Initial commit, done

1 files changed, 90 insertions, 0 deletions

diff --git a/depends/libcap/libcap/_makenames.c b/depends/libcap/libcap/_makenames.c
new file mode 100644
index 0000000..30eb080
--- /dev/null
+++ b/depends/libcap/libcap/_makenames.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 1997-8,2020 Andrew G. Morgan <morgan@kernel.org>
+ *
+ * This is a file to make the capability <-> string mappings for
+ * libcap.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * #include 'sed' generated array
+ */
+
+struct {
+    const char *name;
+    int index;
+} const list[] = {
+#include "cap_names.list.h"
+    {NULL, -1}
+};
+
+/*
+ * recalloc uses realloc to grow some memory but it resets the
+ * indicated extended empty space.
+ */
+static void *recalloc(void *p, int was, int is) {
+    char *n = realloc(p, is);
+    if (!n) {
+	fputs("out of memory", stderr);
+	exit(1);
+    }
+    memset(n+was, 0, is-was);
+    return n;
+}
+
+int main(void)
+{
+    int i, maxcaps=0, maxlength=0;
+    const char **pointers = NULL;
+    int pointers_avail = 0;
+
+    for ( i=0; list[i].index >= 0 && list[i].name; ++i ) {
+	if (maxcaps <= list[i].index) {
+	    maxcaps = list[i].index + 1;
+	}
+        if (pointers == NULL || list[i].index >= pointers_avail) {
+	    int was = pointers_avail * sizeof(char *);
+	    pointers_avail = 2 * list[i].index + 1;
+	    pointers = recalloc(pointers, was, pointers_avail * sizeof(char *));
+	    if (pointers == NULL) {
+		perror("unable to continue");
+		exit(1);
+	    }
+        }
+	pointers[list[i].index] = list[i].name;
+	int n = strlen(list[i].name);
+	if (n > maxlength) {
+	    maxlength = n;
+	}
+    }
+
+    printf("/*\n"
+	   " * DO NOT EDIT: this file is generated automatically from\n"
+	   " *\n"
+	   " *     <uapi/linux/capability.h>\n"
+	   " */\n\n"
+	   "#define __CAP_BITS       %d\n"
+	   "#define __CAP_NAME_SIZE  %d\n"
+	   "\n"
+	   "#ifdef LIBCAP_PLEASE_INCLUDE_ARRAY\n"
+	   "#define LIBCAP_CAP_NAMES { \\\n", maxcaps, maxlength+1);
+
+    for (i=0; i<maxcaps; ++i) {
+	if (pointers[i]) {
+	    printf("      /* %d */\t\"%s\", \\\n", i, pointers[i]);
+	} else {
+	    printf("      /* %d */\tNULL,\t\t/* - presently unused */ \\\n", i);
+	}
+    }
+
+    printf("  }\n"
+	   "#endif /* LIBCAP_PLEASE_INCLUDE_ARRAY */\n"
+	   "\n"
+	   "/* END OF FILE */\n");
+
+    free(pointers);
+    exit(0);
+}