0c69794138
These lines are generally out-of-date, incomplete and unnecessary. With SPDX and git repository much more accurate and fine grained information about licensing and authorship is available, hence let's drop the per-file copyright notice. Of course, removing copyright lines of others is problematic, hence this commit only removes my own lines and leaves all others untouched. It might be nicer if sooner or later those could go away too, making git the only and accurate source of authorship information.
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "fd-util.h"
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#include "fileio.h"
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#include "log.h"
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#include "macro.h"
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#include "string-util.h"
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#include "sysctl-util.h"
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char *sysctl_normalize(char *s) {
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char *n;
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n = strpbrk(s, "/.");
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/* If the first separator is a slash, the path is
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* assumed to be normalized and slashes remain slashes
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* and dots remains dots. */
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if (!n || *n == '/')
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return s;
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/* Otherwise, dots become slashes and slashes become
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* dots. Fun. */
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while (n) {
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if (*n == '.')
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*n = '/';
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else
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*n = '.';
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n = strpbrk(n + 1, "/.");
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}
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return s;
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}
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int sysctl_write(const char *property, const char *value) {
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char *p;
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_cleanup_close_ int fd = -1;
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assert(property);
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assert(value);
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log_debug("Setting '%s' to '%s'", property, value);
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p = strjoina("/proc/sys/", property);
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fd = open(p, O_WRONLY|O_CLOEXEC);
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if (fd < 0)
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return -errno;
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if (!endswith(value, "\n"))
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value = strjoina(value, "\n");
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if (write(fd, value, strlen(value)) < 0)
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return -errno;
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return 0;
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}
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int sysctl_read(const char *property, char **content) {
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char *p;
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assert(property);
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assert(content);
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p = strjoina("/proc/sys/", property);
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return read_full_file(p, content, NULL);
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}
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