53bf5c497f
- Add LICENSES directory - Download additional licenses used - Add .reuse directory - Add doc about SPDX/reuse Co-authored-by: Florian Märkl <info@florianmaerkl.de>
31 lines
656 B
C
31 lines
656 B
C
// SPDX-FileCopyrightText: 2009-2016 pancake <pancake@nopcode.org>
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// SPDX-License-Identifier: LGPL-3.0-only
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#include <rz_userconf.h>
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#include <rz_debug.h>
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int procfs_pid_slurp(int pid, char *prop, char *out, size_t len) {
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int fd, ret = -1;
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ssize_t nr;
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char *filename = rz_str_newf("/proc/%d/%s", pid, prop);
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if (!filename) {
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return -1;
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}
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fd = rz_sys_open(filename, O_RDONLY, 0);
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if (fd == -1) {
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free(filename);
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return -1;
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}
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nr = read(fd, out, len);
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out[len - 1] = 0;
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if (nr > 0) {
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out[nr - 1] = '\0'; /* terminate at newline */
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ret = 0;
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} else if (nr < 0) {
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rz_sys_perror("read");
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}
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close(fd);
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free(filename);
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return ret;
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}
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