[Minios-devel] [UNIKRAFT PATCH 1/1] lib/uksysinfo: Add gethostname implementation

[Vlad-Andrei BĂDOIU (78692) <vlad_andrei.badoiu@xxxxxxxxxxxxxxx>]

Signed-off-by: Vlad-Andrei Badoiu <vlad_andrei.badoiu@xxxxxxxxxxxxxxx>
---
 lib/uksysinfo/exportsyms.uk |  1 +
 lib/uksysinfo/sysinfo.c     | 22 ++++++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/lib/uksysinfo/exportsyms.uk b/lib/uksysinfo/exportsyms.uk
index d205e602..2e35b6fa 100644
--- a/lib/uksysinfo/exportsyms.uk
+++ b/lib/uksysinfo/exportsyms.uk
@@ -4,3 +4,4 @@ confstr
 pathconf
 getpagesize
 uname
+gethostname
diff --git a/lib/uksysinfo/sysinfo.c b/lib/uksysinfo/sysinfo.c
index 3bff4e6f..8615d3ae 100644
--- a/lib/uksysinfo/sysinfo.c
+++ b/lib/uksysinfo/sysinfo.c
@@ -35,6 +35,8 @@
 #include <stddef.h>
 #include <limits.h>
 #include <unistd.h>
+#include <errno.h>
+#include <string.h>
 #include <sys/utsname.h>
 #include <uk/essentials.h>
 
@@ -70,3 +72,23 @@ int uname(struct utsname *buf __unused)
 {
        return 0;
 }
+
+int gethostname(char *name, size_t len)
+{
+       struct utsname buf;
+       size_t node_len;
+       int rc;
+
+       if ((rc = uname(&buf)))
+               return -1;
+
+       node_len = strlen(buf.nodename) + 1;
+       if (node_len > len) {
+               errno = ENAMETOOLONG;
+               return -1;
+       }
+
+       strncpy(name, buf.nodename, node_len);
+
+       return 0;
+}
-- 
2.21.0

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