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xmlwf/readfilemap.c: Address lack of ssize_t for Visual Studio

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This commit is contained in:
Sebastian Pipping 2017-08-23 16:23:33 +02:00
parent ddaa78c708
commit 1bfe015a78
1 changed files with 14 additions and 3 deletions
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17
expat/xmlwf/readfilemap.c
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@ -41,6 +41,17 @@
# include <unistd.h>
#endif
/* Function "read": */
#if defined(_MSC_VER)
/* https://msdn.microsoft.com/en-us/library/wyssk1bs(v=vs.100).aspx */
# define _EXPAT_read _read
# define _EXPAT_read_count_t int
#else /* POSIX */
/* http://pubs.opengroup.org/onlinepubs/009695399/functions/read.html */
# define _EXPAT_read read
# define _EXPAT_read_count_t ssize_t
#endif
#ifndef S_ISREG
#ifndef S_IFREG
#define S_IFREG _S_IFREG
@ -68,7 +79,7 @@ filemap(const char *name,
{
size_t nbytes;
int fd;
ssize_t n;
_EXPAT_read_count_t n;
struct stat sb;
void *p;
@ -106,14 +117,14 @@ filemap(const char *name,
close(fd);
return 0;
}
n = read(fd, p, nbytes);
n = _EXPAT_read(fd, p, nbytes);
if (n < 0) {
perror(name);
free(p);
close(fd);
return 0;
}
if (n != (ssize_t)nbytes) {
if (n != (_EXPAT_read_count_t)nbytes) {
fprintf(stderr, "%s: read unexpected number of bytes\n", name);
free(p);
close(fd);