diff options
Diffstat (limited to 'etc.c')
| -rw-r--r-- | etc.c | 54 |
1 files changed, 53 insertions, 1 deletions
@@ -1,4 +1,4 @@ -/* $Id: etc.c,v 1.52 2003/01/17 17:06:57 ukai Exp $ */ +/* $Id: etc.c,v 1.53 2003/01/22 16:10:28 ukai Exp $ */ #include "fm.h" #include <pwd.h> #include "myctype.h" @@ -1339,6 +1339,58 @@ setup_child(int child, int i, int f) fmInitialized = FALSE; } +pid_t +open_pipe_rw(FILE **fr, FILE **fw) +{ + int fdr[2]; + int fdw[2]; + pid_t pid; + + if (fr && pipe(fdr) < 0) + goto err0; + if (fw && pipe(fdw) < 0) + goto err1; + + flush_tty(); + pid = fork(); + if (pid < 0) + goto err2; + if (pid == 0) { + /* child */ + if (fr) { + close(fdr[0]); + dup2(fdr[1], 1); + } + if (fw) { + close(fdw[1]); + dup2(fdw[0], 0); + } + } + else { + if (fr) { + close(fdr[1]); + *fr = fdopen(fdr[0], "r"); + } + if (fw) { + close(fdw[0]); + *fw = fdopen(fdw[1], "w"); + } + } + return pid; + err2: + if (fw) { + close(fdw[0]); + close(fdw[1]); + } + err1: + if (fr) { + close(fdr[0]); + close(fdr[1]); + } + err0: + return (pid_t) -1; +} + void myExec(char *command) { |