SOURCES: glibc-postshell.patch (NEW) - merged from DEVEL

qboosh qboosh at pld-linux.org
Mon Jul 3 13:46:18 CEST 2006


Author: qboosh                       Date: Mon Jul  3 11:46:18 2006 GMT
Module: SOURCES                       Tag: HEAD
---- Log message:
- merged from DEVEL

---- Files affected:
SOURCES:
   glibc-postshell.patch (1.2 -> 1.3)  (NEW)

---- Diffs:

================================================================
Index: SOURCES/glibc-postshell.patch
diff -u /dev/null SOURCES/glibc-postshell.patch:1.3
--- /dev/null	Mon Jul  3 13:46:18 2006
+++ SOURCES/glibc-postshell.patch	Mon Jul  3 13:46:13 2006
@@ -0,0 +1,232 @@
+diff -urN glibc-2.3.1-/elf/Makefile glibc-2.3.1/elf/Makefile
+--- glibc-2.3.1-/elf/Makefile	Thu Oct 17 15:21:30 2002
++++ glibc-2.3.1/elf/Makefile	Thu Oct 17 15:18:20 2002
+@@ -95,7 +95,7 @@
+ install-bin-script = ldd
+ endif
+ 
+-others		= sprof sln
++others		= postshell sprof sln
+ install-bin	= sprof
+ others-static   = sln
+ install-rootsbin = sln
+diff -urN glibc-2.3.1-/elf/postshell.c glibc-2.3.1/elf/postshell.c
+--- glibc-2.3.1-/elf/postshell.c	Thu Jan  1 01:00:00 1970
++++ glibc-2.3.1/elf/postshell.c	Thu Oct 17 14:54:34 2002
+@@ -0,0 +1,216 @@
++/*
++ * Copyright (c) 2002 Michal Moskal <malekith at pld-linux.org>.
++ * All rights reserved.
++ *
++ * 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.
++ * 3. All advertising materials mentioning features or use of this software
++ *    must display the following acknowledgement:
++ *	This product includes software developed by Michal Moskal.
++ * 4. Neither the name of the author nor the names of any co-contributors
++ *    may be used to endorse or promote products derived from this software
++ *    without specific prior written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY MICHAL MOSKAL AND CONTRIBUTORS ``AS IS'' AND
++ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
++ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
++ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
++ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
++ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
++ * SUCH DAMAGE.
++ */
++
++/*
++ * Usage
++ * ~~~~~
++ *
++ * This simple program is aimed to be used as script interpreter in rpm
++ * %post scriptlets and the like. It opens file passed as first argument
++ * and executes commands found there. Only linear execution is supported.
++ * For example, in glibc.spec:
++ *
++ * %post -p /sbin/postshell
++ * ldconfig
++ * -telinit q
++ *
++ * (full patch like /sbin/ldconfig or -/sbin/tellinit will also work).
++ *
++ * If command starts with - its exit status is ignored. Otherwise last 
++ * non-zero exit status is returned.
++ *
++ * There are no builtin commands (yet :).
++ *
++ * Following commands *will* work as expected (as in Bourne shell):
++ *
++ * /bin/echo "Foo     bar baz"
++ * insmod foobar options="foo bar 'qux'"
++ * false
++ *
++ * Following *won't*:
++ *
++ * exit 1
++ * echo foo || echo baz
++ * set -x
++ * 
++ * Patches and bugreports are welcome, direct them to Michal Moskal
++ * <malekith at pld-linux.org>.
++ */
++
++#define _GNU_SOURCE
++#include <sys/types.h>
++#include <sys/wait.h>
++#include <unistd.h>
++#include <stdio.h>
++#include <stdlib.h>
++#include <string.h>
++
++#define MAX_LINE 1024
++#define MAX_ARGS 32
++#define SEARCH_PATH { "/sbin/", "/bin/", "/usr/sbin/", "/usr/bin/", NULL }
++
++int exit_status;
++int ignore_status;
++
++void do_execve(char **argv)
++{
++	char *path[] = SEARCH_PATH;
++	char file[MAX_LINE + 100];
++	int i; 
++
++	if (**argv == '.' || **argv == '/')
++		execve(argv[0], argv, environ);
++	else 
++		for (i = 0; path[i]; i++) {
++			strcpy(file, path[i]);
++			strcat(file, argv[0]);
++			execve(file, argv, environ);
++		}
++}
++
++int exec_and_wait(char **argv)
++{
++	pid_t pid;
++
++	pid = fork();
++
++	if (pid == -1) {
++		perror("fork");
++		return -1;
++	} else if (pid == 0) {
++		/* child. */
++		do_execve(argv);
++		if (!ignore_status) 
++			perror(argv[0]); 
++		exit(127);
++	} else {
++		int status, err;
++		
++		err = waitpid(pid, &status, 0);
++		if (err < 0) {
++			perror("waitpid");
++			return -1;
++		} else
++			return WEXITSTATUS(status);
++	}
++}
++
++void split_argv(char **argv, char *s)
++{
++	char *dst;
++	int argc, delim;
++	
++	for (argc = 0; argc < MAX_ARGS; argc++) {
++		while (*s == ' ' || *s == '\t')
++			s++;
++
++		if (*s == 0)
++			break;
++
++		argv[argc] = s;
++		dst = s;
++		
++		while (*s && *s != ' ' && *s != '\t') {
++			if (*s == '\'' || *s == '"') {
++				delim = *s++;
++				while (*s && *s != delim)
++					*dst++ = *s++;
++				if (*s)
++					s++;
++			} else {
++				*dst++ = *s++;
++			}
++		}
++
++		if (*dst) {
++			if (s == dst)
++				s++;
++			*dst++ = 0;
++		}
++	}
++
++	argv[argc] = NULL;
++}
++
++void exec_line(char *s)
++{
++	char *argv[MAX_ARGS + 1];
++	int ret;
++
++	split_argv(argv, s);
++	
++	ignore_status = 0;
++
++	if (**argv == '-') {
++		ignore_status++;
++		(*argv)++;
++	}
++
++	ret = exec_and_wait(argv);
++
++	if (ret && !ignore_status)
++		exit_status = ret;
++}
++
++void exec_file(FILE *f)
++{
++	char line[MAX_LINE];
++
++	while (fgets(line, sizeof(line), f)) {
++		/* chomp it */
++		if (line[strlen(line) - 1] == '\n')
++			line[strlen(line) - 1] = 0;
++		/* and exec. */
++		exec_line(line);
++	}
++}
++
++int main(int argc, char **argv)
++{
++	FILE *f;
++
++	if (argc < 2) {
++		fprintf(stderr, "USAGE: %s filename\n", argv[0]);
++		exit(1);
++	}
++
++	f = fopen(argv[1], "r");
++	
++	if (f == NULL) {
++		perror(argv[1]);
++		exit(1);
++	}
++
++	exec_file(f);
++	fclose(f);
++	exit(exit_status);
++}
================================================================


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