diff options
Diffstat (limited to 'strbuf.c')
| -rw-r--r-- | strbuf.c | 43 |
1 files changed, 43 insertions, 0 deletions
@@ -237,6 +237,22 @@ void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn, } } +size_t strbuf_expand_dict_cb(struct strbuf *sb, const char *placeholder, + void *context) +{ + struct strbuf_expand_dict_entry *e = context; + size_t len; + + for (; e->placeholder && (len = strlen(e->placeholder)); e++) { + if (!strncmp(placeholder, e->placeholder, len)) { + if (e->value) + strbuf_addstr(sb, e->value); + return len; + } + } + return 0; +} + size_t strbuf_fread(struct strbuf *sb, size_t size, FILE *f) { size_t res; @@ -272,6 +288,33 @@ ssize_t strbuf_read(struct strbuf *sb, int fd, size_t hint) return sb->len - oldlen; } +#define STRBUF_MAXLINK (2*PATH_MAX) + +int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint) +{ + if (hint < 32) + hint = 32; + + while (hint < STRBUF_MAXLINK) { + int len; + + strbuf_grow(sb, hint); + len = readlink(path, sb->buf, hint); + if (len < 0) { + if (errno != ERANGE) + break; + } else if (len < hint) { + strbuf_setlen(sb, len); + return 0; + } + + /* .. the buffer was too small - try again */ + hint *= 2; + } + strbuf_release(sb); + return -1; +} + int strbuf_getline(struct strbuf *sb, FILE *fp, int term) { int ch; |