Stuff

2 files changed, 126 insertions, 56 deletions

diff --git a/archival/gzip.c b/archival/gzip.c
index c36270647..500d6d7e0 100644
--- a/archival/gzip.c
+++ b/archival/gzip.c
@@ -7,9 +7,9 @@
 #include "internal.h"
 #ifdef BB_GZIP
 
-#ifndef BB_ZCAT
-#error you need zcat to have gzip support!
-#endif
+//#ifndef BB_ZCAT
+//#error you need zcat to have gzip support!
+//#endif
 
 static const char gzip_usage[] =
     "gzip [OPTION]... [FILE]...\n\n"
@@ -276,7 +276,7 @@ extern int save_orig_name; /* set if original name must be saved */
 #define WARN(msg) {if (!quiet) fprintf msg ; \
                    if (exit_code == OK) exit_code = WARNING;}
 
-local void do_exit(int exitcode);
+local void do_exit(int exitcode) __attribute__ ((noreturn));
 
         /* in zip.c: */
 extern int zip        OF((int in, int out));
@@ -1762,9 +1762,6 @@ unsigned outcnt;           /* bytes in output buffer */
 
 /* local functions */
 
-local void treat_stdin  OF((void));
-static int (*work) OF((int infile, int outfile)) = zip; /* function to call */
-
 #define strequ(s1, s2) (strcmp((s1),(s2)) == 0)
 
 /* ======================================================================== */
@@ -1774,6 +1771,9 @@ static int (*work) OF((int infile, int outfile)) = zip; /* function to call */
 int gzip_main(int argc, char ** argv)
 {
 
+    int inFileNum;
+    int outFileNum;
+
     /* Parse any options */
     while (--argc > 0 && **(++argv) == '-') {
         while (*(++(*argv))) {
@@ -1817,32 +1817,67 @@ int gzip_main(int argc, char ** argv)
     ALLOC(ush, tab_prefix1, 1L<<(BITS-1));
 #endif
 
-    /* And get to work */
-    treat_stdin();
-    do_exit(exit_code);
-    return exit_code; /* just to avoid lint warning */
-}
+    if (tostdout==1) {
+        /* And get to work */
+        SET_BINARY_MODE(fileno(stdout));
+        strcpy(ifname, "stdin");
+        strcpy(ofname, "stdout");
+        inFileNum=fileno(stdin);
+        outFileNum=fileno(stdout);
 
-/* ========================================================================
- * Compress or decompress stdin
- */
-local void treat_stdin()
-{
-    SET_BINARY_MODE(fileno(stdout));
-    strcpy(ifname, "stdin");
-    strcpy(ofname, "stdout");
+        /* Get the time stamp on the input file. */
+        time_stamp = 0; /* time unknown by default */
 
-    /* Get the time stamp on the input file. */
-    time_stamp = 0; /* time unknown by default */
+        ifile_size = -1L; /* convention for unknown size */
 
-    ifile_size = -1L; /* convention for unknown size */
+        clear_bufs(); /* clear input and output buffers */
+        part_nb = 0;
 
-    clear_bufs(); /* clear input and output buffers */
-    part_nb = 0;
+        /* Actually do the compression/decompression. */
+        zip(inFileNum, outFileNum);
 
-    /* Actually do the compression/decompression. Loop over zipped members.
-     */
-    if ((*work)(fileno(stdin), fileno(stdout)) != OK) return;
+    } else {
+        int result;
+        struct stat statBuf;
+
+        /* And get to work */
+        if (*argv=='\0')
+            usage(gzip_usage);
+        strncpy(ifname, *argv, MAX_PATH_LEN);
+        strncpy(ofname, *argv, MAX_PATH_LEN-4);
+        strcat(ofname, ".gz");
+
+        inFileNum=open( ifname, O_RDONLY);
+        if (inFileNum < 0) {
+            perror(ifname);
+            do_exit(WARNING);
+        }
+        result = stat(ifname, &statBuf);
+        if (result < 0) {
+            perror(ifname);
+            do_exit(WARNING);
+        }
+
+        outFileNum=open( ofname, O_RDONLY);
+        if (outFileNum < 0) {
+            perror(ofname);
+            do_exit(WARNING);
+        }
+        SET_BINARY_MODE(outFileNum);
+
+        /* Get the time stamp on the input file. */
+        time_stamp = statBuf.st_ctime; /* time unknown by default */
+
+        ifile_size = statBuf.st_size; /* convention for unknown size */
+
+        clear_bufs(); /* clear input and output buffers */
+        part_nb = 0;
+
+        /* Actually do the compression/decompression. */
+        zip(inFileNum, outFileNum);
+    }
+
+    do_exit(exit_code);
 }
 
 /* ========================================================================
diff --git a/gzip.c b/gzip.c
index c36270647..500d6d7e0 100644
--- a/gzip.c
+++ b/gzip.c
@@ -7,9 +7,9 @@
 #include "internal.h"
 #ifdef BB_GZIP
 
-#ifndef BB_ZCAT
-#error you need zcat to have gzip support!
-#endif
+//#ifndef BB_ZCAT
+//#error you need zcat to have gzip support!
+//#endif
 
 static const char gzip_usage[] =
     "gzip [OPTION]... [FILE]...\n\n"
@@ -276,7 +276,7 @@ extern int save_orig_name; /* set if original name must be saved */
 #define WARN(msg) {if (!quiet) fprintf msg ; \
                    if (exit_code == OK) exit_code = WARNING;}
 
-local void do_exit(int exitcode);
+local void do_exit(int exitcode) __attribute__ ((noreturn));
 
         /* in zip.c: */
 extern int zip        OF((int in, int out));
@@ -1762,9 +1762,6 @@ unsigned outcnt;           /* bytes in output buffer */
 
 /* local functions */
 
-local void treat_stdin  OF((void));
-static int (*work) OF((int infile, int outfile)) = zip; /* function to call */
-
 #define strequ(s1, s2) (strcmp((s1),(s2)) == 0)
 
 /* ======================================================================== */
@@ -1774,6 +1771,9 @@ static int (*work) OF((int infile, int outfile)) = zip; /* function to call */
 int gzip_main(int argc, char ** argv)
 {
 
+    int inFileNum;
+    int outFileNum;
+
     /* Parse any options */
     while (--argc > 0 && **(++argv) == '-') {
         while (*(++(*argv))) {
@@ -1817,32 +1817,67 @@ int gzip_main(int argc, char ** argv)
     ALLOC(ush, tab_prefix1, 1L<<(BITS-1));
 #endif
 
-    /* And get to work */
-    treat_stdin();
-    do_exit(exit_code);
-    return exit_code; /* just to avoid lint warning */
-}
+    if (tostdout==1) {
+        /* And get to work */
+        SET_BINARY_MODE(fileno(stdout));
+        strcpy(ifname, "stdin");
+        strcpy(ofname, "stdout");
+        inFileNum=fileno(stdin);
+        outFileNum=fileno(stdout);
 
-/* ========================================================================
- * Compress or decompress stdin
- */
-local void treat_stdin()
-{
-    SET_BINARY_MODE(fileno(stdout));
-    strcpy(ifname, "stdin");
-    strcpy(ofname, "stdout");
+        /* Get the time stamp on the input file. */
+        time_stamp = 0; /* time unknown by default */
 
-    /* Get the time stamp on the input file. */
-    time_stamp = 0; /* time unknown by default */
+        ifile_size = -1L; /* convention for unknown size */
 
-    ifile_size = -1L; /* convention for unknown size */
+        clear_bufs(); /* clear input and output buffers */
+        part_nb = 0;
 
-    clear_bufs(); /* clear input and output buffers */
-    part_nb = 0;
+        /* Actually do the compression/decompression. */
+        zip(inFileNum, outFileNum);
 
-    /* Actually do the compression/decompression. Loop over zipped members.
-     */
-    if ((*work)(fileno(stdin), fileno(stdout)) != OK) return;
+    } else {
+        int result;
+        struct stat statBuf;
+
+        /* And get to work */
+        if (*argv=='\0')
+            usage(gzip_usage);
+        strncpy(ifname, *argv, MAX_PATH_LEN);
+        strncpy(ofname, *argv, MAX_PATH_LEN-4);
+        strcat(ofname, ".gz");
+
+        inFileNum=open( ifname, O_RDONLY);
+        if (inFileNum < 0) {
+            perror(ifname);
+            do_exit(WARNING);
+        }
+        result = stat(ifname, &statBuf);
+        if (result < 0) {
+            perror(ifname);
+            do_exit(WARNING);
+        }
+
+        outFileNum=open( ofname, O_RDONLY);
+        if (outFileNum < 0) {
+            perror(ofname);
+            do_exit(WARNING);
+        }
+        SET_BINARY_MODE(outFileNum);
+
+        /* Get the time stamp on the input file. */
+        time_stamp = statBuf.st_ctime; /* time unknown by default */
+
+        ifile_size = statBuf.st_size; /* convention for unknown size */
+
+        clear_bufs(); /* clear input and output buffers */
+        part_nb = 0;
+
+        /* Actually do the compression/decompression. */
+        zip(inFileNum, outFileNum);
+    }
+
+    do_exit(exit_code);
 }
 
 /* ========================================================================