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.
16 4fccd2fe 2023-03-08 thomas #include "got_compat.h"
18 511a516b 2018-05-19 stsp #include <limits.h>
19 511a516b 2018-05-19 stsp #include <stdlib.h>
20 511a516b 2018-05-19 stsp #include <unistd.h>
21 511a516b 2018-05-19 stsp #include <string.h>
22 511a516b 2018-05-19 stsp #include <stdio.h>
24 511a516b 2018-05-19 stsp #include "got_opentemp.h"
25 511a516b 2018-05-19 stsp #include "got_error.h"
28 511a516b 2018-05-19 stsp got_opentempfd(void)
30 511a516b 2018-05-19 stsp char name[PATH_MAX];
33 d6e78555 2023-06-01 thomas if (strlcpy(name, GOT_TMPDIR_STR "/got.XXXXXXXXXX", sizeof(name))
34 bb63914a 2020-02-17 stsp >= sizeof(name))
37 511a516b 2018-05-19 stsp fd = mkstemp(name);
38 bcf5a432 2022-10-16 thomas if (fd != -1) {
39 bcf5a432 2022-10-16 thomas if (unlink(name) == -1) {
40 bcf5a432 2022-10-16 thomas close(fd);
41 bcf5a432 2022-10-16 thomas return -1;
48 511a516b 2018-05-19 stsp got_opentemp(void)
53 511a516b 2018-05-19 stsp fd = got_opentempfd();
55 511a516b 2018-05-19 stsp return NULL;
57 511a516b 2018-05-19 stsp f = fdopen(fd, "w+");
58 511a516b 2018-05-19 stsp if (f == NULL) {
60 511a516b 2018-05-19 stsp return NULL;
66 511a516b 2018-05-19 stsp const struct got_error *
67 fc2a50f2 2022-11-01 thomas got_opentemp_named(char **path, FILE **outfile, const char *basepath,
68 fc2a50f2 2022-11-01 thomas const char *suffix)
70 511a516b 2018-05-19 stsp const struct got_error *err = NULL;
73 0c92744a 2018-09-20 stsp *outfile = NULL;
75 d6e78555 2023-06-01 thomas if (asprintf(path, "%s-XXXXXXXXXX%s", basepath, suffix) == -1) {
76 511a516b 2018-05-19 stsp *path = NULL;
77 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
80 fc2a50f2 2022-11-01 thomas fd = mkstemps(*path, strlen(suffix));
81 511a516b 2018-05-19 stsp if (fd == -1) {
82 fc2a50f2 2022-11-01 thomas err = got_error_from_errno2("mkstemps", *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 fc2a50f2 2022-11-01 thomas got_opentemp_named_fd(char **path, int *outfd, const char *basepath,
100 fc2a50f2 2022-11-01 thomas const char *suffix)
102 507dc3bb 2018-12-29 stsp const struct got_error *err = NULL;
105 507dc3bb 2018-12-29 stsp *outfd = -1;
107 d6e78555 2023-06-01 thomas if (asprintf(path, "%s-XXXXXXXXXX%s", basepath, suffix) == -1) {
108 507dc3bb 2018-12-29 stsp *path = NULL;
109 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
112 fc2a50f2 2022-11-01 thomas fd = mkstemps(*path, strlen(suffix));
113 507dc3bb 2018-12-29 stsp if (fd == -1) {
114 638f9024 2019-05-13 stsp err = got_error_from_errno("mkstemp");
115 507dc3bb 2018-12-29 stsp free(*path);
116 507dc3bb 2018-12-29 stsp *path = NULL;
117 507dc3bb 2018-12-29 stsp return err;
120 507dc3bb 2018-12-29 stsp *outfd = fd;
121 507dc3bb 2018-12-29 stsp return err;
124 1758cce7 2022-06-13 thomas const struct got_error *
125 1758cce7 2022-06-13 thomas got_opentemp_truncate(FILE *f)
127 1758cce7 2022-06-13 thomas if (fpurge(f) == EOF)
128 1758cce7 2022-06-13 thomas return got_error_from_errno("fpurge");
129 1758cce7 2022-06-13 thomas if (ftruncate(fileno(f), 0L) == -1)
130 1758cce7 2022-06-13 thomas return got_error_from_errno("ftruncate");
131 1758cce7 2022-06-13 thomas if (fseeko(f, 0L, SEEK_SET) == -1)
132 1758cce7 2022-06-13 thomas return got_error_from_errno("fseeko");
133 1758cce7 2022-06-13 thomas return NULL;