HCoop / hcoop / debian / openafs.git / blame
| Commit | Line | Data |
|---|---|---|
| 805e021f CE |
1 | /* |
| 2 | * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan | |
| 3 | * (Royal Institute of Technology, Stockholm, Sweden). | |
| 4 | * All rights reserved. | |
| 5 | * | |
| 6 | * Redistribution and use in source and binary forms, with or without | |
| 7 | * modification, are permitted provided that the following conditions | |
| 8 | * are met: | |
| 9 | * | |
| 10 | * 1. Redistributions of source code must retain the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer. | |
| 12 | * | |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 | * notice, this list of conditions and the following disclaimer in the | |
| 15 | * documentation and/or other materials provided with the distribution. | |
| 16 | * | |
| 17 | * 3. Neither the name of the Institute nor the names of its contributors | |
| 18 | * may be used to endorse or promote products derived from this software | |
| 19 | * without specific prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND | |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE | |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 31 | * SUCH DAMAGE. | |
| 32 | */ | |
| 33 | ||
| 34 | #include <config.h> | |
| 35 | ||
| 36 | #include <string.h> | |
| 37 | #ifdef HAVE_UNISTD_H | |
| 38 | #include <unistd.h> | |
| 39 | #endif | |
| 40 | #ifdef HAVE_FCNTL_H | |
| 41 | #include <fcntl.h> | |
| 42 | #endif | |
| 43 | #include <errno.h> | |
| 44 | ||
| 45 | #include <roken.h> | |
| 46 | ||
| 47 | #ifndef HAVE_MKSTEMP | |
| 48 | ||
| 49 | ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL | |
| 50 | mkstemp(char *template) | |
| 51 | { | |
| 52 | int start, i; | |
| 53 | pid_t val; | |
| 54 | val = getpid(); | |
| 55 | start = strlen(template) - 1; | |
| 56 | while(template[start] == 'X') { | |
| 57 | template[start] = '0' + val % 10; | |
| 58 | val /= 10; | |
| 59 | start--; | |
| 60 | } | |
| 61 | ||
| 62 | do{ | |
| 63 | int fd; | |
| 64 | fd = open(template, O_RDWR | O_CREAT | O_EXCL, 0600); | |
| 65 | if(fd >= 0 || errno != EEXIST) | |
| 66 | return fd; | |
| 67 | i = start + 1; | |
| 68 | do{ | |
| 69 | if(template[i] == 0) | |
| 70 | return -1; | |
| 71 | template[i]++; | |
| 72 | if(template[i] == '9' + 1) | |
| 73 | template[i] = 'a'; | |
| 74 | if(template[i] <= 'z') | |
| 75 | break; | |
| 76 | template[i] = 'a'; | |
| 77 | i++; | |
| 78 | }while(1); | |
| 79 | }while(1); | |
| 80 | } | |
| 81 | ||
| 82 | #endif |