diff options
Diffstat (limited to 'c/src/exec/libcsupport/src/getpwent.c')
| -rw-r--r-- | c/src/exec/libcsupport/src/getpwent.c | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/c/src/exec/libcsupport/src/getpwent.c b/c/src/exec/libcsupport/src/getpwent.c deleted file mode 100644 index 91b6550f59..0000000000 --- a/c/src/exec/libcsupport/src/getpwent.c +++ /dev/null @@ -1,248 +0,0 @@ -/* - * POSIX 1003.1b - 9.2.2 - User Database Access Routines - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#if HAVE_CONFIG_H -#include "config.h" -#endif - -#include <stdio.h> -#include <sys/types.h> -#include <pwd.h> -#include <errno.h> -#include <unistd.h> -#include <stdlib.h> -#include <string.h> -#include <limits.h> -#include <fcntl.h> -#include <unistd.h> - -#include <rtems/libio_.h> - -static struct passwd pw_passwd; /* password structure */ -static FILE *passwd_fp; - -/* - * The size of these buffers is arbitrary and there is no provision - * to protect any of them from overflowing. The scanf patterns - * need to be changed to prevent overflowing. In addition, - * the limits on these needs to be examined. - */ - -static char logname[8]; -static char password[1024]; -static char comment[1024]; -static char gecos[1024]; -static char dir[1024]; -static char shell[1024]; - -/* - * Initialize a useable but dummy /etc/passwd - * - * NOTE: Ignore all errors. - * - */ - -static char etc_passwd_initted = 0; - -void init_etc_passwd_group(void) -{ - FILE *fp; - - if ( etc_passwd_initted ) - return; - etc_passwd_initted = 1; - - (void) mkdir( "/etc", 0777); - - /* - * Initialize /etc/passwd - */ - - if ((fp = fopen ("/etc/passwd", "w")) == NULL) - return; - - fprintf( fp, "root:*:0:0:root,,,,:/:/bin/sh\n" - "rtems:*:1:1:RTEMS Application,,,,:/:/bin/sh\n" - "tty:!:2:2:tty owner,,,,:/:/bin/false\n" ); - - fclose( fp ); - - /* - * Initialize /etc/group - */ - - if ((fp = fopen ("/etc/group", "w")) == NULL) - return; - - fprintf( fp, "root:x:0:root\n" - "rtems:x:1:rtems\n" - "tty:x:2:tty\n" ); - - fclose( fp ); -} - -int getpwnam_r( - const char *name, - struct passwd *pwd, - char *buffer, - size_t bufsize, - struct passwd **result -) -{ - FILE *fp; - rtems_user_env_t * aux=rtems_current_user_env; /* save */ - - init_etc_passwd_group(); - rtems_current_user_env=&rtems_global_user_env; /* set root */ - - if ((fp = fopen ("/etc/passwd", "r")) == NULL) { - errno = EINVAL; - rtems_current_user_env=aux; /* restore */ - return -1; - } - - while (fgets (buffer, bufsize, fp)) { - sscanf (buffer, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%[^:]:%s\n", - logname, password, &pwd->pw_uid, - &pwd->pw_gid, comment, gecos, - dir, shell); - pwd->pw_name = logname; - pwd->pw_passwd = password; - pwd->pw_comment = comment; - pwd->pw_gecos = gecos; - pwd->pw_dir = dir; - pwd->pw_shell = shell; - - if (!strcmp (logname, name)) { - fclose (fp); - *result = pwd; - rtems_current_user_env=aux; /* restore */ - return 0; - } - } - fclose (fp); - errno = EINVAL; - rtems_current_user_env=aux; /* restore */ - return -1; -} - -struct passwd *getpwnam( - const char *name -) -{ - char buf[1024]; - struct passwd *p; - - if ( getpwnam_r( name, &pw_passwd, buf, 1024, &p ) ) - return NULL; - - return p; -} - -int getpwuid_r( - uid_t uid, - struct passwd *pwd, - char *buffer, - size_t bufsize, - struct passwd **result -) -{ - FILE *fp; - rtems_user_env_t * aux=rtems_current_user_env; /* save */ - - init_etc_passwd_group(); - rtems_current_user_env=&rtems_global_user_env; /* set root */ - - if ((fp = fopen ("/etc/passwd", "r")) == NULL) { - errno = EINVAL; - rtems_current_user_env=aux; /* restore */ - return -1; - } - - while (fgets (buffer, bufsize, fp)) { - sscanf (buffer, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%[^:]:%s\n", - logname, password, &pw_passwd.pw_uid, - &pw_passwd.pw_gid, comment, gecos, - dir, shell); - pwd->pw_name = logname; - pwd->pw_passwd = password; - pwd->pw_comment = comment; - pwd->pw_gecos = gecos; - pwd->pw_dir = dir; - pwd->pw_shell = shell; - - if (uid == pwd->pw_uid) { - fclose (fp); - *result = pwd; - rtems_current_user_env=aux; /* restore */ - return 0; - } - } - fclose (fp); - errno = EINVAL; - rtems_current_user_env=aux; /* restore */ - return -1; -} - -struct passwd *getpwuid( - uid_t uid -) -{ - char buf[1024]; - struct passwd *p; - - if ( getpwuid_r( uid, &pw_passwd, buf, 1024, &p ) ) - return NULL; - - return p; -} - -struct passwd *getpwent() -{ - char buf[1024]; - - if (passwd_fp == NULL) - return NULL; - - if (fgets (buf, sizeof (buf), passwd_fp) == NULL) - return NULL; - - sscanf (buf, "%[^:]:%[^:]:%d:%d:%[^:]:%[^:]:%[^:]:%s\n", - logname, password, &pw_passwd.pw_uid, - &pw_passwd.pw_gid, comment, gecos, - dir, shell); - pw_passwd.pw_name = logname; - pw_passwd.pw_passwd = password; - pw_passwd.pw_comment = comment; - pw_passwd.pw_gecos = gecos; - pw_passwd.pw_dir = dir; - pw_passwd.pw_shell = shell; - - return &pw_passwd; -} - -void setpwent( void ) -{ - rtems_user_env_t * aux=rtems_current_user_env; /* save */ - init_etc_passwd_group(); - rtems_current_user_env=&rtems_global_user_env; /* set root */ - - if (passwd_fp != NULL) - fclose (passwd_fp); - - passwd_fp = fopen ("/etc/passwd", "r"); - rtems_current_user_env=aux; /* restore */ -} - -void endpwent( void ) -{ - if (passwd_fp != NULL) - fclose (passwd_fp); -} |