sizeof(buf)); /* server greeting */
- if (verbose)
- info("[POP3] %s -> %s\n", hi->server, buf);
-
- snprintf(buf, sizeof(buf), "USER %s\r\n", hi->username);
- write(sockfd, buf, strlen(buf));
- buf[strlen(buf)-1] = '\0';
- if (verbose)
- info("[POP3] %s <- %s\n", hi->server, buf);
- pop3_recv_crlf_terminated(sockfd, buf, sizeof(buf)); /* response from USER command */
- if (verbose)
- info("[POP3] %s -> %s\n", hi->server, buf);
-
- snprintf(buf, sizeof(buf), "PASS %s\r\n", hi->password);
- write(sockfd, buf, strlen(buf));
- if (verbose)
- info("[POP3] %s <- PASS ???\n", hi->server);
- pop3_recv_crlf_terminated(sockfd, buf, sizeof(buf)); /* response from PASS command */
- if (verbose)
- info("[POP3] %s -> %s\n", hi->server, buf);
-
- if (strncmp(buf, LOCKEDERR, strlen(LOCKEDERR)) == 0)
- {
- hi->messages = -2;
- close(sockfd);
- return;
- }
- if (strncmp(buf, POPERR, strlen(POPERR)) == 0)
- {
- error("[POP3] error logging into %s\n", hi->server);
- error("[POP3] server responded: %s\n", buf);
- hi->messages = -1;
- close(sockfd);
- return;
- }
-
- snprintf(buf, sizeof(buf), "STAT\r\n");
- write(sockfd, buf, strlen(buf));
- if (verbose)
- info("[POP3] %s <- STAT\n", hi->server);
- pop3_recv_crlf_terminated(sockfd, buf, sizeof(buf)); /* response from PASS command */
- if (verbose)
- info("[POP3] %s -> %s\n", hi->server, buf);
-
- strtok(buf, " ");
- hi->messages = atoi(strtok(NULL, " "));
-
- snprintf(buf, sizeof(buf), "QUIT\r\n");
- write(sockfd, buf, strlen(buf));
- if (verbose)
- info("[POP3] %s <- QUIT\n", hi->server);
- pop3_recv_crlf_terminated(sockfd, buf, sizeof(buf)); /* response from QUIT command */
- if (verbose)
- info("[POP3] %s -> %s\n", hi->server, buf);
-
- close(sockfd);
+ if ((sockfd = tcp_connect(hi)) < 0) {
+ hi->messages = -1;
+ return;
+ }
+
+ pop3_recv_crlf_terminated(sockfd, buf, sizeof(buf)); /* server greeting */
+ if (verbose) info("[POP3] %s -> %s\n", hi->server, buf);
+
+ snprintf(buf, sizeof(buf), "USER %s\r\n", hi->username);
+ write(sockfd, buf, strlen(buf));
+ buf[strlen(buf)-1] = '\0';
+ if (verbose) info("[POP3] %s <- %s\n", hi->server, buf);
+ pop3_recv_crlf_terminated(sockfd, buf, sizeof(buf)); /* response from USER command */
+ if (verbose) info("[POP3] %s -> %s\n", hi->server, buf);
+
+ snprintf(buf, sizeof(buf), "PASS %s\r\n", hi->password);
+ write(sockfd, buf, strlen(buf));
+ if (verbose) info("[POP3] %s <- PASS ???\n", hi->server);
+ pop3_recv_crlf_terminated(sockfd, buf, sizeof(buf)); /* response from PASS command */
+ if (verbose) info("[POP3] %s -> %s\n", hi->server, buf);
+
+ if (strncmp(buf, LOCKEDERR, strlen(LOCKEDERR)) == 0) {
+ hi->messages = -2;
+ close(sockfd);
+ return;
+ }
+ if (strncmp(buf, POPERR, strlen(POPERR)) == 0) {
+ error("[POP3] error logging into %s\n", hi->server);
+ error("[POP3] server responded: %s\n", buf);
+ hi->messages = -1;
+ close(sockfd);
+ return;
+ }
+
+ snprintf(buf, sizeof(buf), "STAT\r\n");
+ write(sockfd, buf, strlen(buf));
+ if (verbose) info("[POP3] %s <- STAT\n", hi->server);
+ pop3_recv_crlf_terminated(sockfd, buf, sizeof(buf)); /* response from PASS command */
+ if (verbose) info("[POP3] %s -> %s\n", hi->server, buf);
+
+ strtok(buf, " ");
+ hi->messages = atoi(strtok(NULL, " "));
+
+ snprintf(buf, sizeof(buf), "QUIT\r\n");
+ write(sockfd, buf, strlen(buf));
+ if (verbose) info("[POP3] %s <- QUIT\n", hi->server);
+ pop3_recv_crlf_terminated(sockfd, buf, sizeof(buf)); /* response from QUIT command */
+ if (verbose) info("[POP3] %s -> %s\n", hi->server, buf);
+
+ close(sockfd);
}
static void pop3_recv_crlf_terminated(int sockfd, char *buf, int size)
{
-/* receive one line server responses terminated with CRLF */
- char *pos;
- int bytes = 0;
- memset(buf, 0, size);
- while ((pos = strstr(buf, "\r\n")) == NULL)
- bytes += read(sockfd, buf+bytes, size-bytes);
- *pos = '\0';
+ /* receive one line server responses terminated with CRLF */
+ char *pos;
+ int bytes = 0;
+ memset(buf, 0, size);
+ while ((pos = strstr(buf, "\r\n")) == NULL)
+ bytes += read(sockfd, buf+bytes, size-bytes);
+ *pos = '\0';
}
/************************ SOCKET ********************************/
static int tcp_connect(struct check *hi)
{
- struct sockaddr_in addr;
- struct hostent *he = gethostbyname(hi->server);
- int sockfd;
+ struct sockaddr_in addr;
+ struct hostent *he = gethostbyname(hi->server);
+ int sockfd;
- if (hi == NULL)
- return -1;
+ if (hi == NULL) return -1;
- if (!he)
- {
- error("[POP3] Failed to lookup %s\n",hi->server);
- return(-1);
- }
+ if (!he) {
+ error("[POP3] Failed to lookup %s\n",hi->server);
+ return(-1);
+ }
- memset((char *)&addr, 0, sizeof(struct sockaddr_in));
- addr.sin_family = AF_INET;
- memcpy(&(addr.sin_addr.s_addr), he->h_addr, he->h_length);
- addr.sin_port = htons(hi->port);
+ memset((char *)&addr, 0, sizeof(struct sockaddr_in));
+ addr.sin_family = AF_INET;
+ memcpy(&(addr.sin_addr.s_addr), he->h_addr, he->h_length);
+ addr.sin_port = htons(hi->port);
- if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
- {
- perror("socket()");
- return(-1);
- }
-
- if (connect(sockfd, (struct sockaddr *)&addr, sizeof(struct sockaddr)) < 0)
- {
- perror("connect()");
- close(sockfd);
- return(-1);
+ if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+ perror("socket()");
+ return(-1);
+ }
+
+ if (connect(sockfd, (struct sockaddr *)&addr, sizeof(struct sockaddr)) < 0) {
+ perror("connect()");
+ close(sockfd);
+ return(-1);
+ }
+
+ return(sockfd);
+}
+
+
+static int getConfig (void)
+{
+ struct check *node = NULL;
+ int i,n=0;
+ char *user= (char *)calloc(1, sizeof("user")+sizeof(int));
+ char *password= (char *)calloc(1, sizeof("password")+sizeof(int));
+ char *server=(char *)calloc(1, sizeof("server")+sizeof(int));
+ char *port= (char *)calloc(1, sizeof("port")+sizeof(int));
+
+ for (i =1;i <= MAX_NUM_ACCOUNTS; i++) {
+ char *x;
+ sprintf(user,"user%d",i);
+ sprintf(password,"password%d",i);
+ sprintf(server,"server%d",i);
+ sprintf(port,"port%d",i);
+
+ x = cfg_get (Section, server, "");
+ if (*x=='\0') {
+ info ("[POP3] No '%s.%s' entry from %s, disabling POP3 account #%d", Section, server, cfg_source(),i);
+ free(x);
+ } else {
+ node = check_node_alloc();
+ node->id = i;
+ node->server = x;
+ node->messages = 0;
+ node->next = NULL;
+
+ x = cfg_get (Section, user, "");
+ if (*x=='\0') {
+ info ("[POP3] No '%s.%s' entry from %s, disabling POP3 account #%d", Section, user, cfg_source(),i);
+ free(x);
+ } else {
+ node->username = x;
+ x = cfg_get (Section, password, "");
+ if (*x=='\0') {
+ info ("[POP3] No '%s.%s' entry from %s, disabling POP3 account #%d", Section, password, cfg_source(),i);
+ free(x);
+ } else {
+ node->password = x;
+ if (cfg_number(Section, port, POP3PORT, 1, 65536, &node->port)<1) {
+ info("[POP3] No '%s.%s' entry from %s, %d will be used for account #%d", Section, port, cfg_source(),POP3PORT,i);
+ }
+ check_node_add(&head, node);
+ n++;
}
+ }
+ }
+ }
+ return(n);
+}
+
+
+static int configure_pop3 (void)
+{
+ static int configured = 0;
+ int n;
+
+ if (configured != 0) return configured;
+
+ n = getConfig();
+ /* by now, head should point to a list of all our accounts */
+ if (head) {
+ info("[POP3] %d POP3 accounts have been succesfully defined",n);
+ configured = 1;
+ } else {
+ configured = -1;
+ }
+ return configured;
+}
+
- return(sockfd);
+static void my_POP3check (RESULT *result, RESULT *check)
+{
+ double param = R2N(check);
+ struct check *node = NULL;
+ double value;
+
+ if (configure_pop3() < 0) {
+ value = -1;
+ SetResult(&result, R_NUMBER, &value);
+ return;
+ }
+
+ for (node = head; node; node = node->next) {
+ if (node->id == param) break;
+ }
+ if (node == NULL) { /*Inexistent account */
+ value = -1;
+ } else {
+ pop3_check_messages(node,0);
+ value = (double)node->messages;
+ }
+ SetResult(&result, R_NUMBER, &value);
}
int plugin_init_pop3(void)
{
-
- int n = getConfig();
- /* by now, head should point to a list of all our accounts */
- if (head)
- {
- info("[POP3] %d POP3 accounts have been succesfully defined",n);
- AddFunction ("POP3check", 1, my_POP3check);
- }
- return 0;
+ AddFunction ("POP3check", 1, my_POP3check);
+ return 0;
}
void plugin_exit_pop3(void)
{
- check_destroy(&head);
+ check_destroy(&head);
}
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