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Some exec cleanups and tweaks for photo ID and keyserver execution

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This commit is contained in:
David Shaw 2001-12-27 20:48:05 +00:00
parent 2450c71ac3
commit 1a2d0ebc11
10 changed files with 107 additions and 44 deletions
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78
g10/exec.c
View file

@ -24,7 +24,7 @@
#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
#ifndef HAVE_DOSISH_SYSTEM
#ifndef EXEC_TEMPFILE_ONLY
#include <sys/wait.h>
#endif
#include <fcntl.h>
@ -58,9 +58,21 @@ static int make_tempdir(struct exec_info *info)
{
#ifdef __riscos__
tmp="<Wimp$ScrapDir>";
#elsif HAVE_DOSISH_SYSTEM
tmp=m_alloc(1024);
GetTempPath(1023,tmp);
#elif defined (__MINGW32__) || defined (__CYGWIN32__)
tmp=m_alloc(256);
if(GetTempPath(256,tmp)==0)
strcpy(tmp,"c:\temp");
else
{
int len=strlen(tmp);
/* GetTempPath may return with \ on the end */
while(len>0 && tmp[len-1]=='\\')
{
tmp[len-1]='\0';
len--;
}
}
#else
tmp="/tmp";
#endif
@ -72,7 +84,7 @@ static int make_tempdir(struct exec_info *info)
sprintf(info->tempdir,"%s" DIRSEP_S "gpg-XXXXXX",tmp);
#ifdef HAVE_DOSISH_SYSTEM
#if defined (__MINGW32__) || defined (__CYGWIN32__)
m_free(tmp);
#endif
@ -87,16 +99,19 @@ static int make_tempdir(struct exec_info *info)
sprintf(info->tempfile_in,"%s" DIRSEP_S "datain" EXTSEP_S "%s",
info->tempdir,info->binary?"bin":"txt");
info->tempfile_out=m_alloc(strlen(info->tempdir)+1+11+1);
sprintf(info->tempfile_out,"%s" DIRSEP_S "dataout" EXTSEP_S "%s",
info->tempdir,info->binary?"bin":"txt");
if(!info->writeonly)
{
info->tempfile_out=m_alloc(strlen(info->tempdir)+1+11+1);
sprintf(info->tempfile_out,"%s" DIRSEP_S "dataout" EXTSEP_S "%s",
info->tempdir,info->binary?"bin":"txt");
}
}
return info->madedir?0:G10ERR_GENERAL;
}
/* Expands %i and %o in the args to the full temp files (within the
temp directory */
/* Expands %i and %o in the args to the full temp files within the
temp directory. */
static int expand_args(struct exec_info *info,const char *args_in)
{
const char *ch=args_in;
@ -193,10 +208,8 @@ static int expand_args(struct exec_info *info,const char *args_in)
}
/* Either handles the tempfile creation, or the fork/exec. If it
returns ok, then info->tochild is a FILE * that can be written
to. */
/* The rules are: if there are no args, then it's a fork/exec/pipe.
returns ok, then info->tochild is a FILE * that can be written to.
The rules are: if there are no args, then it's a fork/exec/pipe.
If there are args, but no tempfiles, then it's a fork/exec/pipe via
shell -c. If there are tempfiles, then it's a system. */
@ -355,10 +368,9 @@ int exec_write(struct exec_info **info,const char *program,
goto fail;
}
return 0;
ret=0;
fail:
exec_finish(*info);
return ret;
}
@ -379,12 +391,21 @@ int exec_read(struct exec_info *info)
{
log_error(_("system error while calling external program: %s\n"),
strerror(errno));
info->progreturn=127;
goto fail;
}
else
{
#ifdef WEXITSTATUS
info->progreturn=WEXITSTATUS(info->progreturn);
#else
info->progreturn/=256;
#endif
}
#ifndef HAVE_DOSISH_SYSTEM
info->progreturn=WEXITSTATUS(info->progreturn);
#endif
/* 127 is the magic value returned from system() to indicate
that the shell could not be executed, or from /bin/sh to
indicate that the program could not be executed. */
if(info->progreturn==127)
{
@ -405,10 +426,9 @@ int exec_read(struct exec_info *info)
}
}
return 0;
ret=0;
fail:
exec_finish(info);
return ret;
}
@ -436,12 +456,22 @@ int exec_finish(struct exec_info *info)
if(info->madedir && !info->keep_temp_files)
{
if(info->tempfile_in)
unlink(info->tempfile_in);
{
if(unlink(info->tempfile_in)==-1)
log_info(_("Warning: unable to remove tempfile (%s) \"%s\": %s\n"),
"in",info->tempfile_in,strerror(errno));
}
if(info->tempfile_out)
unlink(info->tempfile_out);
{
if(unlink(info->tempfile_out)==-1)
log_info(_("Warning: unable to remove tempfile (%s) \"%s\": %s\n"),
"out",info->tempfile_out,strerror(errno));
}
rmdir(info->tempdir);
if(rmdir(info->tempdir)==-1)
log_info(_("Warning: unable to remove temp directory \"%s\": %s\n"),
info->tempdir,strerror(errno));
}
m_free(info->command);