f53df7da64
Code submissions have continually suffered from formatting inconsistencies that constantly have to be addressed. Using clang-format simplifies this by making code formatting more consistent, and allows automation of the code formatting so that maintainers can focus more on the code itself instead of code formatting.
98 lines
2.1 KiB
C
98 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2014 Hugh Bailey <obs.jim@gmail.com>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include "bmem.h"
|
|
#include "pipe.h"
|
|
|
|
struct os_process_pipe {
|
|
bool read_pipe;
|
|
FILE *file;
|
|
};
|
|
|
|
os_process_pipe_t *os_process_pipe_create(const char *cmd_line,
|
|
const char *type)
|
|
{
|
|
struct os_process_pipe pipe = {0};
|
|
struct os_process_pipe *out;
|
|
|
|
if (!cmd_line || !type) {
|
|
return NULL;
|
|
}
|
|
|
|
pipe.file = popen(cmd_line, type);
|
|
pipe.read_pipe = *type == 'r';
|
|
|
|
if (pipe.file == (FILE *)-1 || pipe.file == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
out = bmalloc(sizeof(pipe));
|
|
*out = pipe;
|
|
return out;
|
|
}
|
|
|
|
int os_process_pipe_destroy(os_process_pipe_t *pp)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (pp) {
|
|
int status = pclose(pp->file);
|
|
if (WIFEXITED(status))
|
|
ret = (int)(char)WEXITSTATUS(status);
|
|
bfree(pp);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
size_t os_process_pipe_read(os_process_pipe_t *pp, uint8_t *data, size_t len)
|
|
{
|
|
if (!pp) {
|
|
return 0;
|
|
}
|
|
if (!pp->read_pipe) {
|
|
return 0;
|
|
}
|
|
|
|
return fread(data, 1, len, pp->file);
|
|
}
|
|
|
|
size_t os_process_pipe_read_err(os_process_pipe_t *pp, uint8_t *data,
|
|
size_t len)
|
|
{
|
|
/* XXX: unsupported on posix */
|
|
UNUSED_PARAMETER(pp);
|
|
UNUSED_PARAMETER(data);
|
|
UNUSED_PARAMETER(len);
|
|
return 0;
|
|
}
|
|
|
|
size_t os_process_pipe_write(os_process_pipe_t *pp, const uint8_t *data,
|
|
size_t len)
|
|
{
|
|
if (!pp) {
|
|
return 0;
|
|
}
|
|
if (pp->read_pipe) {
|
|
return 0;
|
|
}
|
|
|
|
return fwrite(data, 1, len, pp->file);
|
|
}
|