termux-packages/ndk-patches/pwd.h.patch

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diff -u -r /home/fornwall/lib/android-ndk/sysroot/usr/include/pwd.h ./usr/include/pwd.h
2017-06-26 14:15:01 +02:00
--- /home/fornwall/lib/android-ndk/sysroot/usr/include/pwd.h 2017-06-20 17:41:56.000000000 +0200
+++ ./usr/include/pwd.h 2017-06-26 11:45:26.036064547 +0200
@@ -63,6 +63,8 @@
#include <sys/cdefs.h>
#include <sys/types.h>
+#include <stdlib.h> /* For realpath() */
+
__BEGIN_DECLS
struct passwd {
@@ -89,7 +91,6 @@
struct passwd* getpwent(void) __INTRODUCED_IN(26);
void setpwent(void) __INTRODUCED_IN(26);
-void endpwent(void) __INTRODUCED_IN(26);
#endif /* __ANDROID_API__ >= 26 */
2017-06-29 00:03:16 +02:00
@@ -99,6 +100,54 @@
int getpwuid_r(uid_t, struct passwd*, char*, size_t, struct passwd**) __INTRODUCED_IN(12);
#endif /* __ANDROID_API__ >= 12 */
2017-06-29 00:03:16 +02:00
+int access(const char* __path, int __mode);
+
+static void android_setup_pwd(struct passwd* pw) {
+ static char realpath_buffer[4096/*PATH_MAX*/];
2017-06-26 14:15:01 +02:00
+ char* result = realpath("/data/data/com.termux/files/home/.termux/shell", realpath_buffer);
+ if (result == NULL || access(realpath_buffer, /*X_OK*/1) == -1) {
+ char const* bash_path = "/data/data/com.termux/files/usr/bin/bash";
+ if (access(bash_path, /*X_OK*/1) != -1) pw->pw_shell = (char*) bash_path;
+ else pw->pw_shell = "/data/data/com.termux/files/usr/bin/sh";
+ } else {
+ pw->pw_shell = realpath_buffer;
+ }
2017-06-26 14:15:01 +02:00
+ pw->pw_dir = "/data/data/com.termux/files/home";
+ pw->pw_passwd = "*";
+#ifdef __LP64__
+ pw->pw_gecos = ""; /* Avoid NULL field. */
+#endif
+}
+
+static struct passwd* android_polyfill_getpwuid(uid_t t) {
+ struct passwd* pw = getpwuid(t);
+ if (pw == NULL) return NULL;
+ android_setup_pwd(pw);
+ return pw;
+}
+
+static struct passwd* android_polyfill_getpwnam(const char* name) {
+ struct passwd* pw = getpwnam(name);
+ if (pw == NULL) return NULL;
+ android_setup_pwd(pw);
+ return pw;
+}
+
+static int android_polyfill_getpwuid_r(uid_t uid,
+ struct passwd *pwd,
+ char *buffer,
+ size_t bufsize,
+ struct passwd **result) {
+ int ret = getpwuid_r(uid, pwd, buffer, bufsize, result);
+ if (ret != 0) return ret;
+ android_setup_pwd(pwd);
+ return 0;
+}
+
+#define getpwnam android_polyfill_getpwnam
+#define getpwuid android_polyfill_getpwuid
+#define getpwuid_r android_polyfill_getpwuid_r
+static void endpwent(void) { /* Do nothing. */ }
__END_DECLS