lib/ss/error.c - master - githubmirror/e2fsprogs

lib/ss/error.c
77 строк2 KB
Zhiqiang Liu
lib/ss/error.c: check return value malloc in ss_name()
16 июл 2021, 06:45
16 июл 2021, 06:45a6aee13
/*
 * Copyright 1987, 1988, 1989 by MIT Student Information Processing
 * Board
 *
 * Permission to use, copy, modify, and distribute this software and
 * its documentation for any purpose is hereby granted, provided that
 * the names of M.I.T. and the M.I.T. S.I.P.B. not be used in
 * advertising or publicity pertaining to distribution of the software
 * without specific, written prior permission.  M.I.T. and the
 * M.I.T. S.I.P.B. make no representations about the suitability of
 * this software for any purpose.  It is provided "as is" without
 * express or implied warranty.
 */

#include "config.h"
#include <stdio.h>

#include "et/com_err.h"
#include "ss_internal.h"

#include <stdarg.h>

char *ss_name(int sci_idx)
{
    register char *ret_val;
    register ss_data *infop;

    infop = ss_info(sci_idx);
    if (infop->current_request == (char const *)NULL) {
	ret_val = malloc((unsigned)
			 (strlen(infop->subsystem_name)+1)
			 * sizeof(char));
	if (ret_val == (char *)NULL)
	    return((char *)NULL);
	strcpy(ret_val, infop->subsystem_name);
	return(ret_val);
    }
    else {
	register char *cp;
	register char const *cp1;
	ret_val = malloc((unsigned)sizeof(char) *
			 (strlen(infop->subsystem_name)+
			  strlen(infop->current_request)+
			  4));
	if (ret_val == (char *)NULL)
		return ((char *)NULL);
	cp = ret_val;
	cp1 = infop->subsystem_name;
	while (*cp1)
	    *cp++ = *cp1++;
	*cp++ = ' ';
	*cp++ = '(';
	cp1 = infop->current_request;
	while (*cp1)
	    *cp++ = *cp1++;
	*cp++ = ')';
	*cp = '\0';
	return(ret_val);
    }
}

void ss_error (int sci_idx, long code, const char * fmt, ...)
{
    register char *whoami;
    va_list pvar;

    va_start (pvar, fmt);
    whoami = ss_name (sci_idx);
    com_err_va (whoami, code, fmt, pvar);
    free (whoami);
    va_end(pvar);
}

void ss_perror(int sci_idx, long code, char const *msg) /* for compatibility */
{
    ss_error (sci_idx, code, "%s", msg);
}