windows.c: Define a bunch of stuff that's not in MinGW, yet.

[libserialport.git] / linux.c

diff --git a/linux.c b/linux.c
index 730ba9d0433caa2d2b79f089ce236fc8fd2e856a..9ccd3b384608d8ed4fd62551a4744f9af04cc5bb 100644 (file)
--- a/linux.c
+++ b/linux.c
@@ -20,7 +20,7 @@
 #include "libserialport.h"
 #include "libserialport_internal.h"
 
-enum sp_return get_port_details(struct sp_port *port)
+SP_PRIV enum sp_return get_port_details(struct sp_port *port)
 {
        /* Description limited to 127 char,
           anything longer would not be user friendly anyway */
@@ -156,12 +156,18 @@ enum sp_return get_port_details(struct sp_port *port)
        RETURN_OK();
 }
 
-enum sp_return list_ports(struct sp_port ***list)
+SP_PRIV enum sp_return list_ports(struct sp_port ***list)
 {
        char name[PATH_MAX], target[PATH_MAX];
        struct dirent entry, *result;
+#ifdef HAVE_SERIAL_STRUCT
        struct serial_struct serial_info;
-       int len, fd, ioctl_result;
+       int ioctl_result;
+#endif
+#ifndef HAVE_READLINKAT
+       char buf[sizeof(entry.d_name) + 16];
+#endif
+       int len, fd;
        DIR *dir;
        int ret = SP_OK;
 
@@ -171,7 +177,12 @@ enum sp_return list_ports(struct sp_port ***list)
 
        DEBUG("Iterating over results");
        while (!readdir_r(dir, &entry, &result) && result) {
+#ifdef HAVE_READLINKAT
                len = readlinkat(dirfd(dir), entry.d_name, target, sizeof(target));
+#else
+               snprintf(buf, sizeof(buf), "/sys/class/tty/%s", entry.d_name);
+               len = readlink(buf, target, sizeof(target));
+#endif
                if (len <= 0 || len >= (int) sizeof(target)-1)
                        continue;
                target[len] = 0;
@@ -188,8 +199,11 @@ enum sp_return list_ports(struct sp_port ***list)
                                DEBUG("open failed, skipping");
                                continue;
                        }
+#ifdef HAVE_SERIAL_STRUCT
                        ioctl_result = ioctl(fd, TIOCGSERIAL, &serial_info);
+#endif
                        close(fd);
+#ifdef HAVE_SERIAL_STRUCT
                        if (ioctl_result != 0) {
                                DEBUG("ioctl failed, skipping");
                                continue;
@@ -198,6 +212,7 @@ enum sp_return list_ports(struct sp_port ***list)
                                DEBUG("port type is unknown, skipping");
                                continue;
                        }
+#endif
                }
                DEBUG("Found port %s", name);
                *list = list_append(*list, name);