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 511a516b 2018-05-19 stsp #include "got_opentemp.h"
24 511a516b 2018-05-19 stsp #include "got_error.h"
27 511a516b 2018-05-19 stsp got_opentempfd(void)
29 511a516b 2018-05-19 stsp char name[PATH_MAX];
32 ea2819be 2023-05-29 op if (strlcpy(name, GOT_TMPDIR_STR "/got.XXXXXXXXXX", sizeof(name))
33 bb63914a 2020-02-17 stsp >= sizeof(name))
36 511a516b 2018-05-19 stsp fd = mkstemp(name);
37 21017333 2022-10-15 stsp if (fd != -1) {
38 21017333 2022-10-15 stsp if (unlink(name) == -1) {
47 511a516b 2018-05-19 stsp got_opentemp(void)
52 511a516b 2018-05-19 stsp fd = got_opentempfd();
54 511a516b 2018-05-19 stsp return NULL;
56 511a516b 2018-05-19 stsp f = fdopen(fd, "w+");
57 511a516b 2018-05-19 stsp if (f == NULL) {
59 511a516b 2018-05-19 stsp return NULL;
65 511a516b 2018-05-19 stsp const struct got_error *
66 b90054ed 2022-11-01 stsp got_opentemp_named(char **path, FILE **outfile, const char *basepath,
67 b90054ed 2022-11-01 stsp const char *suffix)
69 511a516b 2018-05-19 stsp const struct got_error *err = NULL;
72 0c92744a 2018-09-20 stsp *outfile = NULL;
74 ea2819be 2023-05-29 op if (asprintf(path, "%s-XXXXXXXXXX%s", basepath, suffix) == -1) {
75 511a516b 2018-05-19 stsp *path = NULL;
76 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
79 b90054ed 2022-11-01 stsp fd = mkstemps(*path, strlen(suffix));
80 511a516b 2018-05-19 stsp if (fd == -1) {
81 b90054ed 2022-11-01 stsp err = got_error_from_errno2("mkstemps", *path);
82 511a516b 2018-05-19 stsp free(*path);
83 511a516b 2018-05-19 stsp *path = NULL;
87 511a516b 2018-05-19 stsp *outfile = fdopen(fd, "w+");
88 511a516b 2018-05-19 stsp if (*outfile == NULL) {
89 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 b90054ed 2022-11-01 stsp got_opentemp_named_fd(char **path, int *outfd, const char *basepath,
100 b90054ed 2022-11-01 stsp const char *suffix)
102 507dc3bb 2018-12-29 stsp const struct got_error *err = NULL;
105 507dc3bb 2018-12-29 stsp *outfd = -1;
107 ea2819be 2023-05-29 op 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 b90054ed 2022-11-01 stsp 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 a558dd1b 2022-06-08 stsp const struct got_error *
125 a558dd1b 2022-06-08 stsp got_opentemp_truncate(FILE *f)
127 a558dd1b 2022-06-08 stsp if (fpurge(f) == EOF)
128 a558dd1b 2022-06-08 stsp return got_error_from_errno("fpurge");
129 a558dd1b 2022-06-08 stsp if (ftruncate(fileno(f), 0L) == -1)
130 a558dd1b 2022-06-08 stsp return got_error_from_errno("ftruncate");
131 a558dd1b 2022-06-08 stsp if (fseeko(f, 0L, SEEK_SET) == -1)
132 a558dd1b 2022-06-08 stsp return got_error_from_errno("fseeko");
133 a558dd1b 2022-06-08 stsp return NULL;
136 4c9b8811 2024-03-19 stsp const struct got_error *
137 4c9b8811 2024-03-19 stsp got_opentemp_truncatefd(int fd)
139 4c9b8811 2024-03-19 stsp if (ftruncate(fd, 0L) == -1)
140 4c9b8811 2024-03-19 stsp return got_error_from_errno("ftruncate");
141 4c9b8811 2024-03-19 stsp if (lseek(fd, 0L, SEEK_SET) == -1)
142 4c9b8811 2024-03-19 stsp return got_error_from_errno("lseek");
143 4c9b8811 2024-03-19 stsp return NULL;