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Replace popen by our own code to help with Windows long files (e.g. those

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with a space in the name).
This commit is contained in:
Werner Koch 2007-10-22 19:07:56 +00:00
parent c12ce55b25
commit 0e8820b2ab
2 changed files with 45 additions and 15 deletions
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6
tools/ChangeLog
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@ -1,3 +1,9 @@
2007-10-22 Werner Koch <wk@g10code.com>
* gpgconf-comp.c (retrieve_options_from_program): Replace use of
popen by our gnupg_spawn_process_fd. This is required because
popen under Windows can't handle long filenames.
2007-10-19 Werner Koch <wk@g10code.com>
* symcryptrun.c (confucius_get_pass): Use utf8 switching functions.

54
tools/gpgconf-comp.c
View File

@ -64,8 +64,6 @@
/* TODO:
Components: Add more components and their options.
Robustness: Do more validation. Call programs to do validation for us.
Don't use popen, as this will not tell us if the program had a
non-zero exit code.
Add options to change backend binary path.
Extract binary path for some backends from gpgsm/gpg config.
*/
@ -1626,21 +1624,40 @@ get_config_pathname (gc_component_t component, gc_backend_t backend)
static void
retrieve_options_from_program (gc_component_t component, gc_backend_t backend)
{
char *cmd_line;
gpg_error_t err;
int filedes[2];
const char *pgmname;
const char *argv[2];
int exitcode;
pid_t pid;
char *line = NULL;
size_t line_len = 0;
ssize_t length;
FILE *config;
char *config_pathname;
cmd_line = xasprintf ("%s --gpgconf-list",
gc_backend[backend].module_name ?
gnupg_module_name (gc_backend[backend].module_name) :
gc_backend[backend].program );
err = gnupg_create_inbound_pipe (filedes);
if (err)
gc_error (1, 0, _("error creating a pipe: %s\n"), gpg_strerror (err));
config = popen (cmd_line, "r");
pgmname = (gc_backend[backend].module_name
? gnupg_module_name (gc_backend[backend].module_name)
: gc_backend[backend].program );
argv[0] = "--gpgconf-list";
argv[1] = NULL;
err = gnupg_spawn_process_fd (pgmname, argv, -1, filedes[1], -1, &pid);
if (err)
{
close (filedes[0]);
close (filedes[1]);
gc_error (1, 0, "could not gather active options from `%s': %s",
pgmname, gpg_strerror (err));
}
close (filedes[1]);
config = fdopen (filedes[0], "r");
if (!config)
gc_error (1, errno, "could not gather active options from %s", cmd_line);
gc_error (1, errno, "can't fdopen pipe for reading");
while ((length = read_line (config, &line, &line_len, NULL)) > 0)
{
@ -1671,9 +1688,11 @@ retrieve_options_from_program (gc_component_t component, gc_backend_t backend)
errno = 0;
flags = strtoul (linep, &tail, 0);
if (errno)
gc_error (1, errno, "malformed flags in option %s from %s", line, cmd_line);
gc_error (1, errno, "malformed flags in option %s from %s",
line, pgmname);
if (!(*tail == '\0' || *tail == ':' || *tail == ' '))
gc_error (1, 0, "garbage after flags in option %s from %s", line, cmd_line);
gc_error (1, 0, "garbage after flags in option %s from %s",
line, pgmname);
linep = end;
}
@ -1701,7 +1720,7 @@ retrieve_options_from_program (gc_component_t component, gc_backend_t backend)
{
if (option->active)
gc_error (1, errno, "option %s returned twice from %s",
line, cmd_line);
line, pgmname);
option->active = 1;
option->flags |= flags;
@ -1710,10 +1729,15 @@ retrieve_options_from_program (gc_component_t component, gc_backend_t backend)
}
}
if (length < 0 || ferror (config))
gc_error (1, errno, "error reading from %s", cmd_line);
gc_error (1, errno, "error reading from %s",pgmname);
if (fclose (config) && ferror (config))
gc_error (1, errno, "error closing %s", cmd_line);
xfree (cmd_line);
gc_error (1, errno, "error closing %s", pgmname);
err = gnupg_wait_process (pgmname, pid, &exitcode);
if (err)
gc_error (1, 0, "running %s failed (exitcode=%d): %s",
pgmname, exitcode, gpg_strerror (err));
/* At this point, we can parse the configuration file. */
config_pathname = get_config_pathname (component, backend);