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[SIGAR-116] check return value from read() in sigar_file2str()

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This commit is contained in:
Doug MacEachern 2008-08-05 23:49:58 +00:00
parent b0fad8130c
commit 1a0db053ed
1 changed files with 9 additions and 4 deletions
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13
src/sigar_util.c
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@ -836,18 +836,23 @@ SIGAR_DECLARE(int) sigar_rpc_ping(char *host,
int sigar_file2str(const char *fname, char *buffer, int buflen) int sigar_file2str(const char *fname, char *buffer, int buflen)
{ {
int len; int len, status;
int fd = open(fname, O_RDONLY); int fd = open(fname, O_RDONLY);
if (fd < 0) { if (fd < 0) {
return ENOENT; return ENOENT;
} }
len = read(fd, buffer, buflen); if ((len = read(fd, buffer, buflen)) < 0) {
buffer[len] = '\0'; status = errno;
}
else {
status = SIGAR_OK;
buffer[len] = '\0';
}
close(fd); close(fd);
return SIGAR_OK; return status;
} }
#ifdef WIN32 #ifdef WIN32