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85 lines
2.1 KiB
85 lines
2.1 KiB
/*
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utils.c - common utilities for debian-installer
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Author - David Whedon
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Copyright (C) 2000-2001 David Whedon <dwhedon@debian.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <syslog.h>
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#define MAXLINE 512
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int
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execlog (const char *incmd)
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{
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FILE *output;
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char cmd[strlen (incmd) + 6];
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char line[MAXLINE];
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strcpy (cmd, incmd);
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openlog ("installer", LOG_PID | LOG_PERROR, LOG_USER);
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syslog (LOG_DEBUG, "running cmd '%s'", cmd);
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/* FIXME: this can cause the shell command if there's redirection
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already in the passed string */
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strcat (cmd, " 2>&1");
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output = popen (cmd, "r");
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while (fgets (line, MAXLINE, output) != NULL)
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{
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syslog (LOG_DEBUG, line);
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}
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closelog ();
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/* FIXME we aren't getting the return value from the actual command
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executed, not sure how to do that cleanly */
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return (pclose (output));
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}
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int
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check_dir (const char *dirname)
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{
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struct stat check;
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if (stat (dirname, &check) == -1)
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return -1;
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else
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return S_ISDIR (check.st_mode);
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}
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int
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snprintfcat (char *str, size_t size, const char *format, ...)
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{
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va_list ap;
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int retval;
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size_t len = strlen (str);
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va_start (ap, format);
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retval = vsnprintf (str + len, size - len, format, ap);
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va_end (ap);
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return retval;
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}
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