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/*
* Copyright © 1994 the Free Software Foundation, Inc.
*
* Author: Roland B. Roberts (roberts@nsrl.rochester.edu)
*
* This file is a part of GNU VMSLIB, the GNU library for porting GNU
* software to VMS.
*
* GNU VMSLIB 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 2 of the License, or
* (at your option) any later version.
*
* GNU VMSLIB 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
* GNU General Public License for more details.
*/
/*
* Miscellaneous utilities used by hackargv().
* Some of these are useful in their own right.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <lib$routines.h>
/* Print message and force core dump (unix) or traceback (vms)
* These are taken from other GNU software more-or-less as-is
*/
void fatal (char *s)
{
int *x;
printf ("%s\n", s);
lib$signal(44);
}
/* GNU's lib implementation (alloca.c) is more portable, so I disabled these
for this distribution (benjamin@cyclic.com) */
#ifdef USE_VMSLIB_MEMORY_ALLOCATION
void *xmalloc (int size)
{
register void *val;
/* Avoid failure if malloc (0) returns 0. */
if (size == 0)
size = 1;
val = (void *) malloc (size);
if (!val) fatal ("xmalloc: can't satisfy request");
return val;
}
void *xrealloc (void *block, int size)
{
register void *val;
/* Avoid failure if malloc (0) returns 0. */
if (size == 0)
size = 1;
val = (void *) realloc (block, size);
if (!val) fatal ("xrealloc: can't satisfy request");
return val;
}
#endif
/* See in misc.h why it is done like this. */
void x_free (void *block)
{
free (block);
}
/*
* Some string utilities.
*/
char *downcase (char *s)
{
register char *t;
for (t = s ; *t; t++)
*t = tolower(*t);
return (s);
}
char *strdup (char *src) {
char *dst = (char*) xmalloc (strlen(src) + 1);
strcpy (dst, src);
return (dst);
}
char *strndup (char *src, int len) {
char *dst = (char *) xmalloc (len + 1);
strncpy (dst, src, len);
dst[len] = 0;
return (dst);
}
#include <string.h>
/*
* int fixpath (char *path)
*
* Synopsis:
* `Fix' VMS pathnames, converting them to canonical form.
*
* Description:
* The following conversions are performed
* x:[y.][000000.z] --> x:[y.z]
* x:[y.][z] --> x:[y.z]
* x:[000000.y] --> x:[y]
*
* Author:
* Roland B Roberts (roberts@nsrl.rochester.edu)
* March 1994
*/
int fixpath (char *path)
{
char *s, *d, *t;
int skip = 0;
d = s = path;
if (t = strstr(path ,".][000000"))
skip = 9;
else if (t = strstr(path,"]["))
skip = 2;
else if (t = strstr(path,"[000000."))
t++, skip = 7;
if (t) {
while (s < t)
*d++ = *s++;
s += skip;
while (*d++ = *s++);
}
return 0;
}
#include <ctype.h>
#include <string.h>
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
/*
* char *argvconcat (int argc, char **argv)
*
* Synopsis:
* Concatenate all elements of argv into a single string suitable for
* use as a command line.
*
* Description:
* This is intended for use with hackargv() in order to build a command
* line for background() or popen(). Each element of argv (except the
* first) is surrounded by double quotes to insure the command line is
* unaltered when DCL rereads it.
*
* Side Effect:
* Space for the new string is allocated with xmalloc().
*
* Author:
* Roland B Roberts (roberts@nsrl.rochester.edu)
* March 1994
*/
char *argvconcat (int argc, char **argv)
{
int i, j, n, addquotes, flags, pid, status;
char *cmdline;
/*
* Allocate space
*/
for (j = n = 0; j < argc; j++)
n += 3 + strlen(argv[j]); /* Need 3 extra spaces, not 1; see below */
cmdline = (char *) xmalloc ((n + 1) * sizeof (char));
sprintf (cmdline, "%s ", argv[0]);
for (j = 1, addquotes = FALSE; j < argc; j++) {
/*
* Add double quotes to arg if it contains uppercase of spaces.
* Hence, the need to allocate three extra spaces for each argument.
*/
for (i = 0; i < strlen(argv[j]); i++)
if (isupper(argv[j][i]) || isspace(argv[j][i])) {
addquotes = TRUE;
break;
}
if (addquotes) {
strcat (cmdline, argv[j]);
strcat (cmdline, " ");
}
else {
strcat (cmdline, "\""); /* use quotes to preserve case */
strcat (cmdline, argv[j]);
strcat (cmdline, "\" ");
}
}
cmdline[strlen(cmdline)-1] = 0;
return (cmdline);
}
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