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 staticly allocated)
15 * buffers; especially for the group-related functions since
16 * large group member lists will cause error returns.
35 #define _PATH_SHADOW "/etc/shadow"
38 #define _PATH_PASSWD "/etc/passwd"
41 #define _PATH_GROUP "/etc/group"
44 /**********************************************************************/
45 /* Sizes for staticly allocated buffers. */
47 /* If you change these values, also change _SC_GETPW_R_SIZE_MAX and
48 * _SC_GETGR_R_SIZE_MAX in libc/unistd/sysconf.c to match */
49 #define PWD_BUFFER_SIZE 256
50 #define GRP_BUFFER_SIZE 256
52 /**********************************************************************/
53 /* Prototypes for internal functions. */
55 extern int __parsepwent(void *pw, char *line);
56 extern int __parsegrent(void *gr, char *line);
57 extern int __parsespent(void *sp, char *line);
59 extern int __pgsreader(int (*__parserfunc)(void *d, char *line), void *data,
60 char *__restrict line_buff, size_t buflen, FILE *f);
63 #ifndef GETXXKEY_R_FUNC
64 #error GETXXKEY_R_FUNC is not defined!
66 /**********************************************************************/
67 #ifdef GETXXKEY_R_FUNC
69 int GETXXKEY_R_FUNC(DO_GETXXKEY_R_KEYTYPE key,
70 GETXXKEY_R_ENTTYPE *__restrict resultbuf,
71 char *__restrict buffer, size_t buflen,
72 GETXXKEY_R_ENTTYPE **__restrict result)
79 if (!(stream = fopen(DO_GETXXKEY_R_PATHNAME, "r"))) {
83 if (!(rv = __pgsreader(GETXXKEY_R_PARSER, resultbuf,
84 buffer, buflen, stream))
86 if (GETXXKEY_R_TEST(resultbuf)) { /* Found key? */
91 if (rv == ENOENT) { /* end-of-file encountered. */
104 /**********************************************************************/
105 #undef GETXXKEY_R_FUNC
106 #undef GETXXKEY_R_PARSER
107 #undef GETXXKEY_R_ENTTYPE
108 #undef GETXXKEY_R_TEST
109 #undef DO_GETXXKEY_R_KEYTYPE
110 #undef DO_GETXXKEY_R_PATHNAME