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#include "pwf.h" #include <pthread.h> #define FIX(x) (pw->pw_##x = pw->pw_##x-line+buf) static int getpw_r(const char *name, uid_t uid, struct passwd *pw, char *buf, size_t size, struct passwd **res) { char *line = 0; size_t len = 0; int rv = 0; int cs; pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs); rv = __getpw_a(name, uid, pw, &line, &len, res); if (*res && size < len) { *res = 0; rv = ERANGE; } if (*res) { memcpy(buf, line, len); FIX(name); FIX(passwd); FIX(gecos); FIX(dir); FIX(shell); } free(line); pthread_setcancelstate(cs, 0); if (rv) errno = rv; return rv; } int getpwnam_r(const char *name, struct passwd *pw, char *buf, size_t size, struct passwd **res) { return getpw_r(name, 0, pw, buf, size, res); } int getpwuid_r(uid_t uid, struct passwd *pw, char *buf, size_t size, struct passwd **res) { return getpw_r(0, uid, pw, buf, size, res); } |