mirror of
https://github.com/fluencelabs/musl
synced 2025-06-02 17:41:37 +00:00
fc5a96c9c8
the wrong condition was used in determining the presence of a result that needs space/copying for the _r functions. a zero return value does not necessarily mean success; it can also be a non-error negative result: no such user/group.
42 lines
881 B
C
42 lines
881 B
C
#include "pwf.h"
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#include <pthread.h>
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#define FIX(x) (pw->pw_##x = pw->pw_##x-line+buf)
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static int getpw_r(const char *name, uid_t uid, struct passwd *pw, char *buf, size_t size, struct passwd **res)
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{
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char *line = 0;
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size_t len = 0;
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int rv = 0;
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int cs;
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pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
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rv = __getpw_a(name, uid, pw, &line, &len, res);
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if (*res && size < len) {
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*res = 0;
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rv = ERANGE;
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}
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if (*res) {
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memcpy(buf, line, len);
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FIX(name);
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FIX(passwd);
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FIX(gecos);
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FIX(dir);
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FIX(shell);
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}
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free(line);
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pthread_setcancelstate(cs, 0);
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return rv;
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}
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int getpwnam_r(const char *name, struct passwd *pw, char *buf, size_t size, struct passwd **res)
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{
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return getpw_r(name, 0, pw, buf, size, res);
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}
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int getpwuid_r(uid_t uid, struct passwd *pw, char *buf, size_t size, struct passwd **res)
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{
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return getpw_r(0, uid, pw, buf, size, res);
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}
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