/* SPDX-License-Identifier: BSD * * Copyright © 2017-2019 WireGuard LLC. All Rights Reserved. * */ #define FILE_IS_EMPTY #if defined(__ANDROID_API__) && __ANDROID_API__ < 18 #undef FILE_IS_EMPTY #include <stdio.h> #include <stdlib.h> ssize_t getdelim(char **buf, size_t *bufsiz, int delimiter, FILE *fp) { char *ptr, *eptr; if (*buf == NULL || *bufsiz == 0) { *bufsiz = BUFSIZ; if ((*buf = malloc(*bufsiz)) == NULL) return -1; } for (ptr = *buf, eptr = *buf + *bufsiz;;) { int c = fgetc(fp); if (c == -1) { if (feof(fp)) { ssize_t diff = (ssize_t)(ptr - *buf); if (diff != 0) { *ptr = '\0'; return diff; } } return -1; } *ptr++ = c; if (c == delimiter) { *ptr = '\0'; return ptr - *buf; } if (ptr + 2 >= eptr) { char *nbuf; size_t nbufsiz = *bufsiz * 2; ssize_t d = ptr - *buf; if ((nbuf = realloc(*buf, nbufsiz)) == NULL) return -1; *buf = nbuf; *bufsiz = nbufsiz; eptr = nbuf + nbufsiz; ptr = nbuf + d; } } } ssize_t getline(char **buf, size_t *bufsiz, FILE *fp) { return getdelim(buf, bufsiz, '\n', fp); } #endif #if defined(__ANDROID_API__) && __ANDROID_API__ < 24 #undef FILE_IS_EMPTY #include <string.h> char *strchrnul(const char *s, int c) { char *x = strchr(s, c); if (!x) return (char *)s + strlen(s); return x; } #endif #ifdef FILE_IS_EMPTY #undef FILE_IS_EMPTY static char ____x __attribute__((unused)); #endif