72 lines
1.7 KiB
Plaintext
72 lines
1.7 KiB
Plaintext
/*
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* Copyright (c) 2018 Alastair Roy Poole <netstar@gmail.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#if defined(__linux__)
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char *
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file_contents(const char *path)
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{
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FILE *f;
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char *buf, *tmp;
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size_t n = 1, len = 0;
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const size_t block = 4096;
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f = fopen(path, "r");
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if (!f) return NULL;
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buf = NULL;
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while ((!feof(f)) && (!ferror(f)))
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{
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tmp = realloc(buf, ++n * (sizeof(char) * block) + 1);
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if (!tmp) return NULL;
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buf = tmp;
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len += fread(buf + len, sizeof(char), block, f);
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}
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if (ferror(f))
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{
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free(buf);
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fclose(f);
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return NULL;
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}
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fclose(f);
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buf[len] = 0;
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return buf;
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}
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#endif
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#if defined(__FreeBSD__) || defined(__DragonFly__)
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static long int
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_sysctlfromname(const char *name, void *mib, int depth, size_t *len)
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{
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long int result;
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if (sysctlnametomib(name, mib, len) < 0)
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return -1;
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*len = sizeof(result);
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if (sysctl(mib, depth, &result, len, NULL, 0) < 0)
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return -1;
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return result;
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}
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#endif
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