diff options
Diffstat (limited to 'urt/rle_open_f.c')
| -rw-r--r-- | urt/rle_open_f.c | 63 |
1 files changed, 19 insertions, 44 deletions
diff --git a/urt/rle_open_f.c b/urt/rle_open_f.c index ae8548b9..65362a53 100644 --- a/urt/rle_open_f.c +++ b/urt/rle_open_f.c @@ -1,7 +1,7 @@ -/* +/* * rle_open_f.c - Open a file with defaults. - * - * Author : Jerry Winters + * + * Author : Jerry Winters * EECS Dept. * University of Michigan * Date: 11/14/89 @@ -37,8 +37,8 @@ static FILE * -my_popen(const char * const cmd, - const char * const mode, +my_popen(const char * const cmd, + const char * const mode, int * const pid) { FILE *retfile; @@ -55,7 +55,7 @@ my_popen(const char * const cmd, if (pm_pipe(pipefd) < 0 ) return NULL; - + /* Flush known files. */ fflush(stdout); fflush(stderr); @@ -86,7 +86,7 @@ my_popen(const char * const cmd, if ( execl("/bin/sh", "sh", "-c", cmd, NULL) < 0 ) exit(127); /* NOTREACHED */ - } + } /* Close file descriptors, and gen up a FILE ptr */ if ( *mode == 'r' ) @@ -173,10 +173,10 @@ dealWithSubprocess(const char * const file_name, /* Real file, not stdin or stdout. If name ends in ".Z", * pipe from/to un/compress (depending on r/w mode). - * + * * If it starts with "|", popen that command. */ - + cp = file_name + strlen(file_name) - 2; /* Pipe case. */ if (file_name[0] == '|') { @@ -198,14 +198,14 @@ dealWithSubprocess(const char * const file_name, const char * command; *noSubprocessP = FALSE; - + if (*mode == 'w') pm_asprintf(&command, "compress > %s", file_name); else if (*mode == 'a') pm_asprintf(&command, "compress >> %s", file_name); else pm_asprintf(&command, "compress -d < %s", file_name); - + *fpP = my_popen(command, mode, &thepid); if (*fpP == NULL) @@ -227,8 +227,8 @@ dealWithSubprocess(const char * const file_name, -/* - * Purpose : Open a file for input or ouput as controlled by the mode +/* + * Purpose : Open a file for input or output as controlled by the mode * parameter. If no file name is specified (ie. file_name is null) then * a pointer to stdin or stdout will be returned. The calling routine may * call this routine with a file name of "-". For this case rle_open_f @@ -246,11 +246,11 @@ dealWithSubprocess(const char * const file_name, * * output: * a file pointer - * + * */ FILE * -rle_open_f_noexit(const char * const prog_name, - const char * const file_name, +rle_open_f_noexit(const char * const prog_name, + const char * const file_name, const char * const mode ) { FILE * retval; @@ -265,12 +265,12 @@ rle_open_f_noexit(const char * const prog_name, fp = stdout; /* Set the default value */ else fp = stdin; - + if (file_name != NULL && !streq(file_name, "-")) { bool noSubprocess; dealWithSubprocess(file_name, mode, &catching_children, pids, &fp, &noSubprocess, &err_str); - + if (!err_str) { if (noSubprocess) { /* Ordinary, boring file case. */ @@ -286,7 +286,7 @@ rle_open_f_noexit(const char * const prog_name, mode_string[0] = mode[0]; mode_string[1] = 'b'; strcpy( mode_string + 2, mode + 1 ); - + fp = fopen(file_name, mode_string); if (fp == NULL ) err_str = "%s: can't open %s for %s: "; @@ -322,28 +322,3 @@ rle_open_f(const char * prog_name, const char * file_name, const char * mode) return fp; } - -/***************************************************************** - * TAG( rle_close_f ) - * - * Close a file opened by rle_open_f. If the file is stdin or stdout, - * it will not be closed. - * Inputs: - * fd: File to close. - * Outputs: - * None. - * Assumptions: - * fd is open. - * Algorithm: - * If fd is NULL, just return. - * If fd is stdin or stdout, don't close it. Otherwise, call fclose. - */ -void -rle_close_f( fd ) - FILE *fd; -{ - if ( fd == NULL || fd == stdin || fd == stdout ) - return; - else - fclose( fd ); -} |