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ez_libc.c
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/***************************************************************************
* Copyright (C) 2019 by John D. Robertson *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#define _GNU_SOURCE
#include <errno.h>
#include <stdlib.h>
#include <sys/file.h>
#include <unistd.h>
#include "util.h"
#include "ez_libc.h"
/***************************************************/
ez_proto (int, fputs,
const char *s,
FILE *stream)
{
int rtn= fputs (s, stream);
if (EOF == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fputs(\"%s\") failed", s);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, fputc,
int c,
FILE *stream)
{
int rtn= fputc (c, stream);
if (EOF == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fputc('%c') failed", (unsigned char)c);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, fprintf,
FILE *stream,
const char *fmt,
...)
{
va_list args;
/* Pass on doctored format string and varargs to vfprintf() */
va_start(args, fmt);
int rtn= vfprintf(stream, fmt, args);
va_end(args);
if (0 > rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "vfprintf() failed returning %d", rtn);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (FILE*, popen,
const char *command,
const char *type)
{
errno= 0;
FILE *rtn= popen (command, type);
if (!rtn || errno) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "popen(\"%s\", \"%s\") failed", command, type);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (FILE*, fdopen,
int fd,
const char *mode)
{
FILE *rtn= fdopen (fd, mode);
if (!rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fdopen(%d, \"%s\") failed", fd, mode);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (FILE*, fopen,
const char *pathname,
const char *mode)
{
FILE *rtn= fopen (pathname, mode);
if (!rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fopen(\"%s\", \"%s\") failed", pathname, mode);
abort();
}
return rtn;
}
#ifndef __MINGW32__
/***************************************************/
ez_proto (pid_t, fork)
{
int rtn= fork ();
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fork() failed");
abort();
}
return rtn;
}
#endif // __MINGW32__
/***************************************************/
ez_proto (int, fclose,
FILE *stream)
{
int rtn= fclose (stream);
if (EOF == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fclose() failed");
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, fflush,
FILE *stream)
{
int rtn= fflush (stream);
if (EOF == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fflush() failed");
abort();
}
return rtn;
}
/***************************************************/
ez_proto (size_t, fread,
void *ptr,
size_t size,
size_t nmemb,
FILE *stream)
{
size_t rtn= fread (ptr, size, nmemb, stream);
if (ferror(stream)) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fread() failed");
abort();
}
return rtn;
}
/***************************************************/
ez_proto (size_t, fwrite,
const void *ptr,
size_t size,
size_t nmemb,
FILE *stream)
{
size_t rtn= fwrite (ptr, size, nmemb, stream);
if (ferror(stream)) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fwrite() failed");
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, pclose,
FILE *stream)
{
int rtn= pclose (stream);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "pclose() failed");
abort();
}
return rtn;
}
#ifndef __MINGW32__
/***************************************************/
ez_proto (int, pipe, int pipefd[2])
{
int rtn= pipe (pipefd);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "pipe() failed");
abort();
}
return rtn;
}
#endif // __MINGW32__
/***************************************************/
ez_proto (char*, fgets,
char *s,
int size,
FILE *stream)
{
char *rtn= fgets (s, size, stream);
if (!rtn && !feof(stream)) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fgets() failed");
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, remove,
const char *pathname)
{
int rtn= remove (pathname);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "remove(\"%s\") failed", pathname);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, rename,
const char *oldpath,
const char *newpath)
{
int rtn= rename (oldpath, newpath);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "rename(\"%s\", \"%s\") failed", oldpath, newpath);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (DIR*, opendir,
const char *name)
{
DIR *rtn= opendir (name);
if (!rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "opendir(\"%s\") failed", name);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, closedir,
DIR *dirp)
{
int rtn= closedir (dirp);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "closedir() failed");
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, dup2, int oldfd, int newfd)
{
#ifdef _WIN32
int rtn= _dup2 (oldfd, newfd);
#else
int rtn= dup2 (oldfd, newfd);
#endif
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "dup2() failed");
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, execve,
const char *filename,
char *const argv[],
char *const envp[])
{
int rtn= execve(filename, argv, envp);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "execve() failed");
abort();
}
return rtn;
}
/***************************************************/
ez_proto (struct dirent*, readdir, DIR *dirp)
{
/* Pass on doctored format string and varargs to vfprintf() */
errno= 0;
struct dirent* rtn= readdir(dirp);
if (!rtn && errno) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "readdir() failed");
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, close, int fd)
{
int rtn= close (fd);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "close(%d) failed", fd);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (ssize_t, write,
int fd,
const void *buf,
size_t count)
{
ssize_t rtn= write (fd, buf, count);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "write(fd= %d) failed", fd);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (ssize_t, send,
int fd,
const void *buf,
size_t count,
int flags)
{
ssize_t rtn= send (fd, buf, count, flags);
#ifdef __MINGW32__
/* Win32 */
if(SOCKET_ERROR == rtn) {
rtn= -1;
int wsaerr= WSAGetLastError();
switch(wsaerr) {
case WSAEWOULDBLOCK:
errno= EAGAIN;
break;
case WSAECONNRESET:
errno= ECONNRESET;
break;
case WSAEINTR:
errno= EINTR;
break;
case WSAENETRESET:
case WSAECONNABORTED:
case WSAETIMEDOUT:
break;
default:
_eprintf(
#ifdef DEBUG
fileName, lineNo, funcName,
#endif
"send(fd= %d) failed with WSA error= %d", fd, wsaerr);
abort();
}
}
#else
/* POSIX */
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "send(fd= %d) failed", fd);
abort();
}
#endif
return rtn;
}
/***************************************************/
ez_proto (ssize_t, recv,
int fd,
void *buf,
size_t count,
int flags)
{
ssize_t rtn= recv (fd, buf, count, flags);
#ifdef __MINGW32__
/* Win32 */
if(SOCKET_ERROR == rtn) {
rtn= -1;
int wsaerr= WSAGetLastError();
eprintf("recv() WSAError= %d", wsaerr);
switch(wsaerr) {
case WSAEWOULDBLOCK:
errno= EAGAIN;
break;
case WSAECONNRESET:
errno= ECONNREFUSED;
break;
case WSAEINTR:
errno= EINTR;
break;
case WSAENETRESET:
case WSAECONNABORTED:
case WSAETIMEDOUT:
break;
default:
_eprintf(
#ifdef DEBUG
fileName, lineNo, funcName,
#endif
"recv(fd= %d) failed with WSA error= %d", fd, wsaerr);
abort();
}
}
#else
if (-1 == rtn) {
/* POSIX */
switch(errno) {
case EAGAIN:
case ECONNREFUSED:
break;
default:
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "recv(fd= %d) failed", fd);
abort();
}
}
#endif
return rtn;
}
/***************************************************/
ez_proto (int, stat,
const char *pathname,
struct stat *statbuf)
{
int rtn= stat (pathname, statbuf);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "stat(\"%s\") failed", pathname);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, mkdir,
const char *pathname,
mode_t mode)
{
#ifdef __MINGW32__
/* Win32 */
int rtn= mkdir (pathname);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "mkdir(\"%s\") failed", pathname);
abort();
}
#else // __MINGW32__
/* POSIX */
int rtn= mkdir (pathname, mode);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "mkdir(\"%s\", %04x) failed", pathname, (unsigned)mode);
abort();
}
#endif // __MINGW32__
return rtn;
}
/***************************************************/
ez_proto (int, rmdir,
const char *pathname)
{
int rtn= rmdir (pathname);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "rmdir(\"%s\") failed", pathname);
abort();
}
return rtn;
}
/***************************************************/
ez_proto (int, unlink,
const char *pathname)
{
int rtn= unlink (pathname);
if (-1 == rtn) {
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "unlink(\"%s\") failed", pathname);
abort();
}
return rtn;
}
#ifndef __MINGW32__
/***************************************************/
ez_proto (int, getaddrinfo,
const char *node,
const char *service,
const struct addrinfo *hints,
struct addrinfo **res)
{
errno= 0;
int rtn= getaddrinfo (node, service, hints, res);
switch(rtn) {
case 0:
case EAI_AGAIN:
case EAI_FAIL:
case EAI_NODATA:
case EAI_NONAME:
return rtn;
case EAI_SYSTEM:
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "getaddrinfo(\"%s:%s\") failed", node, service);
abort();
}
/* _sys_eprintf() will pass errno to gai_sterror */
errno= rtn;
_sys_eprintf(gai_strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "getaddrinfo(\"%s:%s\") failed", node, service);
abort();
}
/***************************************************/
ez_proto (int, getnameinfo,
const struct sockaddr *addr,
socklen_t addrlen,
char *host,
socklen_t hostlen,
char *serv,
socklen_t servlen,
int flags)
{
errno= 0;
int rtn= getnameinfo (addr, addrlen, host, hostlen, serv, servlen, flags);
switch(rtn) {
case 0:
case EAI_AGAIN:
case EAI_FAIL:
case EAI_NONAME:
return rtn;
case EAI_SYSTEM:
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "getnameinfo() failed");
abort();
}
/* _sys_eprintf() will pass errno to gai_sterror */
errno= rtn;
_sys_eprintf(gai_strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "getnameinfo() failed");
abort();
}
/***************************************************/
ez_proto (int, flock,
int fd,
int operation)
{
errno= 0;
int rtn= flock (fd, operation);
if(0 == rtn) return 0;
switch(errno) {
case EINTR:
case EWOULDBLOCK:
return rtn;
break;
}
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "flock() failed");
abort();
}
#endif // __MINGW32__
/***************************************************/
ez_proto (int, open,
const char *pathname,
int flags,
mode_t mode)
{
errno= 0;
int rtn= open (pathname, flags, mode);
if(0 <= rtn) return rtn;
switch(errno) {
case EINTR:
case EWOULDBLOCK:
return rtn;
break;
}
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "open(\"%s\") failed", pathname);
abort();
}
/***************************************************/
ez_proto (int, access,
const char *pathname,
int mode)
{
errno= 0;
int rtn= access (pathname, mode);
if(0 == rtn) return rtn;
switch(errno) {
case ENOENT:
return rtn;
break;
}
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "access(\"%s\") failed", pathname);
abort();
}
#ifndef __MINGW32__
/***************************************************/
ez_proto (char*, strptime,
const char *s,
const char *format,
struct tm *tm)
{
char *rtn= strptime (s, format, tm);
if(rtn) return rtn;
_eprintf(
#ifdef DEBUG
fileName, lineNo, funcName,
#endif
"strptime(\"%s\", \"%s\") failed", s, format);
abort();
}
/***************************************************/
ez_proto (int, seteuid, uid_t euid)
{
int rtn= seteuid (euid);
if(0 == rtn) return 0;
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "seteuid(%d) failed", (int)euid);
abort();
}
/***************************************************/
ez_proto (int, setegid, gid_t egid)
{
int rtn= setegid (egid);
if(0 == rtn) return 0;
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "setegid(%d) failed", (int)egid);
abort();
}
/***************************************************/
ez_proto (struct group*, getgrnam, const char *name)
{
errno= 0;
struct group *rtn= getgrnam (name);
if(rtn) return rtn;
switch(errno) {
case EINTR:
case EIO:
case EMFILE:
case ENFILE:
case ENOMEM:
case ERANGE:
return NULL;
}
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "getgrnam(\"%s\") failed", name);
abort();
}
/***************************************************/
ez_proto (int, chown,
const char *pathname,
uid_t owner,
gid_t group)
{
int rtn= chown (pathname, owner, group);
if(0 == rtn) return rtn;
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "chown(\"%s\", %d, %d) failed", pathname, (int)owner, (int)group);
abort();
}
/***************************************************/
ez_proto (int, fchown,
int fd,
uid_t owner,
gid_t group)
{
int rtn= fchown (fd, owner, group);
if(0 == rtn) return rtn;
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fchown() failed");
abort();
}
/***************************************************/
ez_proto (int, fchmod, int fd, mode_t mode)
{
int rtn= fchmod (fd, mode);
if(0 == rtn) return rtn;
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "fchmod() failed");
abort();
}
/***************************************************/
ez_proto (int, setuid, uid_t uid)
{
int rtn= setuid (uid);
if(0 == rtn) return 0;
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "setuid(%d) failed", (int)uid);
abort();
}
/***************************************************/
ez_proto (int, setgid, gid_t gid)
{
int rtn= setgid (gid);
if(0 == rtn) return 0;
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "setgid(%d) failed", (int)gid);
abort();
}
#endif // __MINGW32__
/***************************************************/
ez_proto (int, atexit,
void(*function)(void))
{
int rtn= atexit (function);
if(0 == rtn) return 0;
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "atexit() failed");
abort();
}
/***************************************************/
ez_proto (int, chdir,
const char *path)
{
int rtn= chdir (path);
if(0 == rtn) return 0;
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "chdir(\"%s\") failed", path);
abort();
}
/***************************************************/
ez_proto (int, mkstemp,
char *template)
{
int rtn= mkstemp (template);
if(-1 != rtn) return rtn;
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "mkstemp(\"%s\") failed", template);
abort();
}
/***************************************************/
ez_proto (int, mkstemps,
char *template,
int suffixlen)
{
int rtn= mkstemps (template, suffixlen);
if(-1 != rtn) return rtn;
_sys_eprintf((const char*(*)(int))strerror
#ifdef DEBUG
, fileName, lineNo, funcName
#endif
, "mkstemps(\"%s\") failed", template);
abort();
}
/***************************************************/
ez_proto (int, vfprintf,
FILE *stream,
const char *fmt,
va_list ap)
{