diff options
Diffstat (limited to 'tools/bpf/bpftool/gen.c')
| -rw-r--r-- | tools/bpf/bpftool/gen.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/tools/bpf/bpftool/gen.c b/tools/bpf/bpftool/gen.c index ee3ce2b8000d..a9334c57e859 100644 --- a/tools/bpf/bpftool/gen.c +++ b/tools/bpf/bpftool/gen.c @@ -7,6 +7,7 @@ #include <ctype.h> #include <errno.h> #include <fcntl.h> +#include <libgen.h> #include <linux/err.h> #include <stdbool.h> #include <stdio.h> @@ -56,9 +57,11 @@ static bool str_has_suffix(const char *str, const char *suffix) static void get_obj_name(char *name, const char *file) { - /* Using basename() GNU version which doesn't modify arg. */ - strncpy(name, basename(file), MAX_OBJ_NAME_LEN - 1); - name[MAX_OBJ_NAME_LEN - 1] = '\0'; + char file_copy[PATH_MAX]; + + /* Using basename() POSIX version to be more portable. */ + strncpy(file_copy, file, PATH_MAX - 1)[PATH_MAX - 1] = '\0'; + strncpy(name, basename(file_copy), MAX_OBJ_NAME_LEN - 1)[MAX_OBJ_NAME_LEN - 1] = '\0'; if (str_has_suffix(name, ".o")) name[strlen(name) - 2] = '\0'; sanitize_identifier(name); |