2 511a516b 2018-05-19 stsp * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
4 511a516b 2018-05-19 stsp * Permission to use, copy, modify, and distribute this software for any
5 511a516b 2018-05-19 stsp * purpose with or without fee is hereby granted, provided that the above
6 511a516b 2018-05-19 stsp * copyright notice and this permission notice appear in all copies.
8 511a516b 2018-05-19 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 511a516b 2018-05-19 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 511a516b 2018-05-19 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 511a516b 2018-05-19 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 511a516b 2018-05-19 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 511a516b 2018-05-19 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 511a516b 2018-05-19 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 511a516b 2018-05-19 stsp #include <limits.h>
18 511a516b 2018-05-19 stsp #include <stdlib.h>
19 511a516b 2018-05-19 stsp #include <unistd.h>
20 511a516b 2018-05-19 stsp #include <string.h>
21 511a516b 2018-05-19 stsp #include <stdio.h>
23 dd038bc6 2021-09-21 thomas.ad #include "got_compat.h"
25 511a516b 2018-05-19 stsp #include "got_opentemp.h"
26 511a516b 2018-05-19 stsp #include "got_error.h"
29 511a516b 2018-05-19 stsp got_opentempfd(void)
31 511a516b 2018-05-19 stsp char name[PATH_MAX];
34 bb63914a 2020-02-17 stsp if (strlcpy(name, GOT_TMPDIR_STR "/got.XXXXXXXX", sizeof(name))
35 bb63914a 2020-02-17 stsp >= sizeof(name))
38 511a516b 2018-05-19 stsp fd = mkstemp(name);
39 bcf5a432 2022-10-16 thomas if (fd != -1) {
40 bcf5a432 2022-10-16 thomas if (unlink(name) == -1) {
41 bcf5a432 2022-10-16 thomas close(fd);
42 bcf5a432 2022-10-16 thomas return -1;
49 511a516b 2018-05-19 stsp got_opentemp(void)
54 511a516b 2018-05-19 stsp fd = got_opentempfd();
56 511a516b 2018-05-19 stsp return NULL;
58 511a516b 2018-05-19 stsp f = fdopen(fd, "w+");
59 511a516b 2018-05-19 stsp if (f == NULL) {
61 511a516b 2018-05-19 stsp return NULL;
67 511a516b 2018-05-19 stsp const struct got_error *
68 511a516b 2018-05-19 stsp got_opentemp_named(char **path, FILE **outfile, const char *basepath)
70 511a516b 2018-05-19 stsp const struct got_error *err = NULL;
73 0c92744a 2018-09-20 stsp *outfile = NULL;
75 511a516b 2018-05-19 stsp if (asprintf(path, "%s-XXXXXX", basepath) == -1) {
76 511a516b 2018-05-19 stsp *path = NULL;
77 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
80 511a516b 2018-05-19 stsp fd = mkstemp(*path);
81 511a516b 2018-05-19 stsp if (fd == -1) {
82 0d0c539e 2019-05-22 jcs err = got_error_from_errno2("mkstemp", *path);
83 511a516b 2018-05-19 stsp free(*path);
84 511a516b 2018-05-19 stsp *path = NULL;
88 511a516b 2018-05-19 stsp *outfile = fdopen(fd, "w+");
89 511a516b 2018-05-19 stsp if (*outfile == NULL) {
90 0d0c539e 2019-05-22 jcs err = got_error_from_errno2("fdopen", *path);
91 511a516b 2018-05-19 stsp free(*path);
92 511a516b 2018-05-19 stsp *path = NULL;
98 507dc3bb 2018-12-29 stsp const struct got_error *
99 507dc3bb 2018-12-29 stsp got_opentemp_named_fd(char **path, int *outfd, const char *basepath)
101 507dc3bb 2018-12-29 stsp const struct got_error *err = NULL;
104 507dc3bb 2018-12-29 stsp *outfd = -1;
106 507dc3bb 2018-12-29 stsp if (asprintf(path, "%s-XXXXXX", basepath) == -1) {
107 507dc3bb 2018-12-29 stsp *path = NULL;
108 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
111 507dc3bb 2018-12-29 stsp fd = mkstemp(*path);
112 507dc3bb 2018-12-29 stsp if (fd == -1) {
113 638f9024 2019-05-13 stsp err = got_error_from_errno("mkstemp");
114 507dc3bb 2018-12-29 stsp free(*path);
115 507dc3bb 2018-12-29 stsp *path = NULL;
116 507dc3bb 2018-12-29 stsp return err;
119 507dc3bb 2018-12-29 stsp *outfd = fd;
120 507dc3bb 2018-12-29 stsp return err;
123 1758cce7 2022-06-13 thomas const struct got_error *
124 1758cce7 2022-06-13 thomas got_opentemp_truncate(FILE *f)
126 1758cce7 2022-06-13 thomas if (fpurge(f) == EOF)
127 1758cce7 2022-06-13 thomas return got_error_from_errno("fpurge");
128 1758cce7 2022-06-13 thomas if (ftruncate(fileno(f), 0L) == -1)
129 1758cce7 2022-06-13 thomas return got_error_from_errno("ftruncate");
130 1758cce7 2022-06-13 thomas if (fseeko(f, 0L, SEEK_SET) == -1)
131 1758cce7 2022-06-13 thomas return got_error_from_errno("fseeko");
132 1758cce7 2022-06-13 thomas return NULL;