save commit

minishell-codex/src/executor/path.c

@@ -0,0 +1,41 @@
+#include "minishell.h"
+
+static int has_slash(const char *s)
+{
+	return (s && strchr(s, '/'));
+}
+
+char *resolve_path(const char *cmd, t_shell *sh)
+{
+	char *path_env;
+	char **parts;
+	char *candidate;
+	int i;
+
+	if (!cmd)
+		return NULL;
+	if (is_builtin(cmd))
+		return ms_strdup(cmd);
+	if (has_slash(cmd))
+		return ms_strdup(cmd);
+	path_env = env_get(sh, "PATH");
+	if (!path_env)
+		return NULL;
+	parts = ms_split(path_env, ':');
+	if (!parts)
+		return NULL;
+	i = 0;
+	while (parts[i])
+	{
+		candidate = ms_strjoin3(parts[i], "/", cmd);
+		if (candidate && access(candidate, X_OK) == 0)
+		{
+			ms_free_split(parts);
+			return candidate;
+		}
+		free(candidate);
+		i++;
+	}
+	ms_free_split(parts);
+	return NULL;
+}