diff options
| author |   Tom Jones <thj@freebsd.org> | 2024-04-24 10:30:20 +0000 |
|---|---|---|
| committer | Tom Jones <thj@freebsd.org> | 2024-04-24 10:30:20 +0000 |
| commit | ab47993a00e8854d64ae90de0cdd4b9272653473 (patch) | |
| tree | bbf7b7fc9ac6ae379506fcc1914e040e265831b6 /src/vppinfra | |
| parent | c0580f91a14cb4a68f1978c6702a91efc46d12a9 (diff) | |
vppinfra: Add method for getting current executable name
Add a unix method for getting the current executable name. This is
implemented to match the readlink api for existing calls.
Type: improvement
Change-Id: Id06a55892d09d0b305a56b55a424f53ffb685a72
Signed-off-by: Tom Jones <thj@freebsd.org>
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vppinfra')
| -rw-r--r-- | src/vppinfra/unix-misc.c | 24 | ||||
| -rw-r--r-- | src/vppinfra/unix.h | 4 |
2 files changed, 28 insertions, 0 deletions
diff --git a/src/vppinfra/unix-misc.c b/src/vppinfra/unix-misc.c index 4dbc5ce98ce..29cbe0a557d 100644 --- a/src/vppinfra/unix-misc.c +++ b/src/vppinfra/unix-misc.c @@ -42,6 +42,8 @@ #include <vppinfra/format.h> #ifdef __linux__ #include <vppinfra/linux/sysfs.h> +#else +#include <sys/sysctl.h> #endif #include <sys/stat.h> @@ -358,6 +360,28 @@ os_get_cpu_phys_core_id (int cpu_id) #endif } +__clib_export u8 * +os_get_exec_path () +{ + u8 *rv = 0; +#ifdef __linux__ + char tmp[PATH_MAX]; + ssize_t sz = readlink ("/proc/self/exe", tmp, sizeof (tmp)); + + if (sz <= 0) + return 0; +#else + char tmp[MAXPATHLEN]; + int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 }; + size_t sz = MAXPATHLEN; + + if (sysctl (mib, 4, tmp, &sz, NULL, 0) == -1) + return 0; +#endif + vec_add (rv, tmp, sz); + return rv; +} + /* * fd.io coding-style-patch-verification: ON * diff --git a/src/vppinfra/unix.h b/src/vppinfra/unix.h index 3ad57b05e72..abda21879f9 100644 --- a/src/vppinfra/unix.h +++ b/src/vppinfra/unix.h @@ -71,6 +71,10 @@ clib_bitmap_t *os_get_cpu_on_node_bitmap (int node); /* Retrieve physical core id of specific cpu, -1 if not available */ int os_get_cpu_phys_core_id (int cpu); +/* Retrieve the path of the current executable as a vector (not + * null-terminated). */ +u8 *os_get_exec_path (); + #endif /* included_clib_unix_h */ /* |