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82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/* PID and PID file helpers
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*
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* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
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* Copyright (c) 2008-2025 Joachim Wiberg <troglobit@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef FINIT_PID_H_
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#define FINIT_PID_H_
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#include "svc.h"
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#include "util.h"
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int pid_alive (pid_t pid);
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char *pid_get_name (pid_t pid, char *name, size_t len);
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char *pid_file (svc_t *svc);
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int pid_file_set (svc_t *svc, char *file, int not);
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pid_t pid_file_read (const char *fn);
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int pid_file_create (svc_t *svc);
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int pid_file_parse (svc_t *svc, char *arg);
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/**
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* pid_runpath - Adjust /var/run --> /run path depending on system
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* @file: Path to file in /run/path or /var/run/path
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* @path: Pointer to buffer to write correct path
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* @len: Length, in bytes, of @path buffer
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*
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* Returns:
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* Always returns a valid pointer, which can be either @path with a /run
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* or /var/run prefix to @file, or it may be @file if the prefix is OK.
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*/
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static inline char *pid_runpath(const char *file, char *path, size_t len)
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{
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static char *prefix = "/var/run";
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static int unknown = 1;
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char *ptr;
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int rc;
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if (unknown) {
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if (fisdir("/run"))
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prefix = "/run";
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unknown = 0;
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}
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ptr = strstr(file, "/run/");
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if (ptr)
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file = ptr + 5;
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rc = paste(path, len, prefix, file);
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if (rc < 0 || (size_t)rc >= len)
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err(1, "File path '%s' truncated, should end with '%s'", path, file);
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return path;
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}
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#endif /* FINIT_PID_H_ */
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/**
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* Local Variables:
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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