Signed-off-by: Lukas Sandström <lukass@xxxxxxxxxxxxxxxx>
---
builtin-mailinfo.c | 750 ++++++++++++++++++++++++----------------------------
1 files changed, 348 insertions(+), 402 deletions(-)
diff --git a/builtin-mailinfo.c b/builtin-mailinfo.c
index 2d1520f..329ac43 100644
--- a/builtin-mailinfo.c
+++ b/builtin-mailinfo.c
@@ -5,14 +5,15 @@
#include "cache.h"
#include "builtin.h"
#include "utf8.h"
+#include "strbuf.h"
static FILE *cmitmsg, *patchfile, *fin, *fout;
static int keep_subject;
static const char *metainfo_charset;
-static char line[1000];
-static char name[1000];
-static char email[1000];
+static struct strbuf line = STRBUF_INIT;
+static struct strbuf name = STRBUF_INIT;
+static struct strbuf email = STRBUF_INIT;
static enum {
TE_DONTCARE, TE_QP, TE_BASE64,
@@ -21,74 +22,77 @@ static enum {
TYPE_TEXT, TYPE_OTHER,
} message_type;
-static char charset[256];
+static struct strbuf charset = STRBUF_INIT;
static int patch_lines;
-static char **p_hdr_data, **s_hdr_data;
+static struct strbuf **p_hdr_data, **s_hdr_data;
#define MAX_HDR_PARSED 10
#define MAX_BOUNDARIES 5
-static char *sanity_check(char *name, char *email)
+static void get_sane_name(struct strbuf *out, struct strbuf *name, struct strbuf *email)
{
- int len = strlen(name);
- if (len < 3 || len > 60)
- return email;
- if (strchr(name, '@') || strchr(name, '<') || strchr(name, '>'))
- return email;
- return name;
+ struct strbuf *src = name;
+ if (name->len < 3 || 60 < name->len || strchr(name->buf, '@') ||
+ strchr(name->buf, '<') || strchr(name->buf, '>'))
+ src = email;
+ else if (name == out)
+ return;
+ strbuf_reset(out);
+ strbuf_addbuf(out, src);
}
-static int bogus_from(char *line)
+static void parse_bogus_from(const struct strbuf *line)
{
/* John Doe <johndoe> */
- char *bra, *ket, *dst, *cp;
+ char *bra, *ket;
/* This is fallback, so do not bother if we already have an
* e-mail address.
*/
- if (*email)
- return 0;
+ if (email.len)
+ return;
- bra = strchr(line, '<');
+ bra = strchr(line->buf, '<');
if (!bra)
- return 0;
+ return;
ket = strchr(bra, '>');
if (!ket)
- return 0;
+ return;
- for (dst = email, cp = bra+1; cp < ket; )
- *dst++ = *cp++;
- *dst = 0;
- for (cp = line; isspace(*cp); cp++)
- ;
- for (bra--; isspace(*bra); bra--)
- *bra = 0;
- cp = sanity_check(cp, email);
- strcpy(name, cp);
- return 1;
+ strbuf_reset(&email);
+ strbuf_add(&email, bra + 1, ket - bra - 1);
+
+ strbuf_reset(&name);
+ strbuf_add(&name, line->buf, bra - line->buf);
+ strbuf_trim(&name);
+ get_sane_name(&name, &name, &email);
}
-static int handle_from(char *in_line)
+static void handle_from(const struct strbuf *from)
{
- char line[1000];
char *at;
- char *dst;
+ size_t el;
+ struct strbuf f;
- strcpy(line, in_line);
- at = strchr(line, '@');
+ strbuf_init(&f, from->len);
+ strbuf_addbuf(&f, from);
+
+ at = strchr(f.buf, '@');
if (!at)
- return bogus_from(line);
+ return parse_bogus_from(from);
/*
* If we already have one email, don't take any confusing lines
*/
- if (*email && strchr(at+1, '@'))
- return 0;
+ if (email.len && strchr(at + 1, '@')) {
+ strbuf_release(&f);
+ return;
+ }
/* Pick up the string around '@', possibly delimited with <>
- * pair; that is the email part. White them out while copying.
+ * pair; that is the email part.
*/
- while (at > line) {
+ while (at > f.buf) {
char c = at[-1];
if (isspace(c))
break;
@@ -98,56 +102,35 @@ static int handle_from(char *in_line)
}
at--;
}
- dst = email;
- for (;;) {
- unsigned char c = *at;
- if (!c || c == '>' || isspace(c)) {
- if (c == '>')
- *at = ' ';
- break;
- }
- *at++ = ' ';
- *dst++ = c;
- }
- *dst++ = 0;
+ el = strcspn(at, " \n\t\r\v\f>");
+ strbuf_reset(&email);
+ strbuf_add(&email, at, el);
+ strbuf_remove(&f, at - f.buf, el + 1);
/* The remainder is name. It could be "John Doe <john.doe@xz>"
- * or "john.doe@xz (John Doe)", but we have whited out the
+ * or "john.doe@xz (John Doe)", but we have removed the
* email part, so trim from both ends, possibly removing
* the () pair at the end.
*/
- at = line + strlen(line);
- while (at > line) {
- unsigned char c = *--at;
- if (!isspace(c)) {
- at[(c == ')') ? 0 : 1] = 0;
- break;
- }
- }
+ strbuf_trim(&f);
+ if (f.buf[0] == '(')
+ strbuf_remove(&name, 0, 1);
+ if (f.len && f.buf[f.len - 1] == ')')
+ strbuf_setlen(&f, f.len - 1);
- at = line;
- for (;;) {
- unsigned char c = *at;
- if (!c || !isspace(c)) {
- if (c == '(')
- at++;
- break;
- }
- at++;
- }
- at = sanity_check(at, email);
- strcpy(name, at);
- return 1;
+ get_sane_name(&name, &f, &email);
+ strbuf_release(&f);
}
-static int handle_header(char *line, char *data, int ofs)
+static void handle_header(struct strbuf **out, const struct strbuf *line)
{
- if (!line || !data)
- return 1;
-
- strcpy(data, line+ofs);
+ if (!*out) {
+ *out = xmalloc(sizeof(struct strbuf));
+ strbuf_init(*out, line->len);
+ } else
+ strbuf_reset(*out);
- return 0;
+ strbuf_addbuf(*out, line);
}
/* NOTE NOTE NOTE. We do not claim we do full MIME. We just attempt
@@ -156,13 +139,13 @@ static int handle_header(char *line, char *data, int ofs)
* case insensitively.
*/
-static int slurp_attr(const char *line, const char *name, char *attr)
+static int slurp_attr(const char *line, const char *name, struct strbuf *attr)
{
const char *ends, *ap = strcasestr(line, name);
size_t sz;
if (!ap) {
- *attr = 0;
+ strbuf_setlen(attr, 0);
return 0;
}
ap += strlen(name);
@@ -173,180 +156,171 @@ static int slurp_attr(const char *line, const char *name, char *attr)
else
ends = "; \t";
sz = strcspn(ap, ends);
- memcpy(attr, ap, sz);
- attr[sz] = 0;
+ strbuf_add(attr, ap, sz);
return 1;
}
-struct content_type {
- char *boundary;
- int boundary_len;
-};
-
-static struct content_type content[MAX_BOUNDARIES];
+static struct strbuf *content[MAX_BOUNDARIES];
-static struct content_type *content_top = content;
+static struct strbuf **content_top = content;
-static int handle_content_type(char *line)
+static void handle_content_type(struct strbuf *line)
{
- char boundary[256];
+ struct strbuf *boundary = xmalloc(sizeof(struct strbuf));
+ strbuf_init(boundary, line->len);
- if (strcasestr(line, "text/") == NULL)
+ if (!strcasestr(line->buf, "text/"))
message_type = TYPE_OTHER;
- if (slurp_attr(line, "boundary=", boundary + 2)) {
- memcpy(boundary, "--", 2);
+ if (slurp_attr(line->buf, "boundary=", boundary)) {
+ strbuf_insert(boundary, 0, "--", 2);
if (content_top++ >= &content[MAX_BOUNDARIES]) {
fprintf(stderr, "Too many boundaries to handle\n");
exit(1);
}
- content_top->boundary_len = strlen(boundary);
- content_top->boundary = xmalloc(content_top->boundary_len+1);
- strcpy(content_top->boundary, boundary);
+ *content_top = boundary;
+ boundary = NULL;
}
- if (slurp_attr(line, "charset=", charset)) {
- int i, c;
- for (i = 0; (c = charset[i]) != 0; i++)
- charset[i] = tolower(c);
+ if (slurp_attr(line->buf, "charset=", &charset))
+ strbuf_tolower(&charset);
+
+ if (boundary) {
+ strbuf_release(boundary);
+ free(boundary);
}
- return 0;
}
-static int handle_content_transfer_encoding(char *line)
+static void handle_content_transfer_encoding(const struct strbuf *line)
{
- if (strcasestr(line, "base64"))
+ if (strcasestr(line->buf, "base64"))
transfer_encoding = TE_BASE64;
- else if (strcasestr(line, "quoted-printable"))
+ else if (strcasestr(line->buf, "quoted-printable"))
transfer_encoding = TE_QP;
else
transfer_encoding = TE_DONTCARE;
- return 0;
-}
-
-static int is_multipart_boundary(const char *line)
-{
- return (!memcmp(line, content_top->boundary, content_top->boundary_len));
}
-static int eatspace(char *line)
+static int is_multipart_boundary(const struct strbuf *line)
{
- int len = strlen(line);
- while (len > 0 && isspace(line[len-1]))
- line[--len] = 0;
- return len;
+ return !strbuf_cmp(line, *content_top);
}
-static char *cleanup_subject(char *subject)
+static void cleanup_subject(struct strbuf *subject)
{
- for (;;) {
- char *p;
- int len, remove;
- switch (*subject) {
+ char *pos;
+ size_t remove;
+ while (subject->len) {
+ switch (*subject->buf) {
case 'r': case 'R':
- if (!memcmp("e:", subject+1, 2)) {
- subject += 3;
+ if (subject->len <= 3)
+ break;
+ if (!memcmp(subject->buf + 1, "e:", 2)) {
+ strbuf_remove(subject, 0, 3);
continue;
}
break;
case ' ': case '\t': case ':':
- subject++;
+ strbuf_remove(subject, 0, 1);
continue;
-
case '[':
- p = strchr(subject, ']');
- if (!p) {
- subject++;
- continue;
- }
- len = strlen(p);
- remove = p - subject;
- if (remove <= len *2) {
- subject = p+1;
- continue;
- }
+ if ((pos = strchr(subject->buf, ']'))) {
+ remove = pos - subject->buf + 1;
+ /* Don't remove too much. */
+ if (remove <= (subject->len - remove + 1) * 2) {
+ strbuf_remove(subject, 0, remove);
+ continue;
+ }
+ } else
+ strbuf_remove(subject, 0, 1);
break;
}
- eatspace(subject);
- return subject;
+ strbuf_trim(subject);
+ return;
}
}
-static void cleanup_space(char *buf)
+static void cleanup_space(struct strbuf *sb)
{
- unsigned char c;
- while ((c = *buf) != 0) {
- buf++;
- if (isspace(c)) {
- buf[-1] = ' ';
- c = *buf;
- while (isspace(c)) {
- int len = strlen(buf);
- memmove(buf, buf+1, len);
- c = *buf;
- }
+ size_t pos, cnt;
+ for (pos = 0; pos < sb->len; pos++) {
+ if (isspace(sb->buf[pos])) {
+ sb->buf[pos] = ' ';
+ for (cnt = 0; isspace(sb->buf[pos + cnt + 1]); cnt++);
+ strbuf_remove(sb, pos + 1, cnt);
}
}
}
-static void decode_header(char *it, unsigned itsize);
+static void decode_header(struct strbuf *line);
static const char *header[MAX_HDR_PARSED] = {
"From","Subject","Date",
};
-static int check_header(char *line, unsigned linesize, char **hdr_data, int overwrite)
+static inline int cmp_header(const struct strbuf *line, const char *hdr)
{
- int i;
+ int len = strlen(hdr);
+ return !strncasecmp(line->buf, hdr, len) && line->len > len &&
+ line->buf[len] == ':' && isspace(line->buf[len + 1]);
+}
+static int check_header(const struct strbuf *line,
+ struct strbuf *hdr_data[], int overwrite)
+{
+ int i, ret = 0, len;
+ struct strbuf sb = STRBUF_INIT;
/* search for the interesting parts */
for (i = 0; header[i]; i++) {
int len = strlen(header[i]);
- if ((!hdr_data[i] || overwrite) &&
- !strncasecmp(line, header[i], len) &&
- line[len] == ':' && isspace(line[len + 1])) {
+ if ((!hdr_data[i] || overwrite) && cmp_header(line, header[i])) {
/* Unwrap inline B and Q encoding, and optionally
* normalize the meta information to utf8.
*/
- decode_header(line + len + 2, linesize - len - 2);
- hdr_data[i] = xmalloc(1000 * sizeof(char));
- if (! handle_header(line, hdr_data[i], len + 2)) {
- return 1;
- }
+ strbuf_add(&sb, line->buf + len + 2, line->len - len -2);
+ decode_header(&sb);
+ handle_header(&hdr_data[i], &sb);
+ ret = 1;
+ goto check_header_out;
}
}
/* Content stuff */
- if (!strncasecmp(line, "Content-Type", 12) &&
- line[12] == ':' && isspace(line[12 + 1])) {
- decode_header(line + 12 + 2, linesize - 12 - 2);
- if (! handle_content_type(line)) {
- return 1;
- }
- }
- if (!strncasecmp(line, "Content-Transfer-Encoding", 25) &&
- line[25] == ':' && isspace(line[25 + 1])) {
- decode_header(line + 25 + 2, linesize - 25 - 2);
- if (! handle_content_transfer_encoding(line)) {
- return 1;
- }
+ if (cmp_header(line, "Content-Type")) {
+ len = strlen("Content-Type: ");
+ strbuf_add(&sb, line->buf + len, line->len - len);
+ decode_header(&sb);
+ strbuf_insert(&sb, 0, "Content-Type: ", len);
+ handle_content_type(&sb);
+ ret = 1;
+ goto check_header_out;
+ }
+ if (cmp_header(line, "Content-Transfer-Encoding")) {
+ len = strlen("Content-Transfer-Encoding: ");
+ strbuf_add(&sb, line->buf + len, line->len - len);
+ decode_header(&sb);
+ handle_content_transfer_encoding(&sb);
+ ret = 1;
+ goto check_header_out;
}
/* for inbody stuff */
- if (!memcmp(">From", line, 5) && isspace(line[5]))
- return 1;
- if (!memcmp("[PATCH]", line, 7) && isspace(line[7])) {
+ if (!prefixcmp(line->buf, ">From") && isspace(line->buf[5]))
+ ret = 1; /* Should this return 0? */
+ goto check_header_out;
+ if (!prefixcmp(line->buf, "[PATCH]") && isspace(line->buf[7])) {
for (i = 0; header[i]; i++) {
if (!memcmp("Subject", header[i], 7)) {
- if (! handle_header(line, hdr_data[i], 0)) {
- return 1;
- }
+ handle_header(&hdr_data[i], line);
+ ret = 1;
+ goto check_header_out;
}
}
}
- /* no match */
- return 0;
+check_header_out:
+ strbuf_release(&sb);
+ return ret;
}
-static int is_rfc2822_header(char *line)
+static int is_rfc2822_header(const struct strbuf *line)
{
/*
* The section that defines the loosest possible
@@ -357,15 +331,15 @@ static int is_rfc2822_header(char *line)
* ftext = %d33-57 / %59-126
*/
int ch;
- char *cp = line;
+ char *cp = line->buf;
/* Count mbox From headers as headers */
- if (!memcmp(line, "From ", 5) || !memcmp(line, ">From ", 6))
+ if (!prefixcmp(cp, "From ") || !prefixcmp(cp, ">From "))
return 1;
while ((ch = *cp++)) {
if (ch == ':')
- return cp != line;
+ return 1;
if ((33 <= ch && ch <= 57) ||
(59 <= ch && ch <= 126))
continue;
@@ -374,34 +348,20 @@ static int is_rfc2822_header(char *line)
return 0;
}
-/*
- * sz is size of 'line' buffer in bytes. Must be reasonably
- * long enough to hold one physical real-world e-mail line.
- */
-static int read_one_header_line(char *line, int sz, FILE *in)
+static int read_one_header_line(struct strbuf *line, FILE *in)
{
- int len;
-
- /*
- * We will read at most (sz-1) bytes and then potentially
- * re-add NUL after it. Accessing line[sz] after this is safe
- * and we can allow len to grow up to and including sz.
- */
- sz--;
-
/* Get the first part of the line. */
- if (!fgets(line, sz, in))
+ if (strbuf_getline(line, in, '\n'))
return 0;
/*
* Is it an empty line or not a valid rfc2822 header?
* If so, stop here, and return false ("not a header")
*/
- len = eatspace(line);
- if (!len || !is_rfc2822_header(line)) {
+ strbuf_rtrim(line);
+ if (!line->len || !is_rfc2822_header(line)) {
/* Re-add the newline */
- line[len] = '\n';
- line[len + 1] = '\0';
+ strbuf_addch(line, '\n');
return 0;
}
@@ -410,65 +370,53 @@ static int read_one_header_line(char *line, int sz, FILE *in)
* Yuck, 2822 header "folding"
*/
for (;;) {
- int peek, addlen;
- static char continuation[1000];
+ int peek;
+ struct strbuf continuation = STRBUF_INIT;
peek = fgetc(in); ungetc(peek, in);
if (peek != ' ' && peek != '\t')
break;
- if (!fgets(continuation, sizeof(continuation), in))
+ if (strbuf_getline(&continuation, in, '\n'))
break;
- addlen = eatspace(continuation);
- if (len < sz - 1) {
- if (addlen >= sz - len)
- addlen = sz - len - 1;
- memcpy(line + len, continuation, addlen);
- line[len] = '\n';
- len += addlen;
- }
+ continuation.buf[0] = '\n';
+ strbuf_rtrim(&continuation);
+ strbuf_addbuf(line, &continuation);
}
- line[len] = 0;
return 1;
}
-static int decode_q_segment(char *in, char *ot, unsigned otsize, char *ep, int rfc2047)
+static struct strbuf *decode_q_segment(const struct strbuf *q_seg, int rfc2047)
{
- char *otbegin = ot;
- char *otend = ot + otsize;
+ const char *in = q_seg->buf;
int c;
- while ((c = *in++) != 0 && (in <= ep)) {
- if (ot == otend) {
- *--ot = '\0';
- return -1;
- }
+ struct strbuf *out = xmalloc(sizeof(struct strbuf));
+ strbuf_init(out, q_seg->len);
+
+ while ((c = *in++) != 0) {
if (c == '=') {
int d = *in++;
if (d == '\n' || !d)
break; /* drop trailing newline */
- *ot++ = ((hexval(d) << 4) | hexval(*in++));
+ strbuf_addch(out, (hexval(d) << 4) | hexval(*in++));
continue;
}
if (rfc2047 && c == '_') /* rfc2047 4.2 (2) */
c = 0x20;
- *ot++ = c;
+ strbuf_addch(out, c);
}
- *ot = 0;
- return (ot - otbegin);
+ return out;
}
-static int decode_b_segment(char *in, char *ot, unsigned otsize, char *ep)
+static struct strbuf *decode_b_segment(const struct strbuf *b_seg)
{
/* Decode in..ep, possibly in-place to ot */
int c, pos = 0, acc = 0;
- char *otbegin = ot;
- char *otend = ot + otsize;
+ const char *in = b_seg->buf;
+ struct strbuf *out = xmalloc(sizeof(struct strbuf));
+ strbuf_init(out, b_seg->len);
- while ((c = *in++) != 0 && (in <= ep)) {
- if (ot == otend) {
- *--ot = '\0';
- return -1;
- }
+ while ((c = *in++) != 0) {
if (c == '+')
c = 62;
else if (c == '/')
@@ -493,21 +441,20 @@ static int decode_b_segment(char *in, char *ot, unsigned otsize, char *ep)
acc = (c << 2);
break;
case 1:
- *ot++ = (acc | (c >> 4));
+ strbuf_addch(out, (acc | (c >> 4)));
acc = (c & 15) << 4;
break;
case 2:
- *ot++ = (acc | (c >> 2));
+ strbuf_addch(out, (acc | (c >> 2)));
acc = (c & 3) << 6;
break;
case 3:
- *ot++ = (acc | c);
+ strbuf_addch(out, (acc | c));
acc = pos = 0;
break;
}
}
- *ot = 0;
- return (ot - otbegin);
+ return out;
}
/*
@@ -521,16 +468,16 @@ static int decode_b_segment(char *in, char *ot, unsigned otsize, char *ep)
* Otherwise, we default to assuming it is Latin1 for historical
* reasons.
*/
-static const char *guess_charset(const char *line, const char *target_charset)
+static const char *guess_charset(const struct strbuf *line, const char *target_charset)
{
if (is_encoding_utf8(target_charset)) {
- if (is_utf8(line))
+ if (is_utf8(line->buf))
return NULL;
}
return "latin1";
}
-static void convert_to_utf8(char *line, unsigned linesize, const char *charset)
+static void convert_to_utf8(struct strbuf *line, const char *charset)
{
char *out;
@@ -542,112 +489,119 @@ static void convert_to_utf8(char *line, unsigned linesize, const char *charset)
if (!strcmp(metainfo_charset, charset))
return;
- out = reencode_string(line, metainfo_charset, charset);
+ out = reencode_string(line->buf, metainfo_charset, charset);
if (!out)
die("cannot convert from %s to %s\n",
charset, metainfo_charset);
- strlcpy(line, out, linesize);
- free(out);
+ strbuf_attach(line, out, strlen(out), strlen(out));
}
-static int decode_header_bq(char *it, unsigned itsize)
+static int decode_header_bq(struct strbuf *it)
{
char *in, *out, *ep, *cp, *sp;
- char outbuf[1000];
+ struct strbuf outbuf = STRBUF_INIT, *dec;
+ struct strbuf charset_q = STRBUF_INIT, piecebuf = STRBUF_INIT;
int rfc2047 = 0;
- in = it;
- out = outbuf;
- while ((ep = strstr(in, "=?")) != NULL) {
- int sz, encoding;
- char charset_q[256], piecebuf[256];
+ in = it->buf;
+ while (in - it->buf <= it->len && (ep = strstr(in, "=?")) != NULL) {
+ int encoding;
+ strbuf_reset(&charset_q);
+ strbuf_reset(&piecebuf);
rfc2047 = 1;
if (in != ep) {
- sz = ep - in;
- memcpy(out, in, sz);
- out += sz;
- in += sz;
+ strbuf_add(&outbuf, in, ep - in);
+ in = ep;
}
/* E.g.
* ep : "=?iso-2022-jp?B?GyR...?= foo"
* ep : "=?ISO-8859-1?Q?Foo=FCbar?= baz"
*/
ep += 2;
- cp = strchr(ep, '?');
- if (!cp)
- return rfc2047; /* no munging */
- for (sp = ep; sp < cp; sp++)
- charset_q[sp - ep] = tolower(*sp);
- charset_q[cp - ep] = 0;
+
+ if (ep - it->buf >= it->len || !(cp = strchr(ep, '?')))
+ goto decode_header_bq_out;
+
+ if (cp + 3 - it->buf > it->len)
+ goto decode_header_bq_out;
+ strbuf_add(&charset_q, ep, cp - ep);
+ strbuf_tolower(&charset_q);
+
encoding = cp[1];
if (!encoding || cp[2] != '?')
- return rfc2047; /* no munging */
+ goto decode_header_bq_out;
ep = strstr(cp + 3, "?=");
if (!ep)
- return rfc2047; /* no munging */
+ goto decode_header_bq_out;
+ strbuf_add(&piecebuf, cp + 3, ep - cp - 3);
switch (tolower(encoding)) {
default:
- return rfc2047; /* no munging */
+ goto decode_header_bq_out;
case 'b':
- sz = decode_b_segment(cp + 3, piecebuf, sizeof(piecebuf), ep);
+ dec = decode_b_segment(&piecebuf);
break;
case 'q':
- sz = decode_q_segment(cp + 3, piecebuf, sizeof(piecebuf), ep, 1);
+ dec = decode_q_segment(&piecebuf, 1);
break;
}
- if (sz < 0)
- return rfc2047;
if (metainfo_charset)
- convert_to_utf8(piecebuf, sizeof(piecebuf), charset_q);
+ convert_to_utf8(dec, charset_q.buf);
- sz = strlen(piecebuf);
- if (outbuf + sizeof(outbuf) <= out + sz)
- return rfc2047; /* no munging */
- strcpy(out, piecebuf);
- out += sz;
+ strbuf_addbuf(&outbuf, dec);
+ strbuf_release(dec);
+ free(dec);
in = ep + 2;
}
- strcpy(out, in);
- strlcpy(it, outbuf, itsize);
+ strbuf_addstr(&outbuf, in);
+ strbuf_reset(it);
+ strbuf_addbuf(it, &outbuf);
+decode_header_bq_out:
+ strbuf_release(&outbuf);
+ strbuf_release(&charset_q);
+ strbuf_release(&piecebuf);
return rfc2047;
}
-static void decode_header(char *it, unsigned itsize)
+static void decode_header(struct strbuf *it)
{
-
- if (decode_header_bq(it, itsize))
+ if (decode_header_bq(it))
return;
/* otherwise "it" is a straight copy of the input.
* This can be binary guck but there is no charset specified.
*/
if (metainfo_charset)
- convert_to_utf8(it, itsize, "");
+ convert_to_utf8(it, "");
}
-static int decode_transfer_encoding(char *line, unsigned linesize, int inputlen)
+static void decode_transfer_encoding(struct strbuf *line)
{
- char *ep;
+ struct strbuf *ret;
+ int len;
switch (transfer_encoding) {
case TE_QP:
- ep = line + inputlen;
- return decode_q_segment(line, line, linesize, ep, 0);
+ ret = decode_q_segment(line, 0);
+ break;
case TE_BASE64:
- ep = line + inputlen;
- return decode_b_segment(line, line, linesize, ep);
+ ret = decode_b_segment(line);
+ break;
case TE_DONTCARE:
default:
- return inputlen;
+ return;
}
+ strbuf_reset(line);
+ strbuf_addbuf(line, ret);
+ strbuf_release(ret);
+ free(ret);
}
-static int handle_filter(char *line, unsigned linesize, int linelen);
+static void handle_filter(struct strbuf *line);
static int find_boundary(void)
{
- while(fgets(line, sizeof(line), fin) != NULL) {
- if (is_multipart_boundary(line))
+ while(!strbuf_getline(&line, fin, '\n')) {
+ if (is_multipart_boundary(&line))
return 1;
}
return 0;
@@ -655,12 +609,17 @@ static int find_boundary(void)
static int handle_boundary(void)
{
- char newline[]="\n";
+ struct strbuf newline = STRBUF_INIT;
+
+ strbuf_addch(&newline, '\n');
again:
- if (!memcmp(line+content_top->boundary_len, "--", 2)) {
+ if (line.len >= (*content_top)->len + 2 &&
+ !memcmp(line.buf + (*content_top)->len, "--", 2)) {
/* we hit an end boundary */
/* pop the current boundary off the stack */
- free(content_top->boundary);
+ strbuf_release(*content_top);
+ free(*content_top);
+ *content_top = NULL;
/* technically won't happen as is_multipart_boundary()
will fail first. But just in case..
@@ -670,7 +629,8 @@ again:
"can't recover\n");
exit(1);
}
- handle_filter(newline, sizeof(newline), strlen(newline));
+ handle_filter(&newline);
+ strbuf_release(&newline);
/* skip to the next boundary */
if (!find_boundary())
@@ -680,39 +640,44 @@ again:
/* set some defaults */
transfer_encoding = TE_DONTCARE;
- charset[0] = 0;
+ strbuf_reset(&charset);
message_type = TYPE_TEXT;
/* slurp in this section's info */
- while (read_one_header_line(line, sizeof(line), fin))
- check_header(line, sizeof(line), p_hdr_data, 0);
+ while (read_one_header_line(&line, fin))
+ check_header(&line, p_hdr_data, 0);
+ strbuf_release(&newline);
/* eat the blank line after section info */
- return (fgets(line, sizeof(line), fin) != NULL);
+ return (strbuf_getline(&line, fin, '\n') == 0);
}
-static inline int patchbreak(const char *line)
+static inline int patchbreak(const struct strbuf *line)
{
+ size_t i;
+
/* Beginning of a "diff -" header? */
- if (!memcmp("diff -", line, 6))
+ if (!prefixcmp(line->buf, "diff -"))
return 1;
/* CVS "Index: " line? */
- if (!memcmp("Index: ", line, 7))
+ if (!prefixcmp(line->buf, "Index: "))
return 1;
/*
* "--- <filename>" starts patches without headers
* "---<sp>*" is a manual separator
*/
- if (!memcmp("---", line, 3)) {
- line += 3;
+ if (line->len < 4)
+ return 0;
+
+ if (!prefixcmp(line->buf, "---")) {
/* space followed by a filename? */
- if (line[0] == ' ' && !isspace(line[1]))
+ if (line->buf[3] == ' ' && !isspace(line->buf[4]))
return 1;
/* Just whitespace? */
- for (;;) {
- unsigned char c = *line++;
+ for (i = 3; i < line->len; i++) {
+ unsigned char c = line->buf[i];
if (c == '\n')
return 1;
if (!isspace(c))
@@ -723,32 +688,25 @@ static inline int patchbreak(const char *line)
return 0;
}
-
-static int handle_commit_msg(char *line, unsigned linesize)
+static int handle_commit_msg(struct strbuf *line)
{
static int still_looking = 1;
- char *endline = line + linesize;
+ char *c;
if (!cmitmsg)
return 0;
if (still_looking) {
- char *cp = line;
- if (isspace(*line)) {
- for (cp = line + 1; *cp; cp++) {
- if (!isspace(*cp))
- break;
- }
- if (!*cp)
- return 0;
- }
- if ((still_looking = check_header(cp, endline - cp, s_hdr_data, 0)) != 0)
+ strbuf_ltrim(line);
+ if (!line->len)
+ return 0;
+ if ((still_looking = check_header(line, s_hdr_data, 0)) != 0)
return 0;
}
/* normalize the log message to UTF-8. */
if (metainfo_charset)
- convert_to_utf8(line, endline - line, charset);
+ convert_to_utf8(line, charset.buf);
if (patchbreak(line)) {
fclose(cmitmsg);
@@ -756,142 +714,132 @@ static int handle_commit_msg(char *line, unsigned linesize)
return 1;
}
- fputs(line, cmitmsg);
+ fputs(line->buf, cmitmsg);
return 0;
}
-static int handle_patch(char *line, int len)
+static void handle_patch(const struct strbuf *line)
{
- fwrite(line, 1, len, patchfile);
+ fwrite(line->buf, 1, line->len, patchfile);
patch_lines++;
- return 0;
}
-static int handle_filter(char *line, unsigned linesize, int linelen)
+static void handle_filter(struct strbuf *line)
{
static int filter = 0;
- /* filter tells us which part we left off on
- * a non-zero return indicates we hit a filter point
- */
+ /* filter tells us which part we left off on */
switch (filter) {
case 0:
- if (!handle_commit_msg(line, linesize))
+ if (!handle_commit_msg(line))
break;
filter++;
case 1:
- if (!handle_patch(line, linelen))
- break;
- filter++;
- default:
- return 1;
+ handle_patch(line);
+ break;
}
-
- return 0;
}
static void handle_body(void)
{
- int rc = 0;
- static char newline[2000];
- static char *np = newline;
- int len = strlen(line);
+ int len = 0;
+ struct strbuf prev = STRBUF_INIT;
/* Skip up to the first boundary */
- if (content_top->boundary) {
+ if (*content_top) {
if (!find_boundary())
- return;
+ goto handle_body_out;
}
do {
+ strbuf_setlen(&line, line.len + len);
+
/* process any boundary lines */
- if (content_top->boundary && is_multipart_boundary(line)) {
+ if (*content_top && is_multipart_boundary(&line)) {
/* flush any leftover */
- if (np != newline)
- handle_filter(newline, sizeof(newline),
- np - newline);
+ if (line.len)
+ handle_filter(&line);
+
if (!handle_boundary())
- return;
- len = strlen(line);
+ goto handle_body_out;
}
/* Unwrap transfer encoding */
- len = decode_transfer_encoding(line, sizeof(line), len);
- if (len < 0) {
- error("Malformed input line");
- return;
- }
+ decode_transfer_encoding(&line);
switch (transfer_encoding) {
case TE_BASE64:
case TE_QP:
{
- char *op = line;
+ struct strbuf **lines, **it, *sb;
+
+ /* Prepend any previous partial lines */
+ strbuf_insert(&line, 0, prev.buf, prev.len);
+ strbuf_reset(&prev);
/* binary data most likely doesn't have newlines */
if (message_type != TYPE_TEXT) {
- rc = handle_filter(line, sizeof(line), len);
+ handle_filter(&line);
break;
}
-
/*
* This is a decoded line that may contain
* multiple new lines. Pass only one chunk
* at a time to handle_filter()
*/
- do {
- while (op < line + len && *op != '\n')
- *np++ = *op++;
- *np = *op;
- if (*np != 0) {
- /* should be sitting on a new line */
- *(++np) = 0;
- op++;
- rc = handle_filter(newline, sizeof(newline), np - newline);
- np = newline;
- }
- } while (op < line + len);
+ lines = strbuf_split(&line, '\n');
+ for (it = lines; (sb = *it); it++) {
+ if (*(it + 1) == NULL) /* The last line */
+ if (sb->buf[sb->len - 1] != '\n') {
+ /* Partial line, save it for later. */
+ strbuf_addbuf(&prev, sb);
+ break;
+ }
+ handle_filter(sb);
+ }
/*
- * The partial chunk is saved in newline and will be
+ * The partial chunk is saved in "prev" and will be
* appended by the next iteration of read_line_with_nul().
*/
+ strbuf_list_free(lines);
break;
}
default:
- rc = handle_filter(line, sizeof(line), len);
+ handle_filter(&line);
}
- if (rc)
- /* nothing left to filter */
- break;
- } while ((len = read_line_with_nul(line, sizeof(line), fin)));
- return;
+ strbuf_reset(&line);
+ if (strbuf_avail(&line) < 100)
+ strbuf_grow(&line, 100);
+ } while ((len = read_line_with_nul(line.buf, strbuf_avail(&line), fin)));
+
+handle_body_out:
+ strbuf_release(&prev);
}
-static void output_header_lines(FILE *fout, const char *hdr, char *data)
+static void output_header_lines(FILE *fout, const char *hdr, const struct strbuf *data)
{
+ const char *sp = data->buf;
while (1) {
- char *ep = strchr(data, '\n');
+ char *ep = strchr(sp, '\n');
int len;
if (!ep)
- len = strlen(data);
+ len = strlen(sp);
else
- len = ep - data;
- fprintf(fout, "%s: %.*s\n", hdr, len, data);
+ len = ep - sp;
+ fprintf(fout, "%s: %.*s\n", hdr, len, sp);
if (!ep)
break;
- data = ep + 1;
+ sp = ep + 1;
}
}
static void handle_info(void)
{
- char *sub;
- char *hdr;
+ struct strbuf *hdr;
int i;
for (i = 0; header[i]; i++) {
-
/* only print inbody headers if we output a patch file */
if (patch_lines && s_hdr_data[i])
hdr = s_hdr_data[i];
@@ -901,20 +849,18 @@ static void handle_info(void)
continue;
if (!memcmp(header[i], "Subject", 7)) {
- if (keep_subject)
- sub = hdr;
- else {
- sub = cleanup_subject(hdr);
- cleanup_space(sub);
+ if (!keep_subject) {
+ cleanup_subject(hdr);
+ cleanup_space(hdr);
}
- output_header_lines(fout, "Subject", sub);
+ output_header_lines(fout, "Subject", hdr);
} else if (!memcmp(header[i], "From", 4)) {
handle_from(hdr);
- fprintf(fout, "Author: %s\n", name);
- fprintf(fout, "Email: %s\n", email);
+ fprintf(fout, "Author: %s\n", name.buf);
+ fprintf(fout, "Email: %s\n", email.buf);
} else {
cleanup_space(hdr);
- fprintf(fout, "%s: %s\n", header[i], hdr);
+ fprintf(fout, "%s: %s\n", header[i], hdr->buf);
}
}
fprintf(fout, "\n");
@@ -941,8 +887,8 @@ static int mailinfo(FILE *in, FILE *out, int ks, const char *encoding,
return -1;
}
- p_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(char *));
- s_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(char *));
+ p_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(*p_hdr_data));
+ s_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(*s_hdr_data));
do {
peek = fgetc(in);
@@ -950,8 +896,8 @@ static int mailinfo(FILE *in, FILE *out, int ks, const char *encoding,
ungetc(peek, in);
/* process the email header */
- while (read_one_header_line(line, sizeof(line), fin))
- check_header(line, sizeof(line), p_hdr_data, 1);
+ while (read_one_header_line(&line, fin))
+ check_header(&line, p_hdr_data, 1);
handle_body();
handle_info();
--
1.5.4.5
--
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