69 lines
1.4 KiB
C
Executable File
69 lines
1.4 KiB
C
Executable File
#pragma once
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#include_next <stdio.h>
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#include <stdlib.h>
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static inline int vasprintf(char **str, const char *fmt, va_list args)
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{
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size_t size = _vscprintf(fmt, args) + 1;
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*str = malloc(size);
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int ret = vsprintf(*str, fmt, args);
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if (ret != size - 1) {
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free(*str);
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*str = NULL;
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return -1;
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}
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return ret;
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}
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/* This code is public domain -- Will Hartung 4/9/09 */
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static inline size_t getline(char **lineptr, size_t *n, FILE *stream) {
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char *bufptr = NULL;
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char *p = bufptr;
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size_t size;
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int c;
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if (lineptr == NULL) {
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return -1;
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}
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if (stream == NULL) {
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return -1;
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}
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if (n == NULL) {
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return -1;
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}
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bufptr = *lineptr;
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size = *n;
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c = fgetc(stream);
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if (c == EOF) {
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return -1;
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}
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if (bufptr == NULL) {
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bufptr = malloc(128);
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if (bufptr == NULL) {
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return -1;
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}
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size = 128;
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}
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p = bufptr;
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while (c != EOF) {
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if ((p - bufptr) > (size - 1)) {
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size = size + 128;
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bufptr = realloc(bufptr, size);
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if (bufptr == NULL) {
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return -1;
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}
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}
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*p++ = c;
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if (c == '\n') {
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break;
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}
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c = fgetc(stream);
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}
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*p++ = '\0';
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*lineptr = bufptr;
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*n = size;
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return p - bufptr - 1;
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} |