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Overview
Comment:Rewrote mkstemp() implementation
Timelines: family | ancestors | descendants | both | new-driver
Files: files | file ages | folders
SHA1: 6b27ab3d3566bebbc740450038c536e3fcc9070a
User & Date: rkeene 2013-03-05 03:05:43
Context
2013-03-05
03:08
Removed much of the original source check-in: 67a663abd1 user: rkeene tags: new-driver
03:05
Rewrote mkstemp() implementation check-in: 6b27ab3d35 user: rkeene tags: new-driver
2013-03-04
23:32
Create new branch named "new-driver" check-in: 962bbd984e user: rkeene tags: new-driver
Changes
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Changes to mkstemp.c.

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#include <sys/stat.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>

int mkstemp(char *template) {

	int retfd=-1;
	int i, temp_len;


	temp_len=strlen(template);

	if (temp_len<6) return(-1);
	if (strcmp(template+(temp_len-6), "XXXXXX")!=0) return(-1);


	srand(getpid()+temp_len);

	for (i=0; i<6; i++) {


		template[temp_len-i-1]='A'+((rand()+i)%26);
		retfd=open(template, O_EXCL|O_CREAT|O_RDWR, 0600);
		if (retfd>=0) break;

	}
	

	return(retfd);
}








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#include <sys/stat.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>

int mkstemp(char *template) {
	unsigned int idx, try;
	int retfd = -1;

	char *str;

	str = strstr(template, "XXXXXX");
	if (str == NULL) {
		return(-1);

	}

	srand(getpid());
	for (try = 0; try < 10; try++) {
		for (idx = 0; idx < 6; idx++) {
			str[idx] = 'A' + ((rand() + idx) % 26);
		}

		retfd = open(template, O_EXCL | O_CREAT | O_RDWR, 0600);
		if (retfd >= 0) {
			break;
		}
	}

	return(retfd);
}

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