diff options
Diffstat (limited to 'pkgtools/pkg_install/files/lib/exec.c')
| -rw-r--r-- | pkgtools/pkg_install/files/lib/exec.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/pkgtools/pkg_install/files/lib/exec.c b/pkgtools/pkg_install/files/lib/exec.c new file mode 100644 index 00000000000..a7a3af172f8 --- /dev/null +++ b/pkgtools/pkg_install/files/lib/exec.c @@ -0,0 +1,75 @@ +/* $NetBSD: exec.c,v 1.1.1.1 2002/12/20 18:13:59 schmonz Exp $ */ + +#if 0 +#include <sys/cdefs.h> +#ifndef lint +#if 0 +static const char *rcsid = "from FreeBSD Id: exec.c,v 1.6 1997/10/08 07:47:50 charnier Exp"; +#else +__RCSID("$NetBSD: exec.c,v 1.1.1.1 2002/12/20 18:13:59 schmonz Exp $"); +#endif +#endif +#endif + +/* + * FreeBSD install - a package for the installation and maintainance + * 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. + * + * Jordan K. Hubbard + * 18 July 1993 + * + * Miscellaneous system routines. + * + */ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#ifdef HAVE_ERR_H +#include <err.h> +#endif + +#include "lib.h" + +/* + * Unusual system() substitute. Accepts format string and args, + * builds and executes command. Returns exit code. + */ +int +vsystem(const char *fmt,...) +{ + va_list args; + char *cmd; + size_t maxargs; + int ret; + + maxargs = (size_t) sysconf(_SC_ARG_MAX); + maxargs -= 32; /* some slop for the sh -c */ + if ((cmd = (char *) malloc(maxargs)) == (char *) NULL) { + warnx("vsystem can't alloc arg space"); + return 1; + } + + va_start(args, fmt); + if (vsnprintf(cmd, maxargs, fmt, args) >= maxargs) { + warnx("vsystem args are too long"); + va_end(args); + return 1; + } +#ifdef VSYSTEM_DEBUG + printf("vsystem(\"%s\")\n", cmd); +#endif + ret = system(cmd); + va_end(args); + free(cmd); + return ret; +} |