diff options
Diffstat (limited to 'kernel/tests/lib/self_exec.c')
| -rw-r--r-- | kernel/tests/lib/self_exec.c | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/kernel/tests/lib/self_exec.c b/kernel/tests/lib/self_exec.c deleted file mode 100644 index de7d095..0000000 --- a/kernel/tests/lib/self_exec.c +++ /dev/null @@ -1,225 +0,0 @@ -/* -*- mode: C; c-basic-offset: 4; indent-tabs-mode: t -*- */ -/* - * self_exec.c: self_exec magic required to run child functions on uClinux - * - * Copyright (C) 2005 Paul J.Y. Lahaie <pjlahaie-at-steamballoon.com> - * - * 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 2 - * 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 - * GNU General Public License for more details. - * - * 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. - * - * This software was produced by Steamballoon Incorporated - * 55 Byward Market Square, 2nd Floor North, Ottawa, ON K1N 9C3, Canada - */ - -#define _GNU_SOURCE /* for asprintf */ - -#include "config.h" - -#ifdef UCLINUX - -#include <stdarg.h> -#include <string.h> -#include <stdio.h> -#include "test.h" -#include "safe_macros.h" - -/* Set from parse_opts.c: */ -char *child_args; /* Arguments to child when -C is used */ - -static char *start_cwd; /* Stores the starting directory for self_exec */ - -int asprintf(char **app, const char *fmt, ...) -{ - va_list ptr; - int rv; - char *p; - - /* - * First iteration - find out size of buffer required and allocate it. - */ - va_start(ptr, fmt); - rv = vsnprintf(NULL, 0, fmt, ptr); - va_end(ptr); - - p = malloc(++rv); /* allocate the buffer */ - *app = p; - if (!p) { - return -1; - } - - /* - * Second iteration - actually produce output. - */ - va_start(ptr, fmt); - rv = vsnprintf(p, rv, fmt, ptr); - va_end(ptr); - - return rv; -} - -void maybe_run_child(void (*child) (), const char *fmt, ...) -{ - va_list ap; - char *child_dir; - char *p, *tok; - int *iptr, i, j; - char *s; - char **sptr; - char *endptr; - - /* Store the current directory for later use. */ - start_cwd = getcwd(NULL, 0); - - if (child_args) { - char *args = strdup(child_args); - - child_dir = strtok(args, ","); - if (strlen(child_dir) == 0) { - tst_brkm(TBROK, NULL, - "Could not get directory from -C option"); - return; - } - - va_start(ap, fmt); - - for (p = fmt; *p; p++) { - tok = strtok(NULL, ","); - if (!tok || strlen(tok) == 0) { - tst_brkm(TBROK, NULL, - "Invalid argument to -C option"); - return; - } - - switch (*p) { - case 'd': - iptr = va_arg(ap, int *); - i = strtol(tok, &endptr, 10); - if (*endptr != '\0') { - tst_brkm(TBROK, NULL, - "Invalid argument to -C option"); - return; - } - *iptr = i; - break; - case 'n': - j = va_arg(ap, int); - i = strtol(tok, &endptr, 10); - if (*endptr != '\0') { - tst_brkm(TBROK, NULL, - "Invalid argument to -C option"); - return; - } - if (j != i) { - va_end(ap); - free(args); - return; - } - break; - case 's': - s = va_arg(ap, char *); - if (!strncpy(s, tok, strlen(tok) + 1)) { - tst_brkm(TBROK, NULL, - "Could not strncpy for -C option"); - return; - } - break; - case 'S': - sptr = va_arg(ap, char **); - *sptr = strdup(tok); - if (!*sptr) { - tst_brkm(TBROK, NULL, - "Could not strdup for -C option"); - return; - } - break; - default: - tst_brkm(TBROK, NULL, - "Format string option %c not implemented", - *p); - return; - } - } - - va_end(ap); - free(args); - SAFE_CHDIR(NULL, child_dir); - - (*child) (); - tst_resm(TWARN, "Child function returned unexpectedly"); - /* Exit here? or exit silently? */ - } -} - -int self_exec(const char *argv0, const char *fmt, ...) -{ - va_list ap; - char *p; - char *tmp_cwd; - char *arg; - int ival; - char *str; - - if ((tmp_cwd = getcwd(NULL, 0)) == NULL) { - tst_resm(TBROK, "Could not getcwd()"); - return -1; - } - - arg = strdup(tmp_cwd); - if (arg == NULL) { - tst_resm(TBROK, "Could not produce self_exec string"); - return -1; - } - - va_start(ap, fmt); - - for (p = fmt; *p; p++) { - switch (*p) { - case 'd': - case 'n': - ival = va_arg(ap, int); - if (asprintf(&arg, "%s,%d", arg, ival) < 0) { - tst_resm(TBROK, - "Could not produce self_exec string"); - return -1; - } - break; - case 's': - case 'S': - str = va_arg(ap, char *); - if (asprintf(&arg, "%s,%s", arg, str) < 0) { - tst_resm(TBROK, - "Could not produce self_exec string"); - return -1; - } - break; - default: - tst_resm(TBROK, - "Format string option %c not implemented", *p); - return -1; - break; - } - } - - va_end(ap); - - if (chdir(start_cwd) < 0) { - tst_resm(TBROK, "Could not change to %s for self_exec", - start_cwd); - return -1; - } - - return execlp(argv0, argv0, "-C", arg, (char *)NULL); -} - -#endif /* UCLINUX */ |