diff options
| -rw-r--r-- | ChangeLog | 29 | ||||
| -rw-r--r-- | Makeconfig | 2 | ||||
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | gshadow/Makefile | 38 | ||||
| -rw-r--r-- | gshadow/Versions | 21 | ||||
| -rw-r--r-- | gshadow/fgetsgent.c | 88 | ||||
| -rw-r--r-- | gshadow/fgetsgent_r.c | 76 | ||||
| -rw-r--r-- | gshadow/getsgent.c | 30 | ||||
| -rw-r--r-- | gshadow/getsgent_r.c | 30 | ||||
| -rw-r--r-- | gshadow/getsgnam.c | 30 | ||||
| -rw-r--r-- | gshadow/getsgnam_r.c | 30 | ||||
| -rw-r--r-- | gshadow/gshadow.h | 131 | ||||
| -rw-r--r-- | gshadow/putsgent.c | 71 | ||||
| -rw-r--r-- | gshadow/sgetsgent.c | 78 | ||||
| -rw-r--r-- | gshadow/sgetsgent_r.c | 70 | ||||
| -rw-r--r-- | gshadow/tst-gshadow.c | 138 | ||||
| -rw-r--r-- | include/gshadow.h | 15 | ||||
| -rw-r--r-- | nss/Makefile | 4 | ||||
| -rw-r--r-- | nss/Versions | 7 | ||||
| -rw-r--r-- | nss/nss_files/files-parse.c | 88 | ||||
| -rw-r--r-- | nss/nss_files/files-sgrp.c | 38 | ||||
| -rw-r--r-- | nss/nsswitch.conf | 1 | ||||
| -rw-r--r-- | nss/sgrp-lookup.c | 24 | ||||
| -rw-r--r-- | sysdeps/generic/paths.h | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/paths.h | 1 |
25 files changed, 1018 insertions, 25 deletions
@@ -1,3 +1,32 @@ +2009-04-23 Ulrich Drepper <drepper@redhat.com> + + [BZ #9955] + * gshadow/Makefile: New file. + * gshadow/Versions: New file. + * gshadow/fgetsgent.c: New file. + * gshadow/fgetsgent_r.c: New file. + * gshadow/getsgent.c: New file. + * gshadow/getsgent_r.c: New file. + * gshadow/getsgnam.c: New file. + * gshadow/getsgnam_r.c: New file. + * gshadow/gshadow.h: New file. + * gshadow/putsgent.c: New file. + * gshadow/sgetsgent.c: New file. + * gshadow/sgetsgent_r.c: New file. + * gshadow/tst-gshadow.c: New file. + * include/gshadow.h: New file. + * Makeconfig (all-subdirs): Add gshadow. + * Makefile (installed-headers): Add gshadow/gshadow.h. + * nss/Makefile (databases): Add sgrp. + * nss/Versions: Add gshadow functions as private exports. + * nss/nsswitch.conf: Add gshadow entry. + * nss/sgrp-lookup.c: New file. + * nss/nss_files/files-parse.c: Add STRING_LIST macro. Rewrite + parse_list to handle STRING_LIST and TRAILING_LIST_PARSER. + * nss/nss_files/files-sgrp.c: New file. + * sysdeps/generic/paths.h: Add _PATH_GSHADOW. + * sysdeps/unix/sysv/linux/paths.h: Likewise. + 2009-04-22 Ulrich Drepper <drepper@redhat.com> * stdio-common/printf.h: Add missing const to register_printf_modifier. @@ -918,7 +918,7 @@ endif all-subdirs = csu assert ctype locale intl catgets math setjmp signal \ stdlib stdio-common libio malloc string wcsmbs time dirent \ grp pwd posix io termios resource misc socket sysvipc gmon \ - gnulib iconv iconvdata wctype manual shadow po argp \ + gnulib iconv iconvdata wctype manual shadow gshadow po argp \ crypt nss localedata timezone rt conform debug \ $(add-on-subdirs) $(dlfcn) $(binfmt-subdir) @@ -271,7 +271,7 @@ installed-headers = argp/argp.h assert/assert.h catgets/nl_types.h \ crypt/crypt.h ctype/ctype.h debug/execinfo.h \ dirent/dirent.h dlfcn/dlfcn.h elf/elf.h elf/link.h \ gmon/sys/gmon.h gmon/sys/gmon_out.h gmon/sys/profil.h \ - grp/grp.h iconv/iconv.h iconv/gconv.h \ + grp/grp.h gshadow/gshadow.h iconv/iconv.h iconv/gconv.h \ $(wildcard inet/netinet/*.h) \ $(wildcard inet/arpa/*.h inet/protocols/*.h) \ inet/aliases.h inet/ifaddrs.h inet/netinet/ip6.h \ diff --git a/gshadow/Makefile b/gshadow/Makefile new file mode 100644 index 0000000..0c3d42b --- /dev/null +++ b/gshadow/Makefile @@ -0,0 +1,38 @@ +# Copyright (C) 2009 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 Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 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 +# Lesser General Public License for more details. + +# You should have received a copy of the GNU Lesser General Public +# License along with the GNU C Library; if not, write to the Free +# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +# 02111-1307 USA. + +# +# Makefile for gshadow. +# +subdir := gshadow + +headers = gshadow.h +routines = getsgent getsgnam sgetsgent fgetsgent putsgent \ + getsgent_r getsgnam_r sgetsgent_r fgetsgent_r + +tests = tst-gshadow + +CFLAGS-getsgent_r.c = -fexceptions +CFLAGS-getsgent.c = -fexceptions +CFLAGS-fgetsgent.c = -fexceptions +CFLAGS-fgetsgent_r.c = -fexceptions -D_IO_MTSAFE_IO +CFLAGS-putsgent.c = -fexceptions -D_IO_MTSAFE_IO +CFLAGS-getsgnam.c = -fexceptions +CFLAGS-getsgnam_r.c = -fexceptions + +include ../Rules diff --git a/gshadow/Versions b/gshadow/Versions new file mode 100644 index 0000000..00a410b --- /dev/null +++ b/gshadow/Versions @@ -0,0 +1,21 @@ +libc { + GLIBC_2.10 { + # e* + endsgent; + + # f* + fgetsgent; fgetsgent_r; + + # g* + getsgent; getsgent_r; getsgnam; getsgnam_r; getsgent_r; getsgnam_r; + + # p* + putsgent; + + # s* + setsgent; + + # s* + sgetsgent; sgetsgent_r; + } +} diff --git a/gshadow/fgetsgent.c b/gshadow/fgetsgent.c new file mode 100644 index 0000000..098edfe --- /dev/null +++ b/gshadow/fgetsgent.c @@ -0,0 +1,88 @@ +/* Copyright (C) 2009 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <bits/libc-lock.h> +#include <gshadow.h> +#include <stdio.h> +#include <stdlib.h> + + +/* A reasonable size for a buffer to start with. */ +#define BUFLEN_SPWD 1024 + +/* We need to protect the dynamic buffer handling. */ +__libc_lock_define_initialized (static, lock); + +libc_freeres_ptr (static char *buffer); + +/* Read one shadow entry from the given stream. */ +struct sgrp * +fgetsgent (FILE *stream) +{ + static size_t buffer_size; + static struct sgrp resbuf; + fpos_t pos; + struct sgrp *result; + int save; + + if (fgetpos (stream, &pos) != 0) + return NULL; + + /* Get lock. */ + __libc_lock_lock (lock); + + /* Allocate buffer if not yet available. */ + if (buffer == NULL) + { + buffer_size = BUFLEN_SPWD; + buffer = malloc (buffer_size); + } + + while (buffer != NULL + && (__fgetsgent_r (stream, &resbuf, buffer, buffer_size, &result) + == ERANGE)) + { + char *new_buf; + buffer_size += BUFLEN_SPWD; + new_buf = realloc (buffer, buffer_size); + if (new_buf == NULL) + { + /* We are out of memory. Free the current buffer so that the + process gets a chance for a normal termination. */ + save = errno; + free (buffer); + __set_errno (save); + } + buffer = new_buf; + + /* Reset the stream. */ + if (fsetpos (stream, &pos) != 0) + buffer = NULL; + } + + if (buffer == NULL) + result = NULL; + + /* Release lock. Preserve error value. */ + save = errno; + __libc_lock_unlock (lock); + __set_errno (save); + + return result; +} diff --git a/gshadow/fgetsgent_r.c b/gshadow/fgetsgent_r.c new file mode 100644 index 0000000..25c05bf7 --- /dev/null +++ b/gshadow/fgetsgent_r.c @@ -0,0 +1,76 @@ +/* Copyright (C) 2009 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <ctype.h> +#include <errno.h> +#include <gshadow.h> +#include <stdio.h> + +/* Define a line parsing function using the common code + used in the nss_files module. */ + +#define STRUCTURE sgrp +#define ENTNAME sgent +#define EXTERN_PARSER 1 +struct sgent_data {}; + +#include <nss/nss_files/files-parse.c> + + +/* Read one shadow entry from the given stream. */ +int +__fgetsgent_r (FILE *stream, struct sgrp *resbuf, char *buffer, size_t buflen, + struct sgrp **result) +{ + char *p; + + _IO_flockfile (stream); + do + { + buffer[buflen - 1] = '\xff'; + p = fgets_unlocked (buffer, buflen, stream); + if (p == NULL && feof_unlocked (stream)) + { + _IO_funlockfile (stream); + *result = NULL; + __set_errno (ENOENT); + return errno; + } + if (p == NULL || buffer[buflen - 1] != '\xff') + { + _IO_funlockfile (stream); + *result = NULL; + __set_errno (ERANGE); + return errno; + } + + /* Skip leading blanks. */ + while (isspace (*p)) + ++p; + } while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */ + /* Parse the line. If it is invalid, loop to + get the next line of the file to parse. */ + ! parse_line (buffer, (void *) resbuf, (void *) buffer, buflen, + &errno)); + + _IO_funlockfile (stream); + + *result = resbuf; + return 0; +} +weak_alias (__fgetsgent_r, fgetsgent_r) diff --git a/gshadow/getsgent.c b/gshadow/getsgent.c new file mode 100644 index 0000000..544227c --- /dev/null +++ b/gshadow/getsgent.c @@ -0,0 +1,30 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2009. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <gshadow.h> + + +#define LOOKUP_TYPE struct sgrp +#define SETFUNC_NAME setsgent +#define GETFUNC_NAME getsgent +#define ENDFUNC_NAME endsgent +#define DATABASE_NAME gshadow +#define BUFLEN 1024 + +#include "../nss/getXXent.c" diff --git a/gshadow/getsgent_r.c b/gshadow/getsgent_r.c new file mode 100644 index 0000000..336110e --- /dev/null +++ b/gshadow/getsgent_r.c @@ -0,0 +1,30 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2009. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <gshadow.h> + + +#define LOOKUP_TYPE struct sgrp +#define SETFUNC_NAME setsgent +#define GETFUNC_NAME getsgent +#define ENDFUNC_NAME endsgent +#define DATABASE_NAME gshadow +#define BUFLEN 1024 + +#include "../nss/getXXent_r.c" diff --git a/gshadow/getsgnam.c b/gshadow/getsgnam.c new file mode 100644 index 0000000..7cd5b44 --- /dev/null +++ b/gshadow/getsgnam.c @@ -0,0 +1,30 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2009. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <gshadow.h> + + +#define LOOKUP_TYPE struct sgrp +#define FUNCTION_NAME getsgnam +#define DATABASE_NAME gshadow +#define ADD_PARAMS const char *name +#define ADD_VARIABLES name +#define BUFLEN 1024 + +#include "../nss/getXXbyYY.c" diff --git a/gshadow/getsgnam_r.c b/gshadow/getsgnam_r.c new file mode 100644 index 0000000..c89fb06 --- /dev/null +++ b/gshadow/getsgnam_r.c @@ -0,0 +1,30 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2009. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <gshadow.h> + + +#define LOOKUP_TYPE struct sgrp +#define FUNCTION_NAME getsgnam +#define DATABASE_NAME gshadow +#define ADD_PARAMS const char *name +#define ADD_VARIABLES name +#define BUFLEN 1024 + +#include "../nss/getXXbyYY_r.c" diff --git a/gshadow/gshadow.h b/gshadow/gshadow.h new file mode 100644 index 0000000..d0b28ae --- /dev/null +++ b/gshadow/gshadow.h @@ -0,0 +1,131 @@ +/* Copyright (C) 2009 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* Declaration of types and functions for shadow group suite. */ + +#ifndef _GSHADOW_H +#define _GSHADOW_H 1 + +#include <features.h> + +#include <paths.h> + +#define __need_FILE +#include <stdio.h> +#define __need_size_t +#include <stddef.h> + +/* Path to the user database files. */ +#define GSHADOW _PATH_GSHADOW + + +__BEGIN_DECLS + +/* Structure of the group file. */ +struct sgrp + { + char *sg_namp; /* Group name. */ + char *sg_passwd; /* Encrypted password. */ + char **sg_adm; /* Group administrator list. */ + char **sg_mem; /* Group member list. */ + }; + + +/* Open database for reading. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern void setsgent (void); + +/* Close database. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern void endsgent (void); + +/* Get next entry from database, perhaps after opening the file. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern struct sgrp *getsgent (void); + +/* Get shadow entry matching NAME. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern struct sgrp *getsgnam (__const char *__name); + +/* Read shadow entry from STRING. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern struct sgrp *sgetsgent (__const char *__string); + +/* Read next shadow entry from STREAM. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern struct sgrp *fgetsgent (FILE *__stream); + +/* Write line containing shadow password entry to stream. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern int putsgent (__const struct sgrp *__g, FILE *__stream); + + +#ifdef __USE_MISC +/* Reentrant versions of some of the functions above. + + These functions are not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation they are cancellation points and + therefore not marked with __THROW. */ +extern int getsgent_r (struct sgrp *__result_buf, char *__buffer, + size_t __buflen, struct sgrp **__result); + +extern int getsgnam_r (__const char *__name, struct sgrp *__result_buf, + char *__buffer, size_t __buflen, + struct sgrp **__result); + +extern int sgetsgent_r (__const char *__string, struct sgrp *__result_buf, + char *__buffer, size_t __buflen, + struct sgrp **__result); + +extern int fgetsgent_r (FILE *__stream, struct sgrp *__result_buf, + char *__buffer, size_t __buflen, + struct sgrp **__result); +#endif /* misc */ + +__END_DECLS + +#endif /* gshadow.h */ diff --git a/gshadow/putsgent.c b/gshadow/putsgent.c new file mode 100644 index 0000000..938a713 --- /dev/null +++ b/gshadow/putsgent.c @@ -0,0 +1,71 @@ +/* Copyright (C) 2009 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stdbool.h> +#include <stdio.h> +#include <gshadow.h> + +#define _S(x) x ? x : "" + + +/* Write an entry to the given stream. + This must know the format of the group file. */ +int +putsgent (const struct sgrp *g, FILE *stream) +{ + int errors = 0; + + _IO_flockfile (stream); + + if (fprintf (stream, "%s:%s:", g->sg_namp, _S (g->sg_passwd)) < 0) + ++errors; + + bool first = true; + char **sp = g->sg_adm; + if (sp != NULL) + while (*sp != NULL) + { + if (fprintf (stream, "%s%s", first ? "" : ",", *sp++) < 0) + { + ++errors; + break; + } + first = false; + } + if (putc_unlocked (':', stream) == EOF) + ++errors; + + first = true; + sp = g->sg_mem; + if (sp != NULL) + while (*sp != NULL) + { + if (fprintf (stream, "%s%s", first ? "" : ",", *sp++) < 0) + { + ++errors; + break; + } + first = false; + } + if (putc_unlocked ('\n', stream) == EOF) + ++errors; + + _IO_funlockfile (stream); + + return errors ? -1 : 0; +} diff --git a/gshadow/sgetsgent.c b/gshadow/sgetsgent.c new file mode 100644 index 0000000..94e1315 --- /dev/null +++ b/gshadow/sgetsgent.c @@ -0,0 +1,78 @@ +/* Copyright (C) 2009 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <bits/libc-lock.h> +#include <gshadow.h> +#include <stdlib.h> + + +/* A reasonable size for a buffer to start with. */ +#define BUFLEN_SPWD 1024 + +/* We need to protect the dynamic buffer handling. */ +__libc_lock_define_initialized (static, lock); + +/* Read one shadow entry from the given stream. */ +struct sgrp * +sgetsgent (const char *string) +{ + static char *buffer; + static size_t buffer_size; + static struct sgrp resbuf; + struct sgrp *result; + int save; + + /* Get lock. */ + __libc_lock_lock (lock); + + /* Allocate buffer if not yet available. */ + if (buffer == NULL) + { + buffer_size = BUFLEN_SPWD; + buffer = malloc (buffer_size); + } + + while (buffer != NULL + && __sgetsgent_r (string, &resbuf, buffer, buffer_size, &result) != 0 + && errno == ERANGE) + { + char *new_buf; + buffer_size += BUFLEN_SPWD; + new_buf = realloc (buffer, buffer_size); + if (new_buf == NULL) + { + /* We are out of memory. Free the current buffer so that the + process gets a chance for a normal termination. */ + save = errno; + free (buffer); + __set_errno (save); + } + buffer = new_buf; + } + + if (buffer == NULL) + result = NULL; + + /* Release lock. Preserve error value. */ + save = errno; + __libc_lock_unlock (lock); + __set_errno (save); + + return result; +} diff --git a/gshadow/sgetsgent_r.c b/gshadow/sgetsgent_r.c new file mode 100644 index 0000000..72c51fe --- /dev/null +++ b/gshadow/sgetsgent_r.c @@ -0,0 +1,70 @@ +/* Copyright (C) 2009 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <ctype.h> +#include <errno.h> +#include <gshadow.h> +#include <stdio.h> +#include <string.h> + +/* Define a line parsing function using the common code + used in the nss_files module. */ + +#define STRUCTURE sgrp +#define ENTNAME sgent +struct sgent_data {}; + + +#define TRAILING_LIST_MEMBER sg_mem +#define TRAILING_LIST_SEPARATOR_P(c) ((c) == ',') +#include <nss/nss_files/files-parse.c> +LINE_PARSER +(, + STRING_FIELD (result->sg_namp, ISCOLON, 0); + if (line[0] == '\0' + && (result->sg_namp[0] == '+' || result->sg_namp[0] == '-')) + { + result->sg_passwd = NULL; + result->sg_adm = NULL; + result->sg_mem = NULL; + } + else + { + STRING_FIELD (result->sg_passwd, ISCOLON, 0); + STRING_LIST (result->sg_adm, ':'); + } + ) + + +/* Read one shadow entry from the given stream. */ +int +__sgetsgent_r (const char *string, struct sgrp *resbuf, char *buffer, + size_t buflen, struct sgrp **result) +{ + char *sp; + if (string < buffer || string >= buffer + buflen) + sp = strncpy (buffer, string, buflen); + else + sp = (char *) string; + + int parse_result = parse_line (sp, resbuf, (void *) buffer, buflen, &errno); + *result = parse_result > 0 ? resbuf : NULL; + + return *result == NULL ? errno : 0; +} +weak_alias (__sgetsgent_r, sgetsgent_r) diff --git a/gshadow/tst-gshadow.c b/gshadow/tst-gshadow.c new file mode 100644 index 0000000..8c26a48 --- /dev/null +++ b/gshadow/tst-gshadow.c @@ -0,0 +1,138 @@ +#include <gshadow.h> +#include <stdio.h> +#include <string.h> + + +static const struct sgrp data[] = + { + { (char *) "one", (char *) "pwdone", + (char *[]) { (char *) "admoneone", (char *) "admonetwo", + (char *) "admonethree", NULL }, + (char *[]) { (char *) "memoneone", (char *) "memonetwo", + (char *) "memonethree", NULL } }, + { (char *) "two", (char *) "pwdtwo", + (char *[]) { (char *) "admtwoone", (char *) "admtwotwo", NULL }, + (char *[]) { (char *) "memtwoone", (char *) "memtwotwo", + (char *) "memtwothree", NULL } }, + { (char *) "three", (char *) "pwdthree", + (char *[]) { (char *) "admthreeone", (char *) "admthreetwo", NULL }, + (char *[]) { (char *) "memthreeone", (char *) "memthreetwo", NULL } }, + { (char *) "four", (char *) "pwdfour", + (char *[]) { (char *) "admfourone", (char *) "admfourtwo", NULL }, + (char *[]) { NULL } }, + { (char *) "five", (char *) "pwdfive", + (char *[]) { NULL }, + (char *[]) { (char *) "memfiveone", (char *) "memfivetwo", NULL } }, + }; +#define ndata (sizeof (data) / sizeof (data[0])) + + +int +main (void) +{ + FILE *fp = fopen ("/tmp/aaa", "w+");//tmpfile (); + if (fp == NULL) + { + puts ("cannot open temporary file"); + return 1; + } + + for (size_t i = 0; i < ndata; ++i) + if (putsgent (&data[i], fp) != 0) + { + printf ("putsgent call %zu failed\n", i + 1); + return 1; + } + + rewind (fp); + + int result = 0; + int seen = -1; + struct sgrp *g; + while ((g = fgetsgent (fp)) != NULL) + { + ++seen; + if (strcmp (g->sg_namp, data[seen].sg_namp) != 0) + { + printf ("sg_namp of entry %d does not match: %s vs %s\n", + seen + 1, g->sg_namp, data[seen].sg_namp); + result = 1; + } + if (strcmp (g->sg_passwd, data[seen].sg_passwd) != 0) + { + printf ("sg_passwd of entry %d does not match: %s vs %s\n", + seen + 1, g->sg_passwd, data[seen].sg_passwd); + result = 1; + } + if (g->sg_adm == NULL) + { + printf ("sg_adm of entry %d is NULL\n", seen + 1); + result = 1; + } + else + { + int i = 1; + char **sp1 = g->sg_adm; + char **sp2 = data[seen].sg_adm; + while (*sp1 != NULL && *sp2 != NULL) + { + if (strcmp (*sp1, *sp2) != 0) + { + printf ("sg_adm[%d] of entry %d does not match: %s vs %s\n", + i, seen + 1, *sp1, *sp2); + result = 1; + } + ++sp1; + ++sp2; + ++i; + } + if (*sp1 == NULL && *sp2 != NULL) + { + printf ("sg_adm of entry %d has too few entries\n", seen + 1); + result = 1; + } + else if (*sp1 != NULL && *sp2 == NULL) + { + printf ("sg_adm of entry %d has too many entries\n", seen + 1); + result = 1; + } + } + if (g->sg_mem == NULL) + { + printf ("sg_mem of entry %d is NULL\n", seen + 1); + result = 1; + } + else + { + int i = 1; + char **sp1 = g->sg_mem; + char **sp2 = data[seen].sg_mem; + while (*sp1 != NULL && *sp2 != NULL) + { + if (strcmp (*sp1, *sp2) != 0) + { + printf ("sg_mem[%d] of entry %d does not match: %s vs %s\n", + i, seen + 1, *sp1, *sp2); + result = 1; + } + ++sp1; + ++sp2; + ++i; + } + if (*sp1 == NULL && *sp2 != NULL) + { + printf ("sg_mem of entry %d has too few entries\n", seen + 1); + result = 1; + } + else if (*sp1 != NULL && *sp2 == NULL) + { + printf ("sg_mem of entry %d has too many entries\n", seen + 1); + result = 1; + } + } + } + + fclose (fp); + + return result; +} diff --git a/include/gshadow.h b/include/gshadow.h new file mode 100644 index 0000000..8a981f6 --- /dev/null +++ b/include/gshadow.h @@ -0,0 +1,15 @@ +#ifndef _GSHADOW_H +#include <gshadow/gshadow.h> + +extern int __fgetsgent_r (FILE *stream, struct sgrp *resbuf, char *buffer, + size_t buflen, struct sgrp **result); +extern int __sgetsgent_r (const char *string, struct sgrp *resbuf, + char *buffer, size_t buflen, struct sgrp **result); + +struct parser_data; +extern int _nss_files_parse_sgent (char *line, struct sgrp *result, + struct parser_data *data, + size_t datalen, int *errnop); +libc_hidden_proto (_nss_files_parse_sgent) + +#endif diff --git a/nss/Makefile b/nss/Makefile index f2ecadb..670e6b2 100644 --- a/nss/Makefile +++ b/nss/Makefile @@ -1,4 +1,4 @@ -# Copyright (C) 1996-1998,2000,2001,2002,2007 Free Software Foundation, Inc. +# Copyright (C) 1996-1998,2000-2002,2007,2009 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 @@ -34,7 +34,7 @@ routines = nsswitch getnssent getnssent_r digits_dots \ # Caution: if you add a database here, you must add its real name # in databases.def, too. databases = proto service hosts network grp pwd rpc ethers \ - spwd netgrp key alias + spwd netgrp key alias sgrp others := getent install-bin := getent diff --git a/nss/Versions b/nss/Versions index f7f0e56..7a9d67b 100644 --- a/nss/Versions +++ b/nss/Versions @@ -9,7 +9,7 @@ libc { } GLIBC_PRIVATE { _nss_files_parse_grent; _nss_files_parse_pwent; _nss_files_parse_spent; - __nss_disable_nscd; __nss_lookup_function; + __nss_disable_nscd; __nss_lookup_function; _nss_files_parse_sgent; __nss_passwd_lookup2; __nss_group_lookup2; __nss_hosts_lookup2; __nss_services_lookup2; __nss_next2; @@ -87,6 +87,11 @@ libnss_files { _nss_files_getspent_r; _nss_files_getspnam_r; + _nss_files_setsgent; + _nss_files_endsgent; + _nss_files_getsgent_r; + _nss_files_getsgnam_r; + _nss_netgroup_parseline; _nss_files_getpublickey; _nss_files_getsecretkey; diff --git a/nss/nss_files/files-parse.c b/nss/nss_files/files-parse.c index 66615da..3603762 100644 --- a/nss/nss_files/files-parse.c +++ b/nss/nss_files/files-parse.c @@ -103,6 +103,7 @@ parse_line (char *line, struct STRUCTURE *result, \ EXTRA_ARGS_DECL) \ { \ ENTDATA_DECL (data) \ + BUFFER_PREPARE \ char *p = strpbrk (line, EOLSET "\n"); \ if (p != NULL) \ *p = '\0'; \ @@ -127,6 +128,21 @@ nss_files_parse_hidden_def (parse_line) } \ } +# define STRING_LIST(variable, terminator_c) \ + { \ + char **list = parse_list (&line, buf_start, buf_end, terminator_c, \ + errnop); \ + if (list) \ + variable = list; \ + else \ + return -1; /* -1 indicates we ran out of space. */ \ + \ + /* Determine the new end of the buffer. */ \ + while (*list != NULL) \ + ++list; \ + buf_start = (char *) (list + 1); \ + } + /* Helper function. */ static inline uint32_t __attribute__ ((always_inline)) @@ -178,12 +194,39 @@ strtou32 (const char *nptr, char **endptr, int base) # ifndef TRAILING_LIST_MEMBER +# define BUFFER_PREPARE /* Nothing to do. */ # define TRAILING_LIST_PARSER /* Nothing to do. */ # else -# define TRAILING_LIST_PARSER \ +# define BUFFER_PREPARE \ + char *buf_start = NULL; \ + char *buf_end = (char *) data + datalen; \ + if (line >= data->linebuffer && line < buf_end) \ + /* Find the end of the line buffer, we will use the space in \ + DATA after it for storing the vector of pointers. */ \ + buf_start = strchr (line, '\0') + 1; \ + else \ + /* LINE does not point within DATA->linebuffer, so that space is \ + not being used for scratch space right now. We can use all of \ + it for the pointer vector storage. */ \ + buf_start = data->linebuffer; \ + +# define TRAILING_LIST_PARSER \ { \ - char **list = parse_list (line, data, datalen, errnop); \ + if (buf_start == NULL) \ + { \ + if (line >= data->linebuffer && line < buf_end) \ + /* Find the end of the line buffer, we will use the space in \ + DATA after it for storing the vector of pointers. */ \ + buf_start = strchr (line, '\0') + 1; \ + else \ + /* LINE does not point within DATA->linebuffer, so that space is \ + not being used for scratch space right now. We can use all of \ + it for the pointer vector storage. */ \ + buf_start = data->linebuffer; \ + } \ + \ + char **list = parse_list (&line, buf_start, buf_end, '\0', errnop); \ if (list) \ result->TRAILING_LIST_MEMBER = list; \ else \ @@ -192,19 +235,12 @@ strtou32 (const char *nptr, char **endptr, int base) static inline char ** __attribute ((always_inline)) -parse_list (char *line, struct parser_data *data, size_t datalen, int *errnop) +parse_list (char **linep, char *eol, char *buf_end, int terminator_c, + int *errnop) { - char *eol, **list, **p; - - if (line >= data->linebuffer && line < (char *) data + datalen) - /* Find the end of the line buffer, we will use the space in DATA after - it for storing the vector of pointers. */ - eol = strchr (line, '\0') + 1; - else - /* LINE does not point within DATA->linebuffer, so that space is - not being used for scratch space right now. We can use all of - it for the pointer vector storage. */ - eol = data->linebuffer; + char *line = *linep; + char **list, **p; + /* Adjust the pointer so it is aligned for storing pointers. */ eol += __alignof__ (char *) - 1; eol -= (eol - (char *) 0) % __alignof__ (char *); @@ -214,25 +250,30 @@ parse_list (char *line, struct parser_data *data, size_t datalen, int *errnop) p = list; while (1) { - char *elt; - - if ((size_t) ((char *) &p[1] - (char *) data) > datalen) + if ((char *) (p + 2) > buf_end) { /* We cannot fit another pointer in the buffer. */ *errnop = ERANGE; return NULL; } + if (*line == '\0') break; + if (*line == terminator_c) + { + ++line; + break; + } /* Skip leading white space. This might not be portable but useful. */ while (isspace (*line)) ++line; - elt = line; + char *elt = line; while (1) { - if (*line == '\0' || TRAILING_LIST_SEPARATOR_P (*line)) + if (*line == '\0' || *line == terminator_c + || TRAILING_LIST_SEPARATOR_P (*line)) { /* End of the next entry. */ if (line > elt) @@ -241,13 +282,20 @@ parse_list (char *line, struct parser_data *data, size_t datalen, int *errnop) /* Terminate string if necessary. */ if (*line != '\0') - *line++ = '\0'; + { + char endc = *line; + *line++ = '\0'; + if (endc == terminator_c) + goto out; + } break; } ++line; } } + out: *p = NULL; + *linep = line; return list; } diff --git a/nss/nss_files/files-sgrp.c b/nss/nss_files/files-sgrp.c new file mode 100644 index 0000000..4e12cd8 --- /dev/null +++ b/nss/nss_files/files-sgrp.c @@ -0,0 +1,38 @@ +/* User file parser in nss_files module. + Copyright (C) 2009 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <gshadow.h> + +#define STRUCTURE sgrp +#define ENTNAME sgent +#define DATABASE "gshadow" +struct sgent_data {}; + +/* Our parser function is already defined in sgetspent_r.c, so use that + to parse lines from the database file. */ +#define EXTERN_PARSER +#include "files-parse.c" +#include GENERIC + +DB_LOOKUP (sgnam, 1 + strlen (name), (".%s", name), + { + if (name[0] != '+' && name[0] != '-' + && ! strcmp (name, result->sg_namp)) + break; + }, const char *name) diff --git a/nss/nsswitch.conf b/nss/nsswitch.conf index 63a7875..4d2a763 100644 --- a/nss/nsswitch.conf +++ b/nss/nsswitch.conf @@ -6,6 +6,7 @@ passwd: db files group: db files shadow: db files +gshadow: files hosts: files dns networks: files dns diff --git a/nss/sgrp-lookup.c b/nss/sgrp-lookup.c new file mode 100644 index 0000000..be3933f --- /dev/null +++ b/nss/sgrp-lookup.c @@ -0,0 +1,24 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2009. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define DATABASE_NAME gshadow +#define ALTERNATE_NAME group +#define DEFAULT_CONFIG "files" + +#include "XXX-lookup.c" diff --git a/sysdeps/generic/paths.h b/sysdeps/generic/paths.h index 03bf0f3..439992f 100644 --- a/sysdeps/generic/paths.h +++ b/sysdeps/generic/paths.h @@ -44,6 +44,7 @@ #define _PATH_DEVDB "/var/run/dev.db" #define _PATH_DEVNULL "/dev/null" #define _PATH_DRUM "/dev/drum" +#define _PATH_GSHADOW "/etc/gshadow" #define _PATH_KMEM "/dev/kmem" #define _PATH_MAILDIR "/var/mail" #define _PATH_LASTLOG "/var/log/lastlog" diff --git a/sysdeps/unix/sysv/linux/paths.h b/sysdeps/unix/sysv/linux/paths.h index fb2c77e..f4860f2 100644 --- a/sysdeps/unix/sysv/linux/paths.h +++ b/sysdeps/unix/sysv/linux/paths.h @@ -44,6 +44,7 @@ #define _PATH_DEVDB "/var/run/dev.db" #define _PATH_DEVNULL "/dev/null" #define _PATH_DRUM "/dev/drum" +#define _PATH_GSHADOW "/etc/gshadow" #define _PATH_KLOG "/proc/kmsg" #define _PATH_KMEM "/dev/kmem" #define _PATH_LASTLOG "/var/log/lastlog" |