ctrl: log host/port on errors
In case of multiple ctrl-client entries in .cfg file it's impossible to
see which one is causing particular ctrl error. Fix this by introducing
macro wrapper for stderr logging which always show host:port relevant to
the error.
Change-Id: I788d51359965a66c54075a3971aa7824c3bfb0bf
Related: SYS#2655
diff --git a/src/simple_ctrl.c b/src/simple_ctrl.c
index 2261323..b56fc83 100644
--- a/src/simple_ctrl.c
+++ b/src/simple_ctrl.c
@@ -37,6 +37,9 @@
#include "simple_ctrl.h"
+#define CTRL_ERR(cfg, fmt, args...) \
+ fprintf(stderr, "CTRL %s:%u error: " fmt, cfg.remote_host, cfg.remote_port, ##args)
+
/***********************************************************************
* blocking I/O with timeout helpers
***********************************************************************/
@@ -98,20 +101,28 @@
int fd;
uint32_t next_id;
uint32_t tout_msec;
+ struct ctrl_cfg cfg;
};
struct simple_ctrl_handle *simple_ctrl_open(void *ctx, const char *host, uint16_t dport,
uint32_t tout_msec)
{
- struct simple_ctrl_handle *sch;
+ struct simple_ctrl_handle *sch = talloc_zero(ctx, struct simple_ctrl_handle);
fd_set writeset;
int off = 0;
int rc, fd;
+ if (!sch)
+ return NULL;
+
+ sch->cfg.name = talloc_strdup(sch, "simple-ctrl");
+ sch->cfg.remote_host = talloc_strdup(sch, host);
+ sch->cfg.remote_port = dport;
+
fd = osmo_sock_init(AF_INET, SOCK_STREAM, IPPROTO_TCP, host, dport,
OSMO_SOCK_F_CONNECT | OSMO_SOCK_F_NONBLOCK);
if (fd < 0) {
- fprintf(stderr, "CTRL: error connecting socket: %s\n", strerror(errno));
+ CTRL_ERR(sch->cfg, "connecting socket: %s\n", strerror(errno));
return NULL;
}
@@ -120,23 +131,20 @@
FD_SET(fd, &writeset);
rc = select(fd+1, NULL, &writeset, NULL, timeval_from_msec(tout_msec));
if (rc == 0) {
- fprintf(stderr, "CTRL: timeout during connect\n");
+ CTRL_ERR(sch->cfg, "timeout during connect\n");
goto out_close;
}
if (rc < 0) {
- fprintf(stderr, "CTRL: error connecting socket: %s\n", strerror(errno));
+ CTRL_ERR(sch->cfg, "error connecting socket: %s\n", strerror(errno));
goto out_close;
}
/* set FD blocking again */
if (ioctl(fd, FIONBIO, (unsigned char *)&off) < 0) {
- fprintf(stderr, "CTRL: cannot set socket blocking: %s\n", strerror(errno));
+ CTRL_ERR(sch->cfg, "cannot set socket blocking: %s\n", strerror(errno));
goto out_close;
}
- sch = talloc_zero(ctx, struct simple_ctrl_handle);
- if (!sch)
- goto out_close;
sch->fd = fd;
sch->tout_msec = tout_msec;
return sch;
@@ -165,10 +173,10 @@
rc = read_timeout(sch->fd, (uint8_t *) &hh, sizeof(hh), sch->tout_msec);
if (rc < 0) {
- fprintf(stderr, "CTRL: Error during read: %d\n", rc);
+ CTRL_ERR(sch->cfg, "read(): %d\n", rc);
return NULL;
} else if (rc < sizeof(hh)) {
- fprintf(stderr, "CTRL: ERROR: short read (header)\n");
+ CTRL_ERR(sch->cfg, "short read (header)\n");
return NULL;
}
len = ntohs(hh.len);
@@ -182,7 +190,7 @@
resp->l2h = resp->tail;
rc = read(sch->fd, resp->l2h, len);
if (rc < len) {
- fprintf(stderr, "CTRL: ERROR: short read (payload)\n");
+ CTRL_ERR(sch->cfg, "short read (payload)\n");
msgb_free(resp);
return NULL;
}
@@ -214,7 +222,7 @@
*tmp = '\0';
return resp;
} else {
- fprintf(stderr, "unknown IPA message %s\n", msgb_hexdump(resp));
+ CTRL_ERR(sch->cfg, "unknown IPA message %s\n", msgb_hexdump(resp));
msgb_free(resp);
}
}
@@ -229,10 +237,10 @@
rc = write_timeout(sch->fd, msg->data, msg->len, sch->tout_msec);
if (rc < 0) {
- fprintf(stderr, "CTRL: Error during write: %d\n", rc);
+ CTRL_ERR(sch->cfg, "write(): %d\n", rc);
return rc;
} else if (rc < msg->len) {
- fprintf(stderr, "CTRL: ERROR: short write\n");
+ CTRL_ERR(sch->cfg, "short write\n");
msgb_free(msg);
return -1;
} else {
@@ -283,7 +291,7 @@
free(rx_var);
free(rx_val);
} else {
- fprintf(stderr, "CTRL: ERROR: GET(%s) results in '%s'\n", var, (char *)msgb_l2(resp));
+ CTRL_ERR(sch->cfg, "GET(%s) results in '%s'\n", var, (char *)msgb_l2(resp));
}
msgb_free(resp);
@@ -321,7 +329,7 @@
free(rx_var);
}
} else {
- fprintf(stderr, "CTRL: ERROR: SET(%s=%s) results in '%s'\n", var, val, (char *) msgb_l2(resp));
+ CTRL_ERR(sch->cfg, "SET(%s=%s) results in '%s'\n", var, val, (char *) msgb_l2(resp));
}
msgb_free(resp);