1 /* Copyright (C) 2003 Manuel Novoa III
3 * Licensed under GPL v2, or later. See file LICENSE in this tarball.
6 /* Nov 6, 2003 Initial version.
8 * NOTE: This implementation is quite strict about requiring all
9 * field seperators. It also does not allow leading whitespace
10 * except when processing the numeric fields. glibc is more
11 * lenient. See the various glibc difference comments below.
14 * Move to dynamic allocation of (currently statically allocated)
15 * buffers; especially for the group-related functions since
16 * large group member lists will cause error returns.
36 #define _PATH_SHADOW "/etc/shadow"
39 #define _PATH_PASSWD "/etc/passwd"
42 #define _PATH_GROUP "/etc/group"
45 /**********************************************************************/
46 /* Sizes for statically allocated buffers. */
48 /* If you change these values, also change _SC_GETPW_R_SIZE_MAX and
49 * _SC_GETGR_R_SIZE_MAX in libc/unistd/sysconf.c to match */
50 #define PWD_BUFFER_SIZE 256
51 #define GRP_BUFFER_SIZE 256
53 /**********************************************************************/
54 /* Prototypes for internal functions. */
56 extern int __parsepwent(void *pw, char *line);
57 extern int __parsegrent(void *gr, char *line);
58 extern int __parsespent(void *sp, char *line);
60 extern int __pgsreader(int (*__parserfunc)(void *d, char *line), void *data,
61 char *__restrict line_buff, size_t buflen, FILE *f);
64 #ifndef GETXXKEY_R_FUNC
65 #error GETXXKEY_R_FUNC is not defined!
67 /**********************************************************************/
68 #ifdef GETXXKEY_R_FUNC
70 int GETXXKEY_R_FUNC(DO_GETXXKEY_R_KEYTYPE key,
71 GETXXKEY_R_ENTTYPE *__restrict resultbuf,
72 char *__restrict buffer, size_t buflen,
73 GETXXKEY_R_ENTTYPE **__restrict result)
80 if (!(stream = fopen(DO_GETXXKEY_R_PATHNAME, "r"))) {
84 if (!(rv = __pgsreader(GETXXKEY_R_PARSER, resultbuf,
85 buffer, buflen, stream))
87 if (GETXXKEY_R_TEST(resultbuf)) { /* Found key? */
92 if (rv == ENOENT) { /* end-of-file encountered. */
105 /**********************************************************************/
106 #undef GETXXKEY_R_FUNC
107 #undef GETXXKEY_R_PARSER
108 #undef GETXXKEY_R_ENTTYPE
109 #undef GETXXKEY_R_TEST
110 #undef DO_GETXXKEY_R_KEYTYPE
111 #undef DO_GETXXKEY_R_PATHNAME