198 lines
3.5 KiB
C
198 lines
3.5 KiB
C
/*
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* @(#) $Header: /tmp/cvs/mysql-admutils/common.c,v 1.2 2002-02-27 08:49:48 knutpett Exp $
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*
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* functions used by mysql-dbadm.c and mysql-useradm.c
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*
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <mysql.h>
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#include <assert.h>
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#include <pwd.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <string.h>
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#include <grp.h>
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#include "mysql-admutils.h"
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char *program_name;
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static char *rcsheader = "@(#) " PACKAGE " " VERSION " ljosa@initio.no $Header: /tmp/cvs/mysql-admutils/common.c,v 1.2 2002-02-27 08:49:48 knutpett Exp $";
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int
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version()
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{
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printf("%s %s\n", program_name, rcsheader);
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exit(0);
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}
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int
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wrong_use(char *format, ...)
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{
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va_list ap;
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if (format)
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{
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fprintf(stderr, "%s: ", program_name);
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va_start(ap, format);
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vfprintf(stderr, format, ap);
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va_end(ap);
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putchar('\n');
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}
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fprintf(stderr, "Try `%s --help' for more information.\n", program_name);
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return 1;
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}
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/* always returns 1. */
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int
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dberror(MYSQL *pmysql, char *format, ...)
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{
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char *errmsg;
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va_list ap;
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fprintf(stderr, "%s: ", program_name);
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va_start(ap, format);
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vfprintf(stderr, format, ap);
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va_end(ap);
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fprintf(stderr, "\n");
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if (pmysql)
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{
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errmsg = mysql_error(pmysql);
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if ((errmsg) && (strcmp(errmsg, "") != 0))
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fprintf(stderr, "mysql: %s\n", errmsg);
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mysql_close(pmysql);
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}
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return 1;
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}
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/* always returns 1. */
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int
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fatal_error(char *format, ...)
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{
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va_list ap;
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fprintf(stderr, "%s: ", program_name);
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va_start(ap, format);
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vfprintf(stderr, format, ap);
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va_end(ap);
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fprintf(stderr, "\n");
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return 1;
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}
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/* decides if the UNIX user is entitled to the MySQL database or MySQL user. */
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int
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owner(char *name)
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{
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struct passwd *p;
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p = getpwuid(getuid());
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if (!p)
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{
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dberror(NULL, "Failed to look up your UNIX username.");
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exit(1);
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}
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if (strcmp(name, p->pw_name) == 0)
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return 1; /* OK */
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if ((strncmp(name, p->pw_name, strlen(p->pw_name)) == 0) &&
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(*(name + strlen(p->pw_name)) == '_'))
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return 1; /* OK */
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return 0; /* not owner if we get as far as this */
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}
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/**
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* Decides if the user is member of a group. The Unix group can't contain any
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* '_'. i.e 'fidi_s' won't be accepted.
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*/
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int
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member(char *gr) {
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char *username;
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char *group;
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struct group *g;
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struct passwd *p;
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char *foo;
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/* size_t i = 0; */
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/* Get username */
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p = getpwuid(getuid());
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if (!p) {
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fprintf(stderr, "Failed to look up your UNIX username.");
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exit(1);
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}
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username = p->pw_name;
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/* Copy string, but cut at '_' */
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group = strdup(gr);
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if (group == NULL) {
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fprintf(stderr, "Couldn't allocate memory. Terminating.");
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exit(1);
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}
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foo = strchr(group, '_');
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if (foo) {
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#if DEBUG
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printf("gr = %s, group = %s, foo = %s\n", gr, group, foo);
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#endif
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*foo = '\0';
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}
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/* Get group */
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g = getgrnam(group);
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if (g == NULL) {
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fprintf(stderr, "No such group: %s\n", group);
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exit(1);
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}
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/* Check if user is member of group */
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while(*g->gr_mem != NULL) {
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char * member = *g->gr_mem;
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#if DEBUG
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printf("Medlem: %s\n", *g->gr_mem);
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#endif
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if (strcmp(member,username) == 0) {
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#if DEBUG
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printf("You have access to '%s'\n", gr);
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#endif
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return 1; /* OK */
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} else
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*g->gr_mem++;
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}
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#if DEBUG
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printf("You have no access to '%s'\n", gr);
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#endif
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return 0;
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}
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int
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reload(MYSQL *pmysql)
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{
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return mysql_reload(pmysql);
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}
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