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diff -uNr shellinabox-2.20/shellinabox/launcher.c shellinabox-2.20.mod/shellinabox/launcher.c
--- shellinabox-2.20/shellinabox/launcher.c 2016-11-09 21:40:33.000000000 +0200
+++ shellinabox-2.20.mod/shellinabox/launcher.c 2020-01-03 01:31:45.220824399 +0200
@@ -676,10 +676,13 @@
// Temporarily regain privileges to update the utmp database
uid_t r_uid, e_uid, s_uid;
uid_t r_gid, e_gid, s_gid;
+
+#ifndef __ANDROID__
check(!getresuid(&r_uid, &e_uid, &s_uid));
check(!getresgid(&r_gid, &e_gid, &s_gid));
UNUSED_RETURN(setresuid(0, 0, 0));
UNUSED_RETURN(setresgid(0, 0, 0));
+#endif
if (enableUtmpLogging) {
setutxent();
@@ -693,10 +696,12 @@
#endif
}
+#ifndef __ANDROID__
// Switch back to the lower privileges
check(!setresgid(r_gid, e_gid, s_gid));
check(!setresuid(r_uid, e_uid, s_uid));
#endif
+#endif
NOINTR(close(utmp->pty));
}
@@ -1162,8 +1167,7 @@
if (service->useDefaultShell) {
check(!service->cmdline);
- service->cmdline = strdup(*pw->pw_shell ?
- pw->pw_shell : "/bin/sh");
+ service->cmdline = strdup("@TERMUX_PREFIX@/bin/bash");
}
if (restricted &&
@@ -1231,7 +1235,7 @@
(*environment)[numEnvVars++] = stringPrintf(NULL, "SHELL=%s", pw->pw_shell);
check(
(*environment)[numEnvVars++] = strdup(
- "PATH=/usr/local/bin:/usr/bin:/bin:/usr/games"));
+ "PATH=@TERMUX_PREFIX@/bin:@TERMUX_PREFIX@/bin/applets"));
(*environment)[numEnvVars++] = stringPrintf(NULL, "LOGNAME=%s",
service->user);
(*environment)[numEnvVars++] = stringPrintf(NULL, "USER=%s", service->user);
@@ -1566,10 +1570,13 @@
cfsetospeed(&tt, B38400);
tcsetattr(0, TCSAFLUSH, &tt);
+#ifndef __ANDROID__
// Assert root privileges in order to update utmp entry. We can only do that,
// if we have root permissions otherwise this fails.
UNUSED_RETURN(setresuid(0, 0, 0));
UNUSED_RETURN(setresgid(0, 0, 0));
+#endif
+
#ifdef HAVE_UTMPX_H
if (enableUtmpLogging) {
setutxent();
@@ -1641,9 +1648,11 @@
#endif
}
+#ifndef __ANDROID__
// Change user and group ids
check(!setresgid(service->gid, service->gid, service->gid));
check(!setresuid(service->uid, service->uid, service->uid));
+#endif
// Change working directory
if (service->useHomeDir) {
@@ -1682,10 +1691,7 @@
snprintf(remoteHost, 256,
(*realIP) ? "%s, %s" : "%s%s", peerName,
(*realIP) ? realIP : "");
- execle("/bin/login", "login", "-p", "-h", remoteHost,
- (void *)0, environment);
- execle("/usr/bin/login", "login", "-p", "-h", remoteHost,
- (void *)0, environment);
+ execle("@TERMUX_PREFIX@/bin/pwlogin", "pwlogin", (void *)0, environment);
} else {
// Launch user provied service
execService(width, height, service, peerName, realIP, environment, url);