ABI

cleonos/c/apps/args_main.c

@@ -0,0 +1,61 @@
+#include "cmd_runtime.h"
+
+static void ush_args_write_u64_dec(u64 value) {
+    char tmp[32];
+    u64 len = 0ULL;
+
+    if (value == 0ULL) {
+        ush_write_char('0');
+        return;
+    }
+
+    while (value > 0ULL && len < (u64)sizeof(tmp)) {
+        tmp[len++] = (char)('0' + (value % 10ULL));
+        value /= 10ULL;
+    }
+
+    while (len > 0ULL) {
+        len--;
+        ush_write_char(tmp[len]);
+    }
+}
+
+int cleonos_app_main(int argc, char **argv, char **envp) {
+    int i;
+    int env_count = 0;
+
+    ush_write("argc=");
+    ush_args_write_u64_dec((u64)((argc >= 0) ? argc : 0));
+    ush_write_char('\n');
+
+    for (i = 0; i < argc; i++) {
+        ush_write("argv[");
+        ush_args_write_u64_dec((u64)i);
+        ush_write("]=");
+
+        if (argv != (char **)0 && argv[i] != (char *)0) {
+            ush_writeln(argv[i]);
+        } else {
+            ush_writeln("(null)");
+        }
+    }
+
+    if (envp != (char **)0) {
+        while (envp[env_count] != (char *)0 && env_count < 64) {
+            env_count++;
+        }
+    }
+
+    ush_write("envc=");
+    ush_args_write_u64_dec((u64)env_count);
+    ush_write_char('\n');
+
+    for (i = 0; i < env_count; i++) {
+        ush_write("env[");
+        ush_args_write_u64_dec((u64)i);
+        ush_write("]=");
+        ush_writeln(envp[i]);
+    }
+
+    return 0;
+}