sfeed

simple feed reader - forked from git.codemadness.org/sfeed
git clone git://src.gearsix.net/sfeed
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commit 7dc9d08969c61ea0e187f54bba58f3d98af63135
parent b3940ddf986bad891c7d76249860957691affda7
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Sat, 22 Aug 2015 14:58:28 +0200

util: support ipv6 address, parse port separately

Diffstat:
Mutil.c | 47+++++++++++++++++++++++++++++++++++------------
Mutil.h | 1+
2 files changed, 36 insertions(+), 12 deletions(-)

diff --git a/util.c b/util.c @@ -25,10 +25,12 @@ encodehex(unsigned char c, char *s) int parseuri(const char *s, struct uri *u, int rel) { - const char *p = s; + const char *p = s, *b; + char *endptr = NULL; size_t i; + unsigned long l; - u->proto[0] = u->host[0] = u->path[0] = '\0'; + u->proto[0] = u->host[0] = u->path[0] = u->port[0] = '\0'; if (!*s) return 0; @@ -41,7 +43,7 @@ parseuri(const char *s, struct uri *u, int rel) *p == '+' || *p == '-' || *p == '.'); p++) ; if (!strncmp(p, "://", 3)) { - if (p - s + 1 >= (ssize_t)sizeof(u->proto)) + if (p - s >= (ssize_t)sizeof(u->proto)) return -1; /* protocol too long */ memcpy(u->proto, s, p - s); u->proto[p - s] = '\0'; @@ -53,20 +55,41 @@ parseuri(const char *s, struct uri *u, int rel) goto readpath; } } - /* domain / host part, skip until "/" or end. */ - i = strcspn(p, "/"); - if (i + 1 >= sizeof(u->host)) - return -1; /* host too long */ - memcpy(u->host, p, i); - u->host[i] = '\0'; - p = &p[i]; - + /* IPv6 address */ + if (*p == '[') { + /* bracket not found or host too long */ + if (!(b = strchr(p, ']')) || b - p >= (ssize_t)sizeof(u->host)) + return -1; + memcpy(u->host, p + 1, b - p - 1); + u->host[b - p] = '\0'; + p = b + 1; + } else { + /* domain / host part, skip until port, path or end. */ + if ((i = strcspn(p, ":/")) >= sizeof(u->host)) + return -1; /* host too long */ + memcpy(u->host, p, i); + u->host[i] = '\0'; + p = &p[i]; + } + /* port */ + if (*p == ':') { + if ((i = strcspn(++p, "/")) >= sizeof(u->port)) + return -1; /* port too long */ + memcpy(u->port, p, i); + u->port[i] = '\0'; + /* check for valid port */ + errno = 0; + l = strtoul(u->port, &endptr, 10); + if (errno || *endptr != '\0' || !l || l > 65535) + return -1; + p = &p[i]; + } readpath: if (u->host[0]) { p = &p[strspn(p, "/")]; strlcpy(u->path, "/", sizeof(u->path)); } else { - /* having no host is an error in this case */ + /* absolute uri must have a host specified */ if (!rel) return -1; } diff --git a/util.h b/util.h @@ -19,6 +19,7 @@ struct uri { char proto[48]; char host[255]; char path[2048]; + char port[6]; /* numeric port */ }; enum { FieldUnixTimestamp = 0, FieldTimeFormatted, FieldTitle, FieldLink,