14887Schin /*********************************************************************** 24887Schin * * 34887Schin * This software is part of the ast package * 4*8462SApril.Chin@Sun.COM * Copyright (c) 1985-2008 AT&T Intellectual Property * 54887Schin * and is licensed under the * 64887Schin * Common Public License, Version 1.0 * 7*8462SApril.Chin@Sun.COM * by AT&T Intellectual Property * 84887Schin * * 94887Schin * A copy of the License is available at * 104887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 114887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 124887Schin * * 134887Schin * Information and Software Systems Research * 144887Schin * AT&T Research * 154887Schin * Florham Park NJ * 164887Schin * * 174887Schin * Glenn Fowler <gsf@research.att.com> * 184887Schin * David Korn <dgk@research.att.com> * 194887Schin * Phong Vo <kpv@research.att.com> * 204887Schin * * 214887Schin ***********************************************************************/ 224887Schin #pragma prototyped 234887Schin /* 244887Schin * Glenn Fowler 254887Schin * AT&T Bell Laboratories 264887Schin * 274887Schin * uid name -> number 284887Schin */ 294887Schin 304887Schin #if defined(__STDPP__directive) && defined(__STDPP__hide) 314887Schin __STDPP__directive pragma pp:hide getpwnam getpwuid 324887Schin #else 334887Schin #define getpwnam ______getpwnam 344887Schin #define getpwuid ______getpwuid 354887Schin #endif 364887Schin 374887Schin #include <ast.h> 384887Schin #include <cdt.h> 394887Schin #include <pwd.h> 404887Schin 414887Schin #if defined(__STDPP__directive) && defined(__STDPP__hide) 424887Schin __STDPP__directive pragma pp:nohide getpwnam getpwuid 434887Schin #else 444887Schin #undef getpwnam 454887Schin #undef getpwuid 464887Schin #endif 474887Schin 484887Schin extern struct passwd* getpwnam(const char*); 494887Schin extern struct passwd* getpwuid(uid_t); 504887Schin 514887Schin typedef struct Id_s 524887Schin { 534887Schin Dtlink_t link; 544887Schin int id; 554887Schin char name[1]; 564887Schin } Id_t; 574887Schin 584887Schin /* 594887Schin * return uid number given uid name 604887Schin * -1 on first error for a given name 614887Schin * -2 on subsequent errors for a given name 624887Schin */ 634887Schin 644887Schin int 654887Schin struid(const char* name) 664887Schin { 674887Schin register Id_t* ip; 684887Schin register struct passwd* pw; 694887Schin int id; 704887Schin char* e; 714887Schin 724887Schin static Dt_t* dict; 734887Schin static Dtdisc_t disc; 744887Schin 754887Schin if (!dict) 764887Schin { 774887Schin disc.key = offsetof(Id_t, name); 784887Schin dict = dtopen(&disc, Dthash); 794887Schin } 804887Schin else if (ip = (Id_t*)dtmatch(dict, name)) 814887Schin return ip->id; 824887Schin if (pw = getpwnam(name)) 834887Schin id = pw->pw_uid; 844887Schin else 854887Schin { 864887Schin id = strtol(name, &e, 0); 874887Schin #if _WINIX 884887Schin if (!*e) 894887Schin { 904887Schin if (!getpwuid(id)) 914887Schin id = -1; 924887Schin } 934887Schin else if (streq(name, "root") && (pw = getpwnam("Administrator"))) 944887Schin id = pw->pw_uid; 954887Schin else 964887Schin id = -1; 974887Schin #else 984887Schin if (*e || !getpwuid(id)) 994887Schin id = -1; 1004887Schin #endif 1014887Schin } 1024887Schin if (dict && (ip = newof(0, Id_t, 1, strlen(name)))) 1034887Schin { 1044887Schin strcpy(ip->name, name); 1054887Schin ip->id = id >= 0 ? id : -2; 1064887Schin dtinsert(dict, ip); 1074887Schin } 1084887Schin return id; 1094887Schin } 110