/* $Id: prand_conf.c,v 1.7 2001/03/07 06:46:33 marka Exp $ * * Portions Copyright (c) 1995-1998 by TIS Labs at Network Assoociates Inc. * Portions Copyright (c) 1998-1998 by TIS Labs @ Network Associates Inc. * * Permission to use, copy modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND NETWORK ASSOCIATES * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL * TRUSTED INFORMATION SYSTEMS BE LIABLE FOR ANY SPECIAL, DIRECT, * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION * WITH THE USE OR PERFORMANCE OF THE SOFTWARE. * * program to find where system commands reside * and what directores are avialable for inspection * this information is stored in the file prand_conf.h in current directory * * function my_find get variable number of arguments * the first argument is the name of the command * all remaining arguments are list of directories to search for the command in * this function returns the path to the command */ #include #include #include #include #include #include #define LINE_MAX 256 int my_find(char *cmd, char **dir) { int curr = 0, c_len, i; char cmd_line[LINE_MAX]; memset(cmd_line, 0, sizeof(cmd_line)); c_len = strlen(cmd); for (i = 0; dir[i]; i++) { curr = strlen(dir[i]); if (curr + c_len < sizeof(cmd_line)-3) { sprintf(cmd_line, "%s%s",dir[i], cmd); if (access(cmd_line, X_OK) == 0) return (i); memset(cmd_line, 0, c_len + curr + 2); } } return (0); } /* * function to simulate the ` ` operator in perl return the number * of bytes read from the pipe */ int pipe_run(char *cmd_line) { FILE *pd; char scratch[LINE_MAX]; int ex, no_bytes = 0, no = 1; pd = popen(cmd_line, "r"); for (; (pd != NULL) && (no > 0); no_bytes += no) no = fread(scratch, sizeof(char), sizeof(scratch), pd); ex = pclose(pd); return (no_bytes); } /* * function that executes a command with certain flags and checks that the * output is at least certain length * First parameter the command * Second parameter is ther flags * third parameter is the number of bytes required * output is 1 if the command works 0 if not * This function writes to the include file if */ int ex(FILE *fd, char *path, char *cmd, char *arg, int lower_bound) { char line[LINE_MAX]; if (strlen(path) + strlen(cmd) + strlen(arg) < sizeof(line)-7) { memset(line, 0, sizeof(line)); sprintf(line, "%s%s %s 2>&1", path, cmd, arg); if (pipe_run(line) > lower_bound) { fprintf(fd,"\t\"%s\",\n", line); return (1); } } return (0); } int main() { extern int errno; FILE *fd; int res, vm, i; int ps, arp, net, dig, cmd; /* * set up list of directories where each command may be found in */ char *arp_path[] = {"/usr/sbin", "/sbin", "/usr/etc/", "/etc/", "/usr/bin/", NULL}; char *ps_path[] = {"/usr/bin", "/bin/", NULL}; char *net_path[] = {"/usr/ucb/", "/usr/bin/", "/usr/etc/", "/usr/sbin/", "/bin/", NULL}; char *dig_path[] = {"/usr/bin/", "/usr/local/bin/", NULL}; char **df_path = ps_path; char *uptime_path[] = {"/usr/ucb/", "/usr/bin/", "/usr/bsd/", NULL}; char *iostat_path[] = { "/usr/bin/", "/bin/", "/usr/sbin/", NULL}; char *vmstat_path[] = {"/usr/ucb/", "/usr/bin/", "/usr/sbin/", NULL}; char *vm_stat_path[] = {"/usr/ucb/", "/usr/bin/", NULL}; char **w_path = uptime_path; /* find which directories exist */ char *dirs[] = {"/tmp", "/usr/tmp", "/var/tmp", ".", "/", "/var/spool", "/usr/spool", "/usr/adm", "/var/adm", "/dev", "/usr/mail", "/var/spool/mail", "/var/mail", "/home", "/usr/home", NULL}; char *files[] = {"/proc/stat", "/proc/rtc", "/proc/meminfo", "/proc/interrupts", "/proc/self/status", "/proc/self/maps", "/proc/curproc/status", "/proc/curproc/map", "/var/log/messages", "/var/log/wtmp", "/var/log/lastlog", "/var/adm/messages", "/var/adm/wtmp", "/var/adm/lastlog", NULL}; struct stat st; time_t tim; /* main program: */ if ((fd = fopen("prand_conf.h", "w")) == NULL) { perror("Failed creating file prand_conf.h"); exit(errno); } fprintf(fd, "#ifndef _PRAND_CMD_H_\n#define _PRAND_CMD_H_\n\n"); fprintf(fd, "static const char *cmds[] = {\n"); if ((ps = my_find("ps", ps_path)) >= 0) res = ex(fd, ps_path[ps], "ps","-axlw", 460) || ex(fd, ps_path[ps], "ps", "-ef", 300) || ex(fd, ps_path[ps], "ps", "-ale", 300); if ((arp = my_find("arp", arp_path)) >= 0) res = ex(fd, arp_path[arp], "arp", "-n -a", 40); if ((net = my_find("netstat", net_path)) >= 0) res = ex(fd, net_path[net], "netstat", "-an", 1000); if ((cmd = my_find("df", df_path)) >= 0) res = ex(fd, df_path[cmd], "df", "", 40); if ((dig = my_find("dig", dig_path)) >= 0) res = ex(fd, dig_path[dig], "dig", "com. soa +ti=1 +retry=0", 100); if ((cmd = my_find("uptime", uptime_path)) >= 0) res = ex(fd, uptime_path[cmd], "uptime", "", 40); if ((cmd = my_find("printenv", uptime_path)) >= 0) res = ex(fd, uptime_path[cmd], "printenv", "", 400); if (net >= 0) res = ex(fd, net_path[net], "netstat", "-s", 1000); if (dig >= 0) res = ex(fd, net_path[net], "dig", ". soa +ti=1 +retry=0",100); if ((cmd = my_find("iostat", iostat_path)) >= 0) res = ex(fd, iostat_path[cmd], "iostat", "", 100); vm = 0; if ((cmd = my_find("vmstat", vmstat_path))) vm = ex(fd, vmstat_path[cmd], "vmstat", "", 200); if (vm ==0 && ((cmd = my_find("vm_stat", vm_stat_path)) >= 0)) vm = ex(fd, vm_stat_path[cmd], "vm_stat", "", 200); if ((cmd = my_find("w", w_path))) res = ex(fd, w_path[cmd], "w", "", 100); fprintf(fd,"\tNULL\n};\n\n"); fprintf(fd, "static const char *dirs[] = {\n"); for (i=0; dirs[i]; i++) { if (lstat(dirs[i], &st) == 0) if (S_ISDIR(st.st_mode)) fprintf(fd,"\t\"%s\",\n", dirs[i]); } fprintf(fd,"\tNULL\n};\n\n"); fprintf(fd, "static const char *files[] = {\n"); tim = time(NULL); for (i=0; files[i]; i++) { if (lstat(files[i],&st) == 0) if (S_ISREG(st.st_mode) && (tim - st.st_mtime) < 84600) fprintf(fd,"\t\"%s\",\n", files[i]); } fprintf (fd, "\tNULL\n};\n"); if ((stat("/dev/random", &st) == 0)) if (S_ISCHR(st.st_mode)) fprintf(fd, "\n#ifndef HAVE_DEV_RANDOM\n%s%s", "# define HAVE_DEV_RANDOM 1\n", "#endif /* HAVE_DEV_RANDOM */\n\n"); fprintf(fd, "\n#endif /* _PRAND_CMD_H_ */\n"); fclose(fd); exit (0); }