blob: c544d5dd19c2b774fed707b6fc482c048ae4c6f8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <io.h>
int fputc(int c, FILE *stream)
{
if (!stream) {
errno = EINVAL;
return EOF;
}
// Special case for string buffer operations (snprintf)
// When fd is -1, we're writing to a string buffer
if (stream->fd == -1 && stream->buf != NULL) {
// Check if there's space (leave room for null terminator)
if (stream->buf_len >= stream->buf_size - 1) {
return EOF;
}
stream->buf[stream->buf_len++] = (char)c;
return (unsigned char)c;
}
// For regular file operations, use fwrite
return fwrite(&c, 1, 1, stream) ? c : EOF;
}
|
