Attachment 7321 Details for Bug 40059 – Reproducer

Reproducer

40059_glic-NL.c (text/plain), 2.04 KB, created by Philipp Hahn on 2015-11-26 16:21:49 CET

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Creator: Philipp Hahn

Created: 2015-11-26 16:21:49 CET

Size: 2.04 KB

patch

obsolete

>/*
> * <https://forge.univention.org/bugzilla/show_bug.cgi?id=40059>
> */
>#define _GNU_SOURCE
>#include <stdlib.h>
>#include <stdio.h>
>#include <unistd.h>
>#include <pthread.h>
>#include <grp.h>
>#include <string.h>
>#include <limits.h>
>#include <stdarg.h>
>#include <ctype.h>
>#include <unistd.h>
>#include <sys/types.h>
>#include <sys/socket.h>
>#include <netdb.h>
>
>#define ARRAY_SIZE(a) ((sizeof (a)) / sizeof (*(a)))
>#define BUFLEN 4096
>
>// cyrus-sasl
>int check(void) {
>	const char *addr = "0.0.0.0;7636";
>	char hbuf[NI_MAXHOST];
>	struct addrinfo hints, *ai = NULL;
>	int i, j;
>
>	/* Parse the address */
>	for (i = 0; addr[i] != '\0' && addr[i] != ';'; i++) {
>		if (i >= NI_MAXHOST)
>			return 3;
>		hbuf[i] = addr[i];
>	}
>	hbuf[i] = '\0';
>
>	if (addr[i] == ';')
>		i++;
>	/* XXX: Do we need this check? */
>	for (j = i; addr[j] != '\0'; j++)
>		if (!isdigit((int)(addr[j])))
>			return 2;
>
>	memset(&hints, 0, sizeof(hints));
>	hints.ai_family = PF_UNSPEC;
>	hints.ai_socktype = SOCK_STREAM;
>	hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
>	if (getaddrinfo(hbuf, &addr[i], &hints, &ai) != 0)
>		return 1;
>
>	freeaddrinfo(ai);
>
>	return 0;
>}
>
>static pthread_t thread[10];
>
>static void *run(void *data) {
>	unsigned int round, j;
>
>	unsigned int self = (unsigned int)(unsigned long)data;
>	pthread_t tid = pthread_self();
>
>	printf("[%d] POSIX thread ID is %u\n", self, (unsigned int)tid);
>
>	for (round = 0; round < 1000; round++) {
>		for (j = 0; j < 1000; j++) {
>			int i;
>			i = check();
>			if (i)
>				break;
>		}
>		printf("%d\n", round);
>
>		unsigned int usecs = (round * (unsigned int)tid) % 1000000;
>		usleep(usecs);
>		if (round % 10 == 0)
>			putchar('0' + (self % 10));
>	}
>
>	printf("[%d] end\n", self);
>	pthread_exit(NULL);
>}
>
>int main(int argc, char *argv[], char *envp[]) {
>	pid_t pid = getpid();
>	printf("pid=%d\n", pid);
>
>	unsigned int t;
>	for (t = 0; t < ARRAY_SIZE(thread); t++)
>		pthread_create(&thread[t], NULL, run, (void *)(long)t);
>
>	int ret = 0;
>	void *value_ptr;
>	for (t = 0; t < ARRAY_SIZE(thread); t++)
>		ret |= pthread_join(thread[t], &value_ptr);
>
>	return ret;
>}
>/* :!gcc -O0 -g -Wall -lpthread % */

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