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/*
* FreeBSD install - a package for the installation and maintenance
* of non-core utilities.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Maxim Sobolev
* 8 September 2002
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "lib.h"
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#undef main
#define SEPARATORS " \t"
extern char **environ;
int
main(int argc, char **argv)
{
FILE *f;
char buffer[FILENAME_MAX], *cp, *verstr;
int len;
if (getenv("PKG_NOWRAP") != NULL)
goto nowrap;
f = fopen(PKG_WRAPCONF_FNAME, "r");
if (f == NULL)
goto nowrap;
cp = fgets(buffer, 256, f);
fclose(f);
if (cp == NULL)
goto nowrap;
len = strlen(cp);
if (cp[len - 1] == '\n')
cp[len - 1] = '\0';
while (strchr(SEPARATORS, *cp) != NULL)
cp++;
verstr = cp;
cp = strpbrk(cp, SEPARATORS);
if (cp == NULL)
goto nowrap;
*cp = '\0';
for (cp = verstr; *cp != '\0'; cp++)
if (isdigit(*cp) == 0)
goto nowrap;
if (atoi(verstr) < PKG_INSTALL_VERSION)
goto nowrap;
cp++;
while (*cp != '\0' && strchr(SEPARATORS, *cp) != NULL)
cp++;
if (*cp == '\0')
goto nowrap;
bcopy(cp, buffer, strlen(cp) + 1);
cp = strpbrk(buffer, SEPARATORS);
if (cp != NULL)
*cp = '\0';
if (!isdir(buffer))
goto nowrap;
cp = strrchr(argv[0], '/');
if (cp == NULL)
cp = argv[0];
else
cp++;
strlcat(buffer, "/", sizeof(buffer));
strlcat(buffer, cp, sizeof(buffer));
setenv("PKG_NOWRAP", "1", 1);
execve(buffer, argv, environ);
nowrap:
unsetenv("PKG_NOWRAP");
return(real_main(argc, argv));
}
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