diff options
| -rw-r--r-- | daemon.c | 52 | ||||
| -rw-r--r-- | interpolate.c | 26 | ||||
| -rw-r--r-- | interpolate.h | 3 |
3 files changed, 61 insertions, 20 deletions
@@ -71,7 +71,7 @@ static struct interp interp_table[] = { { "%IP", 0}, { "%P", 0}, { "%D", 0}, - { "%%", "%"}, + { "%%", 0}, }; @@ -405,7 +405,11 @@ static void make_service_overridable(const char *name, int ena) { die("No such service %s", name); } -static void parse_extra_args(char *extra_args, int buflen) +/* + * Separate the "extra args" information as supplied by the client connection. + * Any resulting data is squirrelled away in the given interpolation table. + */ +static void parse_extra_args(struct interp *table, char *extra_args, int buflen) { char *val; int vallen; @@ -417,18 +421,17 @@ static void parse_extra_args(char *extra_args, int buflen) val = extra_args + 5; vallen = strlen(val) + 1; if (*val) { - char *port; - char *save = xmalloc(vallen); /* FIXME: Leak */ - - interp_table[INTERP_SLOT_HOST].value = save; - strlcpy(save, val, vallen); - port = strrchr(save, ':'); + /* Split <host>:<port> at colon. */ + char *host = val; + char *port = strrchr(host, ':'); if (port) { *port = 0; port++; - interp_table[INTERP_SLOT_PORT].value = port; + interp_set_entry(table, INTERP_SLOT_PORT, port); } + interp_set_entry(table, INTERP_SLOT_HOST, host); } + /* On to the next one */ extra_args = val + vallen; } @@ -438,8 +441,6 @@ static void parse_extra_args(char *extra_args, int buflen) void fill_in_extra_table_entries(struct interp *itable) { char *hp; - char *canon_host = NULL; - char *ipaddr = NULL; /* * Replace literal host with lowercase-ized hostname. @@ -466,10 +467,12 @@ void fill_in_extra_table_entries(struct interp *itable) for (ai = ai0; ai; ai = ai->ai_next) { struct sockaddr_in *sin_addr = (void *)ai->ai_addr; - canon_host = xstrdup(ai->ai_canonname); inet_ntop(AF_INET, &sin_addr->sin_addr, addrbuf, sizeof(addrbuf)); - ipaddr = addrbuf; + interp_set_entry(interp_table, + INTERP_SLOT_CANON_HOST, ai->ai_canonname); + interp_set_entry(interp_table, + INTERP_SLOT_IP, addrbuf); break; } freeaddrinfo(ai0); @@ -483,7 +486,6 @@ void fill_in_extra_table_entries(struct interp *itable) static char addrbuf[HOST_NAME_MAX + 1]; hent = gethostbyname(interp_table[INTERP_SLOT_HOST].value); - canon_host = xstrdup(hent->h_name); ap = hent->h_addr_list; memset(&sa, 0, sizeof sa); @@ -493,12 +495,11 @@ void fill_in_extra_table_entries(struct interp *itable) inet_ntop(hent->h_addrtype, &sa.sin_addr, addrbuf, sizeof(addrbuf)); - ipaddr = addrbuf; + + interp_set_entry(interp_table, INTERP_SLOT_CANON_HOST, hent->h_name); + interp_set_entry(interp_table, INTERP_SLOT_IP, addrbuf); } #endif - - interp_table[INTERP_SLOT_CANON_HOST].value = canon_host; /* FIXME: Leak */ - interp_table[INTERP_SLOT_IP].value = xstrdup(ipaddr); /* FIXME: Leak */ } @@ -542,8 +543,14 @@ static int execute(struct sockaddr *addr) if (len && line[len-1] == '\n') line[--len] = 0; + /* + * Initialize the path interpolation table for this connection. + */ + interp_clear_table(interp_table, ARRAY_SIZE(interp_table)); + interp_set_entry(interp_table, INTERP_SLOT_PERCENT, "%"); + if (len != pktlen) { - parse_extra_args(line + len + 1, pktlen - len - 1); + parse_extra_args(interp_table, line + len + 1, pktlen - len - 1); fill_in_extra_table_entries(interp_table); } @@ -553,7 +560,12 @@ static int execute(struct sockaddr *addr) if (!strncmp("git-", line, 4) && !strncmp(s->name, line + 4, namelen) && line[namelen + 4] == ' ') { - interp_table[INTERP_SLOT_DIR].value = line+namelen+5; + /* + * Note: The directory here is probably context sensitive, + * and might depend on the actual service being performed. + */ + interp_set_entry(interp_table, + INTERP_SLOT_DIR, line + namelen + 5); return run_service(interp_table, s); } } diff --git a/interpolate.c b/interpolate.c index 4570c123d..62701d843 100644 --- a/interpolate.c +++ b/interpolate.c @@ -4,9 +4,35 @@ #include <string.h> +#include "git-compat-util.h" #include "interpolate.h" +void interp_set_entry(struct interp *table, int slot, char *value) +{ + char *oldval = table[slot].value; + char *newval = value; + + if (oldval) + free(oldval); + + if (value) + newval = xstrdup(value); + + table[slot].value = newval; +} + + +void interp_clear_table(struct interp *table, int ninterps) +{ + int i; + + for (i = 0; i < ninterps; i++) { + interp_set_entry(table, i, NULL); + } +} + + /* * Convert a NUL-terminated string in buffer orig * into the supplied buffer, result, whose length is reslen, diff --git a/interpolate.h b/interpolate.h index d16f9244f..a55fb8e07 100644 --- a/interpolate.h +++ b/interpolate.h @@ -16,6 +16,9 @@ struct interp { char *value; }; +extern void interp_set_entry(struct interp *table, int slot, char *value); +extern void interp_clear_table(struct interp *table, int ninterps); + extern int interpolate(char *result, int reslen, const char *orig, const struct interp *interps, int ninterps); |