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-rw-r--r--boehm-gc/if_not_there.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/boehm-gc/if_not_there.c b/boehm-gc/if_not_there.c
new file mode 100644
index 000000000..8691e9259
--- /dev/null
+++ b/boehm-gc/if_not_there.c
@@ -0,0 +1,41 @@
+/* Conditionally execute a command based if the file argv[1] doesn't exist */
+/* Except for execvp, we stick to ANSI C. */
+# include "private/gcconfig.h"
+# include <stdio.h>
+# include <stdlib.h>
+# include <unistd.h>
+#ifdef __DJGPP__
+#include <dirent.h>
+#endif /* __DJGPP__ */
+
+int main(argc, argv, envp)
+int argc;
+char ** argv;
+char ** envp;
+{
+ FILE * f;
+#ifdef __DJGPP__
+ DIR * d;
+#endif /* __DJGPP__ */
+ if (argc < 3) goto Usage;
+ if ((f = fopen(argv[1], "rb")) != 0
+ || (f = fopen(argv[1], "r")) != 0) {
+ fclose(f);
+ return(0);
+ }
+#ifdef __DJGPP__
+ if ((d = opendir(argv[1])) != 0) {
+ closedir(d);
+ return(0);
+ }
+#endif
+ printf("^^^^Starting command^^^^\n");
+ fflush(stdout);
+ execvp(argv[2], argv+2);
+ exit(1);
+
+Usage:
+ fprintf(stderr, "Usage: %s file_name command\n", argv[0]);
+ return(1);
+}
+