chiark - git - mdw - termux-packages/blob - ndk_patches/pwd.patch

   1 diff -u -r /home/fornwall/lib/android-ndk/platforms/android-21/arch-arm/usr/include/pwd.h ./usr/include/pwd.h
   2 --- /home/fornwall/lib/android-ndk/platforms/android-21/arch-arm/usr/include/pwd.h      2014-10-14 22:53:49.000000000 -0400
   3 +++ ./usr/include/pwd.h 2015-07-15 09:42:32.974621965 -0400
   4 @@ -65,6 +65,10 @@
   5  #include <sys/cdefs.h>
   6  #include <sys/types.h>
   7
   8 +/* For access() and realpath(): */
   9 +#include <unistd.h>
  10 +#include <stdlib.h>
  11 +
  12  #define _PATH_PASSWD        "/etc/passwd"
  13  #define _PATH_MASTERPASSWD  "/etc/master.passwd"
  14  #define _PATH_MASTERPASSWD_LOCK "/etc/ptmp"
  15 @@ -119,6 +122,36 @@
  16  int getpwnam_r(const char*, struct passwd*, char*, size_t, struct passwd**);
  17  int getpwuid_r(uid_t, struct passwd*, char*, size_t, struct passwd**);
  18
  19 +static void android_setup_pwd(struct passwd* pw) {
  20 +       static char realpath_buffer[4096/*PATH_MAX*/];
  21 +       char* result = realpath("@TERMUX_HOME@/.termux/shell", realpath_buffer);
  22 +       if (result == NULL || access(realpath_buffer, X_OK) == -1) {
  23 +               char const* bash_path = "@TERMUX_PREFIX@/bin/bash";
  24 +               if (access(bash_path, X_OK) != -1) pw->pw_shell = (char*) bash_path;
  25 +               else pw->pw_shell = "@TERMUX_PREFIX@/bin/ash";
  26 +       } else {
  27 +               pw->pw_shell = strcmp(realpath_buffer, "@TERMUX_PREFIX@/bin/busybox") == 0 ? "@TERMUX_PREFIX@/bin/ash" : realpath_buffer;
  28 +       }
  29 +       pw->pw_dir = "@TERMUX_HOME@";
  30 +       pw->pw_passwd = "*";
  31 +}
  32 +
  33 +static struct passwd* android_polyfill_getpwuid(uid_t t) {
  34 +       struct passwd* pw = getpwuid(t);
  35 +       if (pw == NULL) return NULL;
  36 +       android_setup_pwd(pw);
  37 +       return pw;
  38 +}
  39 +
  40 +static struct passwd* android_polyfill_getpwnam(const char* name) {
  41 +       struct passwd* pw = getpwnam(name);
  42 +       if (pw == NULL) return NULL;
  43 +       android_setup_pwd(pw);
  44 +       return pw;
  45 +}
  46 +
  47 +#define getpwnam android_polyfill_getpwnam
  48 +#define getpwuid android_polyfill_getpwuid
  49  void endpwent(void);
  50  struct passwd* getpwent(void);
  51  int setpwent(void);