From b37e0da0b7dc72ddfa513e319ca71b5f5b8aeb7d Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Mon, 13 Nov 2006 22:13:33 +0100 Subject: Initial import --- src/logdir.c | 102 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 src/logdir.c (limited to 'src/logdir.c') diff --git a/src/logdir.c b/src/logdir.c new file mode 100644 index 0000000..8ed4b40 --- /dev/null +++ b/src/logdir.c @@ -0,0 +1,102 @@ +/*=========================================================================== + Copyright (c) 1998-2000, The Santa Cruz Operation + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + *Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + *Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + *Neither name of The Santa Cruz Operation nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS + IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + DAMAGE. + =========================================================================*/ + +/* + * logdir() + * + * This routine does not use the getpwent(3) library routine + * because the latter uses the stdio package. The allocation of + * storage in this package destroys the integrity of the shell's + * storage allocation. + */ + +#include +#include +#include "global.h" + +#define OURBUFSIZ 160 /* renamed: avoid conflict with */ + +static char const rcsid[] = "$Id: logdir.c,v 1.5 2002/07/28 15:40:07 broeker Exp $"; + +static char line[OURBUFSIZ+1]; + +/* Internal prototypes: */ +static char *nextfield(char *p); + + +static char * +nextfield(char *p) +{ + while (*p && *p != ':') + ++p; + if (*p) *p++ = 0; + return(p); +} + +char * +logdir(char *name) +{ + char *p; + int i, j; + int pwf; + + /* attempt to open the password file */ + if ((pwf = myopen("/etc/passwd", 0, 0)) == -1) + return(0); + + /* find the matching password entry */ + do { + /* get the next line in the password file */ + i = read(pwf, line, OURBUFSIZ); + for (j = 0; j < i; j++) + if (line[j] == '\n') + break; + /* return a null pointer if the whole file has been read */ + if (j >= i) + return(0); + line[++j] = 0; /* terminate the line */ + (void) lseek(pwf, (long) (j - i), 1); /* point at the next line */ + p = nextfield(line); /* get the logname */ + } while (*name != *line || /* fast pretest */ + strcmp(name, line) != 0); + (void) close(pwf); + + /* skip the intervening fields */ + p = nextfield(p); + p = nextfield(p); + p = nextfield(p); + p = nextfield(p); + + /* return the login directory */ + (void) nextfield(p); + return(p); +} -- cgit v1.2.3-54-g00ecf ue='0' selected='selected'>includemode:
Diffstat