Merge "POSIX getlogin_r/LOGIN_NAME_MAX/TTY_NAME_MAX."
am: 8aa4bc7c55
Change-Id: I578d3e5c096401b0447f9ed7223d3e20ffb5b19e
This commit is contained in:
commit
b82a2d0bd5
12 changed files with 71 additions and 17 deletions
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@ -467,7 +467,16 @@ int getgrouplist(const char* /*user*/, gid_t group, gid_t* groups, int* ngroups)
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char* getlogin() { // NOLINT: implementing bad function.
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passwd *pw = getpwuid(getuid()); // NOLINT: implementing bad function in terms of bad function.
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return (pw != NULL) ? pw->pw_name : NULL;
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return pw ? pw->pw_name : nullptr;
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}
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int getlogin_r(char* buf, size_t size) {
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char* login = getlogin();
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if (login == nullptr) return errno;
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size_t login_length = strlen(login) + 1;
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if (login_length > size) return ERANGE;
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memcpy(buf, login, login_length);
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return 0;
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}
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void setpwent() {
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@ -135,12 +135,12 @@ long sysconf(int name) {
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case _SC_TIMERS: return _POSIX_TIMERS;
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case _SC_GETGR_R_SIZE_MAX: return 1024;
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case _SC_GETPW_R_SIZE_MAX: return 1024;
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case _SC_LOGIN_NAME_MAX: return 256; // Seems default on linux.
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case _SC_LOGIN_NAME_MAX: return LOGIN_NAME_MAX;
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case _SC_THREAD_DESTRUCTOR_ITERATIONS: return PTHREAD_DESTRUCTOR_ITERATIONS;
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case _SC_THREAD_KEYS_MAX: return PTHREAD_KEYS_MAX;
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case _SC_THREAD_STACK_MIN: return PTHREAD_STACK_MIN;
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case _SC_THREAD_THREADS_MAX: return -1; // No specific limit.
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case _SC_TTY_NAME_MAX: return 32; // Seems default on linux.
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case _SC_TTY_NAME_MAX: return TTY_NAME_MAX;
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case _SC_THREADS: return _POSIX_THREADS;
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case _SC_THREAD_ATTR_STACKADDR: return _POSIX_THREAD_ATTR_STACKADDR;
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case _SC_THREAD_ATTR_STACKSIZE: return _POSIX_THREAD_ATTR_STACKSIZE;
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@ -137,6 +137,8 @@
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#include <bits/posix_limits.h>
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#define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
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#define LOGIN_NAME_MAX 256
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#define TTY_NAME_MAX 32
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#define _POSIX_VERSION 200809L
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#define _POSIX2_VERSION _POSIX_VERSION
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@ -118,6 +118,7 @@ int setresgid(gid_t __rgid, gid_t __egid, gid_t __sgid);
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int getresuid(uid_t* __ruid, uid_t* __euid, uid_t* __suid);
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int getresgid(gid_t* __rgid, gid_t* __egid, gid_t* __sgid);
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char* getlogin(void);
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int getlogin_r(char* __buffer, size_t __buffer_size) __INTRODUCED_IN_FUTURE;
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long fpathconf(int __fd, int __name);
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long pathconf(const char* __path, int __name);
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@ -1316,6 +1316,11 @@ LIBC_O {
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wctrans_l; # introduced=26
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} LIBC_N;
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LIBC_P {
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global:
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getlogin_r; # future
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} LIBC_O;
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LIBC_PRIVATE {
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global:
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___Unwind_Backtrace; # arm
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@ -1532,7 +1537,7 @@ LIBC_PRIVATE {
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vfdprintf; # arm x86 mips
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wait3; # arm x86 mips
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wcswcs; # arm x86 mips
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} LIBC_O;
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} LIBC_P;
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LIBC_DEPRECATED {
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global:
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@ -1554,4 +1559,4 @@ LIBC_PLATFORM {
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malloc_disable;
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malloc_enable;
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malloc_iterate;
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} LIBC_O;
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} LIBC_P;
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@ -1238,6 +1238,11 @@ LIBC_O {
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wctrans_l; # introduced=26
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} LIBC_N;
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LIBC_P {
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global:
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getlogin_r; # future
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} LIBC_O;
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LIBC_PRIVATE {
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global:
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android_getaddrinfofornet;
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@ -1249,7 +1254,7 @@ LIBC_PRIVATE {
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free_malloc_leak_info;
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get_malloc_leak_info;
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gMallocLeakZygoteChild;
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} LIBC_O;
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} LIBC_P;
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LIBC_DEPRECATED {
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global:
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@ -1271,4 +1276,4 @@ LIBC_PLATFORM {
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malloc_disable;
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malloc_enable;
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malloc_iterate;
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} LIBC_O;
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} LIBC_P;
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@ -1341,6 +1341,11 @@ LIBC_O {
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wctrans_l; # introduced=26
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} LIBC_N;
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LIBC_P {
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global:
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getlogin_r; # future
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} LIBC_O;
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LIBC_PRIVATE {
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global:
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___Unwind_Backtrace; # arm
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@ -1558,7 +1563,7 @@ LIBC_PRIVATE {
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vfdprintf; # arm x86 mips
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wait3; # arm x86 mips
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wcswcs; # arm x86 mips
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} LIBC_O;
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} LIBC_P;
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LIBC_DEPRECATED {
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global:
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@ -1580,4 +1585,4 @@ LIBC_PLATFORM {
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malloc_disable;
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malloc_enable;
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malloc_iterate;
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} LIBC_O;
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} LIBC_P;
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@ -1300,6 +1300,11 @@ LIBC_O {
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wctrans_l; # introduced=26
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} LIBC_N;
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LIBC_P {
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global:
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getlogin_r; # future
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} LIBC_O;
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LIBC_PRIVATE {
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global:
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__accept4; # arm x86 mips
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@ -1373,7 +1378,7 @@ LIBC_PRIVATE {
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vfdprintf; # arm x86 mips
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wait3; # arm x86 mips
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wcswcs; # arm x86 mips
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} LIBC_O;
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} LIBC_P;
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LIBC_DEPRECATED {
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global:
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@ -1395,4 +1400,4 @@ LIBC_PLATFORM {
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malloc_disable;
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malloc_enable;
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malloc_iterate;
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} LIBC_O;
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} LIBC_P;
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@ -1238,6 +1238,11 @@ LIBC_O {
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wctrans_l; # introduced=26
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} LIBC_N;
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LIBC_P {
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global:
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getlogin_r; # future
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} LIBC_O;
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LIBC_PRIVATE {
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global:
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android_getaddrinfofornet;
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@ -1249,7 +1254,7 @@ LIBC_PRIVATE {
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free_malloc_leak_info;
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get_malloc_leak_info;
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gMallocLeakZygoteChild;
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} LIBC_O;
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} LIBC_P;
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LIBC_DEPRECATED {
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global:
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@ -1271,4 +1276,4 @@ LIBC_PLATFORM {
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malloc_disable;
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malloc_enable;
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malloc_iterate;
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} LIBC_O;
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} LIBC_P;
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@ -1298,6 +1298,11 @@ LIBC_O {
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wctrans_l; # introduced=26
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} LIBC_N;
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LIBC_P {
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global:
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getlogin_r; # future
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} LIBC_O;
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LIBC_PRIVATE {
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global:
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__accept4; # arm x86 mips
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@ -1372,7 +1377,7 @@ LIBC_PRIVATE {
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vfdprintf; # arm x86 mips
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wait3; # arm x86 mips
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wcswcs; # arm x86 mips
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} LIBC_O;
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} LIBC_P;
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LIBC_DEPRECATED {
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global:
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@ -1394,4 +1399,4 @@ LIBC_PLATFORM {
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malloc_disable;
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malloc_enable;
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malloc_iterate;
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} LIBC_O;
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} LIBC_P;
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@ -1238,6 +1238,11 @@ LIBC_O {
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wctrans_l; # introduced=26
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} LIBC_N;
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LIBC_P {
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global:
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getlogin_r; # future
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} LIBC_O;
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LIBC_PRIVATE {
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global:
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android_getaddrinfofornet;
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@ -1249,7 +1254,7 @@ LIBC_PRIVATE {
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free_malloc_leak_info;
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get_malloc_leak_info;
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gMallocLeakZygoteChild;
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} LIBC_O;
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} LIBC_P;
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LIBC_DEPRECATED {
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global:
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@ -1271,4 +1276,4 @@ LIBC_PLATFORM {
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malloc_disable;
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malloc_enable;
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malloc_iterate;
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} LIBC_O;
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} LIBC_P;
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@ -1372,3 +1372,10 @@ TEST(UNISTD_TEST, exec_argv0_null) {
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ASSERT_EXIT(execve("/system/bin/run-as", args, envs), testing::ExitedWithCode(1),
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"<unknown>: usage: run-as");
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}
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TEST(UNISTD_TEST, getlogin_r) {
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char buf[LOGIN_NAME_MAX] = {};
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EXPECT_EQ(ERANGE, getlogin_r(buf, 0));
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EXPECT_EQ(0, getlogin_r(buf, sizeof(buf)));
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EXPECT_STREQ(getlogin(), buf);
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}
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