Imported Upstream version 1.3.14

[debian/gzip] / sample / zread.c

diff --git a/sample/zread.c b/sample/zread.c
index 3163d42a55892578a86e76b0172587c0f17b3728..8492dc9c8ee75ae43acec483b15a4e558518badc 100644 (file)
--- a/sample/zread.c
+++ b/sample/zread.c
@@ -1,4 +1,6 @@
+#include <config.h>
 #include <stdio.h>
+#include <stdlib.h>
 
 /* Trivial example of reading a gzip'ed file or gzip'ed standard input
  * using stdio functions fread(), getc(), etc... fseek() is not supported.
@@ -19,7 +21,7 @@ int main(argc, argv)
 
     if (argc < 1 || argc > 2) {
        fprintf(stderr, "usage: %s [file[.gz]]\n", argv[0]);
-       exit(1);
+       exit(EXIT_FAILURE);
     }
     strcpy(cmd, "gzip -dc ");  /* use "gzip -c" for zwrite */
     if (argc == 2) {
@@ -28,13 +30,13 @@ int main(argc, argv)
     infile = popen(cmd, "r");  /* use "w" for zwrite */
     if (infile == NULL) {
        fprintf(stderr, "%s: popen('%s', 'r') failed\n", argv[0], cmd);
-       exit(1);
+       exit(EXIT_FAILURE);
     }
     /* Read one byte using getc: */
     n = getc(infile);
     if (n == EOF) {
        pclose(infile);
-       exit(0);
+       exit(EXIT_SUCCESS);
     }
     putchar(n);
 
@@ -46,8 +48,8 @@ int main(argc, argv)
     }
     if (pclose(infile) != 0) {
        fprintf(stderr, "%s: pclose failed\n", argv[0]);
-       exit(1);
+       exit(EXIT_FAILURE);
     }
-    exit(0);
+    exit(EXIT_SUCCESS);
     return 0; /* just to make compiler happy */
 }