Switch charfuncs to returning number of read/written characters

[onak.git] / armor.c

diff --git a/armor.c b/armor.c
index 1341950c77af48152e1f7c8189c0c66d03217e1f..f218b5595fdf5b8199a30e984a310f03da38f1c9 100644 (file)
--- a/armor.c
+++ b/armor.c
@@ -96,7 +96,7 @@ struct armor_context {
        /** A running CRC24 of the data we've seen. */
        long crc24;
        /** The function to output a character. */
-       int (*putchar_func)(void *ctx, size_t count, void *c);
+       size_t (*putchar_func)(void *ctx, size_t count, void *c);
        /** Context for putchar_func. */
        void *ctx;
 };
@@ -203,7 +203,7 @@ static int armor_putchar_int(void *ctx, unsigned char c)
 }
 
 
-static int armor_putchar(void *ctx, size_t count, void *c)
+static size_t armor_putchar(void *ctx, size_t count, void *c)
 {
        int i;
 
@@ -211,8 +211,8 @@ static int armor_putchar(void *ctx, size_t count, void *c)
        for (i = 0; i < count; i++) {
                armor_putchar_int(ctx, ((char *) c)[i]);
        }
-       
-       return 0;
+
+       return count;
 }
 
 /**
@@ -228,7 +228,7 @@ struct dearmor_context {
        /** A running CRC24 of the data we've seen. */
        long crc24;
        /** The function to get the next character. */
-       int (*getchar_func)(void *ctx, size_t count, void *c);
+       size_t (*getchar_func)(void *ctx, size_t count, void *c);
        /** Context for getchar_func. */
        void *ctx;
 };
@@ -309,7 +309,7 @@ static int dearmor_getchar(void *ctx, unsigned char *c)
        return (tmpc == 64);
 }
 
-static int dearmor_getchar_c(void *ctx, size_t count, void *c)
+static size_t dearmor_getchar_c(void *ctx, size_t count, void *c)
 {
        int i, rc = 0;
 
@@ -317,10 +317,10 @@ static int dearmor_getchar_c(void *ctx, size_t count, void *c)
                rc = dearmor_getchar(ctx, &((unsigned char *) c)[i]);
        }
 
-       return rc;
+       return (rc == 0) ? i : 0;
 }
 
-int armor_openpgp_stream(int (*putchar_func)(void *ctx, size_t count,
+int armor_openpgp_stream(size_t (*putchar_func)(void *ctx, size_t count,
                                                void *c),
                                void *ctx,
                                struct openpgp_packet_list *packets)
@@ -348,7 +348,7 @@ int armor_openpgp_stream(int (*putchar_func)(void *ctx, size_t count,
        return 0;
 }
 
-int dearmor_openpgp_stream(int (*getchar_func)(void *ctx, size_t count,
+int dearmor_openpgp_stream(size_t (*getchar_func)(void *ctx, size_t count,
                                                void *c),
                                void *ctx,
                                struct openpgp_packet_list **packets)
@@ -363,7 +363,7 @@ int dearmor_openpgp_stream(int (*getchar_func)(void *ctx, size_t count,
         * with :s in them, then a blank line, then the data.
         */
        state = 1;
-       while (state != 4 && !getchar_func(ctx, 1, &curchar)) {
+       while (state != 4 && getchar_func(ctx, 1, &curchar) == 1) {
                switch (state) {
                        case 0:
                                if (curchar == '\n') {