diff options
Diffstat (limited to 'usr.sbin/pkg_install/lib/pkgwrap.c')
-rw-r--r-- | usr.sbin/pkg_install/lib/pkgwrap.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/usr.sbin/pkg_install/lib/pkgwrap.c b/usr.sbin/pkg_install/lib/pkgwrap.c new file mode 100644 index 0000000..cbd15cd --- /dev/null +++ b/usr.sbin/pkg_install/lib/pkgwrap.c @@ -0,0 +1,89 @@ +/* + * 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)); +} |