diff options
Diffstat (limited to 'pwd')
| -rw-r--r-- | pwd/Makefile | 26 | ||||
| -rw-r--r-- | pwd/fgetpwent.c | 40 | ||||
| -rw-r--r-- | pwd/getpw.c | 48 | ||||
| -rw-r--r-- | pwd/getpwent.c | 67 | ||||
| -rw-r--r-- | pwd/getpwnam.c | 50 | ||||
| -rw-r--r-- | pwd/getpwuid.c | 50 | ||||
| -rw-r--r-- | pwd/putpwent.c | 43 | ||||
| -rw-r--r-- | pwd/pwd.h | 92 | ||||
| -rw-r--r-- | pwd/pwdopen.c | 28 | ||||
| -rw-r--r-- | pwd/pwdread.c | 116 |
10 files changed, 560 insertions, 0 deletions
diff --git a/pwd/Makefile b/pwd/Makefile new file mode 100644 index 0000000000..b33700a95f --- /dev/null +++ b/pwd/Makefile @@ -0,0 +1,26 @@ +# Copyright (C) 1991 Free Software Foundation, Inc. +# This file is part of the GNU C Library. + +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Library General Public License as +# published by the Free Software Foundation; either version 2 of the +# License, or (at your option) any later version. + +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Library General Public License for more details. + +# You should have received a copy of the GNU Library General Public +# License along with the GNU C Library; see the file COPYING.LIB. If +# not, write to the Free Software Foundation, Inc., 675 Mass Ave, +# Cambridge, MA 02139, USA. + +# +# Sub-makefile for pwd portion of the library. +# +subdir := pwd + +routines := pwdopen pwdread fgetpwent getpw getpwent getpwnam getpwuid putpwent + +include ../Rules diff --git a/pwd/fgetpwent.c b/pwd/fgetpwent.c new file mode 100644 index 0000000000..4a21cbb59a --- /dev/null +++ b/pwd/fgetpwent.c @@ -0,0 +1,40 @@ +/* Copyright (C) 1991 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <errno.h> +#include <limits.h> +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#include <pwd.h> + +/* Read one entry from the given stream. */ +struct passwd * +DEFUN(fgetpwent, (stream), FILE *stream) +{ + static PTR info = NULL; + if (info == NULL) + { + info = __pwdalloc(); + if (info == NULL) + return(NULL); + } + + return(__pwdread(stream, info)); +} diff --git a/pwd/getpw.c b/pwd/getpw.c new file mode 100644 index 0000000000..5bd5c8267a --- /dev/null +++ b/pwd/getpw.c @@ -0,0 +1,48 @@ +/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <errno.h> +#include <stdio.h> +#include <pwd.h> + + +/* Re-construct the password-file line for the given uid + in the given buffer. This knows the format that the caller + will expect, but this need not be the format of the password file. */ +int +DEFUN(getpw, (uid, buf), __uid_t uid AND register char *buf) +{ + register struct passwd *p; + + if (buf == NULL) + { + errno = EINVAL; + return -1; + } + + p = getpwuid (uid); + if (p == NULL) + return -1; + + if (sprintf (buf, "%s:%s:%u:%u:%s:%s:%s", p->pw_name, p->pw_passwd, + p->pw_uid, p->pw_gid, p->pw_gecos, p->pw_dir, p->pw_shell) < 0) + return -1; + + return 0; +} diff --git a/pwd/getpwent.c b/pwd/getpwent.c new file mode 100644 index 0000000000..1c88950f11 --- /dev/null +++ b/pwd/getpwent.c @@ -0,0 +1,67 @@ +/* Copyright (C) 1991 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <stddef.h> +#include <stdio.h> +#include <pwd.h> + +static FILE *stream = NULL; + +/* Rewind the stream. */ +void +DEFUN_VOID(setpwent) +{ + if (stream != NULL) + rewind(stream); +} + + +/* Close the stream. */ +void +DEFUN_VOID(endpwent) +{ + if (stream != NULL) + { + (void) fclose(stream); + stream = NULL; + } +} + + +/* Return one entry from the password file. */ +struct passwd * +DEFUN_VOID(getpwent) +{ + static PTR info = NULL; + if (info == NULL) + { + info = __pwdalloc(); + if (info == NULL) + return(NULL); + } + + if (stream == NULL) + { + stream = __pwdopen(); + if (stream == NULL) + return(NULL); + } + + return(__pwdread(stream, info)); +} diff --git a/pwd/getpwnam.c b/pwd/getpwnam.c new file mode 100644 index 0000000000..1e7ea5c891 --- /dev/null +++ b/pwd/getpwnam.c @@ -0,0 +1,50 @@ +/* Copyright (C) 1991 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#include <pwd.h> + +/* Search for an entry with a matching name. */ +struct passwd * +DEFUN(getpwnam, (name), register CONST char *name) +{ + static PTR info = NULL; + register FILE *stream; + register struct passwd *p; + + if (info == NULL) + { + info = __pwdalloc(); + if (info == NULL) + return(NULL); + } + + stream = __pwdopen(); + if (stream == NULL) + return(NULL); + + while ((p = __pwdread(stream, info)) != NULL) + if (!strcmp(p->pw_name, name)) + break; + + (void) fclose(stream); + return(p); +} diff --git a/pwd/getpwuid.c b/pwd/getpwuid.c new file mode 100644 index 0000000000..30e40322db --- /dev/null +++ b/pwd/getpwuid.c @@ -0,0 +1,50 @@ +/* Copyright (C) 1991 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <stddef.h> +#include <stdio.h> +#include <pwd.h> +#include <sys/types.h> + +/* Search for an entry with a matching uid. */ +struct passwd * +DEFUN(getpwuid, (uid), register uid_t uid) +{ + static PTR info; + register FILE *stream; + register struct passwd *p; + + if (info == NULL) + { + info = __pwdalloc(); + if (info == NULL) + return(NULL); + } + + stream = __pwdopen(); + if (stream == NULL) + return(NULL); + + while ((p = __pwdread(stream, info)) != NULL) + if (p->pw_uid == uid) + break; + + (void) fclose(stream); + return(p); +} diff --git a/pwd/putpwent.c b/pwd/putpwent.c new file mode 100644 index 0000000000..ad8a81b3a3 --- /dev/null +++ b/pwd/putpwent.c @@ -0,0 +1,43 @@ +/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <errno.h> +#include <stdio.h> +#include <pwd.h> + + +/* Write an entry to the given stream. + This must know the format of the password file. */ +int +DEFUN(putpwent, (p, stream), register CONST struct passwd *p AND FILE *stream) +{ + if (p == NULL || stream == NULL) + { + errno = EINVAL; + return -1; + } + + if (fprintf (stream, "%s:%s:%u:%u:%s:%s:%s\n", + p->pw_name, p->pw_passwd, + p->pw_uid, p->pw_gid, + p->pw_gecos, p->pw_dir, p->pw_shell) < 0) + return(-1); + + return(0); +} diff --git a/pwd/pwd.h b/pwd/pwd.h new file mode 100644 index 0000000000..c72c37df40 --- /dev/null +++ b/pwd/pwd.h @@ -0,0 +1,92 @@ +/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +/* + * POSIX Standard: 9.2.2 User Database Access <pwd.h> + */ + +#ifndef _PWD_H + +#define _PWD_H 1 +#include <features.h> + +__BEGIN_DECLS + +#include <gnu/types.h> + + +/* The passwd structure. */ +struct passwd +{ + char *pw_name; /* Username. */ + char *pw_passwd; /* Password. */ + __uid_t pw_uid; /* User ID. */ + __gid_t pw_gid; /* Group ID. */ + char *pw_gecos; /* Real name. */ + char *pw_dir; /* Home directory. */ + char *pw_shell; /* Shell program. */ +}; + + +#if defined(__USE_SVID) || defined(__USE_GNU) +#define __need_FILE +#include <stdio.h> +#endif + +#ifdef __USE_GNU +/* Return a new stream open on the password file. */ +extern FILE *__pwdopen __P ((void)); + +/* Read a password entry from STREAM, filling in P. + Return the `struct passwd' of P if successful, NULL on failure. */ +extern struct passwd *__pwdread __P ((FILE * __stream, __ptr_t __p)); + +/* Return a chunk of memory containing pre-initialized data for __pwdread. */ +extern __ptr_t __pwdalloc __P ((void)); +#endif + + +#if defined(__USE_SVID) || defined(__USE_MISC) +/* Rewind the password-file stream. */ +extern void setpwent __P ((void)); + +/* Close the password-file stream. */ +extern void endpwent __P ((void)); + +/* Read an entry from the password-file stream, opening it if necessary. */ +extern struct passwd *getpwent __P ((void)); +#endif + +#ifdef __USE_SVID +/* Read an entry from STREAM. */ +extern struct passwd *fgetpwent __P ((FILE * __stream)); + +/* Write the given entry onto the given stream. */ +extern int putpwent __P ((__const struct passwd * __p, FILE * __f)); +#endif + +/* Search for an entry with a matching user ID. */ +extern struct passwd *getpwuid __P ((__uid_t __uid)); + +/* Search for an entry with a matching username. */ +extern struct passwd *getpwnam __P ((__const char *__name)); + + +__END_DECLS + +#endif /* pwd.h */ diff --git a/pwd/pwdopen.c b/pwd/pwdopen.c new file mode 100644 index 0000000000..6d35ab9441 --- /dev/null +++ b/pwd/pwdopen.c @@ -0,0 +1,28 @@ +/* Copyright (C) 1991 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <stdio.h> +#include <pwd.h> + +/* Return a new stream open on the password file. */ +FILE * +DEFUN_VOID(__pwdopen) +{ + return(fopen("/etc/passwd", "r")); +} diff --git a/pwd/pwdread.c b/pwd/pwdread.c new file mode 100644 index 0000000000..0ce27d77b9 --- /dev/null +++ b/pwd/pwdread.c @@ -0,0 +1,116 @@ +/* Copyright (C) 1991, 1992 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <errno.h> +#include <limits.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <pwd.h> +#include <sys/types.h> + + +/* This is the function that all the others are based on. + The format of the password file is known only here. */ + +/* Structure containing info kept by each __pwdread caller. */ +typedef struct + { + char *buf; + size_t buflen; + struct passwd p; + } pwdread_info; + + +/* Return a chunk of memory containing a pre-initialized `pwdread_info'. */ +PTR +DEFUN_VOID(__pwdalloc) +{ + pwdread_info *info = (PTR) malloc (sizeof(pwdread_info)); + if (info == NULL) + return NULL; + info->buf = NULL; + info->buflen = 0; + return info; +} + +/* Read a password entry from STREAM, filling in P. */ +struct passwd * +DEFUN(__pwdread, (stream, p), FILE *stream AND PTR CONST p) +{ + register pwdread_info *CONST info = (pwdread_info *) p; + char *start, *end; + + /* Idiocy checks. */ + if (stream == NULL) + { + errno = EINVAL; + return NULL; + } + + do + if (__getline (&info->buf, &info->buflen, stream) == -1) + return NULL; + while (info->buf[0] == '#'); + + start = info->buf; + end = strchr (start, ':'); + if (end == NULL) + return NULL; + *end = '\0'; + info->p.pw_name = start; + + start = end + 1; + end = strchr (start, ':'); + if (end == NULL) + return NULL; + *end = '\0'; + info->p.pw_passwd = start; + + info->p.pw_uid = (uid_t) strtol (end + 1, &end, 10); + if (*end != ':') + return NULL; + info->p.pw_gid = (gid_t) strtol (end + 1, &end, 10); + if (*end != ':') + return NULL; + + start = end + 1; + end = strchr (start, ':'); + if (end == NULL) + return NULL; + *end = '\0'; + info->p.pw_gecos = start; + + start = end + 1; + end = strchr (start, ':'); + if (end == NULL) + return NULL; + *end = '\0'; + info->p.pw_dir = start; + + start = end + 1; + end = strchr (start, '\n'); + if (end == NULL) + return NULL; + *end = '\0'; + info->p.pw_shell = start; + + return &info->p; +} |